I am using RadCombox inside RadGrid, When I tried to select some value from the box it's throwing error, please can you suggest something
 
 
 
 
 
 
 
 
 
below is the code
 
 
 
 
 
 
 
Please suggest where I am wrong.
                                Selection out of rangeParameter name: value Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.ArgumentOutOfRangeException: Selection out of rangeParameter name: valueSource Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  Stack Trace: [ArgumentOutOfRangeException: Selection out of rangeParameter name: value]   Telerik.Web.UI.RadComboBox.PerformDataBinding(IEnumerable dataSource) +259   Telerik.Web.UI.RadComboBox.OnDataSourceViewSelectCallback(IEnumerable data) +10   System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +31   Telerik.Web.UI.RadComboBox.OnDataBinding(EventArgs e) +83   Telerik.Web.UI.RadComboBox.PerformSelect() +21   System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +73   System.Web.UI.Control.DataBindChildren() +211   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +102   System.Web.UI.Control.DataBind() +15   System.Web.UI.Control.DataBindChildren() +211   System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +102   System.Web.UI.Control.DataBind() +15   Telerik.Web.UI.GridItem.SetupItem(Boolean dataBind, Object dataItem, GridColumn[] columns, ControlCollection rows) +515   Telerik.Web.UI.GridTableView.CreateFilteringItem(Boolean useDataSource, GridColumn[] copiedColumnSet, GridTHead thead) +100   Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource) +496   Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource) +499   System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) +57   System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +114   System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +31   System.Web.UI.WebControls.DataBoundControl.PerformSelect() +142   Telerik.Web.UI.GridTableView.PerformSelect() +4   System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +73   Telerik.Web.UI.GridTableView.DataBind() +239   Telerik.Web.UI.GridTableView.Rebind() +48   Telerik.Web.UI.GridFilterCommandEventArgs.ExecuteCommand(Object source) +515   Telerik.Web.UI.RadGrid.OnBubbleEvent(Object source, EventArgs e) +134   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37   Telerik.Web.UI.GridItem.OnBubbleEvent(Object source, EventArgs e) +38   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37   Telerik.Web.UI.GridItem.OnBubbleEvent(Object source, EventArgs e) +115   Telerik.Web.UI.GridItem.FireCommandEvent(String commandName, Object commandArgument) +46   Telerik.Web.UI.RadGrid.RaisePostBackEvent(String eventArgument) +5990   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +175   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565  --------------------------------------------------------------------------------Version Information: Microsoft .NET Framework Version:2.0.50727.3615; ASP.NET Version:2.0.50727.3618below is the code
<telerik:GridBoundColumn UniqueName="Name" DataField="Name" HeaderText="Name" HeaderStyle-Width="160px">                        <FilterTemplate>                            <telerik:RadComboBox ID="RadComboBoxTitle" DataType="System.Int32" UniqueName="Name"                                Height="200px" AppendDataBoundItems="true" SelectedValue='<%# ((GridItem)Container).OwnerTableView.GetColumn("Name").CurrentFilterValue %>'                                runat="server" OnClientSelectedIndexChanged="TitleIndexChanged">                                <Items>                                    <telerik:RadComboBoxItem Text="All" />                                </Items>                                                             </telerik:RadComboBox>                            <telerik:RadScriptBlock ID="RadScriptBlock1" runat="server">                                <script type="text/javascript">                                    function TitleIndexChanged(sender, args) {debugger;                                        var tableView = $find("<%# ((GridItem)Container).OwnerTableView.ClientID %>");                                        tableView.filter("Name", args.get_item().get_value(), "EqualTo");                                    }                                </script>                            </telerik:RadScriptBlock>                        </FilterTemplate>                    </telerik:GridBoundColumn>  protected void Page_Load(object sender, EventArgs e)        {                    }protected void VariableGrd_ItemDataBound(object sender, GridItemEventArgs e)        {            if (e.Item is GridFilteringItem)            {                //RadComboBox combolist = (e.Item as GridEditableItem).FindControl("RadComboBoxTitle") as RadComboBox;                //combolist.DataSource = variableCollection["Name"];                //combolist.DataBind();                GridFilteringItem filterItem = (GridFilteringItem)e.Item;                RadComboBox combo = (RadComboBox)filterItem.FindControl("RadComboBoxTitle");                var test = variableCollection.Select(var => new { Name = var.VariableAliasName, Value = var.VariableAliasName }).Distinct().ToList();                combo.DataSource = test;               // combo.DataSource = perso;                                 combo.DataTextField = "Name";                combo.DataValueField = "Value";                combo.ClearSelection();                combo.DataBind();            }Please suggest where I am wrong.


