I just that you want this behavior only at design-time!

It wasn't as easy as I thought first but I found something.

You will need to create a WindowsControlLibrary
that will contain at least this code:

Option Strict On

Public Class UserControl1
    Inherits System.Windows.Forms.TextBox  '.UserControl

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'UserControl1 overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        components = New System.ComponentModel.Container
    End Sub

#End Region

    Protected Overrides Sub OnTextChanged(ByVal e As System.EventArgs)
        If Me.Text.Length = 0 Then
            If Me.DesignMode Then
                Me.Text = Me.Name
            End If
        End If
    End Sub
End Class

Build your control library.

Then from your application, add a references to your control library. Now add a regular textbox to a form and change its type (2 places):

Friend WithEvents TextBox2 As WindowsControlLibrary2.UserControl1 ' System.Windows.Forms.TextBox

It should work as expected.


>What do you mean by "Shadow" the Text property? Any code sample ?
>
>Merci!.
>
>>You will need to inherit the Textbox control and shadow the Text property to set it as the Name when it becomes empty.