MessageBoxButtonsYesNo

MessageBoxButtonsYesNo refers to the YesNo option of the MessageBoxButtons enumeration used in Windows Forms to configure the buttons displayed by a message box. It is part of the System.Windows.Forms namespace and is used when calling MessageBox.Show to present Yes and No choices to the user.

Usage. To display a message box with Yes and No buttons, you pass MessageBoxButtons.YesNo to MessageBox.Show, for example: MessageBox.Show("Continue?", "Confirm", MessageBoxButtons.YesNo). The user's response is returned as a DialogResult value, which you can test in code.

Return values. If the user selects Yes, the result is DialogResult.Yes; if they select No, the result is DialogResult.No. If the user closes the dialog without choosing a button, the result is DialogResult.None. The YesNo option does not include a Cancel button on its own; Cancel is available in combinations such as YesNoCancel.

Relation to other options. YesNo is one of several button configurations available in the MessageBoxButtons enumeration. Other options include OK, OKCancel, YesNoCancel, and RetryCancel. The choice determines which actions are presented to the user and what DialogResult values you should expect.

Notes. The text displayed on the buttons is provided by the operating system’s localization. The default button can be configured through an overload of MessageBox.Show that accepts a MessageBoxDefaultButton value, allowing you to specify which option is focused by default.