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

Public Class freestyle

Private Sub TextBox3_TextChanged(sender As Object, e As EventArgs) Handles TextBox3.TextChanged
    If Trim(TextBox3.Text) = "" And Me.Visible Then
        MsgBox("fill in the textbox")
        TextBox3.BackColor = Color.Yellow


    Else
        ' MsgBox("great one !!!")

    End If
End Sub

Private Sub TextBox2_TextChanged(sender As Object, e As EventArgs) Handles TextBox2.TextChanged
    If Trim(TextBox2.Text) = "" And Me.Visible Then
        MsgBox("fill in the textbox")
        TextBox2.BackColor = Color.Yellow


    Else
        'MsgBox("great one !!!")

    End If
End Sub

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click



    If Trim(TextBox1.Text) = "" Or Trim(TextBox2.Text) = "" Or Trim(TextBox3.Text) = "" And Me.Visible Then
        MsgBox("Please fill the necesary", MsgBoxStyle.Critical, "Error")
        TextBox1.Focus()

    Else
        MsgBox("Nice Work !!!")
    End If

End Sub

Private Sub TextBox1_Leave(sender As Object, e As EventArgs) Handles TextBox1.Leave
    If Trim(TextBox1.Text) = "" And Me.Visible Then
        MsgBox("fill in the textbox")
        TextBox1.BackColor = Color.Yellow


    Else
        ' MsgBox("great one !!!")

    End If
End Sub

End Class