AssemblyContextControlItem.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / Tools / System.Activities.Presentation / System / Activities / Presentation / View / AssemblyContextControlItem.cs / 1305376 / AssemblyContextControlItem.cs
                        

                        
                            //---------------------------------------------------------------- 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//---------------------------------------------------------------
namespace System.Activities.Presentation.Hosting
{ 
    using System;
    using System.Collections.Generic; 
    using System.Reflection; 
    using System.Runtime;
    using System.Diagnostics.CodeAnalysis; 
    using System.Activities.Presentation.Hosting;
    using System.IO;
    using System.Linq;
 
    //This class is required by the TypeBrowser - it allows browsing defined types either in VS scenario or in
    //rehosted scenario. The types are divided into two categories - types defined in local assembly (i.e. the one 
    //contained in current project - for that assembly, types are loaded using GetTypes() method), and all other 
    //referenced types - for them, type list is loaded using GetExportedTypes() method.
    // 
    //if this object is not set in desinger's Items collection or both members are null, the type
    //browser will not display "Browse for types" option.
    [Fx.Tag.XamlVisible(false)]
    public sealed class AssemblyContextControlItem : ContextItem 
    {
        public AssemblyName LocalAssemblyName 
        { get; set; } 

        [SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly", Justification = "This is by design")] 
        public IList ReferencedAssemblyNames
        {
            get;
            set; 
        }
 
        public override Type ItemType 
        {
            get { return typeof(AssemblyContextControlItem); } 
        }

        public IEnumerable AllAssemblyNamesInContext
        { 
            get
            { 
                if ((LocalAssemblyName != null) && LocalAssemblyName.CodeBase != null && (File.Exists(new Uri(LocalAssemblyName.CodeBase).LocalPath))) 
                {
                    yield return LocalAssemblyName.FullName; 
                }
                foreach (AssemblyName assemblyName in GetEnvironmentAssemblyNames())
                {
                    //avoid returning local name twice 
                    if (LocalAssemblyName == null || !assemblyName.FullName.Equals(LocalAssemblyName.FullName, StringComparison.Ordinal))
                    { 
                        yield return assemblyName.FullName; 
                    }
                } 

            }
        }
 
        public IEnumerable GetEnvironmentAssemblyNames()
        { 
            if (this.ReferencedAssemblyNames != null) 
            {
                return this.ReferencedAssemblyNames; 
            }
            else
            {
                List assemblyNames = new List(); 
                foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies())
                { 
                    if (!assembly.IsDynamic) 
                    {
                        assemblyNames.Add(assembly.GetName()); 
                    }
                }
                return assemblyNames;
            } 
        }
 
        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", 
            Justification = "Multi-Targeting makes sense")]
        public IEnumerable GetEnvironmentAssemblies (IMultiTargetingSupportService multiTargetingService) 
        {
            if (this.ReferencedAssemblyNames == null)
            {
                return AppDomain.CurrentDomain.GetAssemblies().Where(assembly => !assembly.IsDynamic); 
            }
            else 
            { 
                List assemblies = new List();
                foreach (AssemblyName assemblyName in this.ReferencedAssemblyNames) 
                {
                    Assembly assembly = GetAssembly(assemblyName, multiTargetingService);
                    if (assembly != null)
                    { 
                        assemblies.Add(assembly);
                    } 
                } 
                return assemblies;
            } 
        }

        [SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly",
            Justification = "Multi-Targeting makes sense")] 
        public static Assembly GetAssembly(AssemblyName assemblyName, IMultiTargetingSupportService multiTargetingService)
        { 
            Assembly assembly = null; 
            try
            { 
                if (multiTargetingService != null)
                {
                    assembly = multiTargetingService.GetReflectionAssembly(assemblyName);
                } 
                else
                { 
                    assembly = Assembly.Load(assemblyName); 
                }
            } 
            catch (FileNotFoundException)
            {
                //this exception may occur if current project is not compiled yet
            } 
            catch (FileLoadException)
            { 
                //the assembly could not be loaded, ignore the error 
            }
            catch (BadImageFormatException) 
            {
                //bad assembly
            }
            return assembly; 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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