Checkbox OnCheckedChanged

[djciko]

al click su un bottone esterno alla griglia, ad esempio:

    Protected Sub bt_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles bt.Click
        For Each riga As GridViewRow In GRID.Rows
            If riga.RowType = DataControlRowType.DataRow Then
                If CType(riga.FindControl("ck"), CheckBox).Checked = True Then
                    Ctype(riga.FindControl("TXImporto"),Textbox).visible = false
                    Ctype(riga.FindControl("TXImporto"),Textbox).text = "0"
                End If
            End If
        Next
    End Sub