How to achieve this?

check this link to see if you can adapt the one click button technique to your select button

http://www.codeproject.com/useritems/oneclickbutton.asp

tried that piece of code earlier. not exactly what im after.

i need the button to stay disabled after the postback. how do I do that?

thanks
 

given a grid with the select button in the 1st column:

<asp:GridView ID="GridView1" runat="server">            
   <Columns>
     <asp:CommandField ButtonType="Button" ShowSelectButton="True" />
   </Columns>
</asp:GridView>

We can add a little code behind to enable/disable the select button in that 1st column:

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not Page.IsPostBack Then
            Me.GridView1.DataSource = TestData.GetTestData
            Me.GridView1.DataBind()
        End If
    End Sub

    Protected Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles GridView1.RowCommand
        ' if we alread had a selected row, the select button would be disabled
        ' so we re-enable it
        If Not Me.GridView1.SelectedRow Is Nothing Then
            DirectCast(Me.GridView1.SelectedRow.Cells(0).Controls(0), Button).Enabled = True
        End If
    End Sub

    Protected Sub GridView1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.SelectedIndexChanged
        'now that we've selected a new row, we will disable the select button.
        'in this example, the select button was the only control in the 1st column of the grid
        DirectCast(Me.GridView1.SelectedRow.Cells(0).Controls(0), Button).Enabled = False
    End Sub

 this works too. which solution is the most right one? i assume this one? thanks

 from msdn: Although the RowCommand event is raised when a button listed in the previous table is clicked, it is recommended that you use the events listed in the table for the operation.

1        protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
2        {
3            (this.GridView1.SelectedRow.Cells[0].Controls[0] as Button).Enabled = false;
4        }
5    
6        protected void GridView1_SelectedIndexChanging(object sender, GridViewSelectEventArgs e)
7        {
8            if (GridView1.SelectedRow != null)
9            {
10               (this.GridView1.SelectedRow.Cells[0].Controls[0] as Button).Enabled = true;
11           }
12       }
13