using System.ComponentModel; namespace System.Configuration { public sealed class PropertyInformation { private const string LockAll = "*"; private ConfigurationProperty _prop; private readonly ConfigurationElement _thisElement; private ConfigurationProperty Prop => _prop ?? (_prop = _thisElement.Properties[Name]); public string Name { get; } internal string ProvidedName => Prop.ProvidedName; public object Value { get { return _thisElement[Name]; } set { _thisElement[Name] = value; } } public object DefaultValue => Prop.DefaultValue; public PropertyValueOrigin ValueOrigin { get { if (_thisElement.Values[Name] == null) return PropertyValueOrigin.Default; if (!_thisElement.Values.IsInherited(Name)) return PropertyValueOrigin.SetHere; return PropertyValueOrigin.Inherited; } } public bool IsModified { get { if (_thisElement.Values[Name] != null) return _thisElement.Values.IsModified(Name); return false; } } public bool IsKey => Prop.IsKey; public bool IsRequired => Prop.IsRequired; public bool IsLocked { get { if ((_thisElement.LockedAllExceptAttributesList == null || _thisElement.LockedAllExceptAttributesList.DefinedInParent(Name)) && (_thisElement.LockedAttributesList == null || (!_thisElement.LockedAttributesList.DefinedInParent(Name) && !_thisElement.LockedAttributesList.DefinedInParent("*")))) { if ((_thisElement.ItemLocked & ConfigurationValueFlags.Locked) != 0) return (_thisElement.ItemLocked & ConfigurationValueFlags.Inherited) != ConfigurationValueFlags.Default; return false; } return true; } } public string Source { get { PropertySourceInfo propertySourceInfo = _thisElement.Values.GetSourceInfo(Name) ?? _thisElement.Values.GetSourceInfo(string.Empty); if (propertySourceInfo != null) return propertySourceInfo.FileName; return string.Empty; } } public int LineNumber => (_thisElement.Values.GetSourceInfo(Name) ?? _thisElement.Values.GetSourceInfo(string.Empty))?.LineNumber ?? 0; public Type Type => Prop.Type; public ConfigurationValidatorBase Validator => Prop.Validator; public TypeConverter Converter => Prop.Converter; public string Description => Prop.Description; internal PropertyInformation(ConfigurationElement thisElement, string propertyName) { Name = propertyName; _thisElement = thisElement; } } }