C# MessageBox.Show

http://www.dotnetperls.com/messagebox-show

Dialog boxes interrupt users. They force users to respond before further action is taken. This is necessary in some situations. It is useful if a warning is important or an serious error occurred. TheMessageBox.Show method is the easiest way
to display a dialog box. It is available in C# Windows Forms programs.

Examples

To start, the MessageBox.Show method is a static method, which means you do not need to create a new MessageBox() anywhere in your code. Instead, you can simply type "MessageBox" and press the period, and then select Show.

The following example shows the MessageBox.Show method used in the Form1_Load event handler. To make the Form1_Load event handler, create a new Windows Forms application and double-click on the window in the designer.

Windows Forms program that uses MessageBox [C#]

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 WindowsFormsApplication16
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
//
// The simplest overload of MessageBox.Show. [1]
//
MessageBox.Show("Dot Net Perls is awesome.");
//
// Dialog box with text and a title. [2]
//
MessageBox.Show("Dot Net Perls is awesome.",
"Important Message");
//
// Dialog box with two buttons: yes and no. [3]
//
DialogResult result1 = MessageBox.Show("Is Dot Net Perls awesome?",
"Important Question",
MessageBoxButtons.YesNo);
//
// Dialog box with question icon. [4]
//
DialogResult result2 = MessageBox.Show("Is Dot Net Perls awesome?",
"Important Query",
MessageBoxButtons.YesNoCancel,
MessageBoxIcon.Question);
//
// Dialog box with question icon and default button. [5]
//
DialogResult result3 = MessageBox.Show("Is Visual Basic awesome?",
"The Question",
MessageBoxButtons.YesNoCancel,
MessageBoxIcon.Question,
MessageBoxDefaultButton.Button2);
//
// Test the results of the previous three dialogs. [6]
//
if (result1 == DialogResult.Yes &&
result2 == DialogResult.Yes &&
result3 == DialogResult.No)
{
MessageBox.Show("You answered yes, yes and no.");
}
//
// Dialog box that is right-aligned (not useful). [7]
//
MessageBox.Show("Dot Net Perls is the best.",
"Critical Warning",
MessageBoxButtons.OKCancel,
MessageBoxIcon.Warning,
MessageBoxDefaultButton.Button1,
MessageBoxOptions.RightAlign,
true);
//
// Dialog box with exclamation icon. [8]
//
MessageBox.Show("Dot Net Perls is super.",
"Important Note",
MessageBoxButtons.OK,
MessageBoxIcon.Exclamation,
MessageBoxDefaultButton.Button1);
}
}
}

In the F