How to Use MessageBox.Show Method in C#

MessageBox.Show():

 

MessageBox is a class and Show is a function that displays a message in a small window in the center of the Form.

 

MessageBox is used to provide confirmations of a task being done or to provide warnings before a task is done.

 

Example

 

 
Figure 1 Windows Form

 

Figure 2 Code Snippet

 

OUTPUT

 
Figure 3 Showing the output

 

Note

By default the OK Button will be shown.

 

Figure 4 Second and third argument MessageBoxIcon  
 

Figure 5 Fourth argument specifies MessageBoxIcon

 

Dialog Result

 

DialogResult is an enumeration of the possible return values of a dialog box including a MessageBox.

 

 
Figure 6 Design phase

 

Form1.cs

private void button1_Click(object sender, EventArgs e)
       {
           DialogResult d;
          d=MessageBox.Show("Welcome to C# Corner","Learn C#",MessageBoxButtons.YesNo,MessageBoxIcon.Information);
           if(d==DialogResult.Yes)
           {
               Close();
           }
       }

 OUTPUT

 

 
Figure 7 Final output

 

Thank you.