public int OnPromptForChoice(PromptForChoiceEventArgs e)
{
EventHandler <PromptForChoiceEventArgs> handler = PromptForChoice;
if (handler != null)
{
handler(this, e);
return(e.SelectedIndex);
}
// Write the caption and message strings in Blue.
Write(ConsoleColor.Blue, ConsoleColor.Black, e.Caption + "\n" + e.Message + "\n");
// Convert the choice collection into something that's a little easier to work with
// See the BuildHotkeysAndPlainLabels method for details.
var promptData = BuildHotkeysAndPlainLabels(e.Choices, true);
// Loop reading prompts until a match is made, the default is
// chosen or the loop is interrupted with ctrl-C.
while (true)
{
// Format the overall choice prompt string to display...
for (var element = 0; element < promptData.GetLength(1); element++)
{
if (element == e.SelectedIndex)
{
Write(ConsoleBrushes.VerboseForeground, ConsoleBrushes.VerboseBackground,
$"[{promptData[0, element]}] {promptData[1, element]} ");
}
else
{
Write(null, null, $"[{promptData[0, element]}] {promptData[1, element]} ");
}
}
Write(null, null, $"(default is \"{promptData[0, e.SelectedIndex]}\"):");
string data = ReadLine().Trim().ToUpper();
// If the choice string was empty, use the default selection.
if (data.Length == 0)
{
return(e.SelectedIndex);
}
// See if the selection matched and return the
// corresponding index if it did...
for (var i = 0; i < e.Choices.Count; i++)
{
if (promptData[0, i][0] == data[0])
{
return(i);
}
}
// If they picked the very last thing in the list, they want help
if (promptData.GetLength(1) > e.Choices.Count && promptData[0, e.Choices.Count] == data)
{
// Show help
foreach (var choice in e.Choices)
{
Write($"{choice.Label.Replace("&", "")} - {choice.HelpMessage}\n");
}
}
else
{
Write(ConsoleBrushes.ErrorForeground, ConsoleBrushes.ErrorBackground, "Invalid choice: " + data + "\n");
}
}
}
private void Console_PromptForChoice(object sender, PromptForChoiceEventArgs e)
{
// Ensure this is invoked synchronously on the UI thread
if (!Dispatcher.CheckAccess())
{
Dispatcher.Invoke(DispatcherPriority.Render, (Action)(() =>
{
Console_PromptForChoice(sender, e);
}));
return;
}
// Disable the console ...
PoshConsole.CommandBox.IsEnabled = false;
#region PromptForChoiceWindowCouldBeInXaml
// Create a window with a stack panel inside
var content = new Grid {
Margin = new Thickness(6)
};
content.RowDefinitions.Add(new RowDefinition {
Height = new GridLength(50)
});
content.RowDefinitions.Add(new RowDefinition {
Height = GridLength.Auto
});
var buttons = new StackPanel {
Orientation = Orientation.Horizontal, HorizontalAlignment = HorizontalAlignment.Right
};
content.Children.Add(buttons);
buttons.SetValue(Grid.RowProperty, 1);
var dialog = new Window
{
SizeToContent = SizeToContent.WidthAndHeight,
HorizontalContentAlignment = HorizontalAlignment.Stretch,
VerticalContentAlignment = VerticalAlignment.Stretch,
Title = e.Caption,
Content = content,
MinHeight = 100,
MinWidth = 300,
WindowStartupLocation = WindowStartupLocation.CenterOwner,
Owner = this,
Tag = -1 // We must initialize the tag
};
// Make buttons for each choice
var index = 0;
foreach (var choice in e.Choices)
{
var item = new Button
{
Content = choice.Label.Replace('&', '_'),
ToolTip = choice.HelpMessage,
IsDefault = e.SelectedIndex == index,
Padding = new Thickness(10, 4, 10, 4),
Margin = new Thickness(4),
Tag = index // set the button Tag to it's index
};
// when the button is clicked, set the window tag to the button's index, and close the window.
item.Click += (o, args) =>
{
dialog.Tag = (args.OriginalSource as FrameworkElement)?.Tag;
dialog.Close();
};
buttons.Children.Add(item);
index++;
}
// Handle the Caption and Message
if (string.IsNullOrWhiteSpace(e.Caption))
{
e.Caption = e.Message;
}
if (!string.IsNullOrWhiteSpace(e.Message))
{
content.Children.Insert(0, new TextBlock
{
Text = e.Message,
FontSize = 16,
FontWeight = FontWeight.FromOpenTypeWeight(700),
Effect = new System.Windows.Media.Effects.DropShadowEffect
{
Color = Colors.CadetBlue,
Direction = 0,
ShadowDepth = 0,
BlurRadius = 5
}
});
}
#endregion CouldBeInXaml
dialog.ShowDialog();
e.SelectedIndex = (int)dialog.Tag;
// Reenable the console
PoshConsole.CommandBox.IsEnabled = true;
}
