RadGrid exporting with NestedViewTemplate

[Ajay]

Hi,
I am trying to export a radgrid to pdf which is having data in NestedViewTemplate.
When I try to do so the error come, please see the attached snapshot for error details.

My code is as belows:

<telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server">
        <telerik:RadGrid ID="radGridShippedOrders" runat="server" GridLines="None" AllowPaging="True"
            PageSize="15" AllowSorting="True" AutoGenerateColumns="false" ShowStatusBar="true" ShowHeader="false"
            HorizontalAlign="NotSet" AllowMultiRowEdit="false" OnNeedDataSource="radGridShippedOrders_NeedDataSource" 
             OnItemCommand="radGridShippedOrders_OnItemCommand" AllowCustomPaging="true" VirtualItemCount="5"
            Width="800px" AllowMultiRowSelection="False" AllowFilteringByColumn="true" ShowGroupPanel="True">
            <PagerStyle Mode="NextPrevAndNumeric" AlwaysVisible="true"></PagerStyle>
            
            <ExportSettings ExportOnlyData="true" IgnorePaging="true" OpenInNewWindow="true">
                 <Pdf PageTitle="Shipped Orders" />
                 <Excel Format=ExcelML />
            </ExportSettings>


            <MasterTableView GroupLoadMode="Client" CommandItemDisplay="None" DataKeyNames="OAHSSQ" Name="MTVShippedOrders">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="OAORGN" HeaderText="OAORGN" DataField="OAORGN">
                    </telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="OAHSSQ" HeaderText="OAHSSQ" DataField="OAHSSQ">
                    </telerik:GridBoundColumn>
                </Columns>
<NestedViewTemplate>
                    <b>Invoice Header</b><br />
                    <telerik:RadGrid ID="radGridInvoiceHeader" runat="server" GridLines="None" AllowPaging="True"
                        PageSize="20" AllowSorting="True" AutoGenerateColumns="false" ShowStatusBar="false" ShowHeader="false"
                        HorizontalAlign="NotSet" AllowMultiRowEdit="false" OnNeedDataSource="radGridInvoiceHeader_NeedDataSource"
                        Width="100%" AllowMultiRowSelection="False" AllowFilteringByColumn="false">
                        <PagerStyle Mode="NextPrevAndNumeric" AlwaysVisible="true"></PagerStyle>
                        <ExportSettings ExportOnlyData="false" IgnorePaging="true" OpenInNewWindow="true">
                            <Pdf PageTitle="Invoice Header" />
                        </ExportSettings>
                        <MasterTableView CommandItemDisplay="Bottom">
                              <Columns>
                                <telerik:GridBoundColumn UniqueName="OHORNO" HeaderText="Order Number" DataField="OHORNO"></telerik:GridBoundColumn>
                                <telerik:GridBoundColumn UniqueName="OHCSNM" HeaderText="Customer Name" DataField="OHCSNM"></telerik:GridBoundColumn>
                                <telerik:GridBoundColumn UniqueName="OHCAD1" HeaderText="Sold To Add 1" DataField="OHCAD1"></telerik:GridBoundColumn>
</Columns>
                        </MasterTableView>
                    </telerik:RadGrid>
                    
                    <br />
                    <b>Invoice Details</b><br />
                    <telerik:RadGrid ID="radGridInvoiceDetails" runat="server" GridLines="None" AllowPaging="True"
                        PageSize="20" AllowSorting="True" AutoGenerateColumns="false" ShowStatusBar="false" ShowHeader="false"
                        HorizontalAlign="NotSet" AllowMultiRowEdit="false" OnNeedDataSource="radGridInvoiceDetails_NeedDataSource"
                        Width="100%" AllowMultiRowSelection="False" AllowFilteringByColumn="false" OnItemDataBound="radGridInvoiceDetails_ItemDataBound">
                        <PagerStyle Mode="NextPrevAndNumeric" AlwaysVisible="true"></PagerStyle>
                        <ExportSettings ExportOnlyData="false" IgnorePaging="true" OpenInNewWindow="true">
                            <Pdf PageTitle="Invoice Header" />
                        </ExportSettings>
                        <MasterTableView CommandItemDisplay="Bottom" ShowFooter="true">
<Columns>
                                <telerik:GridBoundColumn UniqueName="ODITNO" HeaderText="Item Number" DataField="ODITNO"></telerik:GridBoundColumn>
                                <telerik:GridBoundColumn UniqueName="ODITD1" HeaderText="Item Description" DataField="ODITD1"></telerik:GridBoundColumn>
                                <telerik:GridBoundColumn UniqueName="ODQTOR" HeaderText="Quantity Ordered" DataField="ODQTOR"></telerik:GridBoundColumn>
                            </Columns>
                        </MasterTableView>
                    </telerik:RadGrid>


                </NestedViewTemplate>


            </MasterTableView>
             <ClientSettings AllowGroupExpandCollapse="True" ReorderColumnsOnClient="True" AllowDragToGroup="True"
                AllowColumnsReorder="True">
            </ClientSettings>
             <GroupingSettings ShowUnGroupButton="true" />
        </telerik:RadGrid>
    

CODE BEHIND
protected void btnExportToPDF_Click(object sender, EventArgs e)
        {
            radGridShippedOrders.ExportSettings.OpenInNewWindow = true;
            radGridShippedOrders.ExportSettings.ExportOnlyData = true;
            radGridShippedOrders.ExportSettings.IgnorePaging = true;

            foreach (GridDataItem gi in radGridShippedOrders.MasterTableView.Items)
            {
                gi.Expanded = true;
                if (gi.HasChildItems)
                {
                    RadGrid rgHeader = (RadGrid)gi.ChildItem.NestedViewCell.Controls[0].Controls[1];
                    rgHeader.Rebind();

                    RadGrid rgDetails = ((RadGrid)gi.ChildItem.NestedViewCell.Controls[0].FindControl("radGridInvoiceDetails"));
                    rgDetails.Rebind();
                } 
            }
            radGridShippedOrders.MasterTableView.HierarchyDefaultExpanded = true;
            radGridShippedOrders.MasterTableView.ExportToPdf();
        }

[Princy]

Hello Ajay,

This issue arises when a DIV element with specified dimensions or absolute positioning is present in the grid. Remove the relevant width/height/position attributes to avoid this exception. Check the following help documentation which explains more about this.
PDF export.

Thanks,
Princy

[Ajay]

Hi Princy,

That worked perfectly fine after removing the width from radgrids.
But still there is an issue, the radgrids inside the NestedViewTemplate are not included/rendered in the exported pdf document.
The static content inside the NestedViewTemplate is present in the exported pdf.

Please suggest something for this.

[Ajay]

Hi Princy,

Any update on this?

Also how can I exclude controls inside NestedViewTemplate while exporting?


Thanks
Ajay

[Marlon Santos]

Did you ever figure this issue out?

[Ajay]

Hi Marlon,

Luckily I solved the issue.
Instead of exporting the grid on button click, I exported the grid in the radGrid_OnPreRender event.

Now I am stuck in another issue.
When I try to sort any column, then the NeedDatasource event of all RadGrids inside the NestedTemplateView are called (even if the parent is not in expanded mode). This causes page to take a lot of time to sort the grid.

Any idea how to stop this?

Thanks 
Ajay