How can i catch a return key from datagridtextboxcolumn

[intibnin]

Hi,
Please I need help.
I created a form that allows me searching customers by name. after display customers list in datagrid, i want allow user to select one customer by pressing return key (chr(13)).
for grid setup, i tried the following code :

'Configuration de la grille
Private Sub DataGridSetup()
Dim ts As New DataGridTableStyle()
Dim cs As New DataGridTextBoxColumn()
AddHandler cs.TextBox.KeyPress, AddressOf CellKeyPress

DataGrid1.CaptionText = "Résultat"
ts.MappingName = "mycli"
cs.MappingName = "c_cli"
cs.HeaderText = "Code"
cs.Alignment = HorizontalAlignment.Center
ts.GridColumnStyles.Add(cs)
cs = New DataGridTextBoxColumn()
cs.MappingName = "N_cli"
cs.HeaderText = "Nom/Raison sociale"
ts.GridColumnStyles.Add(cs)
DataGrid1.TableStyles.Clear()
DataGrid1.TableStyles.Add(ts)
End Sub

and i added handler to datagridtextboxcolumn, for detecting the keypress events as follows :

'Ajout d'un évènement aux cellules
Public Sub CellKeyPress(ByVal Sender As Object, ByVal e As KeyPressEventArgs)
Dim dt As DataTable = ds.Tables("mycli")
Dim p As Integer
CodeClient = Space(11)
If e.KeyChar = Chr(13) Then
p = Me.BindingContext(ds, "mycli").Position
CodeClient = dt.Rows(p)("c_cli")
Me.Close()
End If

End Sub

So after writing this code, i can select one customer only after pressing SHIFT+RETURN.

please can you explain me way i must first press
SHIFT.

Thank you very match.

Intibnin...

[Administrator]

I think that the grid must be catching the enter key and not passing it onto the embedded textbox control.

You can catch this enter key without using columnstyles by deriving the DataGrid and overriding ProcessKeyPreview.

Public Class MyDataGrid
	Inherits DataGrid
    
	Private Const WM_KEYDOWN As Integer = &H100
	Private Const WM_KEYUP As Integer = &H101
    
    
	Protected Overrides Function ProcessKeyPreview(ByRef m As System.Windows.Forms.Message) As Boolean
		Dim keyCode As Keys = CType(m.WParam.ToInt32(), Keys) And Keys.KeyCode
		If m.Msg = WM_KEYDOWN OrElse m.Msg = WM_KEYUP AndAlso keyCode = Keys.Enter Then
			Console.WriteLine("grid Keys.Enter")
			' return false; 'ignore
		End If 
		Return True
	End Function 'ProcessKeyPreview
End Class 'MyDataGrid