public static IEnumerable <IDictionary <string, object> > GetValidationRulesByPropertyName(string propertyName, ViewContext viewContext)
{
if (!string.IsNullOrEmpty(propertyName))
{
ModelExplorer modelExplorer = Portability.GetModelExpressionProvider(viewContext).GetModelExplorer(propertyName, viewContext.ViewData);
return(GetValidationRules(propertyName, modelExplorer, viewContext));
}
return(Enumerable.Empty <IDictionary <string, object> >());
}
public static void PrepareEditorFor <TModel, TProperty>(this WidgetBuilder builder, IHtmlHelperAdapter html, Expression <Func <TModel, TProperty> > expression)
{
ViewContext viewContext = html.ViewContext;
Portability.IModelExpressionProviderAdapter modelExpressionProvider = Portability.GetModelExpressionProvider(viewContext);
ModelExplorer modelExplorer = modelExpressionProvider.GetModelExplorer(expression, new ViewDataDictionary <TModel>(viewContext.ViewData));
string expressionText = modelExpressionProvider.GetExpressionText(expression);
builder.Options["name"] = expressionText;
builder.Options["value"] = modelExplorer?.Model;
builder.ValidationRules = DataAnnotationsHelper.GetValidationRules(expressionText, modelExplorer, viewContext);
}
private static string GetExpressionText <M, P>(IHtmlHelperAdapter html, Expression <Func <M, P> > expr)
{
return(Portability.GetModelExpressionProvider(html.ViewContext).GetExpressionText(expr));
}
private static ModelExplorer GetModelExplorer <TModel, TProperty>(IHtmlHelperAdapter html, Expression <Func <TModel, TProperty> > expression)
{
ViewDataDictionary <TModel> viewData = new ViewDataDictionary <TModel>(html.ViewContext.ViewData, null);
return(Portability.GetModelExpressionProvider(html.ViewContext).GetModelExplorer(expression, viewData));
}