In This tutorial we will cover the Logical Operators in Visual Basic .NET. Similar to the conditional operators, logical operators are used to make a decision using words like “And” and “Or”. Logical operators can help you make a decision based on two or more factors also called conditional checking operators.
Copy and paste below Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If TextBox1.Text = "" Or TextBox2.Text = "" Then
MessageBox.Show("You didn't fill in the fields!")
If TextBox1.Text = "thepassword" And TextBox2.Text = "thesecondpassword" Then