/// <summary>
/// Launch the user interface for developer to pick a contract type.
/// </summary>
/// <param name="localAssemblyName">The local assembly name.</param>
/// <param name="referencedAssemblies">The list of referenced assembly names.</param>
/// <param name="editingContext">The editing context.</param>
/// <returns>The contract type selected by user or null if user cancels.</returns>
public static Type SelectContractType(AssemblyName localAssemblyName, IList <AssemblyName> referencedAssemblies, EditingContext editingContext)
{
AssemblyContextControlItem assemblyContextControlItem = new AssemblyContextControlItem {
LocalAssemblyName = localAssemblyName, ReferencedAssemblyNames = referencedAssemblies
};
TypeBrowser typeBrowser = new TypeBrowser(assemblyContextControlItem, editingContext, FilterFunction);
bool? dialogResult = typeBrowser.ShowDialog(/* owner = */ null);
if (dialogResult.HasValue && dialogResult.Value)
{
return(typeBrowser.ConcreteType);
}
else
{
return(null);
}
}
/// <summary>
/// Retrieves and returns the selected type from the user.
/// </summary>
/// <param name="selectedType">The type to select in the type selection dialog.</param>
/// <param name="baseType">The base type (class or interface) from which the constrained type should derive.</param>
/// <param name="selectorIncludes">Indicates the types that can be browsed.</param>
/// <param name="configurationType">The base type from which a type specified by the
/// <see cref="Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ConfigurationElementTypeAttribute"/>
/// bound to the constrained type should derive, or <see langword="null"/> if no such constraint is necessary.
/// </param>
/// <returns>
/// The selected <see cref="Type"/> or <see langword="null"/> if not type is selected.
/// </returns>
protected virtual Type GetSelectedType(Type selectedType, Type baseType, TypeSelectorIncludes selectorIncludes, Type configurationType)
{
var viewModel = new TypeBrowserViewModel(new TypeBuildNodeConstraint(baseType, configurationType, selectorIncludes), this);
var selector = new TypeBrowser(viewModel, this.discoveryService);
Nullable <bool> result = false;
if (this.UIService != null)
{
result = UIService.ShowDialog(selector);
}
else
{
result = selector.ShowDialog();
}
if (result.HasValue && result.Value)
{
return(selector.SelectedType);
}
return(null);
}