public override void OnActionExecuted(ActionExecutedContext context)
{
if (!context.ModelState.IsValid && (
context.Result is RedirectResult ||
context.Result is RedirectToActionResult ||
context.Result is RedirectToRouteResult
))
{
var controller = context.Controller as Controller;
if (controller != null && context.ModelState != null)
{
var modelState = ModelStateHelpers.SerialiseModelState(context.ModelState);
controller.TempData[Key] = modelState;
}
}
base.OnActionExecuted(context);
}
public override void OnActionExecuted(ActionExecutedContext context)
{
var controller = context.Controller as Controller;
var serializedModelState = controller?.TempData[Key] as string;
if (serializedModelState != null)
{
if (context.Result is ViewResult)
{
var modelState = ModelStateHelpers.DeserializeModelState(serializedModelState);
context.ModelState.Merge(modelState);
}
else
{
controller.TempData.Remove(Key);
}
}
base.OnActionExecuted(context);
}