Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Data / XmlNamespaceMapping.cs / 1305600 / XmlNamespaceMapping.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: Implementation of XmlNamespaceMapping object. // // Specs: http://avalon/connecteddata/M5%20Specs/XmlDataSource.mht // http://avalon/connecteddata/M5%20Specs/WCP%20DataSources.mht // //--------------------------------------------------------------------------- using System; using System.ComponentModel; // ISupportInitialize namespace System.Windows.Data { ////// XmlNamespaceMapping Class /// used for declaring Xml Namespace Mappings /// public class XmlNamespaceMapping : ISupportInitialize { ////// Constructor for XmlNamespaceMapping /// public XmlNamespaceMapping() { } ////// Constructor for XmlNamespaceMapping /// public XmlNamespaceMapping(string prefix, Uri uri) { _prefix = prefix; _uri = uri; } ////// The prefix to be used for this Namespace /// public string Prefix { get { return _prefix; } set { if (!_initializing) throw new InvalidOperationException(SR.Get(SRID.PropertyIsInitializeOnly, "Prefix", this.GetType().Name)); if (_prefix != null && _prefix != value) throw new InvalidOperationException(SR.Get(SRID.PropertyIsImmutable, "Prefix", this.GetType().Name)); _prefix = value; } } ////// The Uri to be used for this Namespace, /// can be declared as an attribute or as the /// TextContent of the XmlNamespaceMapping markup tag /// public Uri Uri { get { return _uri; } set { if (!_initializing) throw new InvalidOperationException(SR.Get(SRID.PropertyIsInitializeOnly, "Uri", this.GetType().Name)); if (_uri != null && _uri != value) throw new InvalidOperationException(SR.Get(SRID.PropertyIsImmutable, "Uri", this.GetType().Name)); _uri = value; } } ////// Equality comparison by value /// public override bool Equals(object obj) { return (this == (obj as XmlNamespaceMapping)); // call the == operator override } ////// Equality comparison by value /// public static bool operator == (XmlNamespaceMapping mappingA, XmlNamespaceMapping mappingB) { // cannot just compare with (mappingX == null), it'll cause recursion and stack overflow! if (object.ReferenceEquals(mappingA, null)) return object.ReferenceEquals(mappingB, null); if (object.ReferenceEquals(mappingB, null)) return false; #pragma warning disable 1634, 1691 // presharp false positive for null-checking on mappings #pragma warning suppress 56506 return ((mappingA.Prefix == mappingB.Prefix) && (mappingA.Uri == mappingB.Uri)) ; #pragma warning restore 1634, 1691 } ////// Inequality comparison by value /// public static bool operator != (XmlNamespaceMapping mappingA, XmlNamespaceMapping mappingB) { return !(mappingA == mappingB); } ////// Hash function for this type /// public override int GetHashCode() { // note that the hash code can change, but only during intialization // (_prefix and _uri can only be changed once, from null to // non-null, and only during [Begin/End]Init). Technically this is // still a violation of the "constant during lifetime" rule, however // in practice this is acceptable. It is very unlikely that someone // will put an XmlNamespaceMapping into a hashtable before it is initialized. int hash = 0; if (_prefix != null) hash = _prefix.GetHashCode(); if (_uri != null) return unchecked(hash + _uri.GetHashCode()); else return hash; } #region ISupportInitialize ///Begin Initialization void ISupportInitialize.BeginInit() { _initializing = true; } ///End Initialization, verify that internal state is consistent void ISupportInitialize.EndInit() { if (_prefix == null) { throw new InvalidOperationException(SR.Get(SRID.PropertyMustHaveValue, "Prefix", this.GetType().Name)); } if (_uri == null) { throw new InvalidOperationException(SR.Get(SRID.PropertyMustHaveValue, "Uri", this.GetType().Name)); } _initializing = false; } #endregion ISupportInitialize private string _prefix; private Uri _uri; private bool _initializing; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: Implementation of XmlNamespaceMapping object. // // Specs: http://avalon/connecteddata/M5%20Specs/XmlDataSource.mht // http://avalon/connecteddata/M5%20Specs/WCP%20DataSources.mht // //--------------------------------------------------------------------------- using System; using System.ComponentModel; // ISupportInitialize namespace System.Windows.Data { ////// XmlNamespaceMapping Class /// used for declaring Xml Namespace Mappings /// public class XmlNamespaceMapping : ISupportInitialize { ////// Constructor for XmlNamespaceMapping /// public XmlNamespaceMapping() { } ////// Constructor for XmlNamespaceMapping /// public XmlNamespaceMapping(string prefix, Uri uri) { _prefix = prefix; _uri = uri; } ////// The prefix to be used for this Namespace /// public string Prefix { get { return _prefix; } set { if (!_initializing) throw new InvalidOperationException(SR.Get(SRID.PropertyIsInitializeOnly, "Prefix", this.GetType().Name)); if (_prefix != null && _prefix != value) throw new InvalidOperationException(SR.Get(SRID.PropertyIsImmutable, "Prefix", this.GetType().Name)); _prefix = value; } } ////// The Uri to be used for this Namespace, /// can be declared as an attribute or as the /// TextContent of the XmlNamespaceMapping markup tag /// public Uri Uri { get { return _uri; } set { if (!_initializing) throw new InvalidOperationException(SR.Get(SRID.PropertyIsInitializeOnly, "Uri", this.GetType().Name)); if (_uri != null && _uri != value) throw new InvalidOperationException(SR.Get(SRID.PropertyIsImmutable, "Uri", this.GetType().Name)); _uri = value; } } ////// Equality comparison by value /// public override bool Equals(object obj) { return (this == (obj as XmlNamespaceMapping)); // call the == operator override } ////// Equality comparison by value /// public static bool operator == (XmlNamespaceMapping mappingA, XmlNamespaceMapping mappingB) { // cannot just compare with (mappingX == null), it'll cause recursion and stack overflow! if (object.ReferenceEquals(mappingA, null)) return object.ReferenceEquals(mappingB, null); if (object.ReferenceEquals(mappingB, null)) return false; #pragma warning disable 1634, 1691 // presharp false positive for null-checking on mappings #pragma warning suppress 56506 return ((mappingA.Prefix == mappingB.Prefix) && (mappingA.Uri == mappingB.Uri)) ; #pragma warning restore 1634, 1691 } ////// Inequality comparison by value /// public static bool operator != (XmlNamespaceMapping mappingA, XmlNamespaceMapping mappingB) { return !(mappingA == mappingB); } ////// Hash function for this type /// public override int GetHashCode() { // note that the hash code can change, but only during intialization // (_prefix and _uri can only be changed once, from null to // non-null, and only during [Begin/End]Init). Technically this is // still a violation of the "constant during lifetime" rule, however // in practice this is acceptable. It is very unlikely that someone // will put an XmlNamespaceMapping into a hashtable before it is initialized. int hash = 0; if (_prefix != null) hash = _prefix.GetHashCode(); if (_uri != null) return unchecked(hash + _uri.GetHashCode()); else return hash; } #region ISupportInitialize ///Begin Initialization void ISupportInitialize.BeginInit() { _initializing = true; } ///End Initialization, verify that internal state is consistent void ISupportInitialize.EndInit() { if (_prefix == null) { throw new InvalidOperationException(SR.Get(SRID.PropertyMustHaveValue, "Prefix", this.GetType().Name)); } if (_uri == null) { throw new InvalidOperationException(SR.Get(SRID.PropertyMustHaveValue, "Uri", this.GetType().Name)); } _initializing = false; } #endregion ISupportInitialize private string _prefix; private Uri _uri; private bool _initializing; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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