private void BuildMessageBox(
string messageBoxText,
string caption,
MessageBoxServiceButton button,
List<string> customLabels)
{
var rootVisual = this.FindRootVisual();
if (null != rootVisual)
{
var bgColor = (Color)Application.Current.Resources["PhoneBackgroundColor"];
var overlayColor = Color.FromArgb(127, bgColor.R, bgColor.G, bgColor.B);
var fgColor = (Color)Application.Current.Resources["PhoneForegroundColor"];
var opacityColor = Color.FromArgb(200, bgColor.R, bgColor.G, bgColor.B);
this._rootElement = new Grid { Background = new SolidColorBrush(overlayColor) };
this._rootElement.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
this._rootElement.RowDefinitions.Add(new RowDefinition { Height = new GridLength(1, GridUnitType.Star) });
this._mbsRoot = new Grid
{
Background = new SolidColorBrush(overlayColor),
Projection = new PlaneProjection()
};
this._mbsRoot.ColumnDefinitions.Add(
new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
this._mbsRoot.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
this._mbsRoot.RowDefinitions.Add(new RowDefinition { Height = GridLength.Auto });
this._rootElement.Children.Add(this._mbsRoot);
// Make sure that our grid spans all rows and columns of it's parent, if the
// parent is a Grid.
if (rootVisual is Grid)
{
var parent = (Grid)rootVisual;
int columnCount = parent.ColumnDefinitions.Count;
if (columnCount > 0)
{
this._rootElement.SetValue(Grid.ColumnSpanProperty, columnCount);
}
int rowCount = parent.RowDefinitions.Count;
if (rowCount > 0)
{
this._rootElement.SetValue(Grid.RowSpanProperty, rowCount);
}
}
Border background = new Border { Background = new SolidColorBrush(fgColor) };
background.SetValue(Grid.ColumnSpanProperty, 2);
background.SetValue(Grid.RowSpanProperty, 2);
this._mbsRoot.Children.Add(background);
Border opaqueOverlay = new Border { Background = new SolidColorBrush(opacityColor) };
opaqueOverlay.SetValue(Grid.ColumnSpanProperty, 2);
opaqueOverlay.SetValue(Grid.RowSpanProperty, 2);
this._mbsRoot.Children.Add(opaqueOverlay);
// Add the caption.
StackPanel container = new StackPanel { Margin = new Thickness(12, 0, 12, 12) };
container.SetValue(Grid.ColumnSpanProperty, 2);
TextBlock title = new TextBlock
{
FontFamily = new FontFamily("Segoe WP Semibold"),
FontSize = 32,
Margin = new Thickness(12),
Text = caption,
TextWrapping = TextWrapping.Wrap
};
title.SetValue(TextOptions.TextHintingModeProperty, TextHintingMode.Animated);
container.Children.Add(title);
// Add the message text.
TextBlock message = new TextBlock
{
FontSize = 24,
Margin = new Thickness(12, 0, 12, 0),
Text = messageBoxText,
TextWrapping = TextWrapping.Wrap
};
container.Children.Add(message);
this._mbsRoot.Children.Add(container);
rootVisual.Children.Add(this._rootElement);
// Add the required buttons.
switch (button)
{
case MessageBoxServiceButton.OK:
this.CreateOKButton(
null == customLabels ? MessageBoxServiceStrings.OK : customLabels[0],
2);
container.SetValue(Grid.ColumnSpanProperty, 1);
break;
case MessageBoxServiceButton.OKCancel:
this._mbsRoot.ColumnDefinitions.Add(
new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
this.CreateOKButton(
null == customLabels ? MessageBoxServiceStrings.OK : customLabels[0]);
this.CreateCancelButton(
null == customLabels ? MessageBoxServiceStrings.Cancel : customLabels[1],
1);
break;
case MessageBoxServiceButton.YesNoCancel:
this._mbsRoot.ColumnDefinitions.Add(
new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
this._mbsRoot.ColumnDefinitions.Add(
new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
background.SetValue(Grid.ColumnSpanProperty, 3);
opaqueOverlay.SetValue(Grid.ColumnSpanProperty, 3);
container.SetValue(Grid.ColumnSpanProperty, 3);
this.CreateYesButton(
null == customLabels ? MessageBoxServiceStrings.Yes : customLabels[0]);
this.CreateNoButton(
null == customLabels ? MessageBoxServiceStrings.No : customLabels[1],
3);
this.CreateCancelButton(
null == customLabels ? MessageBoxServiceStrings.Cancel : customLabels[2],
2);
break;
case MessageBoxServiceButton.YesNo:
this._mbsRoot.ColumnDefinitions.Add(
new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
this.CreateYesButton(
null == customLabels ? MessageBoxServiceStrings.Yes : customLabels[0]);
this.CreateNoButton(
null == customLabels ? MessageBoxServiceStrings.No : customLabels[1]);
break;
default:
// Not possible to hit this.
break;
}
// Update and start the storyboard to show the message box.
foreach (var timeline in this._showStoryboard.Children)
{
Storyboard.SetTarget(timeline, this._mbsRoot);
}
// Once the elements are ready, start the storyboard to show them.
this._mbsRoot.InvokeOnLayoutUpdated(() =>
{
this._showStoryboard.Begin();
});
}
}
/// <summary>
/// Displays a message box that contains the specified text, title bar caption, and
/// response buttons.
/// </summary>
/// <param name="messageBoxText">The message to display.</param>
/// <param name="caption">The title of the message box.</param>
/// <param name="button">A value that indicates the button or buttons to display.</param>
/// <param name="customLabels">A list of custom labels in the same order as the buttons to be displayed.</param>
/// <exception cref="ArgumentNullException">The <b>messageBoxText</b> or <b>caption</b>
/// parameter is null.</exception>
/// <exception cref="ArgumentException">The <b>button</b> parameter is not a valid
/// <see cref="MessageBoxServiceButton"/> value.</exception>
/// <remarks>Handle the <see cref="MessageBoxService.Closed"/> event to determine which
/// button the user tapped.</remarks>
public void Show(
string messageBoxText,
string caption = "",
MessageBoxServiceButton button = MessageBoxServiceButton.OK,
List<string> customLabels = null)
{
if (null == messageBoxText)
{
throw new ArgumentNullException("messageBoxText");
}
if (null == caption)
{
throw new ArgumentNullException("caption");
}
if (((int)button < (int)MessageBoxServiceButton.OK) ||
((int)button > (int)MessageBoxServiceButton.YesNo))
{
throw new ArgumentException(
"The button property must be a valid value of the MesageBoxServiceButton enumeration",
"button");
}
// Reset the result.
this.Result = MessageBoxResult.None;
// Hide the application bar if it's currently visible.
if ((null != this.CurrentPage) &&
(null != this.CurrentPage.ApplicationBar))
{
this._appBarIsVisible = this.CurrentPage.ApplicationBar.IsVisible;
this.CurrentPage.ApplicationBar.IsVisible = false;
}
// Hook up the BackKeyPress to close the message box.
if (null != this.CurrentPage)
{
this.CurrentPage.BackKeyPress += this.OnBackKeyPress;
}
// Build the message box and start the show storyboard.
this.BuildMessageBox(messageBoxText, caption, button, customLabels);
this.IsOpen = true;
}
