GridView print displaying empty panel.

BigHeart

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User: BigHeart
Posted: on Dec 03, 2012 02:03 AM
Forum: Data Controls
Answer: 1
Views: 2990

I am using asp snippet for printing gridview i am getting this error

Control 'MainContent_GridView2' of type 'GridView' must be placed inside a form tag with runat=server

protected void PrintAllPages(object sender, EventArgs e)
    {
        GridView1.PagerSettings.Visible = false;
    GridView2.DataBind();
    StringWriter sw = new StringWriter();
    HtmlTextWriter hw = new HtmlTextWriter(sw);
    GridView2.RenderControl(hw);
    string gridHTML = sw.ToString().Replace("\"", "'")
        .Replace(System.Environment.NewLine, "");
    StringBuilder sb = new StringBuilder();
    sb.Append("<script type = 'text/javascript'>");
    sb.Append("window.onload = new function(){");
    sb.Append("var printWin = window.open('', '', 'left=0");
    sb.Append(",top=0,width=1000,height=600,status=0');");
    sb.Append("printWin.document.write(\"");
    sb.Append(gridHTML);
    sb.Append("\");");
    sb.Append("printWin.document.close();");
    sb.Append("printWin.focus();");
    sb.Append("printWin.print();");
     sb.Append("printWin.close();};");
      sb.Append("</script>"); 
      ClientScript.RegisterStartupScript(this.GetType(), "GridPrint", sb.ToString());
      GridView2.PagerSettings.Visible = true;
    GridView2.DataBind();
}

then i added this

 public override void VerifyRenderingInServerForm(Control control)
    {
        /* Verifies that the control is rendered */
    }

after this i am getting empty panel in IE8 and nothing in chrome and firefox,.,.

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BigHeart

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ANSWER
User: BigHeart
Replied: on Dec 03, 2012 03:07 AM
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I tried this code its working fine,.

 GridView1.UseAccessibleHeader = true;
        GridView1.HeaderRow.TableSection = TableRowSection.TableHeader;
        GridView1.FooterRow.TableSection = TableRowSection.TableFooter;
        GridView1.Attributes["style"] = "border-collapse:separate";
        foreach (GridViewRow row in GridView1.Rows)
        {
            if (row.RowIndex % 10 == 0 && row.RowIndex != 0)
            {
                row.Attributes["style"] = "page-break-after:always;";
            }
        }
        StringWriter sw = new StringWriter();
        HtmlTextWriter hw = new HtmlTextWriter(sw);
        GridView1.RenderControl(hw);
        string gridHTML = sw.ToString().Replace("\"", "'").Replace(System.Environment.NewLine, "");
        StringBuilder sb = new StringBuilder();
        sb.Append("<script type = 'text/javascript'>");
        sb.Append("window.onload = new function(){");
        sb.Append("var printWin = window.open('', '', 'left=0");
        sb.Append(",top=300,width=1000,height=600,status=0');");
        sb.Append("printWin.document.write(\"");
        string style = "<style type = 'text/css'>thead {display:table-header-group;} tfoot{display:table-footer-group;}</style>";
        sb.Append(style + gridHTML);
        sb.Append("\");");
        sb.Append("printWin.document.close();");
        sb.Append("printWin.focus();");
        sb.Append("printWin.print();");
        sb.Append("printWin.close();");
        sb.Append("};");
        sb.Append("</script>");
        ClientScript.RegisterStartupScript(this.GetType(), "GridPrint", sb.ToString());
        GridView1.DataBind();

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GridView print displaying empty panel.

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