Export Panel control to Word Document in ASP.Net

Here I have crated sample that will help you out.

You must set EnableEventValidation="false" of Page.

HTML

<asp:Panel ID="panel2" runat="server">
    <div>
        Welcome to AspForums.Net
    </div>
</asp:Panel>
<asp:Button Id="btnExport" Text="Export" runat="server" OnClick="Export" />

C#

protected void Export(object sender, EventArgs e)
{
    Response.Clear();
    Response.Buffer = true;
    Response.ContentType = "application/vnd.word";
    Response.ContentEncoding = System.Text.Encoding.UTF8;
    Response.AddHeader("Content-Disposition", "attachment;filename=History.doc");
    Response.Charset = "";
    EnableViewState = false;
    Table table = new Table();
    TableRow row = new TableRow();
    row.Cells.Add(new TableCell());
    row.Cells[0].Controls.Add(panel2);
    table.Rows.Add(row);
    System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
    System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
    table.RenderControl(oHtmlTextWriter);
    Response.Write(oStringWriter.ToString());
    Response.End();
}

VB

Protected Sub Export(sender As Object, e As System.EventArgs) Handles btnExport.Click
    Response.Clear()
    Response.Buffer = True
    Response.ContentType = "application/vnd.word"
    Response.ContentEncoding = System.Text.Encoding.UTF8
    Response.AddHeader("Content-Disposition", "attachment;filename=History.doc")
    Response.Charset = ""
    EnableViewState = False
    Dim table As New Table()
    Dim row As New TableRow()
    row.Cells.Add(New TableCell())
    row.Cells(0).Controls.Add(panel2)
    table.Rows.Add(row)
    Dim oStringWriter As New System.IO.StringWriter()
    Dim oHtmlTextWriter As New System.Web.UI.HtmlTextWriter(oStringWriter)
    table.RenderControl(oHtmlTextWriter)
    Response.Write(oStringWriter.ToString())
    Response.[End]()
End Sub

Screenshot

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