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[Solved] Radgrid Master/Detail with ADO.Net entities gives Stackoverflow

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This is a migrated thread and some comments may be shown as answers.

Joost van B asked on 31 Oct 2009, 04:11 PM

Hi all,

I made a Master/detail page with 2 Radgrids (Persons and their Cars). When I start the page everything is ok. I get Persons and the Cars of the first person. After selecting the second row in the person grid (the row is clientside selectable and there is a postback with AJAX), I expect the cars of the second person, but I receive an error:

An unhandled exception of type 'System.StackOverflowException' occurred in mscorlib.dll

It is impossible for me to debug this error.

Ì am using ADO.NET entities. When a person is selected in the first grid, the id of the person is passed to the EntityDataSourceCar Datasource with a Control parameter in the Where parameters. The first time works because of the default values...

Has anybody a clue? Downhere is the code of the aspx. The aspx.cs is empty.

Thanks in advance,
Joost

    
            <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Default" %> 
        
            <%@ Register Assembly="System.Web.Entity, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" 
        
                Namespace="System.Web.UI.WebControls" TagPrefix="asp" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
        
            <html xmlns="http://www.w3.org/1999/xhtml">  
        
            <head runat="server">  
        
                <title></title>  
        
                <telerik:RadStyleSheetManager ID="RadStyleSheetManager1" runat="server" /> 
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server">  
        
                <telerik:RadScriptManager ID="RadScriptManager1" runat="server">  
        
                    <Scripts> 
        
                        <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" /> 
        
                        <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" /> 
        
                    </Scripts> 
        
                </telerik:RadScriptManager> 
        
                <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">  
        
                 <AjaxSettings> 
        
                        <telerik:AjaxSetting AjaxControlID="rgPerson">  
        
                            <UpdatedControls> 
        
                                <telerik:AjaxUpdatedControl ControlID="rgPerson" /> 
        
                                <telerik:AjaxUpdatedControl ControlID="rgCars" /> 
        
                            </UpdatedControls> 
        
                        </telerik:AjaxSetting> 
        
                    </AjaxSettings> 
        
                </telerik:RadAjaxManager> 
        
                <div> 
        
                    <telerik:RadGrid ID="rgPerson" runat="server" AllowFilteringByColumn="True" AllowPaging="True" 
        
                        AllowSorting="True" DataSourceID="EntityDataSourcePerson" GridLines="None" AllowAutomaticDeletes="True" 
        
                        AllowAutomaticInserts="True" AllowAutomaticUpdates="True" AutoGenerateDeleteColumn="True" 
        
                        AutoGenerateEditColumn="True" ShowGroupPanel="True">  
        
                        <ClientSettings AllowKeyboardNavigation="true" EnablePostBackOnRowClick="true">  
        
                            <Selecting AllowRowSelect="true" /> 
        
                        </ClientSettings> 
        
                        <MasterTableView AutoGenerateColumns="False" DataKeyNames="id" DataSourceID="EntityDataSourcePerson" 
        
                            CommandItemDisplay="Top" EditMode="PopUp">  
        
                            <RowIndicatorColumn> 
        
                                <HeaderStyle Width="20px"></HeaderStyle> 
        
                            </RowIndicatorColumn> 
        
                            <ExpandCollapseColumn> 
        
                                <HeaderStyle Width="20px"></HeaderStyle> 
        
                            </ExpandCollapseColumn> 
        
                            <Columns> 
        
                                <telerik:GridBoundColumn DataField="id" DataType="System.Int32" HeaderText="id" ReadOnly="True" 
        
                                    SortExpression="id" UniqueName="id">  
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="Name" HeaderText="Name" SortExpression="Name" 
        
                                    UniqueName="Name">  
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="City" HeaderText="City" SortExpression="City" 
        
                                    UniqueName="City">  
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridDateTimeColumn DataField="Birthday" HeaderText="Birthday" SortExpression="Birthday" 
        
                                    UniqueName="Birthday">  
        
                                </telerik:GridDateTimeColumn> 
        
                            </Columns> 
        
                        </MasterTableView> 
        
                    </telerik:RadGrid> 
        
                    <br /> 
        
                    <telerik:RadGrid ID="rgCar" runat="server" AllowFilteringByColumn="True" AllowPaging="True" 
        
                        AllowAutomaticDeletes="true" AllowAutomaticInserts="true" AllowAutomaticUpdates="true" 
        
                        AllowSorting="True" AutoGenerateDeleteColumn="True" AutoGenerateEditColumn="True" 
        
                        DataSourceID="EntityDataSourceCar" GridLines="None">  
        
                        <MasterTableView AutoGenerateColumns="False" DataKeyNames="id" DataSourceID="EntityDataSourceCar" 
        
                            CommandItemDisplay="Top">  
        
                            <RowIndicatorColumn> 
        
                                <HeaderStyle Width="20px"></HeaderStyle> 
        
                            </RowIndicatorColumn> 
        
                            <ExpandCollapseColumn> 
        
                                <HeaderStyle Width="20px"></HeaderStyle> 
        
                            </ExpandCollapseColumn> 
        
                            <Columns> 
        
                                <telerik:GridBoundColumn DataField="id" DataType="System.Int32" HeaderText="id" ReadOnly="True" 
        
                                    SortExpression="id" UniqueName="id">  
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="Brand" HeaderText="Brand" SortExpression="Brand" 
        
                                    UniqueName="Brand">  
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="PlateNumber" HeaderText="PlateNumber" SortExpression="PlateNumber" 
        
                                    UniqueName="PlateNumber">  
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="Color" HeaderText="Color" SortExpression="Color" 
        
                                    UniqueName="Color">  
        
                                </telerik:GridBoundColumn> 
        
                            </Columns> 
        
                        </MasterTableView> 
        
                        <ClientSettings> 
        
                            <Selecting AllowRowSelect="True" /> 
        
                        </ClientSettings> 
        
                    </telerik:RadGrid> 
        
                    <asp:EntityDataSource ID="EntityDataSourcePerson" runat="server" ConnectionString="name=TestEntities" 
        
                        DefaultContainerName="TestEntities" EnableDelete="True" EnableInsert="True" EnableUpdate="True" 
        
                        EntitySetName="Person">  
        
                    </asp:EntityDataSource> 
        
                    <asp:EntityDataSource ID="EntityDataSourceCar" runat="server" ConnectionString="name=TestEntities" 
        
                        DefaultContainerName="TestEntities" EnableDelete="True" EnableInsert="True" EnableUpdate="True" AutoGenerateWhereClause="true" 
        
                        EntitySetName="Car">  
        
                        <WhereParameters> 
        
                            <asp:ControlParameter ControlID="rgPerson" DefaultValue="1" Name="Person.id" PropertyName="SelectedValue" 
        
                                Type="Int32" /> 
        
                        </WhereParameters> 
        
                    </asp:EntityDataSource> 
        
                </div> 
        
                </form> 
        
            </body> 
        
            </html>

[Solved] Radgrid Master/Detail with ADO.Net entities gives Stackoverflow

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