public override IEnumerable <ModelClientValidationRule> GetClientValidationRules()
{
IClientValidatable clientValidatable = Attribute as IClientValidatable;
if (clientValidatable != null)
{
return(clientValidatable.GetClientValidationRules(Metadata, ControllerContext));
}
return(base.GetClientValidationRules());
}
public override IEnumerable<ModelClientValidationRule> GetClientValidationRules()
{
IEnumerable<ModelClientValidationRule> results = base.GetClientValidationRules();
IClientValidatable clientValidatable = Attribute as IClientValidatable;
if (clientValidatable != null)
{
results = results.Concat(clientValidatable.GetClientValidationRules(Metadata, ControllerContext));
}
return results;
}
/// <summary>
/// When implemented in a derived class, returns metadata for client validation.
/// </summary>
/// <returns>
/// The metadata for client validation.
/// </returns>
public override IEnumerable <ModelClientValidationRule> GetClientValidationRules()
{
// ReSharper disable once SuspiciousTypeConversion.Global
IClientValidatable supportsClientValidation = m_Validator as IClientValidatable;
if (supportsClientValidation != null)
{
return(supportsClientValidation.GetClientValidationRules(Metadata, ControllerContext));
}
return(Enumerable.Empty <ModelClientValidationRule>());
}
/// <summary> Returns the HTML ID of the specified view model property. </summary>
/// <remarks> Based on: http://stackoverflow.com/a/21018963/1637105 </remarks>
/// <param name="metadata"> The model metadata. </param>
/// <param name="viewContext"> The view context. </param>
/// <param name="propertyName"> The name of the view model property whose HTML ID is to be returned. </param>
public static string GetHtmlId(this IClientValidatable me,
ModelMetadata metadata, ControllerContext context,
string propertyName)
{
var viewContext = context as ViewContext;
if (viewContext == null || viewContext.ViewData.TemplateInfo.HtmlFieldPrefix == string.Empty)
{
return(propertyName);
}
else
{
// This is tricky. The "Field ID" returned by GetFullHtmlFieldId is the HTML ID
// attribute created by the MVC view engine for the property whose validator is
// being set up by the caller of this routine. This code removes the property
// name from the Field ID, then inserts the specified property name.
// Of course, this only works for elements on the same page as the caller of
// this routine!
string fieldId = viewContext.ViewData.TemplateInfo.GetFullHtmlFieldId("");
fieldId = fieldId.Remove(fieldId.LastIndexOf("_"));
return(fieldId + "_" + propertyName);
}
}
