1 using System; 2 using System.Collections.Generic; 3 using System.Runtime.CompilerServices; 4 using System.Linq.Expressions; 5 6 namespace System.Web.Mvc 7 { 8 /// <summary> 9 /// Extended the HtmlHelper for Calendar 10 /// </summary> 11 public static class CalendarExtensions 12 { 13 private static string defaultFormat = "yyyy-MM-dd"; 14 15 /// <summary> 16 /// 使用特定的名称生成控件 17 /// </summary> 18 /// <param name="helper">HtmlHelper对象</param> 19 /// <param name="name">控件名称</param> 20 /// <returns>Html文本</returns> 21 public static MvcHtmlString Calendar(this HtmlHelper helper, string name) 22 { 23 return Calendar(helper, name, defaultFormat); 24 } 25 26 /// <summary> 27 /// 使用特定的名称生成控件 28 /// </summary> 29 /// <param name="helper">HtmlHelper对象</param> 30 /// <param name="name">控件名称</param> 31 /// <param name="format">显示格式</param> 32 /// <returns>Html文本</returns> 33 public static MvcHtmlString Calendar(this HtmlHelper helper, string name, string format) 34 { 35 return GenerateHtml(name, null, format); 36 } 37 38 /// <summary> 39 /// 使用特定的名称和初始值生成控件 40 /// </summary> 41 /// <param name="helper">HtmlHelper对象</param> 42 /// <param name="name">控件名称</param> 43 /// <param name="date">要显示的日期时间</param> 44 /// <returns>Html文本</returns> 45 public static MvcHtmlString Calendar(this HtmlHelper helper, string name, DateTime date) 46 { 47 return Calendar(helper, name, date, defaultFormat); 48 } 49 50 /// <summary> 51 /// 使用特定的名称和初始值生成控件 52 /// </summary> 53 /// <param name="helper">HtmlHelper对象</param> 54 /// <param name="name">控件名称</param> 55 /// <param name="date">要显示的日期时间</param> 56 /// <param name="format">显示格式</param> 57 /// <returns>Html文本</returns> 58 public static MvcHtmlString Calendar(this HtmlHelper helper, string name, DateTime date, string format) 59 { 60 return GenerateHtml(name, date, format); 61 } 62 63 /// <summary> 64 /// 通过lambda表达式生成控件 65 /// </summary> 66 /// <param name="helper">HtmlHelper对象</param> 67 /// <param name="expression">lambda表达式，指定要显示的属性及其所属对象</param> 68 /// <returns>Html文本</returns> 69 public static MvcHtmlString CalendarFor<TModel, TProperty>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TProperty>> expression) 70 { 71 72 return CalendarFor(helper, expression, defaultFormat); 73 } 74 75 /// <summary> 76 /// 通过lambda表达式生成控件 77 /// </summary> 78 /// <param name="helper">HtmlHelper对象</param> 79 /// <param name="expression">lambda表达式，指定要显示的属性及其所属对象</param> 80 /// <param name="format">显示格式</param> 81 /// <returns>Html文本</returns> 82 public static MvcHtmlString CalendarFor<TModel, TProperty>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TProperty>> expression, string format) 83 { 84 string name = ExpressionHelper.GetExpressionText(expression); 85 DateTime value; 86 87 object data = ModelMetadata.FromLambdaExpression<TModel, TProperty>(expression, helper.ViewData).Model; 88 if (data != null && DateTime.TryParse(data.ToString(), out value)) 89 { 90 return GenerateHtml(name, value, format); 91 } 92 else 93 { 94 return GenerateHtml(name, null, format); 95 } 96 } 97 98 /// <summary> 99 /// 通过lambda表达式获取要显示的日期时间 100 /// </summary> 101 /// <param name="helper">HtmlHelper对象</param> 102 /// <param name="expression">lambda表达式，指定要显示的属性及其所属对象</param> 103 /// <param name="format">显示格式</param> 104 /// <returns>Html文本</returns> 105 public static MvcHtmlString CalendarDisplayFor<TModel, TProperty>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TProperty>> expression, string format) 106 { 107 string name = ExpressionHelper.GetExpressionText(expression); 108 DateTime value; 109 string Htmlstr = ""; 110 object data = ModelMetadata.FromLambdaExpression<TModel, TProperty>(expression, helper.ViewData).Model; 111 if (data != null && DateTime.TryParse(data.ToString(), out value)) 112 { 113 Htmlstr = value.ToString(format); 114 } 115 else 116 { 117 Htmlstr = string.Empty; 118 } 119 return MvcHtmlString.Create(Htmlstr); 120 } 121 122 /// <summary> 123 /// 通过lambda表达式获取要显示的日期时间 124 /// </summary> 125 /// <param name="helper">HtmlHelper对象</param> 126 /// <param name="expression">lambda表达式，指定要显示的属性及其所属对象</param> 127 /// <returns>Html文本</returns> 128 public static MvcHtmlString CalendarDisplayFor<TModel, TProperty>(this HtmlHelper<TModel> helper, Expression<Func<TModel, TProperty>> expression) 129 { 130 return CalendarDisplayFor(helper, expression, defaultFormat); 131 } 132 133 /// <summary> 134 /// 生成输入框的Html 135 /// </summary> 136 /// <param name="name">calendar的名称</param> 137 /// <param name="date">calendar的值</param> 138 /// <returns>html文本</returns> 139 private static MvcHtmlString GenerateHtml(string name, DateTime? date, string format) 140 { 141 string Htmlstr = ""; 142 if (date != null) 143 { 144 Htmlstr = "<input type="text" id="" + name + "" name="" + name + "" onfocus="WdatePicker({dateFmt:'" + format + "'})" class="Wdate" value="" + date.Value.ToString(format) + "" />"; 145 } 146 else 147 { 148 Htmlstr = "<input type="text" id="" + name + "" name="" + name + "" onfocus="WdatePicker({dateFmt:'" + format + "'})" class="Wdate" value="" />"; 149 } 150 return MvcHtmlString.Create(Htmlstr); 151 } 152 } 153 }
使用方法
<td class="ms-ri">出生日期:</td> <td style="vertical-align: middle"> @Html.CalendarFor(m => m.Birthday) </td>
OK.结束