HtmlHelper.Label.cs

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System.Collections.Generic;
using System.Web.Mvc;
using Microsoft.Internal.Web.Utils;

namespace System.Web.WebPages.Html
{
    public partial class HtmlHelper
    {
        public IHtmlString Label(string labelText)
        {
            return Label(labelText, null, (IDictionary<string, object>)null);
        }

        public IHtmlString Label(string labelText, string labelFor)
        {
            return Label(labelText, labelFor, (IDictionary<string, object>)null);
        }

        public IHtmlString Label(string labelText, object attributes)
        {
            return Label(labelText, null, AnonymousObjectToHtmlAttributes(attributes));
        }

        public IHtmlString Label(string labelText, string labelFor, object attributes)
        {
            return Label(labelText, labelFor, AnonymousObjectToHtmlAttributes(attributes));
        }

        public IHtmlString Label(string labelText, string labelFor, IDictionary<string, object> attributes)
        {
            if (String.IsNullOrEmpty(labelText))
            {
                throw new ArgumentException(CommonResources.Argument_Cannot_Be_Null_Or_Empty, "labelText");
            }

            labelFor = labelFor ?? labelText;

            TagBuilder tag = new TagBuilder("label") { InnerHtml = Encode(labelText) };

            if (!String.IsNullOrEmpty(labelFor))
            {
                tag.MergeAttribute("for", labelFor);
            }
            tag.MergeAttributes(attributes, false);

            return tag.ToHtmlString(TagRenderMode.Normal);
        }
    }
}