private void ModelVMSynchro <TModel, TVM>(List <TModel> lstModels,
ObservableCollection <TVM> collectionVM,
Func <TModel, TVM> createVMElement)
{
//number of lines changed that means
//delete or insert occured
if (lstModels.Count != collectionVM.Count)
{
collectionVM.Clear();
lstModels.ForEach(modelElement =>
{
collectionVM.Add(createVMElement.Invoke(modelElement));
}
);
}
else
{
//note: at this point assume amount of elements in lstModels is
//equal of collectionVM
for (int i = 0; i < lstModels.Count; i++)
{
List <PropertyInfo> sourceProperties = lstModels[i].GetType().GetProperties().ToList();
List <PropertyInfo> destProperties = collectionVM[i].GetType().GetProperties().ToList();
if (sourceProperties.Count != destProperties.Count)
{
throw new ApplicationException("ModelVMSyncro. sourceProperties.Count != destProperties.Count");
}
sourceProperties.ForEach
(srcProp =>
{
bool bfound = false;
destProperties.ForEach
(dstProp =>
{
if (srcProp.Name == dstProp.Name)
{
bfound = true;
object dstEl = dstProp.GetValue(collectionVM[i], null);
object srcEl = srcProp.GetValue(lstModels[i], null);
if (!CUtilReflex.IsEqualValues(srcEl, dstEl))
{
dstProp.SetValue(collectionVM[i], srcEl, null);
}
}
}
);
if (!bfound)
{
Error("ModelVMSyncro. " + srcProp.Name + "not found");
}
}
);
}
}
}
private void CheckUpdateOrAdd(List <TModelElement> inpList)
{
foreach (var modelElement in inpList)
{
bool bFoundEqKeys = false;
for (int i = 0; i < _collectionVm.Count; i++)
{
List <PropertyInfo> sourceProperties = modelElement.GetType().GetProperties().ToList();
List <PropertyInfo> destProperties = _collectionVm[i].GetType().GetProperties().ToList();
int cntEqKeysFound = 0;
//bool bNotEqKeyFnd = false;
//compare properties of two current elements
foreach (var srcPropInfo in sourceProperties)
{
foreach (var dstPropInfo in destProperties)
{
if (_lstKeys.Contains(srcPropInfo.Name) &&
srcPropInfo.Name == dstPropInfo.Name)
{
if (CUtilReflex.IsEqualValues(srcPropInfo.GetValue(modelElement, null),
dstPropInfo.GetValue(_collectionVm[i], null)))
{
cntEqKeysFound++;
//all of keys are matched
if (cntEqKeysFound == _lstKeys.Count)
{
_collectionVm[i] = _createVMElement(modelElement);
//keys found
//no need to iterate more properties
bFoundEqKeys = true;
break;
}
}
}
}
//keys found no need to iterate more
if (bFoundEqKeys)
{
break;
}
}
}
//we iterated all _lstModelElements and not found element from source
//so we need to add element to _lstModelElemets
if (!bFoundEqKeys)
{
_collectionVm.Add(_createVMElement.Invoke((modelElement)));
}
}
}
public static void Test()
{
int i1 = 2;
int i2 = 2;
Assert.IsTrue(CUtilReflex.IsEqualValues((object)i1, (object)i2));
i1 = 2;
i2 = 3;
Assert.IsFalse(CUtilReflex.IsEqualValues((object)i1, (object)i2));
long l1 = 2;
long l2 = 2;
Assert.IsTrue(CUtilReflex.IsEqualValues((object)l1, (object)l2));
l1 = 2;
l2 = 3;
Assert.IsFalse(CUtilReflex.IsEqualValues((object)l1, (object)l2));
decimal d1 = 2.01m;
decimal d2 = 2.01m;
Assert.IsTrue(CUtilReflex.IsEqualValues((object)d1, (object)d2));
d1 = 2.01m;
d2 = 2.02m;
Assert.IsFalse(CUtilReflex.IsEqualValues((object)d1, (object)d2));
double dbl1 = 2.01;
double dbl2 = 2.01;
Assert.IsTrue(CUtilReflex.IsEqualValues((object)dbl1, (object)dbl2));
dbl1 = 2.01;
dbl2 = 2.02;
Assert.IsFalse(CUtilReflex.IsEqualValues((object)dbl1, (object)dbl2));
string st1 = "ab";
string st2 = "ab";
Assert.IsTrue(CUtilReflex.IsEqualValues((object)st1, (object)st2));
st1 = "ab";
st2 = "aB";
Assert.IsFalse(CUtilReflex.IsEqualValues((object)st1, (object)st2));
}
private void CheckDelete(int stockExchId, List <TModelElement> inpList)
{
if (stockExchId == 0)
{
_client.Error("CBaseDataSyncher. CheckDelete. StockExchId == 0");
}
//Enumerate all elements in collectionVM. If element is not
// exist in inpList (for the same StockExchId) do delete it from collectionVm
for (int i = 0; i < _collectionVm.Count; i++)
{
List <PropertyInfo> destProperties = _collectionVm[i].GetType().GetProperties().ToList();
PropertyInfo dstPrpInf = destProperties.Find(dstPrp => dstPrp.Name == KeysDependenciesTrdMgr.StockExchId);
if ((int)dstPrpInf.GetValue(_collectionVm[i], null) != stockExchId)
{
continue;
}
bool bFoundEqKeys = false;
foreach (var modelElement in inpList)
{
List <PropertyInfo> sourceProperties = modelElement.GetType().GetProperties().ToList();
int cntEqKeysFound = 0;
//bool bNotEqKeyFnd = false;
//compare properties of two current elements
foreach (var srcPropInfo in sourceProperties)
{
foreach (var dstPropInfo in destProperties)
{
if (_lstKeys.Contains(srcPropInfo.Name) &&
srcPropInfo.Name == dstPropInfo.Name)
{
if (CUtilReflex.IsEqualValues(srcPropInfo.GetValue(modelElement, null),
dstPropInfo.GetValue(_collectionVm[i], null)))
{
cntEqKeysFound++;
//all of keys are matched
if (cntEqKeysFound == _lstKeys.Count)
{
//keys found
//no need to iterate more properties
bFoundEqKeys = true;
}
}
}
}
//keys found no need to iterate more
if (bFoundEqKeys)
{
break;
}
}
}
//we iterated all _lstModelElements and not found element from source
//so we need to add element to _lstModelElemets
if (!bFoundEqKeys)
{
_collectionVm.RemoveAt(i);
}
}
}
