I have a radgrid with 5 radcomboboxes inside edoit item itemplate.In the edit mode of radgrid the selected value property of combobox working for only two combo boxes but not for other.Please anybody give4 me the solution.Here is my radgrid sourcecode
<
telerik:RadGrid ID="RadGrid1" runat="server" AllowPaging="True" AutoGenerateColumns="False"
CellSpacing="0" GridLines="None" Height="520px" OnNeedDataSource="RadGrid1_NeedDataSource"
OnUpdateCommand="RadGrid1_UpdateCommand" PageSize="20" Skin="WebBlue" Visible="False"
OnPreRender="RadGrid1_PreRender">
<ClientSettings>
<Selecting CellSelectionMode="None" />
<Scrolling AllowScroll="True" UseStaticHeaders="True" />
</ClientSettings>
<MasterTableView DataKeyNames="ITEM_NUMBER" Width="100%">
<CommandItemSettings ExportToPdfText="Export to PDF" />
<RowIndicatorColumn FilterControlAltText="Filter RowIndicator column" Visible="True">
</RowIndicatorColumn>
<ExpandCollapseColumn FilterControlAltText="Filter ExpandColumn column" Visible="True">
</ExpandCollapseColumn>
<Columns>
<telerik:GridButtonColumn ButtonType="ImageButton" CommandName="Edit" HeaderStyle-Width="4%"
HeaderText="Edit" Text="Edit" UniqueName="EditButton" Visible="true">
<HeaderStyle Width="4%" />
</telerik:GridButtonColumn>
<telerik:GridBoundColumn DataField="Total Items" FilterControlAltText="Filter Total_Items column"
HeaderStyle-Font-Bold="true" HeaderStyle-Width="6%" HeaderText="Mapped Items"
ReadOnly="true" SortExpression="Total_Items" UniqueName="Total_Items">
<HeaderStyle Font-Bold="True" Width="6%" />
</telerik:GridBoundColumn>
<telerik:GridTemplateColumn EditFormHeaderTextFormat="<font color='red'>*</font>{0}"
HeaderStyle-Font-Bold="true" HeaderStyle-Width="6%" HeaderText="Ariba_Cat1" UniqueName="Ariba_Cat1">
<ItemTemplate>
<asp:Label ID="lbl_catone" runat="server" Text='<%#Eval("Ariba_Cat1") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<telerik:RadComboBox ID="rcb_aribacatone" runat="server" DataSourceID="Ariba_Cat1"
DataTextField="ariba_cat1" DataValueField="ariba_cat1">
</telerik:RadComboBox>
</EditItemTemplate>
<HeaderStyle Font-Bold="True" />
<ItemStyle HorizontalAlign="Left" />
</telerik:GridTemplateColumn>
<telerik:GridTemplateColumn EditFormHeaderTextFormat="<font color='red'>*</font>{0}"
HeaderStyle-Font-Bold="true" HeaderStyle-Width="6%" HeaderText="Ariba_Cat2" UniqueName="Ariba_Cat2">
<ItemTemplate>
<asp:Label ID="lbl_cattwo" runat="server" Text='<%#Eval("Ariba_Cat2") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<telerik:RadComboBox ID="rcb_aribacattwo" runat="server" DataSourceID="aribacat2"
DataTextField="ariba_cat2" DataValueField="ariba_cat2" >
</telerik:RadComboBox>
</EditItemTemplate>
<HeaderStyle Font-Bold="True" />
<ItemStyle HorizontalAlign="Left" />
</telerik:GridTemplateColumn>
<telerik:GridTemplateColumn EditFormHeaderTextFormat="<font color='red'>*</font>{0}"
HeaderStyle-Font-Bold="true" HeaderStyle-Width="6%" HeaderText="Ariba_Cat3" UniqueName="Ariba_Cat3">
<ItemTemplate>
<asp:Label ID="lbl_catthree" runat="server" Text='<%#Eval("Ariba_Cat3") %>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<telerik:RadComboBox ID="rcb_aribacatthree" runat="server" DataSourceID="SubCategory"
DataTextField="ariba_cat3" DataValueField="ariba_cat3" >
</telerik:RadComboBox>
</EditItemTemplate>
<HeaderStyle Font-Bold="True" />
<ItemStyle HorizontalAlign="Left" />
</telerik:GridTemplateColumn>
<telerik:GridTemplateColumn EditFormHeaderTextFormat="<font color='red'>*</font>{0}"
HeaderStyle-Font-Bold="true" HeaderStyle-Width="6%" HeaderText="Ariba_Cat4" UniqueName="Ariba_Cat4">
<EditItemTemplate>
<telerik:RadComboBox ID="rcb_aribacatfour" runat="server" DataSourceID="ds_aribafour"
DataTextField="ariba_cat4" DataValueField="ariba_cat4" SelectedValue='<%# Bind("Ariba_Cat4") %>'>
</telerik:RadComboBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lbl_catfour" runat="server" Text='<%#Eval("Ariba_Cat4") %>'></asp:Label>
</ItemTemplate>
<HeaderStyle Font-Bold="True" />
<ItemStyle HorizontalAlign="Left" />
</telerik:GridTemplateColumn>
<telerik:GridTemplateColumn EditFormHeaderTextFormat="<font color='red'>*</font>{0}"
HeaderStyle-Font-Bold="true" HeaderStyle-Width="6%" HeaderText="Ariba_Cat5" UniqueName="Ariba_Cat5">
<EditItemTemplate>
<telerik:RadComboBox ID="rcb_aribacatfive" runat="server" DataSourceID="ds_catfive"
DataTextField="ariba_cat5" DataValueField="ariba_cat5" SelectedValue='<%# Bind("Ariba_Cat5") %>'>
</telerik:RadComboBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lbl_catfive" runat="server" Text='<%#Eval("Ariba_Cat5") %>'></asp:Label>
</ItemTemplate>
<HeaderStyle Font-Bold="True" />
<ItemStyle HorizontalAlign="Left" />
</telerik:GridTemplateColumn>
</Columns>
<EditFormSettings>
<EditColumn FilterControlAltText="Filter EditCommandColumn column">
</EditColumn>
</EditFormSettings>
</MasterTableView>
<FilterMenu EnableImageSprites="False">
</FilterMenu>
</telerik:RadGrid>
while clicking on edit button getting below error.
Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: Selection out of range
Parameter name: value