Asp.Net MVC 2 LabelFor Custom Text
Is there a way to use the LabelFor helper and customize the label te开发者_如何学JAVAxt without having to use the DisplayNameAttribute in my model?
I have created this html helpers for my project:
public static class MyLabelExtensions
{
public static MvcHtmlString Label(this HtmlHelper htmlHelper, string forName, string labelText)
{
return Label(htmlHelper, forName, labelText, (object) null);
}
public static MvcHtmlString Label(this HtmlHelper htmlHelper, string forName, string labelText,
object htmlAttributes)
{
return Label(htmlHelper, forName, labelText, new RouteValueDictionary(htmlAttributes));
}
public static MvcHtmlString Label(this HtmlHelper htmlHelper, string forName, string labelText,
IDictionary<string, object> htmlAttributes)
{
var tagBuilder = new TagBuilder("label");
tagBuilder.MergeAttributes(htmlAttributes);
tagBuilder.MergeAttribute("for", forName.Replace(".", tagBuilder.IdAttributeDotReplacement), true);
tagBuilder.SetInnerText(labelText);
return MvcHtmlString.Create(tagBuilder.ToString(TagRenderMode.Normal));
}
public static MvcHtmlString LabelFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper,
Expression<Func<TModel, TProperty>> expression,
string labelText)
{
return LabelFor(htmlHelper, expression, labelText, (object) null);
}
public static MvcHtmlString LabelFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper,
Expression<Func<TModel, TProperty>> expression,
string labelText, object htmlAttributes)
{
return LabelFor(htmlHelper, expression, labelText, new RouteValueDictionary(htmlAttributes));
}
public static MvcHtmlString LabelFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper,
Expression<Func<TModel, TProperty>> expression,
string labelText,
IDictionary<string, object> htmlAttributes)
{
string inputName = ExpressionHelper.GetExpressionText(expression);
return htmlHelper.Label(inputName, labelText, htmlAttributes);
}
}
I use them with "strongly typed" resources:
<%= Html.LabelFor(m=>m.NickName, UserStrings.NickName) %>
Hope that helps...
There is a new LabelFor overload in MVC3 RC that allows you to specify the labelText.
Why not just create your own Html Helper?
public static class MVCHelpers
{
public static string CustomLabelFor(this HtmlHelper helper, string ...)
{
return "<label ... </label>"
}
}
I have found this extemely useful. I think this is something missing from MVC 2. Or at least I have not found a way to do it built in.
The simplest case details the need for this feature. I have two objects Contacts and Addresses. A Contact can have multiple Addesses
Address
- ID
- Street
- City
- State
Contact
- ID
- Bus Address ID
- Home Address ID
Now for a form which edits or displays a Contact, being able to change the DisplayNameAttribute on the Address 'Street' property is not very helpful since I really want one field to be 'Business Street' and another to be 'Home Street'.
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