protected object UpdateModel(ControllerContext controllerContext, ModelBindingContext bindingContext, object model)
{
bool cont = true;
int index = 0;
int notNullCount = 0;
int prevErrors;
List <int> trueIndexes = null;
Type previousModelType = null;
while (cont)
{
string displayPrefix = bindingContext.ModelName;
if (displayPrefix == "model" || (bindingContext.ModelMetadata.PropertyName == null && !displayPrefix.Contains('.') && !displayPrefix.Contains('[') && !displayPrefix.Contains('$')))
{
displayPrefix = "updatemodel";
}
ValueProviderResult attemptedTransformer = bindingContext.ValueProvider.GetValue(displayPrefix + string.Format(".$${0}", index));
if (attemptedTransformer != null && attemptedTransformer.AttemptedValue != null)
{
Type displayModelType = BasicHtmlHelper.DecodeUpdateInfo(attemptedTransformer.AttemptedValue, previousModelType, bindingContext.ValueProvider);
if (displayModelType != null && displayModelType.IsClass && displayModelType.GetInterface("IUpdateModel") != null)
{
prevErrors = bindingContext.ModelState.Keys.Count;
previousModelType = displayModelType;
IUpdateModel displayModel = BindDisplayModel(controllerContext, bindingContext, displayModelType, string.Format(".$${0}.$", index)) as IUpdateModel;
if (trueIndexes == null)
{
trueIndexes = new List <int>();
}
if (displayModel == null)
{
trueIndexes.Add(-1);
}
else
{
string[] fields = null;
ValueProviderResult fieldsAttemptedTransformer = bindingContext.ValueProvider.GetValue(displayPrefix + string.Format(".$${0}.f$ields", index));
if (fieldsAttemptedTransformer != null && !string.IsNullOrWhiteSpace(fieldsAttemptedTransformer.AttemptedValue))
{
fields = BasicHtmlHelper.DecodeFieldsInfo(fieldsAttemptedTransformer.AttemptedValue).Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);
}
else
{
fields = new string[0];
}
int beforeElements = -1;
ICollection beforeCollection = model as ICollection;
if (beforeCollection != null)
{
beforeElements = beforeCollection.Count;
}
IUpdateModelState updateModelState = displayModel as IUpdateModelState;
bool finished = false;
if (updateModelState != null)
{
if (updateModelState.MoveState && index != notNullCount)
{
trueIndexes.Add(notNullCount);
AlignModelState(
bindingContext.ModelState,
trueIndexes,
LowerModelName(displayPrefix, ".$$"));
finished = true;
}
updateModelState.GetCurrState(displayPrefix, notNullCount, bindingContext.ModelState);
}
IVisualState visualStateStorage = displayModel as IVisualState;
if (visualStateStorage != null)
{
visualStateStorage.ModelName = bindingContext.ModelName;
visualStateStorage.Store = controllerContext.HttpContext.Items;
}
IHandleUpdateIndex handleUpdateIndex = displayModel as IHandleUpdateIndex;
if (handleUpdateIndex != null)
{
handleUpdateIndex.Index = index;
handleUpdateIndex.ModelState = bindingContext.ModelState;
}
try
{
model = displayModel.UpdateModel(model, fields);
}
catch (Exception ex)
{
bindingContext.ModelState.AddModelError(bindingContext.ModelName, string.Format(ex.Message, bindingContext.ModelMetadata.GetDisplayName()));
}
if (finished)
{
break;
}
int afterElements = -1;
ICollection afterCollection = model as ICollection;
if (afterCollection != null)
{
afterElements = afterCollection.Count;
}
bool noCollections = afterElements == -1 && beforeElements == -1;
if (model != null && (noCollections || beforeElements != afterElements))
{
trueIndexes.Add(notNullCount);
notNullCount++;
}
else
{
trueIndexes.Add(-1);
}
}
}
}
else
{
if (index != notNullCount)
{
AlignModelState(
bindingContext.ModelState,
trueIndexes,
LowerModelName(displayPrefix, ".$$"));
}
cont = false;
break;
}
index++;
}
return(model);
}
