Click here to Skip to main content
15,867,704 members
Articles / Desktop Programming / WPF

Building WPF Applications with Self-Tracking Entity Generator - Project Setup

Rate me:
Please Sign up or sign in to vote.
4.80/5 (11 votes)
20 Feb 2012CPOL10 min read 75K   4.8K   54  
This article describes the project setup of building a WPF sample application with Self-Tracking Entity Generator for WPF/Silverlight.
// -----------------------------------------------------------------------
// Copyright (c) Microsoft Corporation.  All rights reserved.
// -----------------------------------------------------------------------
using System;
using System.ComponentModel.Composition.Hosting;
using System.ComponentModel.Composition.Primitives;
using System.Globalization;
using System.Linq;
using System.Reflection;

namespace System.ComponentModel.Composition
{
    public static partial class CompositionInitializer
    {
        /// <summary>
        ///     Will satisfy the imports on a object instance based on a <see cref="CompositionContainer"/>
        ///     registered with the <see cref="CompositionHost"/>. By default if no <see cref="CompositionContainer"/>
        ///     is registered the first time this is called it will be initialized to a catalog
        ///     that contains all the assemblies loaded by the initial application XAP.
        /// </summary>
        /// <param name="attributedPart">
        ///     Object instance that contains <see cref="ImportAttribute"/>s that need to be satisfied.
        /// </param>
        /// <exception cref="ArgumentNullException">
        ///     <paramref name="instance"/> is <see langword="null"/>.
        /// </exception>
        /// <exception cref="ArgumentException">
        ///     <paramref name="instance"/> contains <see cref="ExportAttribute"/>s applied on its type.
        /// </exception>
        /// <exception cref="ChangeRejectedException">
        ///     One or more of the imports on the object instance could not be satisfied.
        /// </exception>
        /// <exception cref="CompositionException">
        ///     One or more of the imports on the object instance caused an error while composing.
        /// </exception>
        public static void SatisfyImports(object attributedPart)
        {
            if (attributedPart == null)
            {
                throw new ArgumentNullException("attributedPart");
            }
            ComposablePart part = AttributedModelServices.CreatePart(attributedPart);
            CompositionInitializer.SatisfyImports(part);
        }


        /// <summary>
        ///     Will satisfy the imports on a part based on a <see cref="CompositionContainer"/>
        ///     registered with the <see cref="CompositionHost"/>. By default if no <see cref="CompositionContainer"/>
        ///     is registered the first time this is called it will be initialized to a catalog
        ///     that contains all the assemblies loaded by the initial application XAP.
        /// </summary>
        /// <param name="part">
        ///     Part with imports that need to be satisfied.
        /// </param>
        /// <exception cref="ArgumentNullException">
        ///     <paramref name="instance"/> is <see langword="null"/>.
        /// </exception>
        /// <exception cref="ArgumentException">
        ///     <paramref name="instance"/> contains <see cref="ExportAttribute"/>s applied on its type.
        /// </exception>
        /// <exception cref="ChangeRejectedException">
        ///     One or more of the imports on the object instance could not be satisfied.
        /// </exception>
        /// <exception cref="CompositionException">
        ///     One or more of the imports on the object instance caused an error while composing.
        /// </exception>
        public static void SatisfyImports(ComposablePart part)
        {
            if (part == null)
            {
                throw new ArgumentNullException("part");
            }

            var batch = new CompositionBatch();

            batch.AddPart(part);

            if (part.ExportDefinitions.Any())
            {
                throw new ArgumentException(string.Format(CultureInfo.CurrentCulture,
                        Strings.ArgumentException_TypeHasExports, part.ToString()), "part");
            }

            CompositionContainer container = null;

            // Ignoring return value because we don't need to know if we created it or not
            CompositionHost.TryGetOrCreateContainer(_createContainer, out container);

            container.Compose(batch);
        }

        private static Func<CompositionContainer> _createContainer = CreateCompositionContainer;
        private static CompositionContainer CreateCompositionContainer()
        {
            var aggCatalog = GetCatalog();

            return new CompositionContainer(aggCatalog);
        }
    }
}

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer (Senior)
United States United States
Weidong has been an information system professional since 1990. He has a Master's degree in Computer Science, and is currently a MCSD .NET

Comments and Discussions