public static IHtmlString ValidationMessageForInput(this HtmlHelper htmlHelper, string inputName, IDictionary <string, object> htmlAttributes)
{
var validationMessage = "";
string fullHtmlFieldName = inputName;
if (!htmlHelper.ViewContext.UnobtrusiveJavaScriptEnabled)
{
throw new InvalidOperationException("Requires UnobtrusiveJavaScriptEnabled.");
}
ModelState modelState = htmlHelper.ViewData.ModelState[fullHtmlFieldName];
ModelErrorCollection errors = (modelState == null) ? null : modelState.Errors;
ModelError error = ((errors == null) || (errors.Count == 0)) ? null : errors[0];
TagBuilder builder = new TagBuilder("span");
builder.MergeAttributes <string, object>(htmlAttributes);
builder.AddCssClass((error != null) ? HtmlHelper.ValidationMessageCssClassName : HtmlHelper.ValidationMessageValidCssClassName);
if (!string.IsNullOrEmpty(validationMessage))
{
builder.SetInnerText(validationMessage);
}
else if (error != null)
{
builder.SetInnerText(GetUserErrorMessageOrDefault(htmlHelper.ViewContext.HttpContext, error, modelState));
}
bool replaceValidationMessageContents = String.IsNullOrEmpty(validationMessage);
builder.MergeAttribute("data-valmsg-for", fullHtmlFieldName);
builder.MergeAttribute("data-valmsg-replace", replaceValidationMessageContents.ToString().ToLowerInvariant());
return(new HtmlString(builder.ToString(TagRenderMode.Normal)));
}
public static IHtmlString ValidationMessage(this HtmlHelper htmlHelper, ModelMetadata modelMetadata, IDictionary <string, object> htmlAttributes)
{
htmlAttributes = htmlAttributes ?? new RouteValueDictionary();
var validationMessage = "";
string fullHtmlFieldName = htmlAttributes["name"] == null ? modelMetadata.PropertyName : htmlAttributes["name"].ToString();
if (!string.IsNullOrEmpty(htmlHelper.ViewData.TemplateInfo.HtmlFieldPrefix))
{
fullHtmlFieldName = htmlHelper.ViewData.TemplateInfo.HtmlFieldPrefix + "." + fullHtmlFieldName;
}
FormContext formContextForClientValidation = htmlHelper.ViewContext.FormContext;
//if (htmlHelper.ViewContext.ClientValidationEnabled)
//{
// formContextForClientValidation = htmlHelper.ViewContext.FormContext;
//}
//if (!htmlHelper.ViewData.ModelState.ContainsKey(fullHtmlFieldName) && (formContextForClientValidation == null))
//{
// return null;
//}
ModelState modelState = htmlHelper.ViewData.ModelState[fullHtmlFieldName];
ModelErrorCollection errors = (modelState == null) ? null : modelState.Errors;
ModelError error = ((errors == null) || (errors.Count == 0)) ? null : errors[0];
if ((error == null) && (formContextForClientValidation == null))
{
return(null);
}
TagBuilder builder = new TagBuilder("span");
builder.MergeAttributes <string, object>(htmlAttributes);
builder.AddCssClass((error != null) ? HtmlHelper.ValidationMessageCssClassName : HtmlHelper.ValidationMessageValidCssClassName);
if (!string.IsNullOrEmpty(validationMessage))
{
builder.SetInnerText(validationMessage);
}
else if (error != null)
{
builder.SetInnerText(GetUserErrorMessageOrDefault(htmlHelper.ViewContext.HttpContext, error, modelState));
}
if (formContextForClientValidation != null)
{
bool replaceValidationMessageContents = String.IsNullOrEmpty(validationMessage);
FieldValidationMetadata fieldMetadata = ApplyFieldValidationMetadata(htmlHelper, modelMetadata, fullHtmlFieldName);
// rules will already have been written to the metadata object
fieldMetadata.ReplaceValidationMessageContents = replaceValidationMessageContents; // only replace contents if no explicit message was specified
if (htmlHelper.ViewContext.UnobtrusiveJavaScriptEnabled)
{
builder.MergeAttribute("data-valmsg-for", fullHtmlFieldName);
builder.MergeAttribute("data-valmsg-replace", replaceValidationMessageContents.ToString().ToLowerInvariant());
}
else
{
// client validation always requires an ID
builder.GenerateId(fullHtmlFieldName + "_validationMessage");
fieldMetadata.ValidationMessageId = builder.Attributes["id"];
}
}
//if (formContext != null)
//{
// bool replaceValidationMessageContents = String.IsNullOrEmpty(validationMessage);
// FieldValidationMetadata fieldMetadata = ApplyFieldValidationMetadata(htmlHelper, modelMetadata, modelName);
// // rules will already have been written to the metadata object
// fieldMetadata.ReplaceValidationMessageContents = replaceValidationMessageContents; // only replace contents if no explicit message was specified
// if (htmlHelper.ViewContext.UnobtrusiveJavaScriptEnabled)
// {
// builder.MergeAttribute("data-valmsg-for", modelName);
// builder.MergeAttribute("data-valmsg-replace", replaceValidationMessageContents.ToString().ToLowerInvariant());
// }
// else
// {
// // client validation always requires an ID
// builder.GenerateId(modelName + "_validationMessage");
// fieldMetadata.ValidationMessageId = builder.Attributes["id"];
// }
//}
return(new HtmlString(builder.ToString(TagRenderMode.Normal)));
}
