Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / Tools / System.Activities.Presentation / System / Activities / Presentation / Base / Core / Internal / PropertyEditing / State / PropertyState.cs / 1305376 / PropertyState.cs
//---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Activities.Presentation.Internal.PropertyEditing.State { using System; using System.Diagnostics; using System.Diagnostics.CodeAnalysis; using System.Runtime; //// Simple state object that knows how to remember state for a single property. // The only thing it currently remembers is whether the property's sub-properties // are expanded or collapsed. // internal class PropertyState : PersistedState { private const bool DefaultSubPropertiesExpanded = false; private string _propertyName; private bool _subPropertiesExpanded = DefaultSubPropertiesExpanded; //// Basic ctor // // Property to wrap around [SuppressMessage("Microsoft.Performance", "CA1805:DoNotInitializeUnnecessarily")] public PropertyState(string propertyName) { Fx.Assert(!string.IsNullOrEmpty(propertyName), "Expected a full property name"); _propertyName = propertyName; } //// We key these state objects by their property names // public override object Key { get { return _propertyName; } } //// Returns true if any of the contained values differ from the default // public override bool IsSignificant { get { return _subPropertiesExpanded != DefaultSubPropertiesExpanded; } } //// Gets or sets a flag indicating whether the sub-properties of the contained // property have been expanded or collapsed. // public bool SubPropertiesExpanded { get { return _subPropertiesExpanded; } set { _subPropertiesExpanded = value; } } //// Serializes this object into a simple string (AppDomains like strings). // // Format: PropertyName,SubPropertiesExpanded;NextPropertyName,SubPropertiesExpanded;... // Where bools are recorded as 0 = false and 1 = true // //Serialized version of this state object (may be null) protected override string SerializeCore() { return string.Concat( PersistedStateUtilities.Escape(_propertyName), ',', PersistedStateUtilities.BoolToDigit(_subPropertiesExpanded)); } //// Attempts to deserialize a string into a PropertyState object // // String to deserialize //Instance of PropertyState if the serialized string was valid, null otherwise. public static PropertyState Deserialize(string propertyStateString) { string[] args = propertyStateString.Split(','); if (args == null || args.Length != 2) { return null; } bool? subPropertiesExpanded = PersistedStateUtilities.DigitToBool(args[1]); if (subPropertiesExpanded == null) { return null; } string propertyName = PersistedStateUtilities.Unescape(args[0]); if (string.IsNullOrEmpty(propertyName)) { return null; } PropertyState propertyState = new PropertyState(propertyName); propertyState.SubPropertiesExpanded = (bool)subPropertiesExpanded; return propertyState; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Activities.Presentation.Internal.PropertyEditing.State { using System; using System.Diagnostics; using System.Diagnostics.CodeAnalysis; using System.Runtime; //// Simple state object that knows how to remember state for a single property. // The only thing it currently remembers is whether the property's sub-properties // are expanded or collapsed. // internal class PropertyState : PersistedState { private const bool DefaultSubPropertiesExpanded = false; private string _propertyName; private bool _subPropertiesExpanded = DefaultSubPropertiesExpanded; //// Basic ctor // // Property to wrap around [SuppressMessage("Microsoft.Performance", "CA1805:DoNotInitializeUnnecessarily")] public PropertyState(string propertyName) { Fx.Assert(!string.IsNullOrEmpty(propertyName), "Expected a full property name"); _propertyName = propertyName; } //// We key these state objects by their property names // public override object Key { get { return _propertyName; } } //// Returns true if any of the contained values differ from the default // public override bool IsSignificant { get { return _subPropertiesExpanded != DefaultSubPropertiesExpanded; } } //// Gets or sets a flag indicating whether the sub-properties of the contained // property have been expanded or collapsed. // public bool SubPropertiesExpanded { get { return _subPropertiesExpanded; } set { _subPropertiesExpanded = value; } } //// Serializes this object into a simple string (AppDomains like strings). // // Format: PropertyName,SubPropertiesExpanded;NextPropertyName,SubPropertiesExpanded;... // Where bools are recorded as 0 = false and 1 = true // //Serialized version of this state object (may be null) protected override string SerializeCore() { return string.Concat( PersistedStateUtilities.Escape(_propertyName), ',', PersistedStateUtilities.BoolToDigit(_subPropertiesExpanded)); } //// Attempts to deserialize a string into a PropertyState object // // String to deserialize //Instance of PropertyState if the serialized string was valid, null otherwise. public static PropertyState Deserialize(string propertyStateString) { string[] args = propertyStateString.Split(','); if (args == null || args.Length != 2) { return null; } bool? subPropertiesExpanded = PersistedStateUtilities.DigitToBool(args[1]); if (subPropertiesExpanded == null) { return null; } string propertyName = PersistedStateUtilities.Unescape(args[0]); if (string.IsNullOrEmpty(propertyName)) { return null; } PropertyState propertyState = new PropertyState(propertyName); propertyState.SubPropertiesExpanded = (bool)subPropertiesExpanded; return propertyState; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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