public void AddCustomCommand(IElementAdderMenuCommand <TContext> command)
{
if (command == null)
{
throw new ArgumentNullException(nameof(command));
}
_customCommands.Add(command);
}
/// <summary>
/// Gets an array of <see cref="IElementAdderMenuCommand{TContext}"/> instances
/// that are associated with the specified <paramref name="contractType"/>.
/// </summary>
/// <typeparam name="TContext">Type of the context object that elements can be added to.</typeparam>
/// <param name="contractType">Contract type of addable elements.</param>
/// <returns>
/// An array containing zero or more <see cref="IElementAdderMenuCommand{TContext}"/> instances.
/// </returns>
/// <exception cref="System.ArgumentNullException">
/// If <paramref name="contractType"/> is <c>null</c>.
/// </exception>
/// <seealso cref="GetMenuCommandTypes{TContext}(Type)"/>
public static IElementAdderMenuCommand <TContext>[] GetMenuCommands <TContext>(Type contractType)
{
var commandTypes = GetMenuCommandTypes <TContext>(contractType);
var commands = new IElementAdderMenuCommand <TContext> [commandTypes.Length];
for (int i = 0; i < commandTypes.Length; ++i)
{
commands[i] = (IElementAdderMenuCommand <TContext>)Activator.CreateInstance(commandTypes[i]);
}
return(commands);
}