Check for empty TextBox controls in VB.NET

Question

Ive got a Form application in VB.NET.

I have many text boxes on one form (about 20). Is there anyway to check them all at once to see if they are empty instead of wr

Answer 1

A very simplistic approach would be to gather all the TextBox controls in a sequence using the Enumerable.OfType LINQ method and then iterate through it in a For Each loop:

Dim textBoxes = Me.Controls.OfType(Of TextBox);

For Each t In textBoxes
   If String.IsNullOrEmpty(t.Text) Then
       MsgBox("...")
       Exit For
   End If
Next t