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Saturday, 24 May 2014

How to show Error & Warning Message Box in .NET | C# MessageBox.Show Examples

5/24/2014 - By Pranav Singh 0

A MessageBox is a predefined dialog box that displays application-related information to the user. Message boxes are also used to request information from the user.

In this article i will show you how you can display the error message and warning message in windows application using C#.net and VB.Net.


So for this article first create a new windowsapplication.  Now add the two button one for displaying the error message and other for displaying the warning message.

C#.Net
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Collections;

namespace ProjectDemo_Windows
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();          
        }

        private void button1_Click_1(object sender, EventArgs e)
        {
            MessageBox.Show("This is an error message.", "Error..", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }

        private void button2_Click(object sender, EventArgs e)
        {
            MessageBox.Show("This is a warning message.", "Warning..", MessageBoxButtons.OK, MessageBoxIcon.Warning);
        }
    }
}

VB.Net
Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Linq
Imports System.Text
Imports System.Windows.Forms
Imports System.Collections

Namespace ProjectDemo_Windows
    Partial Public Class Form1
        Inherits Form
        Public Sub New()
            InitializeComponent()
        End Sub

        Private Sub button1_Click_1(ByVal sender As Object, ByVal e As EventArgs)
            MessageBox.Show("This is an error message.", "Error..", MessageBoxButtons.OK, MessageBoxIcon.[Error])
        End Sub

        Private Sub button2_Click(ByVal sender As Object, ByVal e As EventArgs)
            MessageBox.Show("This is a warning message.", "Warning..", MessageBoxButtons.OK, MessageBoxIcon.Warning)
        End Sub
    End Class
End Namespace

Now run the application

Error message


Warning Message



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