protected override void UpdateDataObject(object dataContext, object table, object oldDataObject, object newDataObject)
{
var dataServiceContext = (DataServiceContext)dataContext;
var idataServiceContext = dataContext as IDataServiceContext;
string etag = null;
if (this._etagMap != null && this._etagMap.TryGetValue(DataServiceUtilities.BuildCompositeKey(oldDataObject), out etag))
{
if (idataServiceContext != null)
{
idataServiceContext.AttachTo(TableName, newDataObject, etag);
}
else
{
dataServiceContext.AttachTo(TableName, newDataObject, etag);
}
}
else
{
if (idataServiceContext != null)
{
idataServiceContext.AttachTo(TableName, newDataObject);
}
else
{
dataServiceContext.AttachTo(TableName, newDataObject);
}
}
ProcessForeignKeys(dataServiceContext, newDataObject, _values);
dataServiceContext.UpdateObject(newDataObject);
DataServiceResponse dataServiceResponse = dataServiceContext.SaveChanges();
}
protected override void DeleteDataObject(object dataContext, object table, object oldDataObject)
{
var dataServiceContext = (DataServiceContext)dataContext;
var idataServiceContext = dataContext as IDataServiceContext;
string etag = null;
if (this._etagMap != null && this._etagMap.TryGetValue(DataServiceUtilities.BuildCompositeKey(oldDataObject), out etag))
{
if (idataServiceContext != null)
{
idataServiceContext.AttachTo(TableName, oldDataObject, etag);
}
else
{
dataServiceContext.AttachTo(TableName, oldDataObject, etag);
}
}
else
{
if (idataServiceContext != null)
{
idataServiceContext.AttachTo(TableName, oldDataObject);
}
else
{
dataServiceContext.AttachTo(TableName, oldDataObject);
}
}
dataServiceContext.DeleteObject(oldDataObject);
dataServiceContext.SaveChanges();
}
protected override object SaveViewState()
{
var myState = new Pair();
myState.First = base.SaveViewState();
if (_dataServiceContext != null)
{
myState.Second = _dataServiceContext.Entities.Where(ed => !String.IsNullOrEmpty(ed.ETag)).ToDictionary(
ed => DataServiceUtilities.BuildCompositeKey(ed.Entity), ed => ed.ETag);
}
return(myState);
}