public static MvcHtmlString CustomLabelFor <TModel, TValue>(this HtmlHelper <TModel> html, Expression <Func <TModel, TValue> > expression, object htmlAttributes)
{
var metadata = ModelMetadata.FromLambdaExpression(expression, html.ViewData);
var resolvedLabelText = metadata.DisplayName ?? metadata.PropertyName;
if (metadata.IsRequired)
{
resolvedLabelText += "*";
}
return(LabelExtensions.LabelFor <TModel, TValue>(html, expression, resolvedLabelText, htmlAttributes));
}
internal static string ObjectTemplate(HtmlHelper html, TemplateHelpers.TemplateHelperDelegate templateHelper)
{
ViewDataDictionary viewData = html.ViewContext.ViewData;
TemplateInfo templateInfo = viewData.TemplateInfo;
ModelMetadata modelMetadata = viewData.ModelMetadata;
StringBuilder builder = new StringBuilder();
if (templateInfo.TemplateDepth > 1)
{
if (modelMetadata.Model == null)
{
return(modelMetadata.NullDisplayText);
}
// DDB #224751
string text = modelMetadata.SimpleDisplayText;
if (modelMetadata.HtmlEncode)
{
text = html.Encode(text);
}
return(text);
}
foreach (ModelMetadata propertyMetadata in modelMetadata.Properties.Where(pm => ShouldShow(pm, templateInfo)))
{
if (!propertyMetadata.HideSurroundingHtml)
{
string label = LabelExtensions.LabelHelper(html, propertyMetadata, propertyMetadata.PropertyName).ToHtmlString();
if (!String.IsNullOrEmpty(label))
{
builder.AppendFormat(CultureInfo.InvariantCulture, "<div class=\"editor-label\">{0}</div>\r\n", label);
}
builder.Append("<div class=\"editor-field\">");
}
builder.Append(templateHelper(html, propertyMetadata, propertyMetadata.PropertyName, null /* templateName */, DataBoundControlMode.Edit, null /* additionalViewData */));
if (!propertyMetadata.HideSurroundingHtml)
{
builder.Append(" ");
builder.Append(html.ValidationMessage(propertyMetadata.PropertyName));
builder.Append("</div>\r\n");
}
}
return(builder.ToString());
}
public static MvcHtmlString RequiredLabelFor <T, U>(this HtmlHelper <T> helper, Expression <Func <T, U> > expression, object htmlAttributes)
{
var metaData = ModelMetadata.FromLambdaExpression(expression, helper.ViewData);
string htmlFieldName = ExpressionHelper.GetExpressionText(expression);
string labelText = metaData.DisplayName
?? metaData.PropertyName
?? htmlFieldName.Split('.').Last();
if (metaData.IsRequired)
{
labelText += "*";
}
return(LabelExtensions.LabelFor(helper, expression, labelText, htmlAttributes));
}
