Question

我编写了一个代码来将gridview提取到Excel。除了gridview中的一行外，一切正常。当我将gridview导出到excel时，最后一行不包含在excel文件中。当我扫描我的整个代码时，我发现了一个创建问题的代码。这是代码：

protected void OnDataBound(object sender, EventArgs e)
{
GridViewRow row = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Normal);
TableHeaderCell cell = new TableHeaderCell();
cell.Text = "A";
cell.ColumnSpan = 9;
row.Controls.Add(cell);
gv.HeaderRow.Parent.Controls.AddAt(0, row);
}

此代码用于向合并单元格的gridview添加新标头。删除此代码后，一切正常。但我需要那些代码。

导出到Excel代码：

Response.Clear();
            Response.AddHeader("content-disposition", "attachment;filename=Rept" + DateTime.Now.ToString("yyyy_MM_ddThh_mm_ss_") + ".xls");
            Response.Charset = "";
            Response.ContentType = "application/vnd.xls";
            System.IO.StringWriter stringWrite = new System.IO.StringWriter();
            System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);

            System.Web.UI.HtmlControls.HtmlForm form = new System.Web.UI.HtmlControls.HtmlForm();
            Controls.Add(form);
            form.Controls.Add(gvpanel);
            form.RenderControl(htmlWrite);

            Response.Write(stringWrite.ToString());
            Response.End();

如何解决这个问题？

Answer 1

我无法在任何地方找到解决方案，这使我能够提供此解决方案。当您创建标题行＆amp;你也需要导出到excel，下面的代码解决了错过最后一行的问题。

使用RowCreated事件创建动态标题行。

    protected void Grid_RowCreated(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.Header)
        {
            GridViewRow HeaderRow = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Insert);
            TableCell HeaderCell1 = new TableCell();

            HeaderCell1.Text = "Solved your Issue";
            HeaderCell1.ColumnSpan = 10;
            HeaderRow.Cells.Add(HeaderCell1);
            Grid.Controls[0].Controls.Add(HeaderRow);
        }
    }

现在您可以调用ExportToExcel方法：

      private void ExportToExcel(GridView gv, string exportfilename)
    {
        string filename = exportfilename + ".xls";

        System.IO.StringWriter tw = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw);

        gv.RenderControl(hw);
        //Write the HTML back to the browser.
        Response.ContentType = "application/vnd.ms-excel";
        Response.AppendHeader("Content-Disposition", "attachment; filename=" + filename + "");
        this.EnableViewState = false;
        Response.Write(tw.ToString());
        Response.Flush();
        Response.End();
    }

Answer 2

您可以使用Excel电子表格作为GridView的数据源，并像其他任何数据库一样连接到它：

How To Query and Display Excel Data by Using ASP.NET, ADO.NET, and Visual Basic .NET

Gridview没有获得Excel文件中的最后一行

2 个答案: