Asp.net gridview row visible or else not error

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Hello programmers, got a few problem here. Im my gridview is a label which is if it has a value the one column will be visible but if hasnt the the column will not be visible. Here is my code

VB

Protected Sub grdCourse_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles grdCourse.RowDataBound
       Dim x As Integer = Session("X")
       If x = "1" Then
           If e.Row.RowType = DataControlRowType.DataRow Then
               Dim labelDID As Label = DirectCast(e.Row.FindControl("DisciplineCourseID"), Label)
               If labelDID.Text <> "" Then
                   grdCourse.Columns(6).Visible = True
               Else
                   grdCourse.Columns(6).Visible = False
               End If
           End If

Now Im getting an error cause when the gridview detect one value on a row label, the column will be visible even if some row label dont have value. In other term if it detects that the label has a value then the column will be visible.
All I want sir is the row will be check one by one and if the labelDID is null then Columns(6).Visible = False
Is it possible sir?Thanks for your time and sorry for my english

Posted 23-Jan-12 18:41pm

janwel

Updated 23-Jan-12 18:43pm

v2

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2 solutions

Solution 3

Hi,

As per my understanding, your requirement is if you have atleast one cell with data..then the column should be visible.Else invisible.

Is that correct?

If so,
1.Take a session variable.
2.Initialise it to false.
3.In your row bound ,

if the session variable is false then
  check the data of the label.
        if the data is present
            assign true to session variable.
         end if
 end if

 if sessionvariable is true then
  column.visible=true

Hope this helps.

Posted 23-Jan-12 19:07pm

manognya kota

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janwel · Accepted Answer · 2012-01-23T18:59:00

Got It. instead of using columns(i) I chage it to this one

VB

Dim img As ImageButton = DirectCast(e.Row.FindControl("ImageDeleteCourse"), ImageButton)
               If labelDID.Text <> "" Then
                   img.Visible = True
               Else
                   img.Visible = False
               End If

But thanks anyway