GridDropDownColumn

[mww]

I have a grid with a GridDropDownColumn.  In normal browse mode the data wont display, even though there are rows in the grid, the column GridDropDownColumn doesnt show the data.  If I select edit, the drop down appears with the data.  Ive been trying to find a solution to this for quite a while, even telerik support cant help me.  Can anyone help ?  Heres the code for the grid.

<telerik:RadGrid ID="RadGridSecondaryCategories" runat="server" OnNeedDataSource="RadGridSecondaryCategories_NeedDataSource"
                                AutoGenerateEditColumn="True" AutoGenerateDeleteColumn="True" AllowAutomaticInserts="False"
                                AllowAutomaticDeletes="False" GridLines="None"
                                AllowAutomaticUpdates="False" AllowSorting="True"
                                Skin="Vista" AllowMultiRowEdit="False"
                                onitemcommand="RadGridSecondaryCategories_ItemCommand"
                                onitemdatabound="RadGridSecondaryCategories_ItemDataBound"
                                ondeletecommand="RadGridSecondaryCategories_DeleteCommand"
                                oninsertcommand="RadGridSecondaryCategories_InsertCommand"
                                onupdatecommand="RadGridSecondaryCategories_UpdateCommand" PageSize="5">
                                <MasterTableView CommandItemDisplay="Top" AutoGenerateColumns="False" OverrideDataSourceControlSorting="True"
                                    EditMode="InPlace" UseAllDataFields="True" >
                                    <RowIndicatorColumn>
                                        <HeaderStyle Width="20px" />
                                    </RowIndicatorColumn>
                                    <ExpandCollapseColumn>
                                        <HeaderStyle Width="20px" />
                                    </ExpandCollapseColumn>
                                    <Columns>
                                        <telerik:GridBoundColumn DataField="ID" DataType="System.Int32" HeaderText="ID"
                                            ReadOnly="true" Visible="false" SortExpression="ID" UniqueName="ID">
                                        </telerik:GridBoundColumn>

                                        <telerik:GridDropDownColumn DataField="Category"
                                            ListTextField="Category" ListValueField="Category" HeaderText="Category" UniqueName="SecondaryCategory" Display="True">
                                        </telerik:GridDropDownColumn>
                                    </Columns>


                                </MasterTableView>
                                <FilterMenu EnableTheming="True">
                                    <CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation>
                                </FilterMenu>
                            </telerik:RadGrid>

[Shinu]

Hi Mark,

You have not set any DataSourceID for the DropDown Column. Try setting the DataSourceID and see if it is working.

ASPX:

<telerik:GridDropDownColumn DataField="Category"   DataSourceID="SqlDataSource1"    ListTextField="Category" ListValueField="Category" HeaderText="Category" UniqueName="SecondaryCategory" Display="True">
                                        </telerik:GridDropDownColumn>

You can also go through the following help article.
Customize/Configure GridDropDownColumn

Thanks
Shinu.

[mww]

I cant set the DatasourceID in the aspx page because the data for the dropdown is generated dynamically depening on a user selection elsewhere on the page.  The only way I can get it to work is to use a GridTemplateColumn

<telerik:GridTemplateColumn    HeaderText="Category"  DataField="Category"  UniqueName="Category" >
                                         <ItemTemplate>
                                             <asp:Label ID="Label1" runat="server" Text='<%#Eval("Category") %>' ></asp:Label>
                                         </ItemTemplate>
                                         <EditItemTemplate>
                                             <telerik:RadComboBox ID="RadComboBoxCategories" runat="server" Skin="Vista">
                                             </telerik:RadComboBox>

                                         </EditItemTemplate>

                                        </telerik:GridTemplateColumn>