{"id":4041,"date":"2024-02-20T20:32:17","date_gmt":"2024-02-20T12:32:17","guid":{"rendered":"http:\/\/www.ponybai.com\/?p=4041"},"modified":"2023-12-05T15:55:14","modified_gmt":"2023-12-05T07:55:14","slug":"%e5%8a%a8%e6%80%81-visualforce-%e7%bb%84%e4%bb%b6","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=4041","title":{"rendered":"\u52a8\u6001 Visualforce \u7ec4\u4ef6"},"content":{"rendered":"\n

Visualforce \u7684\u4e3b\u8981\u76ee\u7684\u662f \u4e00\u79cd\u9759\u6001\u7684\u6807\u8bb0\u9a71\u52a8\u8bed\u8a00\uff0c\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u521b\u5efa\u4e0e Salesforce \u5916\u89c2\u3002\u4f46\u662f\uff0c\u6709 \u662f\u9700\u8981\u4ee5\u7f16\u7a0b\u65b9\u5f0f\u521b\u5efa\u9875\u9762\u7684\u60c5\u51b5\u3002\u901a\u5e38\uff0c\u8fd9\u662f\u4e3a\u4e86 \u5b9e\u73b0\u6807\u51c6\u96be\u4ee5\u6216\u4e0d\u53ef\u80fd\u5b9e\u73b0\u7684\u590d\u6742\u7528\u6237\u754c\u9762\u884c\u4e3a \u6807\u8bb0\u3002<\/p>\n\n\n\n

<\/a>\u52a8\u6001\u89c6\u89c9\u529b \u7ec4\u4ef6\u63d0\u4f9b\u4e86\u4e00\u79cd\u521b\u5efa Visualforce \u9875\u9762\u7684\u65b9\u6cd5\uff0c\u8be5\u9875\u9762\u6839\u636e\u5404\u79cd \u72b6\u6001\uff0c\u4f8b\u5982\u7528\u6237\u7684\u6743\u9650\u6216\u64cd\u4f5c\u3001\u7528\u6237\u6216\u7ec4\u7ec7\u9996\u9009\u9879\u3001 \u6b63\u5728\u663e\u793a\u7684\u6570\u636e\uff0c\u7b49\u7b49\u3002\u52a8\u6001 Visualforce \u7ec4\u4ef6\u4e0d\u662f\u4f7f\u7528\u6807\u51c6\u6807\u8bb0\uff0c\u800c\u662f\u5728 \u9876\u70b9\u3002\u52a8\u6001 Visualforce \u7ec4\u4ef6\u5728 Apex \u4e2d\u5b9a\u4e49\uff0c\u5982\u4e0b\u6240\u793a \u8fd9\uff1a<\/p>\n\n\n\n

Component.Component_namespace<\/em>.Component_name<\/em><\/code><\/pre>\n\n\n\n
\u4e3a \u793a\u4f8b\uff0c\u5219\u53d8\u4e3a .<\/p>\n\n\n\n
<apex:dataTable><\/samp>Component.Apex.DataTable<\/samp><\/p>\n\n\n\n
\u6ce8\u610f<\/p>\n\n\n\n
\u6807\u51c6\u5143\u4ef6\u53c2\u8003\u5305\u542b \u6240\u6709\u6709\u6548 Visualforce \u7ec4\u4ef6\u7684\u52a8\u6001\u8868\u793a\u3002\u5728 Apex \u4e2d\u52a8\u6001\u8868\u793a\u7684 Visualforce \u7ec4\u4ef6\u7684\u884c\u4e3a\u7c7b\u4f3c\u4e8e\u5e38\u89c4\u7c7b\u3002\u6bcf \u5b58\u5728\u4e8e\u6807\u51c6 Visualforce \u7ec4\u4ef6\u4e0a\u7684\u5c5e\u6027\u53ef\u4f5c\u4e3a \u5c5e\u6027\uff0c\u4ee5\u53ca get \u548c set \u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u60a8 \u53ef\u4ee5\u5c06\u7ec4\u4ef6\u4e0a\u7684\u5c5e\u6027\u64cd\u4f5c\u4e3a \u9075\u5faa\uff1a<\/p>\n\n\n\n
value<\/samp><apex:outputText><\/samp><\/p>\n\n\n\n
Component.Apex.OutputText outText = new Component.Apex.OutputText();\noutText.value = 'Some dynamic output text.';<\/code><\/pre>\n\n\n\n
\u8bf7\u8003\u8651\u5728\u4ee5\u4e0b\u60c5\u51b5\u4e0b\u4f7f\u7528\u52a8\u6001 Visualforce \u7ec4\u4ef6\uff1a<\/p>\n\n\n\n
    \n
  • \u60a8\u53ef\u4ee5\u4f7f\u7528\u52a8\u6001 Visualforce \u590d\u6742\u63a7\u5236\u903b\u8f91\u4e2d\u7684\u7ec4\u4ef6\uff0c\u4ee5\u7ec4\u5408\u65b9\u5f0f\u7ec4\u88c5\u7ec4\u4ef6 \u4f7f\u7528\u540c\u7b49\u6807\u51c6\u7684 Visualforce \u8fdb\u884c\u521b\u4f5c\u5177\u6709\u6311\u6218\u6027\u6216\u4e0d\u53ef\u80fd\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 \u6807\u51c6 Visualforce \u7ec4\u4ef6\uff0c\u60a8 \u901a\u5e38\u4f7f\u7528\u5177\u6709\u5168\u5c40\u516c\u5f0f\u51fd\u6570\u7684\u5c5e\u6027\u6765\u63a7\u5236\u7ec4\u4ef6\u7684\u53ef\u89c1\u6027\u3002\u901a\u8fc7\u5728 Apex \u4e2d\u7f16\u5199\u63a7\u5236\u903b\u8f91\uff0c\u60a8\u53ef\u4ee5\u9009\u62e9\u663e\u793a\u7ec4\u4ef6 \u52a8\u6001\u5730\u5177\u6709\u66f4\u81ea\u7136\u7684\u673a\u5236\u3002rendered<\/samp>IF()<\/samp><\/li>\n\n\n\n
  • \u5982\u679c\u60a8\u77e5\u9053\u5c06\u904d\u5386\u5177\u6709\u67d0\u4e9b\u5b57\u6bb5\u7684\u5bf9\u8c61\uff0c\u4f46\u4e0d\u662f \u5177\u4f53\u5230\u54ea\u4e9b\u5bf9\u8c61\uff0c\u52a8\u6001 Visualforce \u7ec4\u4ef6\u53ef\u4ee5\u201c\u63d2\u5165 in\u201c\uff0c\u4f7f\u7528\u6cdb\u578b sObject \u5f15\u7528\u8868\u793a\u5bf9\u8c61\u3002\u67e5\u770b\u66f4\u591a \u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u4f7f\u7528\u76f8\u5173\u5217\u8868\u7684\u793a\u4f8b\u3002<\/li>\n<\/ul>\n\n\n\n
    \u8b66\u544a<\/p>\n\n\n\n
    \u52a8\u6001\u89c6\u89c9\u529b \u7ec4\u4ef6\u4e0d\u662f\u5728\u7ec4\u7ec7\u4e2d\u521b\u5efa\u65b0 Visualforce \u9875\u9762\u7684\u4e3b\u8981\u65b9\u5f0f\u3002 \u73b0\u6709 Visualforce \u9875\u9762 \u4e0d\u5e94\u4ee5\u52a8\u6001\u65b9\u5f0f\u91cd\u5199\uff0c\u5bf9\u4e8e\u5927\u591a\u6570\u7528\u4f8b\uff0c\u6807\u51c6\u7684 Visualforce \u7ec4\u4ef6\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\uff0c\u5e76\u4e14 \u9996\u9009\u3002\u4ec5\u5f53\u9875\u9762\u5fc5\u987b\u65f6\uff0c\u624d\u5e94\u4f7f\u7528\u52a8\u6001 Visualforce \u7ec4\u4ef6 \u4ee5\u65e0\u6cd5\u4f18\u96c5\u5730\u7f16\u7801\u4e3a\u9759\u6001\u7684\u65b9\u5f0f\u9002\u5e94\u7528\u6237\u72b6\u6001\u6216\u64cd\u4f5c \u6807\u8bb0\u3002<\/p>\n\n\n\n
    \u52a8\u6001\u7ec4\u4ef6\u9650\u5236<\/h1>\n\n\n\n
    \u5e76\u975e Visualforce \u7684\u6bcf\u4e2a\u529f\u80fd\u90fd\u80fd\u4f7f \u5728\u52a8\u6001\u4e0a\u4e0b\u6587\u4e2d\u611f\u77e5\uff0c\u56e0\u6b64\u67d0\u4e9b\u7ec4\u4ef6\u4e0d\u80fd\u52a8\u6001\u4f7f\u7528\u3002<\/p>\n\n\n\n
      \n
    • \u4ee5\u4e0b\u6807\u51c6 Visualforce \u7ec4\u4ef6\u5728 Apex \u4e2d\u6ca1\u6709\u76f8\u5e94\u7684\u52a8\u6001\u8868\u793a\uff1a\n
        \n
      • <apex:attribute><\/samp><\/li>\n\n\n\n
      • <apex:component><\/samp><\/li>\n\n\n\n
      • <apex:componentBody><\/samp><\/li>\n\n\n\n
      • <apex:composition><\/samp><\/li>\n\n\n\n
      • <apex:define><\/samp><\/li>\n\n\n\n
      • <apex:dynamicComponent><\/samp><\/li>\n\n\n\n
      • <apex:include><\/samp><\/li>\n\n\n\n
      • <apex:insert><\/samp><\/li>\n\n\n\n
      • <apex:param><\/samp><\/li>\n\n\n\n
      • <apex:variable><\/samp><\/li>\n<\/ul>\n<\/li>\n\n\n\n
      • \u5982\u679c\u52a8\u6001 Visualforce \u7ec4\u4ef6 \u5f15\u7528\u7279\u5b9a\u7684 sObject \u5b57\u6bb5\uff0c\u8be5\u5b57\u6bb5\u7a0d\u540e\u88ab\u5220\u9664\uff0c\u5373\u8be5\u5b57\u6bb5\u7684 Apex \u4ee3\u7801 \u5b57\u6bb5\u5f15\u7528\u4ecd\u5c06\u7f16\u8bd1\uff0c\u4f46\u9875\u9762\u5728\u67e5\u770b\u65f6\u5c06\u5931\u8d25\u3002\u6b64\u5916\uff0c\u60a8\u8fd8\u53ef\u4ee5 \u521b\u5efa\u5bf9\u5168\u5c40\u53d8\u91cf\uff08\u5982 \u6216\uff09\u7684\u5f15\u7528\uff0c\u7136\u540e\u5220\u9664\u5f15\u7528\u7684\u9879\uff0c\u4f7f\u7528 \u7c7b\u4f3c\u7684\u7ed3\u679c\u3002\u8bf7\u9a8c\u8bc1\u6b64\u7c7b\u9875\u9762\u662f\u5426\u7ee7\u7eed\u6309\u9884\u671f\u5de5\u4f5c\u3002$Setup<\/samp>$Label<\/samp><\/li>\n\n\n\n
      • \u52a8\u6001 Visualforce \u9875\u9762\u548c \u8868\u8fbe\u5f0f\u6bd4\u9759\u6001\u9875\u9762\u66f4\u4e25\u683c\u5730\u68c0\u67e5\u5c5e\u6027\u7c7b\u578b\u3002<\/li>\n\n\n\n
      • \u60a8\u65e0\u6cd5\u5728\u52a8\u6001\u4e0a\u8bbe\u7f6e\u201c\u76f4\u901a\u201dHTML \u5c5e\u6027\u00a0\u7ec4\u4ef6\u3002<\/li>\n<\/ul>\n\n\n\n
        \u521b\u5efa\u548c\u663e\u793a\u52a8\u6001\u7ec4\u4ef6<\/h1>\n\n\n\n
        \u6ce8\u610f<\/p>\n\n\n\n
        \u51fa\u4e8e\u6559\u5b66\u76ee\u7684\uff0c\u672c\u8282\u4e2d\u7684\u793a\u4f8b\u7279\u610f\u7b80\u5355\u3002\u5bf9\u4e8e\u4e00\u4e2a \u6709\u5173\u4f55\u65f6\u53ef\u80fd\u4ece\u52a8\u6001 Visualforce \u7ec4\u4ef6\u4e2d\u53d7\u76ca\u7684\u66f4\u5b8c\u6574\u793a\u4f8b\uff0c\u8bf7\u53c2\u9605\u4f7f\u7528\u76f8\u5173\u5217\u8868\u7684\u793a\u4f8b\u3002\u5728\u9875\u9762\u4e0a\u5d4c\u5165\u52a8\u6001 Visualforce \u7ec4\u4ef6\u5206\u4e3a\u4e24\u90e8\u5206\uff1a<\/p>\n\n\n\n
          \n
        1. \u6dfb\u52a0\u6807\u7b7e \u9875\u9762\u4e0a\u7684\u67d0\u4e2a\u4f4d\u7f6e\u3002\u6b64\u6807\u8bb0\u5145\u5f53\u52a8\u6001\u7684\u5360\u4f4d\u7b26 \u5143\u4ef6\u3002<apex:dynamicComponent><\/samp><\/li>\n\n\n\n
        2. \u5728 \u60a8\u7684\u63a7\u5236\u5668\u6216\u63a7\u5236\u5668\u6269\u5c55\u3002<\/li>\n<\/ol>\n\n\n\n
          \u6807\u7b7e\u6709\u4e00\u4e2a required \u5c5e\u6027\u2014\u2014\u63a5\u53d7\u8fd4\u56de \u52a8\u6001\u7ec4\u4ef6\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8981\u52a8\u6001\u751f\u6210 \u90e8\u5206\u6807\u9898\u4e0d\u540c \u5982\u679c\u63d0\u4ea4\u8868\u5355\u7684\u622a\u6b62\u65e5\u671f\u5df2\u8fc7\uff0c\u60a8\u53ef\u4ee5 \u4f7f\u7528\u4ee5\u4e0b\u6807\u8bb0\u548c\u63a7\u5236\u5668 \u6cd5\u5178\uff1a<\/p>\n\n\n\n
          <apex:dynamicComponent><\/samp>componentValue<\/samp><\/p>\n\n\n\n
          <apex:page standardController=\"Contact\" extensions=\"DynamicComponentExample\">\n    <apex:dynamicComponent componentValue=\"{!headerWithDueDateCheck}\"\/>\n    <apex:form>\n        <apex:inputField value=\"{!Contact.LastName}\"\/> \n        <apex:commandButton value=\"Save\" action=\"{!save}\"\/> \n    <\/apex:form> \n<\/apex:page><\/code><\/pre>\n\n\n\n
          public class DynamicComponentExample {\n    public DynamicComponentExample(ApexPages.StandardController con) { }\n    public Component.Apex.SectionHeader getHeaderWithDueDateCheck() {\n        date dueDate = date.newInstance(2011, 7, 4);\n        boolean overdue = date.today().daysBetween(dueDate) < 0;\n\n        Component.Apex.SectionHeader sectionHeader = new Component.Apex.SectionHeader();\n        if (overdue) {\n            sectionHeader.title = 'This Form Was Due On ' + dueDate.format() + '!';\n            return sectionHeader;\n        } else {\n            sectionHeader.title = 'Form Submission';\n            return sectionHeader;\n        }\n    }\n}<\/code><\/pre>\n\n\n\n
          \u4f60 \u5355\u4e2a\u9875\u9762\u4e0a\u53ef\u4ee5\u6709\u591a\u4e2a\u7ec4\u4ef6\u3002<\/p>\n\n\n\n
          <apex:dynamicComponent><\/samp><\/p>\n\n\n\n
          \u6bcf \u52a8\u6001\u7ec4\u4ef6\u53ef\u4ee5\u8bbf\u95ee\u4e00\u7ec4\u901a\u7528\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\u3002\u60a8\u53ef\u4ee5\u67e5\u770b \u6b64\u5217\u8868\u5728 Apex \u5f00\u53d1\u4eba\u5458\u6307\u5357\u4e2d\u6807\u9898\u4e3a\u201c\u7ec4\u4ef6\u7c7b\u201d\u7684\u7ae0\u8282\u4e2d\u3002<\/p>\n\n\n\n
          \u52a8\u6001\u81ea\u5b9a\u4e49\u7ec4\u4ef6<\/h2>\n\n\n\n
          \u52a8\u6001\u4f7f\u7528\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u7684\u5de5\u4f5c\u65b9\u5f0f\u4e0e\u6807\u51c6 Visualforce \u7ec4\u4ef6\u5b8c\u5168\u76f8\u540c\u3002\u53ea \u5c06\u547d\u540d\u7a7a\u95f4\u66f4\u6539\u4e3a\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u7684\u547d\u540d\u7a7a\u95f4\u3002\u60a8\u7684\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4f4d\u4e8e \u547d\u540d\u7a7a\u95f4\uff0c\u4ee5\u4fbf\u60a8\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u547d\u540d\u7a7a\u95f4 \u52a8\u6001\u559c\u6b22 \u8fd9\uff1a<\/p>\n\n\n\n
          c<\/samp><\/p>\n\n\n\n
          Component.c.MyCustomComponent myDy = new Component.c.MyCustomComponent();<\/code><\/pre>\n\n\n\n
          \u4e3a\u4e86\u65b9\u4fbf\u60a8\u81ea\u5df1\u7684\u7ec4\u4ef6\uff0c\u60a8\u53ef\u4ee5\u7701\u7565\u547d\u540d\u7a7a\u95f4\uff0c\u4f8b\u5982 \u6240\u4ee5\uff1a<\/p>\n\n\n\n
          Component.MyCustomComponent myDy = new Component.MyCustomComponent();<\/code><\/pre>\n\n\n\n
          \u5982\u679c\u5728\u5305\u4e2d\u4f7f\u7528\u7b2c\u4e09\u65b9\u63d0\u4f9b\u7684\u7ec4\u4ef6\uff0c\u8bf7\u4f7f\u7528\u547d\u540d\u7a7a\u95f4 \u5305\u88c5\u7684 \u4f9b\u5e94\u5546\uff1a<\/p>\n\n\n\n
          Component.TheirName.UsefulComponent usefulC = new Component.TheirName.UsefulComponent();<\/code><\/pre>\n\n\n\n
          \u901a\u8fc7\u6784\u9020\u51fd\u6570\u4f20\u9012\u5c5e\u6027<\/h2>\n\n\n\n
          \u65e0\u9700\u901a\u8fc7\u5176\u5c5e\u6027\u8bbe\u7f6e\u7ec4\u4ef6\u5c5e\u6027\uff0c\u53ea\u9700\u4f20\u5165\u5373\u53ef \u4e00\u4e2a\u6216\u591a\u4e2a\u5c5e\u6027\u7684\u5217\u8868\uff0c\u901a\u8fc7 \u6784\u9020 \u51fd\u6570\uff1a<\/p>\n\n\n\n
          Component.Apex.DataList dynDataList = \n    new Component.Apex.DataList(id='myDataList', rendered=true);<\/code><\/pre>\n\n\n\n
          \u5982\u679c \u6784\u9020\u51fd\u6570\u4e2d\u672a\u5b9a\u4e49\u5c5e\u6027\uff0c\u5373\u7ec4\u4ef6\u7684\u9ed8\u8ba4\u503c \u7528\u4e8e\u8be5\u5c5e\u6027\u3002\u6709\u4e24\u4e2a\u7ec4\u4ef6\u5fc5\u987b\u5728\u6784\u9020\u51fd\u6570\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u5c5e\u6027\uff1a \u800c\u4e0d\u662f\u901a\u8fc7\u5c5e\u6027\uff1a<\/p>\n\n\n\n
            \n
          • Component.Apex.Detail<\/samp>\u5fc5\u987b\u5df2\u7ecf\u4f20\u9012\u7ed9\u5b83\u7684 \u6784\u9020\u51fd\u6570\uff0c\u5982\u679c\u8981\u663e\u793a \u7684 Chatter \u4fe1\u606f\u548c\u63a7\u4ef6 \u4e00\u4e2a\u8bb0\u5f55\u3002\u5426\u5219\uff0c\u6b64\u5c5e\u6027\u59cb\u7ec8\u4e3a false\u3002showChatter=true<\/samp><\/li>\n\n\n\n
          • Component.Apex.SelectList<\/samp>\u5fc5\u987b\u5df2\u7ecf\u4f20\u9012\u7ed9\u5b83\u7684 \u6784\u9020\u51fd\u6570\uff08\u5982\u679c\u5e0c\u671b\u7528\u6237\u80fd\u591f\u9009\u62e9\u591a\u4e2a\u9009\u9879\uff09 \u4e00\u6b21\u3002\u5426\u5219\uff0c\u6b64\u503c\u59cb\u7ec8\u4e3a \u3002multiSelect=true<\/samp>false<\/samp><\/li>\n<\/ul>\n\n\n\n
            \u8fd9\u4e9b\u503c\u662f\u5e03\u5c14\u503c\uff0c\u800c\u4e0d\u662f\u5b57\u7b26\u4e32;\u4f60\u4e0d\u9700\u8981\u628a\u5b83\u4eec\u5c01\u95ed\u8d77\u6765 \u7528\u5355\u5f15\u53f7\u5f15\u8d77\u6765\u3002<\/p>\n\n\n\n
            \u8b66\u544a<\/p>\n\n\n\n
            \u4e0d\u80fd\u901a\u8fc7\u7c7b\u6784\u9020\u51fd\u6570\u4f20\u9012\u5c5e\u6027 \u5982\u679c\u5c5e\u6027\u540d\u79f0\u4e0e Apex \u5173\u952e\u5b57\u5339\u914d\u3002\u4f8b\u5982\uff0c\u4e0d\u80fd\u901a\u8fc7\u6784\u9020\u51fd\u6570\uff0c \u56e0\u4e3a List \u662f\u4fdd\u7559\u5173\u952e\u5b57\u3002\u540c\u6837\uff0c\u65e0\u6cd5\u5728\u6784\u9020\u51fd\u6570\u4e2d\u5b9a\u4e49\u5c5e\u6027\uff0c\u56e0\u4e3a \u8fd9\u4e5f\u662f\u4e00\u4e2a\u5173\u952e\u8bcd\u3002Component.Apex.RelatedList<\/samp>list<\/samp>Component.Apex.OutputLabel<\/samp>for<\/samp><\/p>\n\n\n\n
            \u5b9a\u4e49\u8868\u8fbe\u5f0f\u548c\u4efb\u610f HTML<\/h2>\n\n\n\n
            \u53ef\u4ee5\u4f7f\u7528\u8be5\u5c5e\u6027\u6dfb\u52a0\u8868\u8fbe\u5f0f\u8bed\u8a00\u8bed\u53e5\u3002\u8ffd\u52a0\u5728\u5c5e\u6027\u540d\u79f0\u4e4b\u524d\u4ee5\u4f20\u5165\u8868\u8fbe\u5f0f\u8bed\u53e5\u3002 \u4e0e\u9759\u6001\u6807\u8bb0\u4e00\u6837\uff0c\u8868\u8fbe\u5f0f\u5fc5\u987b\u4f7f\u7528\u8bed\u6cd5\u8fdb\u884c\u5305\u88c5\u3002\u8fd9\u662f\u4e00\u4e2a \u4f8b\uff1a<\/p>\n\n\n\n
            expressions<\/samp>expressions<\/samp>{! }<\/samp><\/p>\n\n\n\n
            Component.Apex.Detail detail = new Component.Apex.Detail();\ndetail.expressions.subject = '{!Account.ownerId}';\ndetail.relatedList = false;\ndetail.title = false;<\/code><\/pre>\n\n\n\n
            \u6709\u6548\u8868\u8fbe\u5f0f\u5305\u62ec\u5f15\u7528\u6807\u51c6\u5bf9\u8c61\u548c\u81ea\u5b9a\u4e49\u5bf9\u8c61\u4e0a\u7684\u5b57\u6bb5\u7684\u8868\u8fbe\u5f0f\u3002 \u5168\u5c40\u53d8\u91cf\u548c\u51fd\u6570\u4e5f\u53ef\u7528\uff0c\u5982\u4e0b\u6240\u793a \u4f8b\uff1a<\/p>\n\n\n\n
            Component.Apex.OutputText head1 = new Component.Apex.OutputText();\nhead1.expressions.value = \n    '{!IF(CONTAINS($User.FirstName, \"John\"), \"Hello John\", \"Hey, you!\")}';<\/code><\/pre>\n\n\n\n
            \u901a\u8fc7\u8868\u8fbe\u5f0f\u4f20\u5165\u503c\u4ec5\u5bf9\u652f\u6301\u503c\u7684\u5c5e\u6027\u6709\u6548\u3002 \u5728\u9152\u5e97\u5916\u4f7f\u7528\u5c06\u88ab\u89e3\u91ca \u4ece\u5b57\u9762\u4e0a\u770b\uff0c\u4e0d\u662f\u4f5c\u4e3a\u8868\u8fbe\u3002{! }<\/samp>expressions<\/samp>\u5982\u679c\u8981\u5305\u542b\u7eaf HTML\uff0c\u53ef\u4ee5\u901a\u8fc7\u5c06\u5c5e\u6027\u8bbe\u7f6e\u4e3a\uff1a<\/p>\n\n\n\n
            escape<\/samp>Component.Apex.OutputText<\/samp>false<\/samp><\/p>\n\n\n\n
            Component.Apex.OutputText head1 = new Component.Apex.OutputText();\nhead1.escape = false;\nhead1.value = '<h1>This header contains HTML<\/h1>';<\/code><\/pre>\n\n\n\n
            \u5b9a\u4e49\u5206\u9762<\/h2>\n\n\n\n
            \u4e0e\u5b9a\u4e49\u8868\u8fbe\u5f0f\u7684\u65b9\u5f0f\u7c7b\u4f3c\uff0c\u5206\u9762\u5145\u5f53\u7279\u6b8a\u5c5e\u6027 \u53ef\u7528\u4e8e\u52a8\u6001\u7ec4\u4ef6\u3002\u8fd9\u662f\u4e00\u4e2a \u4f8b\uff1a<\/p>\n\n\n\n
            Component.Apex.DataTable myTable = new Component.Apex.DataTable(var='item');\nmyTable.expressions.value = '{!items}'; \nComponent.Apex.OutputText header = \n    new Component.Apex.OutputText(value='This is My Header');\nmyTable.facets.header = header;<\/code><\/pre>\n\n\n\n
            \u6709\u5173\u5206\u9762\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u4f7f\u7528\u7ec4\u4ef6\u5206\u9762\u7684\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n\n\n\n
            \u5b9a\u4e49\u5b50\u8282\u70b9<\/h2>\n\n\n\n
            \u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u5c06\u5b50\u8282\u70b9\u6dfb\u52a0\u5230\u52a8\u6001 Visualforce \u7ec4\u4ef6 \u8be5\u7269\u4e1a\u3002\u8be5\u5c5e\u6027\u5145\u5f53\u5bf9 a \u5bf9\u8c61\u6e05\u5355\u3002childComponents<\/samp>childComponents<\/samp>Component.Apex<\/samp>\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u8bf4\u660e\u5982\u4f55\u4f7f\u7528\u5b50\u8f93\u5165\u6765\u6784\u9020 \u8282\u70b9\uff1a<\/p>\n\n\n\n
            childComponents<\/samp><apex:form><\/samp><\/p>\n\n\n\n
            public Component.Apex.PageBlock getDynamicForm() {\n    Component.Apex.PageBlock dynPageBlock = new Component.Apex.PageBlock();\n\n    \/\/ Create an input field for Account Name\n    Component.Apex.InputField theNameField = new Component.Apex.InputField();\n    theNameField.expressions.value = '{!Account.Name}';\n    theNameField.id = 'theName';\n    Component.Apex.OutputLabel theNameLabel = new Component.Apex.OutputLabel();\n    theNameLabel.value = 'Rename Account?';\n    theNameLabel.for = 'theName';\n    \n    \/\/ Create an input field for Account Number\n    Component.Apex.InputField theAccountNumberField = new Component.Apex.InputField();\n    theAccountNumberField.expressions.value = '{!Account.AccountNumber}';\n    theAccountNumberField.id = 'theAccountNumber';\n    Component.Apex.OutputLabel theAccountNumberLabel = new Component.Apex.OutputLabel();\n    theAccountNumberLabel.value = 'Change Account #?';\n    theAccountNumberLabel.for = 'theAccountNumber';\n    \n    \/\/ Create a button to submit the form\n    Component.Apex.CommandButton saveButton = new Component.Apex.CommandButton();\n    saveButton.value = 'Save';\n    saveButton.expressions.action = '{!Save}';\n    \n    \/\/ Assemble the form components\n    dynPageBlock.childComponents.add(theNameLabel);\n    dynPageBlock.childComponents.add(theNameField);\n    dynPageBlock.childComponents.add(theAccountNumberLabel);\n    dynPageBlock.childComponents.add(theAccountNumberField);\n    dynPageBlock.childComponents.add(saveButton);\n    \n    return dynPageBlock;\n}<\/code><\/pre>\n\n\n\n
            \u5982\u679c\u6807\u8bb0\u5b9a\u4e49\u4e3a\uff1a<\/p>\n\n\n\n
            <apex:form>\n    <apex:dynamicComponent componentValue=\"{!dynamicForm}\"\/>\n<\/apex:form><\/code><\/pre>\n\n\n\n
            \u7136\u540e \u60a8\u7684\u6807\u8bb0\u7b49\u6548\u4e8e\u4ee5\u4e0b\u9759\u6001 \u6807\u8bb0\uff1a<\/p>\n\n\n\n
            <apex:form>\n    <apex:pageBlock>\n        <apex:outputLabel for=\"theName\"\/>\n        <apex:inputField value=\"{!Account.Name}\" id=\"theName\"\/>\n        <apex:outputLabel for=\"theAccountNumber\"\/>\n        <apex:inputField value=\"{!Account.AccountNumber}\" id=\"theAccountNumber\"\/>\n        <apex:commandButton value=\"Save\" action=\"{!save}\"\/>\n    <\/apex:pageBlock>\n<\/apex:form><\/code><\/pre>\n\n\n\n
            \u901a\u77e5 \u7b49\u6548\u9759\u6001\u6807\u8bb0\u4e2d\u5143\u7d20\u7684\u987a\u5e8f\u662f \u52a8\u6001\u7ec4\u4ef6\u88ab\u6dfb\u52a0\u5230 \uff0c\u800c\u4e0d\u662f\u5b83\u4eec\u5728 Apex \u4e2d\u58f0\u660e\u7684\u987a\u5e8f \u65b9\u6cd5\u7684\u4ee3\u7801\u3002<\/p>\n\n\n\n
            childComponents<\/samp>getDynamicForm<\/samp><\/p>\n\n\n\n
            \u5ef6\u8fdf\u521b\u5efa\u52a8\u6001\u7ec4\u4ef6<\/h1>\n\n\n\n
            \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5b9a\u4e49\u52a8\u6001\u7ec4\u4ef6\u7684 Apex \u65b9\u6cd5\u5728\u9875\u9762\u52a0\u8f7d\u65f6\u6267\u884c \u65f6\u95f4\uff0c\u5728\u8fd0\u884c\u4e3a\u9875\u9762\u5b9a\u4e49\u7684\u4efb\u4f55\u64cd\u4f5c\u65b9\u6cd5\u4e4b\u524d\u3002\u5c06\u52a8\u6001\u7ec4\u4ef6\u7684\u5c5e\u6027\u8bbe\u7f6e\u4e3a\u7b49\u5f85\u9875\u9762\u64cd\u4f5c\u5b8c\u6210 \u5728\u521b\u5efa\u52a8\u6001\u7ec4\u4ef6\u7684\u65b9\u6cd5\u8fd0\u884c\u4e4b\u524d\u3002\u8fd9\u4f7f\u60a8\u80fd\u591f\u8bbe\u8ba1 \u52a8\u6001\u7ec4\u4ef6\uff0c\u6839\u636e\u9875\u9762\u7684\u7ed3\u679c\u800c\u53d8\u5316\uff0c\u4f8b\u5982\uff0c\u9875\u9762 \u521d\u59cb\u5316\u64cd\u4f5c\u6216\u6807\u6ce8\u3002<\/p>\n\n\n\n
            invokeAfterAction<\/samp>true<\/samp>\u4e0b\u9762\u662f\u4e00\u4e2a\u5177\u6709\u5355\u4e2a\u52a8\u6001\u7ec4\u4ef6\u7684\u9875\u9762\uff0c\u8be5\u7ec4\u4ef6\u662f\u5728 \u9875\u9762\u7684 action \u65b9\u6cd5 \uff0c \u662f \u5b8c\u6210\u3002<\/p>\n\n\n\n
            pageActionUpdateMessage<\/samp><\/p>\n\n\n\n
            <apex:page controller=\"DeferredDynamicComponentController\" \n    action=\"{!pageActionUpdateMessage}\" showHeader=\"false\">\n    \n    <apex:dynamicComponent componentValue=\"{!dynamicComp}\" invokeAfterAction=\"true\"\/>\n  \n<\/apex:page><\/code><\/pre>\n\n\n\n
            \u4e0b\u9762\u662f\u63d0\u4f9b\u52a8\u6001\u7ec4\u4ef6\u5b9a\u4e49\u7684\u5173\u8054\u63a7\u5236\u5668\uff1a \u5e76\u8bf4\u660e\u4e86\u5c5e\u6027\u7684\u6548\u679c\u3002<\/p>\n\n\n\n
            invokeAfterAction<\/samp><\/p>\n\n\n\n
            public class DeferredDynamicComponentController {\n\n    private String msgText { get; set; }\n\n    public DeferredDynamicComponentController() {  \n        this.msgText = 'The controller is constructed.';\n    }\n    \n    public Component.Apex.OutputPanel getDynamicComp() {\n\n        \/\/ This is the component to return\n        Component.Apex.OutputPanel dynOutPanel= new Component.Apex.OutputPanel();\n        dynOutPanel.layout = 'block';\n        \n        \/\/ Child component to hold the message text\n        Component.Apex.OutputText msgOutput = new Component.Apex.OutputText();\n        msgOutput.value = this.msgText;\n        dynOutPanel.childComponents.add(msgOutput);\n        \n        return dynOutPanel;\n    }\n    \n    public Object pageActionUpdateMessage() {\n        this.msgText= 'The page action method has been run.';\n        return null;\n    }\n}<\/code><\/pre>\n\n\n\n
            \u8ddf \u52a8\u6001\u7ec4\u4ef6\u7684\u9ed8\u8ba4\u884c\u4e3a\uff0c\u5728\u6784\u9020\u51fd\u6570\u4e2d\u8bbe\u7f6e\u7684\u503c\u7531 \u52a8\u6001\u7ec4\u4ef6\u3002\u5728\u52a8\u6001\u7ec4\u4ef6\u4e0a\u8fdb\u884c\u8bbe\u7f6e\u4f1a\u66f4\u6539\u8be5\u884c\u4e3a\u3002 \u9875\u9762\u7b49\u5f85 \u5b8c\u6210\uff0c\u7136\u540e<\/em>\u521b\u5efa\u52a8\u6001\u7ec4\u4ef6\uff0c\u56e0\u6b64\u7ec4\u4ef6 \u663e\u793a\u5df2\u8bbe\u7f6e\u7684\u503c \u5728 Action \u65b9\u6cd5\u4e2d \u76f8\u53cd\u3002<\/p>\n\n\n\n
            msgText<\/samp>invokeAfterAction=”true”<\/samp>pageActionUpdateMethod<\/samp>msgText<\/samp>pageActionUpdateMessage<\/samp><\/p>\n\n\n\n
            \u6ce8\u610f<\/p>\n\n\n\n
            \u8be5\u5c5e\u6027\u53ef\u7528 \u5bf9\u4e8e\u8bbe\u7f6e\u4e3a API \u7248\u672c 31.0 \u6216\u66f4\u9ad8\u7248\u672c\u7684\u9875\u9762\u4e2d\u7684\u52a8\u6001\u7ec4\u4ef6\u3002invokeAfterAction<\/samp><\/p>\n\n\n\n
            \u5ef6\u8fdf\u521b\u5efa\u52a8\u6001\u7ec4\u4ef6\u548c\u5176\u4ed6\u64cd\u4f5c<\/h2>\n\n\n\n
            invokeAfterAction=”true”<\/samp>\u5f71\u54cd\u52a8\u6001 \u7ec4\u4ef6\u5728\u9875\u9762\u52a0\u8f7d\u65f6\u7acb\u5373\u751f\u6548\uff0c\u56e0\u4e3a\u90a3\u662f\u9875\u9762\u64cd\u4f5c\u7684\u65f6\u5019 \u8dd1\u3002\u8bbe\u7f6e\u5c06\u98a0\u5012\u7ec4\u4ef6\u521b\u5efa\u987a\u5e8f\u548c\u9875\u9762\u4e0a\u7684\u4efb\u4f55<\/em>\u64cd\u4f5c\u65b9\u6cd5\u3002 \u4e5f\u5c31\u662f\u8bf4\uff0c\u4ee5\u4e0b\u6240\u6709\u7ec4\u4ef6\u4e0a\u7684\u65b9\u6cd5\u7684\u6267\u884c\u987a\u5e8f\u90fd\u5df2\u66f4\u6539\u3002<\/p>\n\n\n\n
            invokeAfterAction=”true”<\/samp>action<\/samp><\/p>\n\n\n\n
              \n
            • <apex:actionFunction><\/samp><\/li>\n\n\n\n
            • <apex:actionPoller><\/samp><\/li>\n\n\n\n
            • <apex:actionSupport><\/samp><\/li>\n\n\n\n
            • <apex:commandButton><\/samp><\/li>\n\n\n\n
            • <apex:commandLink><\/samp><\/li>\n\n\n\n
            • <apex:page><\/samp><\/li>\n<\/ul>\n\n\n\n
              When \u8bbe\u7f6e\u4e3a \u52a8\u6001\u7ec4\u4ef6\uff0c\u6267\u884c\u987a\u5e8f\u5982\u4e0b\u3002\u8fd9\u662f\u9ed8\u8ba4\u8bbe\u7f6e \u52a8\u6001\u7ec4\u4ef6\u7684\u884c\u4e3a\u3002<\/p>\n\n\n\n
              invokeAfterAction=”false”<\/samp><\/p>\n\n\n\n
                \n
              1. \u8c03\u7528\u52a8\u6001\u7ec4\u4ef6\u7684\u521b\u5efa\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u6784\u9020 \u5143\u4ef6\u3002<\/li>\n\n\n\n
              2. \u8c03\u7528 action \u65b9\u6cd5\u3002<\/li>\n\n\n\n
              3. \u91cd\u65b0\u5448\u73b0\u9875\u9762\u3002<\/li>\n<\/ol>\n\n\n\n
                When \u8bbe\u7f6e\u4e3a \u52a8\u6001\u7ec4\u4ef6\uff0c\u6267\u884c\u987a\u5e8f\u5982\u4e0b\u3002<\/p>\n\n\n\n
                invokeAfterAction=”true”<\/samp><\/p>\n\n\n\n
                  \n
                1. \u8c03\u7528 action \u65b9\u6cd5\u3002<\/li>\n\n\n\n
                2. \u8c03\u7528\u52a8\u6001\u7ec4\u4ef6\u7684\u521b\u5efa\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u6784\u9020 \u5143\u4ef6\u3002<\/li>\n\n\n\n
                3. \u91cd\u65b0\u5448\u73b0\u9875\u9762\u3002<\/li>\n<\/ol>\n\n\n\n
                  \u6ce8\u610f<\/p>\n\n\n\n
                  \u5728\u7b2c\u4e8c\u79cd\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u64cd\u4f5c\u65b9\u6cd5\u8fd4\u56de PageReference\uff0c\u5219 Visualforce \u5c06\u91cd\u5b9a\u5411 \u5bf9\u65b0\u9875\u9762\u7684\u8bf7\u6c42\uff0c\u4ee5\u53ca\u52a8\u6001\u7ec4\u4ef6\u7684\u521b\u5efa\u65b9\u6cd5 \u4e0d\u4f1a\u8fd0\u884c\u3002\u4e3a\u4e86\u907f\u514d\u53ef\u80fd\u7684\u6267\u884c\u987a\u5e8f\u9519\u8bef\uff0c\u8fd9\u662f\u4e00\u4e2a \u521b\u5efa\u52a8\u6001\u7ec4\u4ef6\u7684\u65b9\u6cd5\u6ca1\u6709\u4fa7\u7684\u6700\u4f73\u5b9e\u8df5 \u5f71\u54cd\u3002<\/p>\n\n\n\n
                  \u4f7f\u7528\u76f8\u5173\u5217\u8868\u7684\u793a\u4f8b<\/h1>\n\n\n\n
                  \u52a8\u6001 Visualforce \u7ec4\u4ef6\u5305\u62ec \u5f53\u60a8\u4e0d\u77e5\u9053\u8981\u5f15\u7528\u7684\u5bf9\u8c61<\/em>\u7c7b\u578b\u65f6\uff0c\u6700\u597d\u4f7f\u7528 \u4e0e\u52a8\u6001 Visualforce \u7ed1\u5b9a\u76f8\u53cd\uff0c \u5f53\u60a8\u4e0d\u77e5\u9053\u8981\u8bbf\u95ee\u7684\u5b57\u6bb5<\/em>\u65f6\uff0c\u6700\u597d\u4f7f\u7528\u3002<\/p>\n\n\n\n
                  \u4ee5\u4e0b\u4f7f\u7528\u52a8\u6001 Visualforce \u7684\u573a\u666f\u6784\u5efa\u4e86\u4e00\u4e2a\u7b80\u5355\u7684 \u5177\u6709\u8981\u8bbf\u95ee\u7684\u4e00\u7ec4\u5df2\u77e5\u5b57\u6bb5\u7684\u53ef\u91cd\u7528\u9875\u9762\u3002\u9875\u9762\u53ca\u5176\u81ea\u5b9a\u4e49 \u5bf9\u8c61\u88ab\u653e\u7f6e\u5728\u4e00\u4e2a\u975e\u6258\u7ba1\u5305\u4e2d\uff0c\u5e76\u5206\u5e03\u5728\u540c\u4e00\u4e2a\u5305\u4e2d \u7ec4\u7ec7\u3002\u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a Classroom \u7684\u81ea\u5b9a\u4e49\u5bf9\u8c61\u3002\u521b\u5efa\u4e24\u4e2a\u5bf9\u8c61 – \u4e00\u4e2a\u547d\u540d\uff0c\u53e6\u4e00\u4e2a\u547d\u540d\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n
                  Science 101<\/kbd>Math 201<\/kbd><\/p>\n\n\n\n
                  \"\"<\/figure>\n\n\n\n
                  \u63a5\u4e0b\u6765\uff0c\u518d\u521b\u5efa\u4e24\u4e2a\u81ea\u5b9a\u4e49\u5bf9\u8c61\uff0c\u5206\u522b\u79f0\u4e3a Student \u548c Teacher\u3002\u5b8c\u6210\u540e \u521b\u5efa\u6bcf\u4e2a\u5bf9\u8c61\uff1a<\/p>\n\n\n\n
                    \n
                  1. \u5355\u51fb\u201c\u81ea\u5b9a\u4e49\u5b57\u6bb5\u201d\u4e0b\u7684\u201c\u65b0\u5efa<\/strong>\u201d& \u5173\u7cfb<\/strong>\u3002<\/li>\n\n\n\n
                  2. \u9009\u62e9\u201c\u4e3b\u4ece\u5173\u7cfb\u201d\uff0c\u7136\u540e\u5355\u51fb\u201c\u4e0b\u4e00\u6b65<\/strong>\u201d\u3002<\/li>\n\n\n\n
                  3. \u4ece\u4e0b\u62c9\u5217\u8868\u4e2d\u9009\u62e9\u201c\u8bfe\u5802<\/strong>\u201d\uff0c\u7136\u540e\u5355\u51fb\u201c\u4e0b\u4e00\u6b65<\/strong>\u201d\u3002<\/li>\n\n\n\n
                  4. \u7ee7\u7eed\u5355\u51fb\u201c\u4e0b\u4e00\u6b65<\/strong>\u201d\uff0c\u4fdd\u7559\u6240\u6709\u9ed8\u8ba4\u503c \u5b8c\u6574\u3002<\/li>\n<\/ol>\n\n\n\n
                    \u521b\u5efa\u4ee5\u4e0b\u5bf9\u8c61\u548c\u5339\u914d\u5173\u7cfb\uff1a<\/p>\n\n\n\n
                      \n
                    • \u4e00\u4e2a\u540d\u4e3a \u7684\u65b0\u5b66\u751f\u548c\u65b0\u8001\u5e08 named \uff0c\u4e24\u8005\u90fd\u5206\u914d\u7ed9 \u3002Johnny Walker<\/kbd>Mister Pibb<\/kbd>Science 101<\/kbd><\/li>\n\n\n\n
                    • \u53e6\u4e00\u4e2a\u540d\u53eb \u7684\u65b0\u5b66\u751f\u548c\u4e00\u4f4d\u65b0\u8001\u5e08 named \uff0c\u4e24\u8005\u90fd\u5206\u914d\u7ed9 \u3002Boont Amber<\/kbd>Doctor Pepper<\/kbd>Math 201<\/kbd><\/li>\n<\/ul>\n\n\n\n
                      \u73b0\u5728\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 Apex \u9875\u9762\uff0c\u79f0\u4e3a\u5e76\u7c98\u8d34 \u4ee5\u4e0b \u6cd5\u5178\uff1a<\/p>\n\n\n\n
                      DynamicClassroomList<\/kbd><\/p>\n\n\n\n
                      public class DynamicClassroomList {\n\n    private ApexPages.StandardSetController controller;\n    private PageReference savePage;\n    private Set<String> unSelectedNames;\n    private Set<String> selectedNames;\n    \n    public List<String> selected { get; set; }\n    public List<String> unselected { get; set; }\n    public String objId { get; set; }\n    public List<String> displayObjs {\n        get; private set;\n    }\n    \n    boolean idIsSet = false;\n    \n    public DynamicClassroomList() {\n        init();\n    }\n\n    public DynamicClassroomList(ApexPages.StandardSetController con) {\n        this.controller = con;\n        init();\n    }\n\n    private void init() {\n        savePage = null;\n        unSelectedNames = new Set<String>();\n        selectedNames = new Set<String>();\n         \n        if (idIsSet) {\n            ApexPages.CurrentPage().getParameters().put('id', objId);\n            idIsSet = false;\n        }\n    }\n    \n    public PageReference show() {\n        savePage = Page.dynVFClassroom;\n        savePage.getParameters().put('id', objId);\n        return savePage;\n    }\n\n    public List<SelectOption> displayObjsList { \n        get {\n            List<SelectOption> options = new List<SelectOption>();\n            List<Classroom__c> classrooms = [SELECT id, name FROM Classroom__c];\n            \n            for (Classroom__c c: classrooms) {\n                options.add(new SelectOption(c.id, c.name)); \n            }\n            \n            return options;\n       }\n    }\n    \n    public PageReference customize() {\n        savePage = ApexPages.CurrentPage();\n        savePage.getParameters().put('id', objId);\n        \n        return Page.dynamicclassroomlist;\n    }\n\n    \/\/ The methods below are for constructing the select list  \n\n    public List<SelectOption> selectedOptions { \n        get {\n            List<String> sorted = new List<String>(selectedNames);\n            sorted.sort();\n            List<SelectOption> options = new List<SelectOption>();\n            for (String s: sorted) {\n                options.add(new SelectOption(s, s));\n            }\n            return options;\n        }\n    }\n    \n    public List<SelectOption> unSelectedOptions { \n        get {\n            Schema.DescribeSObjectResult R = Classroom__c.SObjectType.getDescribe();\n            List<Schema.ChildRelationship> C = R.getChildRelationships(); \n            List<SelectOption> options = new List<SelectOption>();\n            \n            for (Schema.ChildRelationship cr: C) {\n                String relName = cr.getRelationshipName();\n                \/\/ We're only interested in custom relationships\n                if (relName != null && relName.contains('__r')) {\n                    options.add(new SelectOption(relName, relName));\n                }\n            }\n            return options;\n        }\n    }\n\n\n    public void doSelect() {\n        for (String s: selected) {\n            selectedNames.add(s);\n            unselectedNames.remove(s);\n        }\n    }\n\n    public void doUnSelect() {\n        for (String s: unselected) {\n            unSelectedNames.add(s);\n            selectedNames.remove(s);\n        }\n    }\n\n    public Component.Apex.OutputPanel getClassroomRelatedLists() {\n        Component.Apex.OutputPanel dynOutPanel= new Component.Apex.OutputPanel();\n        \n        for(String id: selectedNames) {\n           Component.Apex.RelatedList dynRelList = new Component.Apex.RelatedList();\n           dynRelList.list = id;\n           dynOutPanel.childComponents.add(dynRelList);\n        }\n        \n        return dynOutPanel;\n    }\n}<\/code><\/pre>\n\n\n\n
                      \u540e \u5c1d\u8bd5\u4fdd\u5b58\u65f6\uff0c\u7cfb\u7edf\u53ef\u80fd\u4f1a\u63d0\u793a\u60a8\u7f3a\u5c11 Visualforce \u9875\u9762\u3002\u70b9\u51fb\u94fe\u63a5 \u521b\u5efa\u9875\u9762\uff1a\u63a5\u4e0b\u6765\u7684\u4ee3\u7801\u5757\u5c06\u586b\u5145\u8be5\u9875\u9762\u3002\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a Visualforce \u7684\u9875\u9762\uff0c\u5e76\u7c98\u8d34\u4ee5\u4e0b\u5185\u5bb9 \u6cd5\u5178\uff1a<\/p>\n\n\n\n
                      dynVFClassroom<\/kbd><\/p>\n\n\n\n
                      <apex:page standardController=\"Classroom__c\" recordSetVar=\"classlist\"\n    extensions=\"DynamicClassroomList\">\n    \n    <apex:dynamicComponent componentValue=\"{!ClassroomRelatedLists}\"\/>\n    \n    <apex:form>\n        \n        <apex:pageBlock title=\"Classrooms Available\" mode=\"edit\">\n            <apex:pageMessages\/>\n            <apex:selectRadio value=\"{!objId}\">\n                <apex:selectOptions value=\"{!displayObjsList}\"\/>\n            <\/apex:selectRadio>\n        <\/apex:pageBlock>\n\n        <apex:commandButton value=\"Select Related Items\" action=\"{!Customize}\"\/>\n    <\/apex:form>\n    \n<\/apex:page><\/code><\/pre>\n\n\n\n
                      \u6700\u540e\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a .\u5982\u679c \u60a8\u4ece\u4e00\u5f00\u59cb\u5c31\u4e00\u76f4\u5728\u5b66\u4e60\u672c\u6559\u7a0b\uff0c\u60a8\u5e94\u8be5\u5df2\u7ecf \u5728\u6784\u9020\u63a7\u5236\u5668\u6269\u5c55\u65f6\u521b\u5efa\u4e86\u6b64\u9875\u9762\u3002\u7c98\u8d34\u4ee5\u4e0b\u5185\u5bb9 \u6cd5\u5178\uff1a<\/p>\n\n\n\n
                      DynamicClassroomList<\/kbd><\/p>\n\n\n\n
                      <apex:page standardController=\"Classroom__c\" recordsetvar=\"listPageMarker\" \n    extensions=\"DynamicClassroomList\">\n    <apex:messages\/><br\/>\n    <apex:form>\n        <apex:pageBlock title=\"Select Relationships to Display\" id=\"selectionBlock\">\n            <apex:panelGrid columns=\"3\">\n                <apex:selectList id=\"unselected_list\" required=\"false\"\n                    value=\"{!selected}\" multiselect=\"true\" size=\"20\" \n                    style=\"width:250px\">\n                    <apex:selectOptions value=\"{!unSelectedOptions}\"\/>\n                <\/apex:selectList>\n                <apex:panelGroup>\n                    <apex:commandButton value=\">>\" action=\"{!DoSelect}\" \n                        reRender=\"selectionBlock\"\/>\n                    <br\/>\n                    <apex:commandButton value=\"<<\" action=\"{!DoUnselect}\" \n                        reRender=\"selectionBlock\"\/>\n                <\/apex:panelGroup>\n                <apex:selectList id=\"selected_list\" required=\"false\"\n                    value=\"{!unselected}\" multiselect=\"true\" size=\"20\" \n                    style=\"width:250px\">\n                    <apex:selectOptions value=\"{!selectedOptions}\"\/>\n                <\/apex:selectList>\n            <\/apex:panelGrid>\n        <\/apex:pageBlock>\n        <br\/>\n        <apex:commandButton value=\"Show Related Lists\" action=\"{!show}\"\/>\n    <\/apex:form>\n<\/apex:page><\/code><\/pre>\n\n\n\n
                      \u8fd9 \u662f\u5411\u7528\u6237\u63d0\u4f9b\u9009\u62e9\u54ea\u4e2a\u5bf9\u8c61\u7684\u9009\u9879\u7684\u9875\u9762 \u8981\u663e\u793a\u7684\u5173\u7cfb\u3002\u8bf7\u6ce8\u610f\uff0c\u201cselected\u201d\u548c \u201c\u672a\u9009\u62e9\u201d\u5217\u8868\u901a\u8fc7\u52a8\u6001\u65b9\u5f0f\u586b\u5145\u3002<\/p>\n\n\n\n
                      \u7ec4\u88c5\u63a7\u5236\u5668\u6269\u5c55\u548c\u8fd9\u4e9b\u9875\u9762\u540e\uff0c\u5bfc\u822a\u5230\u7ec4\u7ec7\u4e2d\u7684 \/apex\/dynVFClassroom\u3002\u4f60\u4f1a\u770b\u5230\u4e00\u4e2a \u7c7b\u4f3c\u4e8e\u4ee5\u4e0b\u5185\u5bb9\u7684\u5e8f\u5217\uff1a<\/p>\n\n\n\n
                      \"\"<\/p>\n\n\n\n
                      \"\"<\/p>\n\n\n\n
                      \"\u201c\u8bfe\u5802\u201d\u5173\u7cfb\u9009\u62e9\u7684\u5c4f\u5e55\u622a\u56fe\"<\/p>\n","protected":false},"excerpt":{"rendered":"
                      \u52a8\u6001\u89c6\u89c9\u529b \u7ec4\u4ef6\u63d0\u4f9b\u4e86\u4e00\u79cd\u521b\u5efa Visualforce \u9875\u9762\u7684\u65b9\u6cd5\uff0c\u8be5\u9875\u9762\u6839\u636e\u5404\u79cd \u72b6\u6001\uff0c\u4f8b\u5982\u7528\u6237\u7684\u6743\u9650\u6216\u64cd\u4f5c\u3001\u7528\u6237\u6216\u7ec4\u7ec7\u9996\u9009\u9879\u3001 \u6b63\u5728\u663e\u793a\u7684\u6570\u636e\uff0c\u7b49\u7b49\u3002\u52a8\u6001 Visualforce \u7ec4\u4ef6\u4e0d\u662f\u4f7f\u7528\u6807\u51c6\u6807\u8bb0\uff0c\u800c\u662f\u5728 \u9876\u70b9\u3002\u52a8\u6001 Visualforce \u7ec4\u4ef6\u5728 Apex \u4e2d\u5b9a\u4e49\uff0c\u5982\u4e0b\u6240\u793a \u8fd9\uff1a<\/p>\n","protected":false},"author":1,"featured_media":4085,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[271],"tags":[286],"class_list":["post-4041","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-visualforce-","tag--visualforce-"],"yoast_head":"\n\u52a8\u6001 Visualforce \u7ec4\u4ef6 - 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