Windows Phone Hackathon : Bing Map Sample - Code - Button_Go_Click

gistfile1.cs

private void Button_Go_Click(object sender, RoutedEventArgs e)
{
	if (watcher != null)
	{
		watcher.Stop();
	}

	double lat, lon;

	if(!double.TryParse(TextBox_Lat.Text, out lat)) {
		MessageBox.Show(
			"latitude must be number.",
			"invalid number", MessageBoxButton.OK);
		return;
	}
	if (!double.TryParse(TextBox_Lon.Text, out lon)) {
		MessageBox.Show(
			"longitude must be number.", "invalid number",
			MessageBoxButton.OK);
		return;
	}

			if (lat > 90 || lat < -90)
			{
				MessageBox.Show(
					"latitude must be between -90 to 90.", 
					"invalid number", 
					MessageBoxButton.OK);
				return;
			}
			if (lon > 180 || lon < -180)
			{
				MessageBox.Show(
					"longitude must be between -180 to 180.",
					"invalid number",
					MessageBoxButton.OK);
				return;
			}

	GeoCoordinate location = new GeoCoordinate(lat, lon);

	Map_Main.SetView(location, 15);
	PushPin_Main.Location = location;
	PushPin_Main.Visibility = System.Windows.Visibility.Visible;
}