[RESOLVED] DataGridViews & checkboxes

[c3p0]

Hi,

I have a datagridview and in it a column of checkboxes. How can I get it to where IF ANY of the checkboxes in that column are clicked on (event change), then a MessageBox will show up...

Thanks for the help!!!

[c3p0]

I have something like:

 Private Sub dgvWeldingLog_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvWeldingLog.CellContentClick

        MessageBox.Show("hello", "world", MessageBoxButtons.OK, MessageBoxIcon)

End Sub

This works, but it works for ALLL the columns. I only want it to do it for the column with the checkbox in it.

[ForumAccount]

If you look in your event signature you will see the variable 'e'. If you access the members of said variable you will see some properties that will help you.

[kareninstructor]

Replace YourColName with the column name to work with. I do not check to see the type of column as I am sure the name is correct in regards to YourColName is a CheckBox column type.

Private Sub DataGridView1_CellValueChanged( _ 
	ByVal sender As Object, _ 
	ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _ 
	Handles DataGridView1.CellValueChanged
	
    If DataGridView1.CurrentRow IsNot Nothing Then
        If e.ColumnIndex = DataGridView1.Columns("YourColName").Index Then
            If CBool(DataGridView1.Rows(DataGridView1.CurrentRow.Index).Cells("YourColName").Value) Then
                MsgBox("Checked")
            Else
                MsgBox("UnChecked")
            End If
        End If
    End If
    
End Sub

[kareninstructor]

As per ForumnAccount

Private Sub DataGridView1_CellContentClick( _ 
	ByVal sender As Object, _ 
	ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _ 
	Handles DataGridView1.CellContentClick
	
    If DataGridView1.CurrentRow IsNot Nothing Then
        If e.ColumnIndex = DataGridView1.Columns("YourColName").Index Then
            If CBool(DataGridView1.Rows(DataGridView1.CurrentRow.Index).Cells("YourColName").Value) Then
                MsgBox("YourColName")
            Else
                MsgBox("UnChecked")
            End If
        End If
    End If
End Sub

[kareninstructor]

Also here is a demo I did with what I call dualling checkbox columns
http://www.vbforums.com/showpost.php...34&postcount=9

[c3p0]

Thanks for the response! I finally figured it out before I even read your post. This seems to work...so far:

Private Sub dgvstuff_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvstuff.CellContentClick

        If dgvstuff.CurrentRow.Cells("dgvcheckboxcolumn").Selected = True Then
            MessageBox.Show("hello", "world", MessageBoxButtons.OK, MessageBoxIcon.Hand)
        End If

    End Sub

[kareninstructor]

Thanks for the response! I finally figured it out before I even read your post. This seems to work...so far:

Private Sub dgvstuff_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvstuff.CellContentClick

        If dgvstuff.CurrentRow.Cells("dgvcheckboxcolumn").Selected = True Then
            MessageBox.Show("hello", "world", MessageBoxButtons.OK, MessageBoxIcon.Hand)
        End If

    End Sub

Great although you should get in the habit to check that there is a current row, maybe there always is in this code but not in another project.

[c3p0]

As per ForumnAccount

Private Sub DataGridView1_CellContentClick( _ 
	ByVal sender As Object, _ 
	ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _ 
	Handles DataGridView1.CellContentClick
	
    If DataGridView1.CurrentRow IsNot Nothing Then
        If e.ColumnIndex = DataGridView1.Columns("YourColName").Index Then
            If CBool(DataGridView1.Rows(DataGridView1.CurrentRow.Index).Cells("YourColName").Value) Then
                MsgBox("Checked")
            Else
                MsgBox("UnChecked")
            End If
        End If
    End If
End Sub

Hey, Thanks for the help! I'm actually running across a minor issue with both of our codes. Whenever I check a checkbox that's empty, it still gives me the message "unchecked" instead of "checked". Actually it NEVER gives me the message "checked".

[kareninstructor]

Here is a working copy where only the first CheckBox column is done with a Msgbox. This attached VS2008 is a slimmed down version of the one I suggested you review in an earlier post.