01 2018 档案
摘要：Demos:https://www.devexpress.com/Products/VCL/demos.xml 帮助文档:https://www.devexpress.com/Support/Documentation/download.xml?platform=vcl-dev-docs#conte
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摘要：function _Wide2Ansi(Achar: Pchar): PAnsiChar; var lv: Ansistring; begin lv := Ansistring(string(Achar)); Result := PAnsiChar(lv); end; function _Ansi2Wide(Achar: PAnsiChar): Pchar; var lv: s...
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摘要：https://stackoverflow.com/questions/24025646/delphi-http-post-json HTTP1.Request.ContentEncodingshould beHTTP1.Request.CharSetinstead. UTF-8 is a charset encoding, not a content encoding. And th...
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摘要：class function TdbDocImg.ConvertPICintoJPG(cPic: TPicture; pWidth, pHeight: Integer): TJpegImage; var tBMP: TBitmap; begin Result := TJpegImage.Create; // if (pWidth > 0) or (pHeight > 0) t...
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摘要：https://stackoverflow.com/questions/1277578/showing-cell-content-on-hint-in-devexpress-grid procedure TForm1.cxGrid1TableView1Column3GetCellHint( Send
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摘要：查询分析器是sql客户端，它可以识别go用来分批提交，但go不是sql语句，sql服务器不能识别所以不能用在程序中。 启用SQL自动备份 function get_sql_ver(): Integer; //判断当前SqlServer版本 var AQ: TADOQuery; ver: string
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摘要：Properties.Items添加下拉列 States设置和读取勾选
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摘要：给现在字段设置默认值 Sql server添加约束 ALTER TABLE book ADD DEFAULT '' FOR book_vcgjissn Access直接修改 alter table book alter book_vcgjissn varchar(30) default ''
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摘要：CxViewColumn 1.OnGetDisplayText修改Atext 2.设置property为label或者其他 导出到Excel时才会导出Atext的值
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