How to show error message in c# windows application | How to show Error & Warning Message Box in .NET

When ever we create a windows application on that case in some places we needed to restrict user for entering some value or need to display error message box with error icon and ok button. So in this article i will show you how you can display a error message box in windows application using c# and VB.Net
If you are using try catch block on that case also you can use this message box to display the message box.

Some of my previous articles are as follows:

How to implement windows authentication in asp.net mvc , How to create a Xml Document Programmatically Using C#.Net .

You may also lie some eBooks to download: Free eBook - Professional ASP.NET 4 in C# and VB , Professional ASP.NET 4.5 in C# and VB - Free download eBooks .

so here is the code for this article.

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; namespace ErrorMesssage {     public partial class Form1 : Form     {         public Form1()         {             InitializeComponent();         }         private void btnerror_Click(object sender, EventArgs e)         {             //Suppose we have error message "Sorry Please enter number only             MessageBox.Show("Sorry Please enter number only", "Error Message", MessageBoxButtons.OK, MessageBoxIcon.Error);         }     } }

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 Namespace ErrorMesssage     Partial Public Class Form1         Inherits Form         Public Sub New()             InitializeComponent()         End Sub         Private Sub btnerror_Click(ByVal sender As Object, ByVal e As EventArgs)             'Suppose we have error message "Sorry Please enter number only             MessageBox.Show("Sorry Please enter number only", "Error Message", MessageBoxButtons.OK, MessageBoxIcon.[Error])         End Sub     End Class End Namespace

Now run the demo for output

now click on button to display the message.