How to disable editing of elements in combobox for c#?

Mobin_72014 0
Viewed 168694

I have some elements in a ComboBox (WinForms with C#). I want their content to be static so that a user cannot change the values inside when the application is ran. I also do not want the user adding new values to the ComboBox

combobox winforms c#
4 Answers

Use the ComboStyle property:

comboBox.DropDownStyle = ComboBoxStyle.DropDownList;
Dan_Walker_7520

I tried ComboBox1_KeyPress but it allows to delete the character & you can also use copy paste command. My DropDownStyle is set to DropDownList but still no use. So I did below step to avoid combobox text editing.

  • Below code handles delete & backspace key. And also disables combination with control key (e.g. ctr+C or ctr+X)

     Private Sub CmbxInType_KeyDown(sender As Object, e As KeyEventArgs) Handles CmbxInType.KeyDown
    If e.KeyCode = Keys.Delete Or e.KeyCode = Keys.Back Then 
        e.SuppressKeyPress = True
    End If

    If Not (e.Control AndAlso e.KeyCode = Keys.C) Then
        e.SuppressKeyPress = True
    End If
End Sub

  • In form load use below line to disable right click on combobox control to avoid cut/paste via mouse click.

    CmbxInType.ContextMenu = new ContextMenu()
user_50023290
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