datagrid指定行合并导出

导出代码：

public void GridViewToExcel(GridView ctrl, string FileType, string FileName) { HttpContext.Current.Response.Charset = "GB2312"; HttpContext.Current.Response.ContentEncoding = Encoding.UTF8; HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());

HttpContext.Current.Response.ContentType = FileType;//image/JPEG;text/HTML;image/GIF;vnd.ms-excel/msWord ctrl.Page.EnableViewState = false; StringWriter tw = new StringWriter(); HtmlTextWriter hw = new HtmlTextWriter(tw); ctrl.AllowPaging = false; bind(); ctrl.RenderControl(hw); HttpContext.Current.Response.Write(tw.ToString()); HttpContext.Current.Response.End(); ctrl.AllowPaging = true; bind(); }

重写方法，此方法必须需要：

public override void VerifyRenderingInServerForm(Control control) {

}

指定合并列：

PRotected void GridView1_DataBound(object sender, EventArgs e) { int[] arr = new int[] { 1,3,5 }; GroupRows(GridView1, arr, 2); GroupRows(GridView1, arr, 0); GroupRows(GridView1, arr, 1); }

//合并 public static void GroupRows(GridView GridView1, int[] cellIndex, int mostlyid) { int i = 0, rowSpanNum = 1; while (i < GridView1.Rows.Count - 1) { GridViewRow gvr = GridView1.Rows[i]; for (++i; i < GridView1.Rows.Count; i++) { GridViewRow gvrNext = GridView1.Rows[i]; if (gvr.Cells[cellIndex[mostlyid]].Text == gvrNext.Cells[cellIndex[mostlyid]].Text)// && gvr.Cells[cellIndex[mostlyid]].Text == gvrNext.Cells[cellIndex[mostlyid]].Text) { gvrNext.Cells[cellIndex[mostlyid]].Visible = false;//不然会把其他的挤走，造成行突出 rowSpanNum++; } else { gvr.Cells[cellIndex[mostlyid]].RowSpan = rowSpanNum; rowSpanNum = 1; break; } if (i == GridView1.Rows.Count - 1) { gvr.Cells[cellIndex[mostlyid]].RowSpan = rowSpanNum; } } } }