I've got a GridView that I want to put a checkbox column into.  The GridView is already databound to three text fields.  I want to add the checkbox column as an unbound column.  When I try and add it through the designer (Edit Columns...) I can add any column I want - except that one.  When I select it in the treeview, the option to add grays out.

If I "Add New Column..." from the GridView menu or I manually put in the <asp:CheckBoxColumn...> tag, the column itself appears just fine, except the checkbox isn't there!  When I preview in the browser, the checkbox isn't there, either!

 I'm sure this is something really simple.  Can anyone point me in the right direction?

 <TemplateField>
   <ItemTemplate>

           <asp:CheckBox ID="chk" runat="server" Text="Check Me" />
 

  </ItemTemplate> 
</TemplateField> 

If you want the other columns to be bound just show which ones by adding another TemplateField

 <TemplateField>
   <ItemTemplate>

          <asp:Literal ID="lTitle" runat="server" Text='<%# Eval("title") %>' />

 

 Where Title is a property from your bounded object

what if, i want to add a check box in my last row??

my code:

                Dim Col1 As New BoundField 
                Dim Col2 As New CheckBoxField

                GridView1.Columns.Clear()

                GridView1.Columns.Add(Col1)
                Col1.DataField = "Name"
                Col1.HeaderText = "ID"
                Col1.Visible = False

                GridView1.Columns.Add(Col2)
                ?
                ?
                ?

                GridView1.DataSource = myDataTable
                GridView1.DataBind()

 what should be my codes in the ? part?

Hi, Please go this link http://www.codeproject.com/KB/webforms/Editable_GridView.aspx

Here is a complete Editable GridView loaded with  textbox, dropdownlist and checkbox. hope that this will may help you.