mvc4扩展方法
制作扩展方法,方便网页中使用,下面做了两个例子
using System; using System.Collections.Generic; using System.Linq; using System.Linq.Expressions; using System.Text; using System.Web; namespace System.Web.Mvc { public static class CheckBoxListHelper { public static MvcHtmlString CheckBoxList(this HtmlHelper helper, string[] showStr,string attrName, bool isHorizon = true) { if (showStr == null) return null; if (attrName == null) { attrName = "temp"; } StringBuilder sb = new StringBuilder(); int i=0; foreach (var item in showStr) { i++; sb.Append("<label class='checkbox-inline'>"); sb.Append(string.Format("<input type='checkbox' id='{0}' name='{0}' value='{1}'>{1}</input>", attrName + i, item)); sb.Append("</label>"); } return new MvcHtmlString(sb.ToString()); } /// <summary> /// 截取字符长度 /// </summary> /// <param name="helper"></param> /// <param name="showStr"></param> /// <param name="attrName"></param> /// <param name="isHorizon"></param> /// <returns></returns> public static MvcHtmlString GetStringSub(this HtmlHelper helper, string s, int len) { if (string.IsNullOrEmpty(s)) return new MvcHtmlString(""); if (s.Length <= len) return new MvcHtmlString(s.ToString()); else { return new MvcHtmlString("<span title='" + s + "'>" + s.Substring(0, len) + ".</span>"); } } } }