Thanks everybody for the many replies. I am including the code I use to
create my very simple datagrid. I am only concerned about the first column,
when the user changes it.
'------DataGrid1 TABLESTYLE----------------------
Dim ts As DataGridTableStyle
DataGrid1.DataSource = DS1
DataGrid1.DataMember = "rooms"
ts = New DataGridTableStyle
ts.MappingName = "rooms"
ts.PreferredRowHeight = 25
ts.AlternatingBackColor = System.Drawing.Color.Gainsboro
ts.HeaderBackColor = System.Drawing.Color.Gainsboro
ts.HeaderForeColor = System.Drawing.Color.Black
'-------dg_punch COLUMNSTYLES----------------------
Dim tb1 As DataGridTextBoxColumn
tb1 = New DataGridTextBoxColumn
tb1.HeaderText = "Room Number"
tb1.MappingName = "roomno"
tb1.NullText = ""
tb1.Width = 150
ts.GridColumnStyles.Add(tb1)
Dim tb2 As DataGridTextBoxColumn
tb2 = New DataGridTextBoxColumn
tb2.HeaderText = "Room Description"
tb2.MappingName = "roomdesc"
tb2.NullText = ""
tb2.Width = 350
ts.GridColumnStyles.Add(tb2)
DataGrid1.TableStyles.Add(ts)
So, what would my code look like to do the validating? I am fairly new to
VB.NET and have not created a 'handler' yet. I would appreciate any
information.
Thanks again,
Steve
"jim" <james_matthews_at_shi_dotcom> wrote in message
news:ed**************@TK2MSFTNGP09.phx.gbl...
Hi Steve,
if you create a table style and a subsequent columnstyle for each column
to be displayed in your grid then you can handle the
"myDataGridColumnStyle.TextBox.Validating" event. I believe you could also
handle the myDataGridColumnStyle.TextBox.LostFocus event, but the
validating event may be more appropriate for what you're specifically doing.
I'm handling this in one of my applications and it works nicely. You'll
have to manually add the handler to the control using the AddHandler statement.
i.e.
in form load or wherever it makes sense for you...
\\\
AddHandler myDataGridColumnStyle.TextBox.Validating, AddressOf
myValidatingHandler
///
if you need further details don't hesitate to ask.
jim
"Steve" <sf*****@flintind-remove.com> wrote in message
news:eM**************@tk2msftngp13.phx.gbl... I have a datagrid in a WinForm.
When the user edits an entry in the datagrid, after he leaves that
field, I would like to do some cheking. What event fires when the user does that?
I need to make sure that the value he modified does not create a dup
value in my DB.
Thank you for your help,
Steve