I'd like to know how to create a Class to change each textbox BackColor inside a Form. To be more Specific:
At the moment, I'm doing it this way.
Private Sub tb_Login_Enter(sender As Object, e As EventArgs) Handles tb_Login.Enter
tb_Login.BackColor = Color.LightCyan
End Sub
Private Sub tb_Login_Leave(sender As Object, e As EventArgs) Handles tb_Login.Leave
If tb_Login.Text <> "" Then
tb_Login.BackColor = Color.LightGreen
Else
tb_Login.BackColor = Color.White
End If
But, I have many TextBox in my from, so, how can I create a Class for it?
Thanks
You can create a class that has a collection of textbox controls. You can get this collection going through the Controls property of your Form or user control and verifying the type of the control. Internally the class must subscribe to the events you've listed, of the textbox controls collection. Finally, on the methods that handle the events you must write the logic that change the color accordingly. Remember that the handle events methods have the control that triggered the event on the first parameter.
I can go into more detail if you have more doubts.