101 lines
1.8 KiB
C#
101 lines
1.8 KiB
C#
using System;
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using System.Collections.Generic;
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namespace BeWo.ViewModel
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{
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public abstract class AbstractDCMapperVM<DCType> : AbstractBaseVM where DCType : new()
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{
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#region Constants and Fields
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private readonly List<string> _DirtyProps = new List<string>();
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private bool? _IsNew;
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#endregion
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#region Constructors and Destructors
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public AbstractDCMapperVM() { }
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public AbstractDCMapperVM(DCType pDataContract, bool pIsNew)
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{
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_IsNew = pIsNew;
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DataContract = pDataContract;
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InitByDataContract(DataContract);
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}
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#endregion
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#region Properties
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public override bool IsDirty
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{
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get { return _DirtyProps.Count > 0; }
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}
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public bool IsNew
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{
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get
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{
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if (_IsNew == null)
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{
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throw new NotImplementedException();
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}
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return _IsNew.Value;
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}
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set
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{
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_IsNew = value;
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}
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}
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internal DCType DataContract { get; set; }
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#endregion
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#region Public Methods
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public DCType CommitToDataContract()
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{
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return MapToDataContract(DataContract, true);
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}
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public DCType CopyToEmptyDataContract()
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{
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return MapToDataContract(new DCType(), false);
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}
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public override void SetDirty(bool newDirty)
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{
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if (!newDirty)
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{
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_DirtyProps.Clear();
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}
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}
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#endregion
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#region Methods
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protected abstract void InitByDataContract(DCType pDataContract);
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protected abstract DCType MapToDataContract(DCType pDataContract, bool doCommit);
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protected void StoreDirtyInformation(bool pDirty, string pPropName)
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{
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if (_DirtyProps.Contains(pPropName) && !pDirty)
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{
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_DirtyProps.Remove(pPropName);
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}
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else if (!_DirtyProps.Contains(pPropName) && pDirty)
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{
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_DirtyProps.Add(pPropName);
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}
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}
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#endregion
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}
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} |