C# 在gridview中添加空行的问题

我从db表中提取数据，将其绑定到gridview，然后将数据从gridview导出到excel。它很好用

但当我使用以下代码在databound事件中的gridview顶部添加一行时：

protected void gvReports_DataBound(object sender, EventArgs e)
{
    if (gvReports.Rows.Count > 0)
    {
        GridViewRow row = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Normal);

        int count = gvReports.HeaderRow.Cells.Count;
        TableHeaderCell cell = new TableHeaderCell();
        cell.BorderWidth = 0;
        cell.Text = "Commodity " + ddlCommMFArrival.SelectedItem.Text;
        cell.ColumnSpan = count - 2;
        row.Controls.Add(cell);
        row.BackColor = ColorTranslator.FromHtml("#f5fafd");
        gvReports.HeaderRow.Parent.Controls.AddAt(0, row);
    }
}

将Gridview导出到Excel的代码：

protected void btnExport_Click(object sender, EventArgs e)
{
    for (int i = 0; i < gvReports.Rows.Count; i++)
    {
        for (int j = 0; j < gvReports.Rows[i].Cells.Count; j++)
        {
            if (gvReports.Rows[i].Cells[j].Text == "NA")
            {
                gvReports.Rows[i].Cells[j].HorizontalAlign = HorizontalAlign.Right;
            }
        }
    }
    gvReports.HeaderRow.Cells[1].Visible = false;
    gvReports.HeaderRow.Cells[2].Visible = false;
    string filename = string.Empty;
    int ddlselect = Convert.ToInt32(ddlCommMFArrival.SelectedValue);
    if (ddlselect == 1)
    {
        filename = "MarketFee" + DateTime.Now.ToString().Replace("/", "").Replace(":", "").Replace(" ", "") + "";
    }
    else if (ddlselect == 2)
    {
        filename = "Commodity Arrival" + DateTime.Now.ToString().Replace("/", "").Replace(":", "").Replace(" ", "") + "";
    }

    //Export gridview data into MS Excel
    blExportToExcel blExport = new blExportToExcel();
    //Export gridview data into MS Excel
    blExport.ExportGridViewToExcel(gvReports, this, filename);
}

    public void ExportGridViewToExcel(GridView grv, System.Web.UI.Page pg, string fileName)
    {
        grv.AllowPaging = false;

        pg.Response.Clear();
        pg.Response.AddHeader("content-disposition", "attachment; filename=" + fileName + ".xls");
        pg.Response.Charset = "";
        pg.Response.ContentType = "application/vnd.xls";

        System.IO.StringWriter stringWrite = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
        grv.RenderControl(htmlWrite);
        pg.Response.Write(stringWrite.ToString());
        pg.Response.End();

        grv.AllowPaging = true;
    }

protectedvoid btnExport\u单击（对象发送方，事件参数e）
{
对于（int i=0；i

---

然后在位置0和excel中添加一个空行（将数据从gridview导出到excel），并截断gridview中的最后一行。有人知道问题出在哪里吗？

尝试将您的

HeaderRow

添加逻辑从

数据绑定中移入
行创建的
。将此添加到
GridView
声明中：

OnRowCreated="gvReports_RowCreated"

然后这是创建的
行（注意
DataControlRowState.Insert
）：

如何以及何时将数据导出到Excel？@Eugene Podskal，我已经编辑了我的问题。请检查。是否调试了代码？？？网格需要标记@Ganesh_Devlekar，是的，我已经调试了代码，在databound事件中将行添加到gridview之后，将在gridview标题行之后的位置0添加一个空行。
protected void gvReports_RowCreated(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.Header)
    {
        GridViewRow row = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Insert);

        int count = e.Row.Cells.Count;
        TableHeaderCell cell = new TableHeaderCell();
        cell.BorderWidth = 0;
        cell.Text = "blah";
        cell.ColumnSpan = count - 2;
        row.Controls.Add(cell);
        row.BackColor = ColorTranslator.FromHtml("#f5fafd");
        gvReports.Controls[0].Controls.AddAt(0, row);
    }
}