handle reply from message box c#

Question

how can I handle message box reply example if the user click on yes do something if the user click on NO do another thing ?

Answer 1

Example (slightly modified) from the docs:

const string message =
    "Are you sure that you would like to close the form?";
const string caption = "Form Closing";
var result = MessageBox.Show(message, caption,
                             MessageBoxButtons.YesNo,
                             MessageBoxIcon.Question);

// If the no button was pressed ...
if (result == DialogResult.No)
{
    //Do something for No
} 
else if (result == DialogResult.Yes) 
{
    //Do something else for Yes
}

Addendum: In the event that you're still on .NET 2.0 and don't have access to the var keyword, declare result as a DialogResult. I.e:

DialogResult result = MessageBox.Show(...);

---

Missed the fact that this was tagged with WPF, so if you're using that then you'd be using the slightly (but not too much) different System.Windows.MessageBox class instead of System.Windows.Forms.Messagebox. The interaction is largely the same, but also uses the MessageBoxResult enum instead of DialogResult, the MessageBoxImage enum instead of MessageBoxIcon, and the MessageBoxButton enum instead of MessageBoxButtons (plural). You should be able to do something like this:

const string message =
        "Are you sure that you would like to close the form?";
const string caption = "Form Closing";
MessageBoxResult result = MessageBox.Show(message, caption,
                                 MessageBoxButton.YesNo,
                                 MessageBoxImage.Question);

if (result == MessageBoxResult.No)
{
    // Do something for No
}
else if (result == MessageBoxResult.Yes)
{
    // Do something else for Yes
}