{"id":1226,"date":"2010-07-27T18:02:00","date_gmt":"2010-07-27T10:02:00","guid":{"rendered":""},"modified":"2013-11-17T16:40:17","modified_gmt":"2013-11-17T08:40:17","slug":"delphi%e4%b8%ad%e5%ae%9e%e7%8e%b0%e4%ba%8b%e4%bb%b6%e6%b3%a8%e5%85%a5","status":"publish","type":"post","link":"https:\/\/kyle.ai\/blog\/1226.html","title":{"rendered":"Delphi\u4e2d\u5b9e\u73b0\u4e8b\u4ef6\u201c\u6ce8\u5165\u201d"},"content":{"rendered":"<p>C#\u4e2d\uff0c\u4e8b\u4ef6\u662f\u4ee5\u59d4\u6258\u7684\u5f62\u5f0f\u51fa\u73b0\u7684\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528+=\u64cd\u4f5c\u7b26\u6765\u5b9e\u73b0\u4e00\u4e2a\u7ec4\u4ef6\u4e2d\u540c\u4e00\u4e8b\u4ef6\u7684\u4e32\u8054\u3002\u4f46\u662f\uff0c\u5728Delphi\u4e2d\uff0c\u4e8b\u4ef6\u662f\u4ee5procedure of Object\u7684\u5f62\u5f0f\u51fa\u73b0\u7684\uff0c\u6ca1\u6709+=\u64cd\u4f5c\u7b26\u7684\u652f\u6301\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e00\u4e2a\u7ec4\u4ef6\u7684\u4e8b\u4ef6\u53ea\u80fd\u6307\u5411\u4e00\u4e2a\u51fd\u6570\u5730\u5740\uff08C#\u4e2d\u7684\u59d4\u6258\u4f7f\u7528\u4e86\u6307\u9488\u5217\u8868\u6765\u4fdd\u5b58\u59d4\u6258\uff0c\u56e0\u6b64\u53ef\u4ee5\u5b9e\u73b0\u591a\u4e2a\u4e8b\u4ef6\u7684\u6302\u63a5\uff09\u3002\u90a3\u4e48\uff0c\u6709\u6ca1\u6709\u4e00\u4e2a\u53d8\u901a\u7684\u65b9\u6cd5\u6765\u95f4\u63a5\u5b9e\u73b0\u4e8b\u4ef6\u7684\u968f\u610f\u201c\u6ce8\u5165\u201d\uff08\u5373\u4e0d\u5f71\u54cd\u539f\u6709\u4e8b\u4ef6\uff0c\u628a\u81ea\u5df1\u7684\u591a\u4e2a\u4e8b\u4ef6\u63d2\u5165\u5230\u4e8b\u4ef6\u6267\u884c\u961f\u5217\uff0c\u6216\u8005\u4e00\u6b21\u63d2\u5165\u5230\u591a\u4e2a\u4e8b\u4ef6\u4e2d\uff09\u5462\uff1f\u7b54\u6848\u662f\u80af\u5b9a\u7684\u3002\u597d\uff0c\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u3002<\/p>\n<p>\u6240\u8c13\u4e8b\u4ef6\uff0c\u5b9e\u8d28\u662f\u4e00\u4e2a\u5b9e\u73b0\u5b9a\u4e49\u4e86\u5f62\u5f0f\u7684\u51fd\u6570\u6307\u9488\uff0c\u90a3\u4e48\u65e2\u7136\u662f\u6307\u9488\uff0c\u5c31\u53ef\u4ee5\u7528\u5730\u5740\u6765\u8868\u793a\u3002<\/p>\n<p>\u6bd4\u5982\uff0c\u6709\u4e00\u4e2a\u6309\u94ae\uff0c\u6211\u4eec\u60f3\u5728\u5b83\u7684OnClick\u4e8b\u4ef6\u6ce8\u5165\u6211\u4eec\u7684\u4ee3\u7801\uff0c\u90a3\u4e48\u53ef\u4ee5\u8fd9\u6837\uff1a<\/p>\n<pre class=\"brush: delphi; title: ; notranslate\" title=\"\">\r\n\/\/\u8fd9\u91cc\u662f\u5168\u5c40\u53d8\u91cf\r\nvar\r\n  temp: TNotifyEvent;\r\n\r\n\/\/\u4e0b\u9762\u662f\u5b9e\u73b0\r\nbegin\r\n  temp := Button.OnClick; \/\/\u628a\u539f\u6709\u4e8b\u4ef6\u4fdd\u7559\u5230\u4e34\u65f6\u7684\u53d8\u91cf\r\n  Button.OnClick := myClick; \/\/\u7528\u6211\u4eec\u7684\u4e8b\u4ef6\u66ff\u6362\u4e4b\r\nend;\r\n\r\n\/\/\u5728myClick\u4e8b\u4ef6\u51fd\u6570\u4e2d\u5199\u5165\r\nif Assigned(temp) then\r\n  temp(Sender);\r\n<\/pre>\n<p>\u8fd9\u6837\uff0c\u6211\u4eec\u6210\u529f\u7684\u4f7f\u7528\u81ea\u5df1\u7684\u4e8b\u4ef6\u201c\u6ce8\u5165\u201d\u4e86\u539f\u6709\u4e8b\u4ef6\u3002<\/p>\n<p>\u8fd9\u662f\u5728\u7ec4\u4ef6\u6216\u8005\u4e8b\u4ef6\u4e2a\u6570\u660e\u786e\u7684\u60c5\u51b5\u4e0b\u5b9e\u73b0\u7684\uff0c\u90a3\u4e48\u7ec4\u4ef6\u7684\u4e2a\u6570\u4e0d\u660e\u786e\u7684\u8bdd\u6211\u4eec\u8be5\u600e\u4e48\u529e\u5462\uff1f\u5176\u5b9e\uff0c\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u4f7f\u7528\u6307\u9488\u6570\u7ec4\/\u5217\u8868\u6765\u5b9e\u73b0\u4e8b\u4ef6\u7684\u201c\u6ce8\u5165\u201d\uff0c\u53ea\u662f\u5176\u4e2d\u4f7f\u7528\u4e86\u4e00\u4e2a\u5c0f\u5c0f\u7684\u8f6c\u6362\u6765\u4fdd\u8bc1\u7c7b\u578b\u7684\u4e00\u81f4\u3002<\/p>\n<p>\u6bd4\u5982\uff0c\u6709\u4e00\u4e2aPageControl\u63a7\u4ef6\uff0c\u6211\u4eec\u9700\u8981\u6ce8\u5165\u5230\u6bcf\u4e00\u4e2aTabSheet\u7684OnShow\u4e2d\uff0c\u800c\u5bf9\u4e8eTabSheet\u7684\u4e2a\u6570\u6211\u4eec\u4e0d\u660e\u786e\uff0c\u90a3\u4e48\u53ef\u4ee5\u8fd9\u6837\uff1a<\/p>\n<pre class=\"brush: delphi; title: ; notranslate\" title=\"\">\r\n\/\/\u5b9a\u4e49\u4e24\u4e2a\u5217\u8868\r\nvar\r\n    OnTabSheetShowCodeList: TList;  \/\/\u7528\u4e8e\u4fdd\u5b58TMethod.Code\u7684\u5185\u5bb9\r\n    OnTabSheetShowDataList: TList;  \/\/\u7528\u4e8e\u4fdd\u5b58TMethod.Data\u7684\u5185\u5bb9\r\n\r\n\/\/\u5728\u6ce8\u5165\u4ee3\u7801\u5b9e\u73b0\u4e2d\r\nvar\r\n  os: TMethod;\r\nbegin\r\n  for i := 0 to PageControl.PageCount -1 do\r\n  begin\r\n    os := TMethod(PageControl.Pages&#x5B;i].OnShow); \/\/\u83b7\u53d6\u6307\u5b9aTabSheet\u7684OnShow\u4e8b\u4ef6\uff0c\u5e76\u5c06\u5176\u8f6c\u6362\u6210TMethod\u7c7b\u578b\uff0c\u8fd9\u91cc\u662f\u5173\u952e\r\n    OnTabSheetShowCodeList.Add(os.Code); \/\/\u4fdd\u5b58\u8be5\u51fd\u6570\u6307\u9488\u7684\u5730\u5740\r\n    OnTabSheetShowDataList.Add(os.Data); \/\/\u4fdd\u5b58\u8be5\u51fd\u6570\u6307\u9488\u7684\u989d\u5916\u6570\u636e\r\n    PageControl.Pages&#x5B;i].OnShow := myOnShow; \/\/\u4f7f\u7528\u6211\u4eec\u81ea\u5df1\u7684\u4e8b\u4ef6\u51fd\u6570\u6765\u66ff\u6362\u4e4b\r\n  end;\r\nend;\r\n\r\n\/\/\u90a3\u4e48\u5728myOnShow\u4e2d\r\nvar\r\n  onShow: TNotifyEvent;\r\nbegin\r\n  if (Sender &lt;&gt;nil) and(Assigned((Sender as TTabSheet).PageControl)) then\r\n  begin\r\n    TMethod(onShow).Code := (FOnTabSheetShowCodeList.Items&#x5B;(Sender as TTabSheet).pageIndex]); \/\/\u6062\u590d\u51fd\u6570\u6307\u9488\u7684\u5730\u5740\r\n    TMethod(onShow).Data := (FOnTabSheetShowDataList.Items&#x5B;(Sender as TTabSheet).pageIndex]); \/\/\u6062\u590d\u51fd\u6570\u6307\u9488\u7684\u989d\u5916\u6570\u636e\r\n    if (Assigned(onShow)) then\r\n    begin\r\n      onShow(Sender); \/\/\u8c03\u7528\u539f\u59cb\u4e8b\u4ef6\r\n    end;\r\n  end;\r\nend;\r\n<\/pre>\n<p>\u4e0a\u9762\u4ee3\u7801\u6700\u4e0d\u5bb9\u6613\u7406\u89e3\u7684\u662f TMethod(onShow).Data \u8fd9\u4e2a\u53d8\u91cf\uff0c\u7f51\u4e0a\u5f88\u591a\u4f8b\u5b50\u90fd\u5bf9\u5b83\u8d4b\u4e88\u4e86Self\uff0c\u4f46\u662f\u5728\u672c\u4f8b\u4e2d\uff0c\u8d4b\u4e88Self\u53cd\u800c\u4f1a\u5728\u8c03\u7528\u539f\u59cb\u4e8b\u4ef6\u65f6\u51fa\u9519\uff0c\u539f\u56e0\u5f88\u7b80\u5355\uff0cTMethod.Data\u662f\u5bf9\u8c61\u5b9e\u4f8b(Instance)\u7684\u9996\u5730\u5740\uff0cTMethod\u7684\u7ed3\u6784\u5b9a\u4e49\u65b9\u5f0f\u5c31\u662f\u76ee\u524dO-O\u8bed\u8a00\u5b9e\u73b0\u7684\u539f\u7406\u3002Code\u548cData\u5206\u79bb\uff0cCode\u8868\u793a\u7c7b\u7684\u9996\u5730\u5740\uff0cData\u8868\u793a\u7c7b\u7684\u5b9e\u4f8b\u7684\u9996\u5730\u5740\u3002\u65b9\u6cd5\u8868\u793a\u5bf9Code\u7684\u504f\u79fb\u91cf\uff0c\u5b57\u6bb5(Field)\u8868\u793a\u5bf9Data\u7684\u504f\u79fb\u91cf\u3002\u56e0\u6b64\uff0c\u5982\u679c\u8d4b\u4e88\u5176Self\u7684\u8bdd\uff0c\u5728\u8c03\u7528\u539f\u59cb\u4e8b\u4ef6\u65f6\u5c31\u4f1a\u51fa\u73b0\u539f\u59cb\u8c03\u7528\u8005\u6307\u9488\u4e22\u5931\uff0c\u9020\u6210\u5185\u5b58\u8bbf\u95ee\u5f02\u5e38\u3002<\/p>\n<p>\u672c\u6587\u6765\u81eaCSDN\u535a\u5ba2\uff0c\u8f6c\u8f7d\u8bf7\u6807\u660e\u51fa\u5904\uff1apics\/blog.csdn.net\/zhmnsw\/archive\/2007\/01\/22\/1490587.aspx<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C#\u4e2d\uff0c\u4e8b\u4ef6\u662f\u4ee5\u59d4\u6258\u7684\u5f62\u5f0f\u51fa\u73b0\u7684\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528+=\u64cd\u4f5c\u7b26\u6765\u5b9e\u73b0\u4e00\u4e2a\u7ec4\u4ef6\u4e2d\u540c\u4e00\u4e8b\u4ef6\u7684\u4e32\u8054\u3002\u4f46\u662f\uff0c\u5728Delphi\u4e2d [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1226","post","type-post","status-publish","format-standard","hentry","category-code_related"],"_links":{"self":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/1226","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/comments?post=1226"}],"version-history":[{"count":1,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/1226\/revisions"}],"predecessor-version":[{"id":4696,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/1226\/revisions\/4696"}],"wp:attachment":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/media?parent=1226"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/categories?post=1226"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/tags?post=1226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}