GridView导出Excel
为了完成领导交代的任务,这几天都在做数据展现,因为时间比较紧,所以也没做太复杂,使用GridView来展示数据库表。几乎没对GridView的格式做什么设定,从配置文件中加载SQL,跑出数据就直接绑定到GridView。发现了一些问题,比如GridView的自动绑定列的宽度是没法设定的,而此时GridView的表格输出是不带宽度信息的,所以导致表格列比较多的时候显示起来会挤到页面里面很难看,由于表的列数并不是固定的,所以也没法很简单的用模版列的方式做,最后只好直接将表格宽度设置成一个很大的数了事。。。
此外做了个导出Excel的功能,主要代码如下:
此外,变量style的作用是控制GridView列的样式,避免发生excel表中字符前导0被当成数字给截掉这样的问题, 通过Response.Write方法将其添加到输出流中。最后把样式添加到ID列。这一步需要在RowDataBound事件中完成:
此外做了个导出Excel的功能,主要代码如下:
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private void DumpExcel(GridView gv, string FileName)
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{//带格式导出
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string style = @"<style> .text { mso-number-format:\@; } </script>";
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Response.ClearContent();
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Response.Charset = "GB2312";
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Response.ContentEncoding = System.Text.Encoding.UTF8;
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Response.AddHeader("content-disposition", "attachment; filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
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Response.ContentType = "application/excel";
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StringWriter sw = new StringWriter();
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HtmlTextWriter htw = new HtmlTextWriter(sw);
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gv.RenderControl(htw);
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// Style is added dynamically
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Response.Write(style);
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Response.Write(sw.ToString());
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Response.End();
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}
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public override void VerifyRenderingInServerForm(Control control)
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{
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}
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上面的行17的重载函数是必须的,否则会报“GridView要在有run=server的From体内”的错。![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/None.gif)
此外,变量style的作用是控制GridView列的样式,避免发生excel表中字符前导0被当成数字给截掉这样的问题, 通过Response.Write方法将其添加到输出流中。最后把样式添加到ID列。这一步需要在RowDataBound事件中完成:
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protected void gvUsers_RowDataBound(object sender, GridViewRowEventArgs e)
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{
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if (e.Row.RowType == DataControlRowType.DataRow)
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{
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e.Row.Cells[1].Attributes.Add("class", "text");
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}
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}
![](/Images/OutliningIndicators/None.gif)
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![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
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![](/Images/OutliningIndicators/InBlock.gif)
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