Dropdownlist disappear when put it in EditItemTemplate

Question

If I put my dropdownlist column in ItemTemplate, it appear but I can't change the value. When I put it in EditItemTemplate like this:

<EditItemTemplate>
     <asp:DropDownList DataValueField="COLUMN_NAME" DataTextField="COLUMN_NAME" DataSource='<%#GetDataSourceDesCol()%>' Width="90%" Visible=true ID="ddlDesCol" runat="server">
     </asp:DropDownList>
</EditItemTemplate>

Then my ddl is not showing any more. How to fix it?

p/s: Even that I try with a new project and simple code like:

<asp:GridView ID="GridView1" AutoGenerateColumns=false runat="server">
     <Columns>
          <asp:TemplateField>
               <EditItemTemplate>
                     <asp:DropDownList ID="DropDownList1" runat="server">
                     </asp:DropDownList>
               </EditItemTemplate>
          </asp:TemplateField>
      </Columns>
</asp:GridView>

The ddl is not showing too!

@user.need more code for analyzing the problem..can you please show the code for fectching data to drop down list — Sai Avinash, Dec 12 '13 at 08:35
Even with a new project and no code inside, the ddl is not showing too — user2500561, Dec 12 '13 at 08:39

Sai Avinash · Answer 1 · 2013-12-12T09:21:05.227

All the controls inside the edit item template will be visible only when the grid view is in the edit mode.

So, you need to set the grid to edit mode. Inorder to make your code to work.

Hope this helps..

if you want to put entire grid view in edit mode:

protected void btnEdit_Click(object sender, EventArgs e)
    {
        GridView1.EditIndex = 1;
    }

if you want a particular row to be in edit mode

Just implement the Row_Editing event and do something like this:

protected void Row_Editing(object sender, GridViewEditArgs e) 
{
  myGridView.EditItemIndex = e.EditItemIndex; 
  BindData(); 
}

Bind data will populate the GridView with the data.

Dropdownlist disappear when put it in EditItemTemplate

1 Answers1