public Collection <int> PromptForChoice(string caption, string message, Collection <ChoiceDescription> choices, IEnumerable <int> defaultChoices)
{
if (this.externalUI == null)
{
this.ThrowPromptNotInteractive(message);
}
IHostUISupportsMultipleChoiceSelection externalUI = this.externalUI as IHostUISupportsMultipleChoiceSelection;
Collection <int> collection = null;
try
{
if (externalUI == null)
{
return(this.EmulatePromptForMultipleChoice(caption, message, choices, defaultChoices));
}
collection = externalUI.PromptForChoice(caption, message, choices, defaultChoices);
}
catch (PipelineStoppedException)
{
LocalPipeline currentlyRunningPipeline = (LocalPipeline)((RunspaceBase)this.parent.Context.CurrentRunspace).GetCurrentlyRunningPipeline();
if (currentlyRunningPipeline == null)
{
throw;
}
currentlyRunningPipeline.Stopper.Stop();
}
return(collection);
}
public Collection <int> PromptForChoice(
string caption,
string message,
Collection <ChoiceDescription> choices,
IEnumerable <int> defaultChoices)
{
using (InternalHostUserInterface.tracer.TraceMethod())
{
if (this.externalUI == null)
{
this.ThrowNotInteractive();
}
IHostUISupportsMultipleChoiceSelection externalUi = this.externalUI as IHostUISupportsMultipleChoiceSelection;
Collection <int> collection = (Collection <int>)null;
try
{
collection = externalUi != null?externalUi.PromptForChoice(caption, message, choices, defaultChoices) : this.EmulatePromptForMultipleChoice(caption, message, choices, defaultChoices);
}
catch (PipelineStoppedException ex)
{
LocalPipeline currentlyRunningPipeline = (LocalPipeline)this.parent.Context.CurrentRunspace.GetCurrentlyRunningPipeline();
if (currentlyRunningPipeline == null)
{
throw;
}
else
{
currentlyRunningPipeline.Stopper.Stop();
}
}
return(collection);
}
}
/// <summary>
/// Presents a dialog allowing the user to choose options from a set of options.
/// </summary>
/// <param name="caption">
/// Caption to precede or title the prompt. E.g. "Parameters for get-foo (instance 1 of 2)"
/// </param>
/// <param name="message">
/// A message that describes what the choice is for.
/// </param>
/// <param name="choices">
/// An Collection of ChoiceDescription objects that describe each choice.
/// </param>
/// <param name="defaultChoices">
/// The index of the labels in the choices collection element to be presented to the user as
/// the default choice(s).
/// </param>
/// <returns>
/// The indices of the choice elements that corresponds to the options selected.
/// </returns>
/// <seealso cref="System.Management.Automation.Host.PSHostUserInterface.PromptForChoice"/>
public Collection <int> PromptForChoice(string caption,
string message,
Collection <ChoiceDescription> choices,
IEnumerable <int> defaultChoices)
{
if (_externalUI == null)
{
ThrowPromptNotInteractive(message);
}
IHostUISupportsMultipleChoiceSelection hostForMultipleChoices =
_externalUI as IHostUISupportsMultipleChoiceSelection;
Collection <int> result = null;
try
{
if (hostForMultipleChoices == null)
{
// host did not implement this new interface..
// so work with V1 host API to get the behavior..
// this will allow Hosts that were developed with
// V1 API to interact with PowerShell V2.
result = EmulatePromptForMultipleChoice(caption, message, choices, defaultChoices);
}
else
{
result = hostForMultipleChoices.PromptForChoice(caption, message, choices, defaultChoices);
}
}
catch (PipelineStoppedException)
{
// PipelineStoppedException is thrown by host when it wants
// to stop the pipeline.
LocalPipeline lpl = (LocalPipeline)((RunspaceBase)_parent.Context.CurrentRunspace).GetCurrentlyRunningPipeline();
if (lpl == null)
{
throw;
}
lpl.Stopper.Stop();
}
return(result);
}
