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MessageBox.Show Method (String, String, MessageBoxButtons, MessageBoxIcon, MessageBoxDefaultButton)

.NET Framework 1.1

Displays a message box with the specified text, caption, buttons, icon, and default button.

[Visual Basic]
Overloads Public Shared Function Show( _
   ByVal text As String, _
   ByVal caption As String, _
   ByVal buttons As MessageBoxButtons, _
   ByVal icon As MessageBoxIcon, _
   ByVal defaultButton As MessageBoxDefaultButton _
) As DialogResult
[C#]
public static DialogResult Show(
 string text,
 string caption,
 MessageBoxButtons buttons,
 MessageBoxIcon icon,
 MessageBoxDefaultButton defaultButton
);
[C++]
public: static DialogResult Show(
 String* text,
 String* caption,
 MessageBoxButtons buttons,
 MessageBoxIcon icon,
 MessageBoxDefaultButton defaultButton
);
[JScript]
public static function Show(
   text : String,
 caption : String,
 buttons : MessageBoxButtons,
 icon : MessageBoxIcon,
 defaultButton : MessageBoxDefaultButton
) : DialogResult;

Parameters

text
The text to display in the message box.
caption
The text to display in the title bar of the message box.
buttons
One of the MessageBoxButtons values that specifies which buttons to display in the message box.
icon
One of the MessageBoxIcon values that specifies which icon to display in the message box.
defaultButton
One of the MessageBoxDefaultButton values that specifies the default button for the message box.

Return Value

One of the DialogResult values.

Exceptions

Exception Type Condition
InvalidEnumArgumentException buttons is not a member of MessageBoxButtons.

-or-

icon is not a member of MessageBoxIcon.

-or-

defaultButton is not a member of MessageBoxDefaultButton.

InvalidOperationException An attempt was made to display the MessageBox in a process that is not running in User Interactive mode. This is specified by the SystemInformation.UserInteractive property.

Remarks

You can have a maximum of three buttons on the message box.

Example

[Visual Basic] 
Private Sub ValidateUserEntry3()

    ' Checks the value of the text.

    If ServerName.Text.Length = 0 Then

        ' Initializes variables to pass to the MessageBox.Show method.

        Dim Message As String = "You did not enter a server name. Cancel this operation?"
        Dim Caption As String = "No Server Name Specified"
        Dim Buttons As Integer = MessageBoxButtons.YesNo

        Dim Result As DialogResult

        'Displays a MessageBox using the Question icon and specifying the No button as the default.

        Result = MessageBox.Show(Me, Message, Caption, MessageBoxButtons.YesNo, MessageBoxIcon.Question, _
            MessageBoxDefaultButton.Button1)

        ' Gets the result of the MessageBox display.

        If Result = DialogResult.Yes Then

            ' Closes the parent form.

            Me.Close()

        End If

    End If
End Sub

[C#] 
private void validateUserEntry3()
{

    // Checks the value of the text.

    if(serverName.Text.Length == 0)
    {

        // Initializes the variables to pass to the MessageBox.Show method.

        string message = "You did not enter a server name. Cancel this operation?";
        string caption = "No Server Name Specified";
        MessageBoxButtons buttons = MessageBoxButtons.YesNo;
        DialogResult result;

        // Displays the MessageBox.

        result = MessageBox.Show(this, message, caption, buttons,
        MessageBoxIcon.Question, MessageBoxDefaultButton.Button1);

        if(result == DialogResult.Yes)
        {

            // Closes the parent form.

            this.Close();

        }

    }

}


[C++] 
private:
    void validateUserEntry3() {
        // Checks the value of the text.
        if (serverName->Text->Length == 0) {

            // Initializes the variables to pass to the MessageBox::Show method.
            String* message = S"You did not enter a server name. Cancel this operation?";
            String* caption = S"No Server Name Specified";
            MessageBoxButtons buttons = MessageBoxButtons::YesNo;
            System::Windows::Forms::DialogResult result;

            // Displays the MessageBox.

            result = MessageBox::Show(this, message, caption, buttons,
                MessageBoxIcon::Question, MessageBoxDefaultButton::Button1);

            if (result == DialogResult::Yes) {
                // Closes the parent form.
                this->Close();
            }
        }
    }

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework

.NET Framework Security: 

See Also

MessageBox Class | MessageBox Members | System.Windows.Forms Namespace | MessageBox.Show Overload List | MessageBoxButtons | MessageBoxIcon | MessageBoxDefaultButton

Show: