// Only render attributes if unobtrusive client-side validation is enabled, and then only if we've
// never rendered validation for a field with this name in this form. Also, if there's no form context,
// then we can't render the attributes (we'd have no <form> to attach them to).
public IDictionary <string, object> GetUnobtrusiveValidationAttributes(string name, ModelMetadata metadata)
{
Dictionary <string, object> results = new Dictionary <string, object>();
// The ordering of these 3 checks (and the early exits) is for performance reasons.
if (!ViewContext.UnobtrusiveJavaScriptEnabled)
{
return(results);
}
FormContext formContext = ViewContext.GetFormContextForClientValidation();
if (formContext == null)
{
return(results);
}
string fullName = ViewData.TemplateInfo.GetFullHtmlFieldName(name);
if (formContext.RenderedField(fullName))
{
return(results);
}
formContext.RenderedField(fullName, true);
IEnumerable <ModelClientValidationRule> clientRules = ClientValidationRuleFactory(name, metadata);
UnobtrusiveValidationAttributesGenerator.GetValidationAttributes(clientRules, results);
return(results);
}
// Only render attributes if unobtrusive client-side validation is enabled, and then only if we've
// never rendered validation for a field with this name in this form. Also, if there's no form context,
// then we can't render the attributes (we'd have no <form> to attach them to).
public IDictionary <string, object> GetUnobtrusiveValidationAttributes(string name, ModelMetadata metadata)
{
Dictionary <string, object> results = new Dictionary <string, object>();
// The ordering of these 3 checks (and the early exits) is for performance reasons.
if (!ViewContext.UnobtrusiveJavaScriptEnabled)
{
return(results);
}
FormContext formContext = ViewContext.GetFormContextForClientValidation();
if (formContext == null)
{
return(results);
}
string fullName = ViewData.TemplateInfo.GetFullHtmlFieldName(name);
if (formContext.RenderedField(fullName))
{
return(results);
}
formContext.RenderedField(fullName, true);
IEnumerable <ModelClientValidationRule> clientRules = ClientValidationRuleFactory(name, metadata);
bool renderedRules = false;
foreach (ModelClientValidationRule rule in clientRules)
{
renderedRules = true;
string ruleName = "data-val-" + rule.ValidationType;
ValidateUnobtrusiveValidationRule(rule, results, ruleName);
results.Add(ruleName, HttpUtility.HtmlEncode(rule.ErrorMessage ?? String.Empty));
ruleName += "-";
foreach (var kvp in rule.ValidationParameters)
{
results.Add(ruleName + kvp.Key, kvp.Value ?? String.Empty);
}
}
if (renderedRules)
{
results.Add("data-val", "true");
}
return(results);
}