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GridDropDownColumn

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Grid

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

mww asked on 18 Oct 2008, 04:35 PM

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>

2 Answers, 1 is accepted

answered on 20 Oct 2008, 04:01 AM

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.

answered on 20 Oct 2008, 12:48 PM

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>