I have several ajaxToolkit charts that I want to export to excel. I get the following error when I try to export. Script control 'PieChart1' is not a registered script control. Script controls must be registered using RegisterScriptControl() before calling RegisterScriptDescriptors(). Parameter name: scriptControl
Here is my code:
<%@ Page Title="Transfers w/ Data" Language="C#" MasterPageFile="~/Master.master" AutoEventWireup="true" CodeFile="TransfersWData.aspx.cs" Inherits="TransfersWData" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<link href="StyleSheet.css" rel="stylesheet" type="text/css" />
<asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="UpdatePanel1">
<ProgressTemplate>
<div class="modaldiv">
<div class="centerdiv">
<img alt="" src="images/loading_spinner.gif" />
</div>
</div>
</ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdatePanel runat="server" id="UpdatePanel1">
<ContentTemplate>
<div>
<table>
<tr>
<td>
<span class="h1">Period:</span><br />
<asp:DropDownList ID="ddlperiod" runat="server" AutoPostBack="True"
onselectedindexchanged="ddlperiod_SelectedIndexChanged">
<asp:ListItem Text="Last 30 Days" Value="30"></asp:ListItem>
<asp:ListItem Text="Last 7 Days" Value="7"></asp:ListItem>
<asp:ListItem Text="Last Week" Value="3" Selected="True"></asp:ListItem>
<asp:ListItem Text="Last Month" Value="5"></asp:ListItem>
<asp:ListItem Text="This Week" Value="2"></asp:ListItem>
<asp:ListItem Text="This Month" Value="4"></asp:ListItem>
<asp:ListItem Text="Yesterday" Value="1" ></asp:ListItem>
<asp:ListItem Text="Last 90 Days" Value="6"></asp:ListItem>
</asp:DropDownList>
</tr>
<div id="divLOB" runat="server">
<tr>
<td>
<span style="font-weight:bold">LOB</span><br />
<asp:DropDownList ID="ddlLOB" runat="server" CssClass="font">
<asp:ListItem Text="All" Value="0" Selected="True"></asp:ListItem>
<asp:ListItem Text="Care" Value="Y"></asp:ListItem>
<asp:ListItem Text="Collections" Value="C"></asp:ListItem>
<asp:ListItem Text="PPD" Value="P"></asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnrun" runat="server" Text="Run" onclick="btnrun_Click" />
</td>
<td>
<asp:Button ID="btnExportExcel" runat="server" Text="export"
onclick="btnExportExcel_Click" />
</td>
</tr>
</div>
</table>
<asp:Panel ID="Panel1" runat="server">
<table>
<tr>
<td>
<ajaxToolkit:PieChart ID="PieChart1" runat="server" ChartHeight="250" ChartWidth ="350"
ChartType="Column" ChartTitleColor="#0E426C" BorderStyle="None" Visible="False"
ChartTitle="% Transfers with Data" Theme="">
</ajaxToolkit:PieChart>
</td>
<td>
<ajaxToolkit:PieChart ID="PieChartEnterpriseTransferSummary" runat="server"
ChartHeight="250" ChartWidth ="350" Visible="False"
ChartType="Column" ChartTitleColor="#0E426C" BorderStyle="None"
ChartTitle="Enterprise Transfer Summary" Theme="">
</ajaxToolkit:PieChart>
</td>
<td>
<ajaxToolkit:PieChart ID="PieChartEnterpriseSoftphoneCompliance" runat="server"
ChartHeight="250" ChartWidth ="350" Visible="False"
ChartType="Column" ChartTitleColor="#0E426C" BorderStyle="None"
ChartTitle="Enterprise Softphone Compliance" Theme="">
</ajaxToolkit:PieChart>
</td>
</tr>
</table>
<table>
<tr>
<td>
<ajaxToolkit:LineChart ID="LCEnterpriseTransferswithData" runat="server"
BaseLineColor="black" CategoryAxisLineColor="black" ChartHeight="250"
ChartTitleColor="#0E426C" ChartWidth="250"
ValueAxisLineColor="black" Visible="False"
ChartTitle="Enterprise Transfers with Data" Theme="" TooltipBackgroundColor=""
TooltipBorderColor="" TooltipFontColor="" ValueAxisLines="0"
AreaDataLabel="" CategoriesAxis="">
</ajaxToolkit:LineChart>
</td>
<td>
<ajaxToolkit:LineChart ID="LCPCTTransfersWData" runat="server"
BaseLineColor="black" CategoryAxisLineColor="black" ChartHeight="250"
ChartTitleColor="#0E426C" ChartWidth="250" ChartType="Stacked"
ValueAxisLineColor="black" Visible="False"
ChartTitle="% Transfers with Data" Theme="" TooltipBackgroundColor=""
TooltipBorderColor="" TooltipFontColor="" ValueAxisLines="0"
AreaDataLabel="" CategoriesAxis="">
</ajaxToolkit:LineChart>
</td>
</tr>
</table>
</asp:Panel>
</ContentTemplate>
</ajaxToolkit:TabPanel>
</ajaxToolkit:TabContainer>
</ContentTemplate>
</asp:UpdatePanel>
</asp:Content>
void exportpanel()
{
Response.Clear();
Response.AddHeader("content-disposition", "attachment; filename=FileName1.xls");
Response.Charset = "";
Response.ContentType = "application/vnd.xls";
System.IO.StringWriter stringWrite = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
Panel1.RenderControl(htmlWrite);
Response.Write(stringWrite.ToString());
Response.End();
}