public bool TryLoadEventValidationField(object eventValidationField) {
EventValidationStore validatedIncomingEvents = eventValidationField as EventValidationStore;
if (validatedIncomingEvents == null || validatedIncomingEvents.Count < 1) {
return true; // empty collection is not an error condition
}
Debug.Assert(_outboundEvents == null);
string viewStateString = _clientScriptManager._owner.RequestViewStateString;
if (!validatedIncomingEvents.Contains(null, viewStateString)) {
return false; // error: this event validation store isn't associated with the incoming __VIEWSTATE
}
_inboundEvents = validatedIncomingEvents;
if (_clientScriptManager._owner.IsCallback) {
// Seed the outbound provider with the valid inbound values; clone so that any outbound values
// added during page processing aren't accidentally treated as valid inbound values.
EventValidationStore clonedEventValidationStore = validatedIncomingEvents.Clone();
_outboundEvents = clonedEventValidationStore;
}
return true;
}
public void RegisterForEventValidation(string uniqueId, string argument) {
if (_outboundEvents == null) {
if (_clientScriptManager._owner.IsCallback) {
_clientScriptManager.EnsureEventValidationFieldLoaded();
// _outboundEvents could have been initialized by the call to EnsureEventValidationFieldLoaded.
if (_outboundEvents == null) {
_outboundEvents = new EventValidationStore();
}
}
else {
// Make a new store object and tie it to the outbound __VIEWSTATE field.
// (This is the only field which can have a null/empty 'target'.)
_outboundEvents = new EventValidationStore();
_outboundEvents.Add(null, _clientScriptManager._owner.ClientState);
}
}
_outboundEvents.Add(uniqueId, argument);
}
