public int ReadChoice(string caption, string message, IList <ChoiceItem> choices, int defaultChoice)
{
if (string.IsNullOrEmpty(caption))
{
caption = ResourceStrings.PromptForChoice_DefaultCaption;
}
if (message == null)
{
message = string.Empty;
}
if (choices == null)
{
throw new ArgumentNullException("choices");
}
if (!choices.Any())
{
throw new ArgumentException(string.Format(ResourceStrings.ChoicesCollectionShouldHaveAtLeastOneElement, "choices"), "choices");
}
foreach (var c in choices)
{
if (c == null)
{
throw new ArgumentNullException("choices");
}
}
if (defaultChoice < -1 || defaultChoice >= choices.Count)
{
throw new ArgumentOutOfRangeException("defaultChoice");
}
int choice = -1;
ThreadHelper.Generic.Invoke(() =>
{
ReadHostPromptForChoicesViewModel viewModel = new ReadHostPromptForChoicesViewModel(caption, message, choices, defaultChoice);
ReadHostPromptForChoicesView dialog = new ReadHostPromptForChoicesView(viewModel);
NativeMethods.SetForegroundWindow();
var ret = dialog.ShowModal();
if (ret == true)
{
choice = viewModel.UserChoice;
}
});
return(choice);
}
public void ShouldInitializeViewModelCorrectly()
{
ReadHostPromptForChoicesViewModel viewModel = new ReadHostPromptForChoicesViewModel(
"Caption",
"Message",
new ChoiceItem[] {
new ChoiceItem("Label_Apple", "This is an Apple"),
new ChoiceItem("Label_Banana", "This is a banana"),
new ChoiceItem("Label_Orange", "This is an orange")
},
1);
Assert.AreEqual <string>("Caption", viewModel.Caption);
Assert.AreEqual <string>("Message", viewModel.Message);
Assert.AreEqual <bool>(false, viewModel.Choices[0].IsDefault);
Assert.AreEqual <bool>(true, viewModel.Choices[1].IsDefault);
Assert.AreEqual <bool>(false, viewModel.Choices[2].IsDefault);
}
public void ShouldExecuteCommandCorrectly()
{
ReadHostPromptForChoicesViewModel viewModel = new ReadHostPromptForChoicesViewModel(
"Caption",
"Message",
new ChoiceItem[] {
new ChoiceItem("Label_Apple", "This is an Apple"),
new ChoiceItem("Label_Banana", "This is a banana"),
new ChoiceItem("Label_Orange", "This is an orange")
},
1);
Assert.AreEqual <bool>(false, viewModel.Choices[0].IsDefault);
Assert.AreEqual <bool>(true, viewModel.Choices[1].IsDefault);
Assert.AreEqual <bool>(false, viewModel.Choices[2].IsDefault);
viewModel.Command.Execute("Label_Orange");
Assert.AreEqual <int>(2, viewModel.UserChoice);
}
