Turn off default sound when displaying MessageBox in WP7

Is there a way to turn off the sound that the Messagebox plays when it 开发者_高级运维is displayed in WP7?

---

There's no way to change this behaviour with the Silverlight MessageBox class. If, however, you use Guide.BeginShowMessageBox (from the XNA libraries) you can control whether sounds are played or not.

---

No, currently there is no way you can disable the sound that is triggered by the MessageBox class. That is a feature tied to the system and unless the device is on mute, the sound will be played.

With XNA's async version you can do this, though (as mentioned by Matt):

Guide.BeginShowMessageBox("Title", "Text", new List<string>() { "OK" }, 0, MessageBoxIcon.None, new AsyncCallback(YourCallback), null);

Here, MessageBoxIcon defines the sound and not the icon (which is nonexistent on Windows Phone for a MessageBox).

Note: you need yo add a reference to Microsoft.Xna.Framework.GamerServices.