Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / Tools / System.Activities.Core.Presentation / System / ServiceModel / Activities / Presentation / TypeToTreeConverter.cs / 1305376 / TypeToTreeConverter.cs
//---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.ServiceModel.Activities.Presentation { using System; using System.Globalization; using System.Linq; using System.Reflection; using System.Windows.Data; using System.Activities.Presentation.Model; using System.Collections; using System.Activities.Core.Presentation; using System.Xml; using System.Runtime.Serialization; using System.Xml.Serialization; sealed class TypeToTreeConverter : IValueConverter { object IValueConverter.Convert(object value, Type targetType, object parameter, CultureInfo culture) { Type type = null; if (value is ModelItem) { value = ((ModelItem)value).GetCurrentValue(); } if (value is Type) { type = (Type)value; } else if (value is PropertyInfo) { type = ((PropertyInfo)value).PropertyType; } else if (value is FieldInfo) { type = ((FieldInfo)value).FieldType; } //1) Dead-ends (not expand any more) // a. CLR built-in types // b. Byte array, DateTime, TimeSpan, GUID, Uri, XmlQualifiedName, XmlElement and XmlNode array [This includes XElement and XNode array from .NET 3.5] // c. Enums // d. Arrays and Collection classes including List, Dictionary and Hashtable(Anything that implements IEnumerable or IDictionary or is an array is treated as a collection) // e. Types marked with [CollectionDataContract] attribute //2) Show nothing (Xpath generator cannot generate XPath according to member info), but user should be able to manually input query string // a. Types that implement IXmlSerializable // b. Types that implement ISerializable. //3) Show all fields without [NonSerializable] regardless of visibility // a. Types marked with Serializable attribute //4) Show all [DataMembers] // a. Types marked with DataContract attribute //5) Show all public fields and properties without [IgnoreDataMember] // a. Types with none of the above attributes (POCO) but with a default constructor (can be non-public). // // //Priority of those interfaces or attributes: //IXmlSerializable -> ISerializable -> DataContract -> Serializable //Type cannot be Iserializable/IXmlSerializable and have DataContractAttribute attribute. IEnumerable result = null; if ((null != type) && (!ContentCorrelationTypeExpander.IsPrimitiveTypeInXPath(type))) { if (type.GetInterface("IXmlSerializable", false) != null) { result = null; } else if (type.GetInterface("ISerializable", false) != null) { result = null; } else if (type.GetCustomAttributes(typeof(DataContractAttribute), false).Length > 0) { result = type .GetMembers(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic) .Where(member => member.GetCustomAttributes(typeof(DataMemberAttribute), false).Length > 0) .OrderBy(member => member.Name); } else if (type.GetCustomAttributes(typeof(SerializableAttribute), false).Length > 0) { result = type .GetMembers(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public) .Where(member => member.MemberType == MemberTypes.Field && member.GetCustomAttributes(typeof(NonSerializedAttribute), false).Length == 0) .OrderBy(member => member.Name); } else if (type.GetConstructor(new Type[0] { }) != null) { result = type .GetMembers(BindingFlags.Instance | BindingFlags.Public) .Where(member => (member.MemberType == MemberTypes.Field || member.MemberType == MemberTypes.Property) && (member.GetCustomAttributes(typeof(IgnoreDataMemberAttribute), false).Length == 0)) .OrderBy(member => member.Name); } } return result; } object IValueConverter.ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { throw FxTrace.Exception.AsError(new NotSupportedException()); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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