using System;
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using System.Collections.Specialized;
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using System.Linq;
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using System.Linq.Expressions;
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using System.Reflection;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Web;
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using System.Web.Mvc;
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using System.Web.Mvc.Html;
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using System.Web.Routing;
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using System.Xml.Linq;
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using System.ComponentModel.DataAnnotations;
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using Pcb.Domain.DataAnnotationsAttribute;
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namespace Pcb.Common.Utilities
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{
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public static class HtmlHelpers
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{
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public static MvcHtmlString GetSubString(this HtmlHelper helper, string str, int n)
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{
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return MvcHtmlString.Create(HtmlHelpers.GetSubString(str, n));
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}
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public static MvcHtmlString Summary(this HtmlHelper helper, string str, int n)
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{
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str = HtmlHelpers.StripTagsRegex(str);
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return MvcHtmlString.Create(HtmlHelpers.GetSubString(str, n));
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}
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private static string StripTagsRegex(string source)
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{
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return Regex.Replace(source, "<.*?>", string.Empty);
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}
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private static string GetSubString(string str, int n)
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{
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string temp = string.Empty;
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if (System.Text.Encoding.Default.GetByteCount(str) <= n)//如果长度比需要的长度n小,返回原字符串
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{
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return str;
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}
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else
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{
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int t = 0;
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char[] q = str.ToCharArray();
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for (int i = 0; i < q.Length; i++)
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{
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if ((int)q[i] >= 0x4E00 && (int)q[i] <= 0x9FA5)//是否汉字
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{
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temp += q[i];
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t += 2;
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}
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else
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{
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temp += q[i];
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t += 1;
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}
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if (t >= n)
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{
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return (temp + "...");
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}
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}
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return temp;
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}
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}
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/// <summary>
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/// 创建分页链接
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/// </summary>
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/// <param name="helper">HtmlHelper类</param>
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/// <param name="startPage">开始页 (多数情况下是 1)</param>
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/// <param name="currentPage">当前页</param>
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/// <param name="totalPages">总页数</param>
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/// <param name="pagesToShow">前后显示的页数</param>
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public static MvcHtmlString Pager(this HtmlHelper helper, int startPage, int currentPage, int totalPages, int pagesToShow)
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{
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RouteData routeData = helper.ViewContext.RouteData;
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//你可能还要获取action
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string action = routeData.Values["action"].ToString();
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string controller = routeData.Values["controller"].ToString();
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StringBuilder html = new StringBuilder();
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//创建从第一页到最后一页的列表
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html = Enumerable.Range(startPage, totalPages)
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.Where(i => (currentPage - pagesToShow) < i & i < (currentPage + pagesToShow))
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.Aggregate(new StringBuilder(@"<div class=""pagination""><span class=""total"">共" + totalPages + "页</span>"), (seed, page) =>
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{
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//当前页
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if (page == currentPage)
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{
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seed.AppendFormat("<span class=\"current\">{0}</span>", page);
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}
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else
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{
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//第一页时显示：domain/archives
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UrlHelper url = new UrlHelper(helper.ViewContext.RequestContext);
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NameValueCollection col = helper.ViewContext.RequestContext.HttpContext.Request.QueryString;
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var values = new RouteValueDictionary(new { p = page });
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if (col != null)
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{
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foreach (string key in col)
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{
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//values passed in object override those already in collection
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if (!values.ContainsKey(key)) values[key] = col[key];
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}
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}
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seed.AppendFormat("<a href=\"{0}\">{1}</a>", url.Action(action, controller, values), page);
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}
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return seed;
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});
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html.Append(@"</div>");
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return MvcHtmlString.Create(html.ToString());
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}
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//public static MvcHtmlString OrderStatusFor<TModel, TValue>(this HtmlHelper<TModel> html, Expression<Func<TModel, TValue>> expression)
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//{
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// MvcHtmlString str = html.DisplayFor(expression);
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// string test = str.ToString();
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// SelectListItem item = Orders.AllPaymentStatus.Single(m => m.Value.Equals(test) == true);
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// return MvcHtmlString.Create(item.Text);
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//}
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//public static MvcHtmlString PaymentGatewayFor<TModel, TValue>(this HtmlHelper<TModel> html, Expression<Func<TModel, TValue>> expression)
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//{
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// MvcHtmlString str = html.DisplayFor(expression);
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// string test = str.ToString();
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// if (test != null && test.Length > 0)
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// {
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// SelectListItem item = Orders.AllPaymentGateway.Single(m => m.Value.Equals(test) == true);
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// return MvcHtmlString.Create(item.Text);
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// }
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// return MvcHtmlString.Create("");
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//}
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public static MvcHtmlString YNStatus<TModel, TValue>(this HtmlHelper<TModel> html, Expression<Func<TModel, TValue>> expression)
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{
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MvcHtmlString str = html.DisplayFor(expression);
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StringBuilder sb = new StringBuilder();
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switch (str.ToString())
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{
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case "0":
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sb.Append("否");
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break;
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default:
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sb.Append("是");
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break;
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}
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return MvcHtmlString.Create(sb.ToString());
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}
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public static MvcHtmlString SnStatus<TModel, TValue>(this HtmlHelper<TModel> html, Expression<Func<TModel, TValue>> expression)
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{
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MvcHtmlString str = html.DisplayFor(expression);
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StringBuilder sb = new StringBuilder();
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switch (str.ToString())
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{
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case "0":
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sb.Append("无效");
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break;
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case "1":
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sb.Append("有效");
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break;
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}
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return MvcHtmlString.Create(sb.ToString());
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}
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public static MvcHtmlString MemberTypeFor<TModel, TValue>(this HtmlHelper<TModel> html, Expression<Func<TModel, TValue>> expression)
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{
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MvcHtmlString str = html.DisplayFor(expression);
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StringBuilder sb = new StringBuilder();
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switch (str.ToString())
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{
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case "Staff":
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sb.Append("内部员工");
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break;
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case "Star3":
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sb.Append("三星代理");
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break;
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case "Star4":
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sb.Append("四星代理");
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break;
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case "Star5":
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sb.Append("五星代理");
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break;
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case "Members":
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sb.Append("普通会员");
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break;
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default:
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sb.Append(str);
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break;
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}
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return MvcHtmlString.Create(sb.ToString());
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}
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//public static MvcHtmlString MemberByUid(this HtmlHelper helper, Guid uid)
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//{
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// PortalSitesEntities db = new PortalSitesEntities();
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// StringBuilder sb = new StringBuilder();
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// Members Members = db.Members.SingleOrDefault(m => m.Uid == uid);
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// if (null != Members)
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// {
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// sb.Append(Members.UserName);
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// }
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// return MvcHtmlString.Create(sb.ToString());
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//}
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//public static MvcHtmlString Block(this HtmlHelper helper, string code)
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//{
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// PortalSitesEntities db = new PortalSitesEntities();
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// Blocks block = db.Blocks.SingleOrDefault(m => m.Code == code);
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// if (null != block)
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// {
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// return MvcHtmlString.Create(block.Content);
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// }
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// else
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// {
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// return MvcHtmlString.Create("{" + code + "}");
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// }
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//}
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//public static MvcHtmlString WxJsConfig(this HtmlHelper helper)
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//{
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// int platId = MyCore.plat;
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// Entity.ViewModel.ClientCredentialEntity credential = new ClientCredentialBll().GetClientCredentialEntityByWeixinID(platId);
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// string ticket = new ClientCredentialBll().GetJsapiTicket(platId);
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// string nonceStr = Common.RandomHelper.GetRandomString(16, true, true, true, false, "");
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// DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
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// string timestamp = "" + (int)(DateTime.UtcNow - UnixEpoch).TotalSeconds;
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// string url = HttpContext.Current.Request.Url.AbsoluteUri;
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// string rawString = String.Format("jsapi_ticket={0}&noncestr={1}×tamp={2}&url={3}", ticket, nonceStr, timestamp, url);
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// string signature = CommonMd5.SHA1_Encrypt(rawString);
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// StringBuilder output = new StringBuilder();
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// output.Append("wx.config({");
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// output.Append(" debug: false,");
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// output.AppendFormat(" appId: '{0}',", credential.AppId);
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// output.AppendFormat(" timestamp: '{0}',", timestamp);
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// output.AppendFormat(" nonceStr: '{0}',", nonceStr);
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// output.AppendFormat(" signature: '{0}',", signature);
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// output.Append(" jsApiList: ['checkJsApi','onMenuShareTimeline','onMenuShareAppMessage','hideMenuItems','showMenuItems','chooseWXPay']");
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// output.Append("});");
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// return MvcHtmlString.Create(output.ToString()); ;
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//}
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//public static MvcHtmlString QuesOptionsFor<TModel, TValue>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TValue>> expression)
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//{
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// StringBuilder output = new StringBuilder();
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// ModelMetadata metadata = ModelMetadata.FromLambdaExpression(expression, helper.ViewData);
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// Object obj = helper.ViewData.Model;
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// String name = metadata.PropertyName;
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// MetadataTypeAttribute[] metadataTypes = obj.GetType().GetCustomAttributes(typeof(MetadataTypeAttribute), true).OfType<MetadataTypeAttribute>().ToArray();
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// MetadataTypeAttribute metadatas = metadataTypes.FirstOrDefault();
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// if (metadatas != null)
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// {
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// PropertyInfo[] properties = metadatas.MetadataClassType.GetProperties();
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// PropertyInfo field222 = properties.Where(t => t.Name == name).FirstOrDefault();
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// //QuesOptionsAttribute options = ((QuesOptionsAttribute[])field222.GetCustomAttributes(typeof(QuesOptionsAttribute), false)).FirstOrDefault();
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// //PropertyInfo field = obj.GetType().GetProperty(name);
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// //QuesOptionsAttribute options = ((QuesOptionsAttribute[])field.GetCustomAttributes(typeof(QuesOptionsAttribute), false)).FirstOrDefault();
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// if (null == options)
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// {
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// return MvcHtmlString.Empty;
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// }
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// string[] opts = options.Options.Split(',');
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// foreach (string opt in opts)
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// {
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// output.Append("<label>");
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// output.Append(helper.RadioButtonFor(expression, opt.Trim()));
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// output.Append(opt.Trim());
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// output.Append("</label> ");
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// }
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// }
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// return MvcHtmlString.Create(output.ToString());
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//}
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//public static MvcHtmlString QuesCheckedOptionsFor<TModel, TValue>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TValue>> expression)
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//{
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// StringBuilder output = new StringBuilder();
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// ModelMetadata metadata = ModelMetadata.FromLambdaExpression(expression, helper.ViewData);
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// Object obj = helper.ViewData.Model;
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// String name = metadata.PropertyName;
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// MetadataTypeAttribute[] metadataTypes = obj.GetType().GetCustomAttributes(typeof(MetadataTypeAttribute), true).OfType<MetadataTypeAttribute>().ToArray();
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// MetadataTypeAttribute metadatas = metadataTypes.FirstOrDefault();
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// if (metadatas != null)
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// {
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// PropertyInfo[] properties = metadatas.MetadataClassType.GetProperties();
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// PropertyInfo field222 = properties.Where(t => t.Name == name).FirstOrDefault();
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// QuesOptionsAttribute options = ((QuesOptionsAttribute[])field222.GetCustomAttributes(typeof(QuesOptionsAttribute), false)).FirstOrDefault();
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// //PropertyInfo field = obj.GetType().GetProperty(name);
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// //QuesOptionsAttribute options = ((QuesOptionsAttribute[])field.GetCustomAttributes(typeof(QuesOptionsAttribute), false)).FirstOrDefault();
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// if (null == options)
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// {
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// return MvcHtmlString.Empty;
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// }
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// string[] opts = options.Options.Split(',');
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// foreach (string opt in opts)
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// {
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// output.Append("<label>");
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// output.Append(" <input type=\"checkbox\" name=\"" + name + "\" value=\"" + opt.Trim() + "\" />" + opt.Trim());
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// output.Append("</label> ");
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// }
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// }
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// return MvcHtmlString.Create(output.ToString());
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//}
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public static MvcHtmlString CalenderTextBoxFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, object htmlAttributes = null)
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{
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var mvcHtmlString = InputExtensions.TextBoxFor(htmlHelper, expression, htmlAttributes ?? new { @class = "text-box single-line date-picker" });
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var xDoc = XDocument.Parse(mvcHtmlString.ToHtmlString());
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var xElement = xDoc.Element("input");
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if (xElement != null)
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{
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var valueAttribute = xElement.Attribute("value");
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if (valueAttribute != null)
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{
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valueAttribute.Value = DateTime.Parse(valueAttribute.Value).ToShortDateString();
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if (valueAttribute.Value == "1/1/0001")
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valueAttribute.Value = string.Empty;
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}
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}
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return new MvcHtmlString(xDoc.ToString());
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}
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}
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}
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