【C#公共帮助类】 WebHelper帮助类
如果你是一个新手，如果你刚接触MVC，如果你跟着置顶的那个项目，我们肯定会用到这里面的几个帮助类
它们都在Common类库下，大家一定要记住要点：取其精华去其糟粕，切勿拿来主义~
ApplicationCache.cs
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Web; 6 7 namespace Common 8 { 9 public interface ICache 10 { 11 /// <summary> 12 /// 获取全局应用缓存 13 /// </summary> 14 /// <param name="key"></param> 15 /// <returns></returns> 16 object GetApplicationCache(string key); 17 /// <summary> 18 /// 设置全局应用缓存 19 /// </summary> 20 /// <param name="key"></param> 21 /// <param name="obj"></param> 22 void SetApplicationCache(string key, object obj); 23 /// <summary> 24 /// 删除全局应用缓存 25 /// </summary> 26 /// <param name="key"></param> 27 void RemoveApplicationCache(string key); 28 } 29 /// <summary> 30 /// 全局应用缓存 31 /// </summary> 32 public class ApplicationCache:ICache 33 { 34 #region ICache 成员 35 36 public object GetApplicationCache(string key) 37 { 38 return HttpContext.Current.Application[key]; 39 } 40 41 public void SetApplicationCache(string key, object obj) 42 { 43 HttpContext.Current.Application.Add(key, obj); 44 } 45 46 public void RemoveApplicationCache(string key) 47 { 48 HttpContext.Current.Application.Remove(key); 49 } 50 #endregion 51 } 52 }
BindDataControl.cs
1 using System.Web.UI.WebControls; 2 using System.Web.UI; 3 using System.Data; 4 using System.Data.SqlClient; 5 6 namespace Common 7 { 8 /// <summary> 9 /// 数据展示控件 绑定数据类 10 /// </summary> 11 public class BindDataControl 12 { 13 #region 绑定服务器数据控件 简单绑定DataList 14 /// <summary> 15 /// 简单绑定DataList 16 /// </summary> 17 /// <param name="ctrl">控件ID</param> 18 /// <param name="mydv">数据视图</param> 19 public static void BindDataList(Control ctrl, DataView mydv) 20 { 21 ((DataList)ctrl).DataSourceID = null; 22 ((DataList)ctrl).DataSource = mydv; 23 ((DataList)ctrl).DataBind(); 24 } 25 #endregion 26 27 #region 绑定服务器数据控件 SqlDataReader简单绑定DataList 28 /// <summary> 29 /// SqlDataReader简单绑定DataList 30 /// </summary> 31 /// <param name="ctrl">控件ID</param> 32 /// <param name="mydv">数据视图</param> 33 public static void BindDataReaderList(Control ctrl, SqlDataReader mydv) 34 { 35 ((DataList)ctrl).DataSourceID = null; 36 ((DataList)ctrl).DataSource = mydv; 37 ((DataList)ctrl).DataBind(); 38 } 39 #endregion 40 41 #region 绑定服务器数据控件 简单绑定GridView 42 /// <summary> 43 /// 简单绑定GridView 44 /// </summary> 45 /// <param name="ctrl">控件ID</param> 46 /// <param name="mydv">数据视图</param> 47 public static void BindGridView(Control ctrl, DataView mydv) 48 { 49 ((GridView)ctrl).DataSourceID = null; 50 ((GridView)ctrl).DataSource = mydv; 51 ((GridView)ctrl).DataBind(); 52 } 53 #endregion 54 55 /// <summary> 56 /// 绑定服务器控件 简单绑定Repeater 57 /// </summary> 58 /// <param name="ctrl">控件ID</param> 59 /// <param name="mydv">数据视图</param> 60 public static void BindRepeater(Control ctrl, DataView mydv) 61 { 62 ((Repeater)ctrl).DataSourceID = null; 63 ((Repeater)ctrl).DataSource = mydv; 64 ((Repeater)ctrl).DataBind(); 65 } 66 } 67 }
CacheHelper.cs
1 using System; 2 using System.Web; 3 using System.Collections; 4 5 namespace Common 6 { 7 /// <summary> 8 /// 缓存辅助类 9 /// </summary> 10 public class CacheHelper 11 { 12 /// <summary> 13 /// 获取数据缓存 14 /// </summary> 15 /// <param name="CacheKey">键</param> 16 public static object GetCache(string CacheKey) 17 { 18 System.Web.Caching.Cache objCache = HttpRuntime.Cache; 19 return objCache[CacheKey]; 20 } 21 22 /// <summary> 23 /// 设置数据缓存 24 /// </summary> 25 public static void SetCache(string CacheKey, object objObject) 26 { 27 System.Web.Caching.Cache objCache = HttpRuntime.Cache; 28 objCache.Insert(CacheKey, objObject); 29 } 30 31 /// <summary> 32 /// 设置数据缓存 33 /// </summary> 34 public static void SetCache(string CacheKey, object objObject, TimeSpan Timeout) 35 { 36 System.Web.Caching.Cache objCache = HttpRuntime.Cache; 37 objCache.Insert(CacheKey, objObject, null, DateTime.MaxValue, Timeout, System.Web.Caching.CacheItemPriority.NotRemovable, null); 38 } 39 40 /// <summary> 41 /// 设置数据缓存 42 /// </summary> 43 public static void SetCache(string CacheKey, object objObject, DateTime absoluteExpiration, TimeSpan slidingExpiration) 44 { 45 System.Web.Caching.Cache objCache = HttpRuntime.Cache; 46 objCache.Insert(CacheKey, objObject, null, absoluteExpiration, slidingExpiration); 47 } 48 49 /// <summary> 50 /// 移除指定数据缓存 51 /// </summary> 52 public static void RemoveAllCache(string CacheKey) 53 { 54 System.Web.Caching.Cache _cache = HttpRuntime.Cache; 55 _cache.Remove(CacheKey); 56 } 57 58 /// <summary> 59 /// 移除全部缓存 60 /// </summary> 61 public static void RemoveAllCache() 62 { 63 System.Web.Caching.Cache _cache = HttpRuntime.Cache; 64 IDictionaryEnumerator CacheEnum = _cache.GetEnumerator(); 65 while (CacheEnum.MoveNext()) 66 { 67 _cache.Remove(CacheEnum.Key.ToString()); 68 } 69 } 70 } 71 }
CookieHelper.cs
1 using System; 2 using System.Web; 3 4 namespace Common 5 { 6 /// <summary> 7 /// Cookie辅助类 8 /// </summary> 9 public class CookieHelper 10 { 11 /// <summary> 12 /// 清除指定Cookie 13 /// </summary> 14 /// <param name="cookiename">cookiename</param> 15 public static void ClearCookie(string cookiename) 16 { 17 HttpCookie cookie = HttpContext.Current.Request.Cookies[cookiename]; 18 if (cookie != null) 19 { 20 TimeSpan ts = new TimeSpan(-1, 0, 0, 0); 21 cookie.Expires = DateTime.Now.Add(ts); 22 HttpContext.Current.Response.AppendCookie(cookie); 23 HttpContext.Current.Request.Cookies.Remove(cookiename); 24 } 25 } 26 /// <summary> 27 /// 获取指定Cookie值 28 /// </summary> 29 /// <param name="cookiename">cookiename</param> 30 /// <returns></returns> 31 public static string GetCookieValue(string cookiename) 32 { 33 HttpCookie cookie = HttpContext.Current.Request.Cookies[cookiename]; 34 string str = string.Empty; 35 if (cookie != null) 36 { 37 str = cookie.Value; 38 } 39 return str; 40 } 41 /// <summary> 42 /// 获取cookie 43 /// </summary> 44 /// <param name="cookiename"></param> 45 /// <returns></returns> 46 public static HttpCookie GetCookie(string cookiename) 47 { 48 return HttpContext.Current.Request.Cookies[cookiename]; 49 } 50 /// <summary> 51 /// 添加一个Cookie，默认浏览器关闭过期 52 /// </summary> 53 public static void SetCookie(string cookiename, System.Collections.Specialized.NameValueCollection cookievalue, int? days) 54 { 55 var cookie = HttpContext.Current.Request.Cookies[cookiename]; 56 if (cookie == null) 57 { 58 cookie = new HttpCookie(cookiename); 59 } 60 ClearCookie(cookiename); 61 cookie.Values.Add(cookievalue); 62 var siteurl = System.Configuration.ConfigurationManager.AppSettings["siteurl"]; 63 if (!string.IsNullOrEmpty(siteurl)) 64 { 65 cookie.Domain = siteurl.Replace("www.", ""); 66 } 67 if (days != null && days > 0) { cookie.Expires = DateTime.Now.AddDays(Convert.ToInt32(days)); } 68 HttpContext.Current.Response.AppendCookie(cookie); 69 70 } 71 /// <summary> 72 /// 添加一个Cookie 73 /// </summary> 74 /// <param name="cookiename">cookie名</param> 75 /// <param name="cookievalue">cookie值</param> 76 /// <param name="expires">过期时间 null为浏览器过期</param> 77 public static void SetCookie(string cookiename, string cookievalue, int? expires) 78 { 79 var cookie = HttpContext.Current.Request.Cookies[cookiename]; 80 if (cookie == null) 81 { 82 cookie = new HttpCookie(cookiename); 83 } 84 ClearCookie(cookiename); 85 cookie = new HttpCookie(cookiename); 86 cookie.Value = cookievalue; 87 var siteurl = System.Configuration.ConfigurationManager.AppSettings["siteurl"]; 88 if (!string.IsNullOrEmpty(siteurl)) 89 { 90 cookie.Domain = siteurl.Replace("www.", ""); 91 } 92 if (expires != null && expires > 0) { cookie.Expires = DateTime.Now.AddDays(Convert.ToInt32(expires)); } 93 HttpContext.Current.Response.AppendCookie(cookie); 94 95 } 96 } 97 }
JScript.cs
1 using System; 2 using System.Data; 3 using System.Configuration; 4 using System.Web; 5 using System.Web.Security; 6 using System.Web.UI; 7 using System.Web.UI.WebControls; 8 using System.Web.UI.WebControls.WebParts; 9 using System.Web.UI.HtmlControls; 10 11 namespace Common 12 { 13 /// <summary> 14 /// 一些常用的Js调用 15 /// 添加新版说明：由于旧版普遍采用Response.Write(string msg)的方式输出js脚本，这种 16 /// 方式输出的js脚本会在html元素的<html></html>标签之外，破坏了整个xhtml的结构, 17 /// 而新版本则采用ClientScript.RegisterStartupScript(string msg)的方式输出，不会改变xhtml的结构, 18 /// 不会影响执行效果。 19 /// 为了向下兼容，所以新版本采用了重载的方式，新版本中要求一个System.Web.UI.Page类的实例。 20 /// </summary> 21 public class JScript 22 { 23 #region 旧版本 24 /// <summary> 25 /// 弹出JavaScript小窗口 26 /// </summary> 27 /// <param name="message">窗口信息</param> 28 public static void Alert(string message) 29 { 30 #region 31 string js = @"<Script language='JavaScript'> 32 alert('" + message + "');</Script>"; 33 HttpContext.Current.Response.Write(js); 34 #endregion 35 } 36 37 /// <summary> 38 /// 弹出消息框并且转向到新的URL 39 /// </summary> 40 /// <param name="message">消息内容</param> 41 /// <param name="toURL">连接地址</param> 42 public static void AlertAndRedirect(string message, string toURL) 43 { 44 #region 45 string js = "<script language=javascript>alert('{0}');window.location.replace('{1}')</script>"; 46 HttpContext.Current.Response.Write(string.Format(js, message, toURL)); 47 #endregion 48 } 49 50 /// <summary> 51 /// 回到历史页面 52 /// </summary> 53 /// <param name="value">-1/1</param> 54 public static void GoHistory(int value) 55 { 56 #region 57 string js = @"<Script language='JavaScript'> 58 history.go({0}); 59 </Script>"; 60 HttpContext.Current.Response.Write(string.Format(js, value)); 61 #endregion 62 } 63 64 /// <summary> 65 /// 关闭当前窗口 66 /// </summary> 67 public static void CloseWindow() 68 { 69 #region 70 string js = @"<Script language='JavaScript'> 71 parent.opener=null;window.close(); 72 </Script>"; 73 HttpContext.Current.Response.Write(js); 74 HttpContext.Current.Response.End(); 75 #endregion 76 } 77 78 /// <summary> 79 /// 刷新父窗口 80 /// </summary> 81 public static void RefreshParent(string url) 82 { 83 #region 84 string js = @"<Script language='JavaScript'> 85 window.opener.location.href='" + url + "';window.close();</Script>"; 86 HttpContext.Current.Response.Write(js); 87 #endregion 88 } 89 90 91 /// <summary> 92 /// 刷新打开窗口 93 /// </summary> 94 public static void RefreshOpener() 95 { 96 #region 97 string js = @"<Script language='JavaScript'> 98 opener.location.reload(); 99 </Script>"; 100 HttpContext.Current.Response.Write(js); 101 #endregion 102 } 103 104 105 /// <summary> 106 /// 打开指定大小的新窗体 107 /// </summary> 108 /// <param name="url">地址</param> 109 /// <param name="width">宽</param> 110 /// <param name="heigth">高</param> 111 /// <param name="top">头位置</param> 112 /// <param name="left">左位置</param> 113 public static void OpenWebFormSize(string url, int width, int heigth, int top, int left) 114 { 115 #region 116 string js = @"<Script language='JavaScript'>window.open('" + url + @"','','height=" + heigth + ",width=" + width + ",top=" + top + ",left=" + left + ",location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,titlebar=no,toolbar=no,directories=no');</Script>"; 117 118 HttpContext.Current.Response.Write(js); 119 #endregion 120 } 121 122 123 /// <summary> 124 /// 转向Url制定的页面 125 /// </summary> 126 /// <param name="url">连接地址</param> 127 public static void JavaScriptLocationHref(string url) 128 { 129 #region 转向按钮Js 130 string js = @"<Script language='JavaScript'> 131 window.location.replace('{0}'); 132 </Script>"; 133 js = string.Format(js, url); 134 HttpContext.Current.Response.Write(js); 135 #endregion 136 } 137 138 /// <summary> 139 /// 打开指定大小位置的模式对话框 140 /// </summary> 141 /// <param name="webFormUrl">连接地址</param> 142 /// <param name="width">宽</param> 143 /// <param name="height">高</param> 144 /// <param name="top">距离上位置</param> 145 /// <param name="left">距离左位置</param> 146 public static void ShowModalDialogWindow(string webFormUrl, int width, int height, int top, int left) 147 { 148 #region 大小位置 149 string features = "dialogWidth:" + width.ToString() + "px" 150 + ";dialogHeight:" + height.ToString() + "px" 151 + ";dialogLeft:" + left.ToString() + "px" 152 + ";dialogTop:" + top.ToString() + "px" 153 + ";center:yes;help=no;resizable:no;status:no;scroll=yes"; 154 ShowModalDialogWindow(webFormUrl, features); 155 #endregion 156 } 157 /// <summary> 158 /// 弹出模态窗口 159 /// </summary> 160 /// <param name="webFormUrl"></param> 161 /// <param name="features"></param> 162 public static void ShowModalDialogWindow(string webFormUrl, string features) 163 { 164 string js = ShowModalDialogJavascript(webFormUrl, features); 165 HttpContext.Current.Response.Write(js); 166 } 167 /// <summary> 168 /// 弹出模态窗口 169 /// </summary> 170 /// <param name="webFormUrl"></param> 171 /// <param name="features"></param> 172 /// <returns></returns> 173 public static string ShowModalDialogJavascript(string webFormUrl, string features) 174 { 175 #region 模态窗口 176 string js = @"<script language=javascript> 177 showModalDialog('" + webFormUrl + "','','" + features + "');</script>"; 178 return js; 179 #endregion 180 } 181 #endregion 182 183 #region 新版本 184 /// <summary> 185 /// 弹出JavaScript小窗口 186 /// </summary> 187 /// <param name="message">窗口信息</param> 188 /// <param name="page">Page类的实例</param> 189 public static void Alert(string message, Page page) 190 { 191 #region 192 string js = @"<Script language='JavaScript'> 193 alert('" + message + "');</Script>"; 194 if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "alert")) 195 { 196 page.ClientScript.RegisterStartupScript(page.GetType(), "alert", js); 197 } 198 #endregion 199 } 200 201 /// <summary> 202 /// 弹出消息框并且转向到新的URL 203 /// </summary> 204 /// <param name="message">消息内容</param> 205 /// <param name="toURL">连接地址</param> 206 /// <param name="page">Page类的实例</param> 207 public static void AlertAndRedirect(string message, string toURL, Page page) 208 { 209 #region 210 string js = "<script language=javascript>alert('{0}');window.location.replace('{1}')</script>"; 211 if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "AlertAndRedirect")) 212 { 213 page.ClientScript.RegisterStartupScript(page.GetType(), "AlertAndRedirect", string.Format(js, message, toURL)); 214 } 215 #endregion 216 } 217 218 /// <summary> 219 /// 回到历史页面 220 /// </summary> 221 /// <param name="value">-1/1</param> 222 /// <param name="page">Page类的实例</param> 223 public static void GoHistory(int value, Page page) 224 { 225 #region 226 string js = @"<Script language='JavaScript'> 227 history.go({0}); 228 </Script>"; 229 if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "GoHistory")) 230 { 231 page.ClientScript.RegisterStartupScript(page.GetType(), "GoHistory", string.Format(js, value)); 232 } 233 #endregion 234 } 235 236 /// <summary> 237 /// 刷新父窗口 238 /// </summary> 239 /// <param name="url">要刷新的url</param> 240 /// <param name="page">Page类的实例</param> 241 public static void RefreshParent(string url, Page page) 242 { 243 #region 244 string js = @"<Script language='JavaScript'> 245 window.opener.location.href='" + url + "';window.close();</Script>"; 246 //HttpContext.Current.Response.Write(js); 247 if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "RefreshParent")) 248 { 249 page.ClientScript.RegisterStartupScript(page.GetType(), "RefreshParent", js); 250 } 251 #endregion 252 } 253 254 255 /// <summary> 256 /// 刷新打开窗口 257 /// </summary> 258 /// <param name="page">Page类的实例</param> 259 public static void RefreshOpener(Page page) 260 { 261 #region 262 string js = @"<Script language='JavaScript'> 263 opener.location.reload(); 264 </Script>"; 265 //HttpContext.Current.Response.Write(js); 266 if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "RefreshOpener")) 267 { 268 page.ClientScript.RegisterStartupScript(page.GetType(), "RefreshOpener", js); 269 } 270 #endregion 271 } 272 273 274 /// <summary> 275 /// 打开指定大小的新窗体 276 /// </summary> 277 /// <param name="url">地址</param> 278 /// <param name="width">宽</param> 279 /// <param name="heigth">高</param> 280 /// <param name="top">头位置</param> 281 /// <param name="left">左位置</param> 282 /// <param name="page">Page类的实例</param> 283 public static void OpenWebFormSize(string url, int width, int heigth, int top, int left, Page page) 284 { 285 #region 286 string js = @"<Script language='JavaScript'>window.open('" + url + @"','','height=" + heigth + ",width=" + width + ",top=" + top + ",left=" + left + ",location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,titlebar=no,toolbar=no,directories=no');</Script>"; 287 //HttpContext.Current.Response.Write(js); 288 if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "OpenWebFormSize")) 289 { 290 page.ClientScript.RegisterStartupScript(page.GetType(), "OpenWebFormSize", js); 291 } 292 #endregion 293 } 294 295 296 /// <summary> 297 /// 转向Url制定的页面 298 /// </summary> 299 /// <param name="url">连接地址</param> 300 /// <param name="page">Page类的实例</param> 301 public static void JavaScriptLocationHref(string url, Page page) 302 { 303 #region 304 string js = @"<Script language='JavaScript'> 305 window.location.replace('{0}'); 306 </Script>"; 307 js = string.Format(js, url); 308 if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "JavaScriptLocationHref")) 309 { 310 page.ClientScript.RegisterStartupScript(page.GetType(), "JavaScriptLocationHref", js); 311 } 312 #endregion 313 } 314 315 /// <summary> 316 /// 打开指定大小位置的模式对话框 317 /// </summary> 318 /// <param name="webFormUrl">连接地址</param> 319 /// <param name="width">宽</param> 320 /// <param name="height">高</param> 321 /// <param name="top">距离上位置</param> 322 /// <param name="left">距离左位置</param> 323 /// <param name="page">Page类的实例</param> 324 public static void ShowModalDialogWindow(string webFormUrl, int width, int height, int top, int left, Page page) 325 { 326 #region 327 string features = "dialogWidth:" + width.ToString() + "px" 328 + ";dialogHeight:" + height.ToString() + "px" 329 + ";dialogLeft:" + left.ToString() + "px" 330 + ";dialogTop:" + top.ToString() + "px" 331 + ";center:yes;help=no;resizable:no;status:no;scroll=yes"; 332 ShowModalDialogWindow(webFormUrl, features, page); 333 #endregion 334 } 335 /// <summary> 336 /// 弹出模态窗口 337 /// </summary> 338 /// <param name="webFormUrl"></param> 339 /// <param name="features"></param> 340 /// <param name="page">Page类的实例</param> 341 public static void ShowModalDialogWindow(string webFormUrl, string features, Page page) 342 { 343 string js = ShowModalDialogJavascript(webFormUrl, features); 344 if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "ShowModalDialogWindow")) 345 { 346 page.ClientScript.RegisterStartupScript(page.GetType(), "ShowModalDialogWindow", js); 347 } 348 } 349 /// <summary> 350 /// 向当前页面动态输出客户端脚本代码 351 /// </summary> 352 /// <param name="javascript">javascript脚本段</param> 353 /// <param name="page">Page类的实例</param> 354 /// <param name="afterForm">是否紧跟在<form>标记之后输出javascript脚本，如果不是则在</form>标记之前输出脚本代码</param> 355 public static void AppendScript(string javascript, Page page, bool afterForm) 356 { 357 if (afterForm) 358 { 359 page.ClientScript.RegisterClientScriptBlock(page.GetType(), page.ToString(), javascript); 360 } 361 else 362 { 363 page.ClientScript.RegisterStartupScript(page.GetType(), page.ToString(),javascript); 364 } 365 } 366 #endregion 367 } 368 }
QueryString.cs
1 using System.Web; 2 using System.Text.RegularExpressions; 3 4 namespace Common 5 { 6 /// <summary> 7 /// QueryString 地址栏参数 8 /// </summary> 9 public class QueryString 10 { 11 #region 等于Request.QueryString;如果为null 返回 空“” ，否则返回Request.QueryString[name] 12 /// <summary> 13 /// 等于Request.QueryString;如果为null 返回 空“” ，否则返回Request.QueryString[name] 14 /// </summary> 15 /// <param name="name"></param> 16 /// <returns></returns> 17 public static string Q(string name) 18 { 19 return Request.QueryString[name] == null ? "" : Request.QueryString[name]; 20 } 21 #endregion 22 23 /// <summary> 24 /// 等于 Request.Form 如果为null 返回 空“” ，否则返回 Request.Form[name] 25 /// </summary> 26 /// <param name="name"></param> 27 /// <returns></returns> 28 public static string FormRequest(string name) 29 { 30 return Request.Form[name] == null ? "" : Request.Form[name].ToString(); 31 } 32 #region 获取url中的id 33 /// <summary> 34 /// 获取url中的id 35 /// </summary> 36 /// <param name="name"></param> 37 /// <returns></returns> 38 public static int QId(string name) 39 { 40 return StrToId(Q(name)); 41 } 42 #endregion 43 44 #region 获取正确的Id，如果不是正整数，返回0 45 /// <summary> 46 /// 获取正确的Id，如果不是正整数，返回0 47 /// </summary> 48 /// <param name="_value"></param> 49 /// <returns>返回正确的整数ID，失败返回0</returns> 50 public static int StrToId(string _value) 51 { 52 if (IsNumberId(_value)) 53 return int.Parse(_value); 54 else 55 return 0; 56 } 57 #endregion 58 59 #region 检查一个字符串是否是纯数字构成的，一般用于查询字符串参数的有效性验证。 60 /// <summary> 61 /// 检查一个字符串是否是纯数字构成的，一般用于查询字符串参数的有效性验证。 62 /// </summary> 63 /// <param name="_value">需验证的字符串。。</param> 64 /// <returns>是否合法的bool值。</returns> 65 public static bool IsNumberId(string _value) 66 { 67 return QuickValidate("^[1-9]*[0-9]*$", _value); 68 } 69 #endregion 70 71 #region 快速验证一个字符串是否符合指定的正则表达式。 72 /// <summary> 73 /// 快速验证一个字符串是否符合指定的正则表达式。 74 /// </summary> 75 /// <param name="_express">正则表达式的内容。</param> 76 /// <param name="_value">需验证的字符串。</param> 77 /// <returns>是否合法的bool值。</returns> 78 public static bool QuickValidate(string _express, string _value) 79 { 80 if (_value == null) return false; 81 Regex myRegex = new Regex(_express); 82 if (_value.Length == 0) 83 { 84 return false; 85 } 86 return myRegex.IsMatch(_value); 87 } 88 #endregion 89 90 #region 类内部调用 91 /// <summary> 92 /// HttpContext Current 93 /// </summary> 94 public static HttpContext Current 95 { 96 get { return HttpContext.Current; } 97 } 98 /// <summary> 99 /// HttpContext Current HttpRequest Request get { return Current.Request; 100 /// </summary> 101 public static HttpRequest Request 102 { 103 get { return Current.Request; } 104 } 105 /// <summary> 106 /// HttpContext Current HttpRequest Request get { return Current.Request; HttpResponse Response return Current.Response; 107 /// </summary> 108 public static HttpResponse Response 109 { 110 get { return Current.Response; } 111 } 112 #endregion 113 } 114 }
RupengPager.cs
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Web; 5 using System.Text; 6 using System.Diagnostics; 7 8 namespace Common 9 { 10 /// <summary> 11 /// 分页组件调用实例 12 /// var pager = new Common.RupengPager(); 13 /// pager.UrlFormat = "测试分页.aspx?pagenum={n}";//设置分页URL 14 /// pager.PageSize = 10; //设置每页显示个数 15 /// pager.TryParseCurrentPageIndex(Request["pagenum"]);//获取当前页数 16 /// int startRowIndex = (pager.CurrentPageIndex - 1) * pager.PageSize;//开始行号计算 17 /// So_KeywordLogBLL bll = new So_KeywordLogBLL();//获取分页数据 18 /// pager.TotalCount = bll.GetTotalCount();//计算总个数 19 /// Repeater1.DataSource = bll.GetPagedData(startRowIndex, startRowIndex + pager.PageSize - 1); //设置数据绑定 20 /// Repeater1.DataBind(); 21 /// PagerHTML = pager.Render();//渲染页码条HTML 22 /// </summary> 23 public class RupengPager 24 { 25 /// <summary> 26 /// 总数据条数 27 /// </summary> 28 public int TotalCount { get; set; } 29 30 /// <summary> 31 /// 每页数据条数 32 /// </summary> 33 public int PageSize { get; set; } 34 35 /// <summary> 36 /// 当前页码（从1开始） 37 /// </summary> 38 public int CurrentPageIndex { get; set; } 39 40 /// <summary> 41 /// 显示出来最多的页码数量，因为假设有100页，不可能把100页都显示到界面上 42 /// </summary> 43 public int MaxPagerCount { get; set; } 44 45 /// <summary> 46 /// 页码链接的地址格式，页码用{n}占位。 47 /// </summary> 48 public string UrlFormat { get; set; } 49 /// <summary> 50 /// 默认初始化 51 /// </summary> 52 public RupengPager() 53 { 54 PageSize = 10; 55 MaxPagerCount = 10; 56 } 57 58 /// <summary> 59 /// 尝试从字符串pn中解析当前页面赋值给CurrentPageIndex 60 /// </summary> 61 /// <param name="pn"></param> 62 public void TryParseCurrentPageIndex(string pn) 63 { 64 int temp; 65 if (int.TryParse(pn, out temp)) 66 { 67 CurrentPageIndex = temp; 68 } 69 else 70 { 71 CurrentPageIndex = 1; 72 } 73 } 74 75 /// <summary> 76 /// 创建页码链接 77 /// </summary> 78 /// <param name="i">页码</param> 79 /// <param name="text">链接文本</param> 80 /// <returns></returns> 81 private string GetPageLink(int i,string text) 82 { 83 StringBuilder sb = new StringBuilder(); 84 string url = UrlFormat.Replace("{n}", i.ToString()); 85 sb.Append("<a href='").Append(url).Append("'>").Append(text).Append("</a>"); 86 return sb.ToString(); 87 } 88 public string Render() 89 { 90 91 92 StringBuilder sb = new StringBuilder(); 93 //TotalCount=35,PageSize=10,pageCount=4 94 95 //计算总页数，如果是30条，则是3页，31条也是3页，29条也是3页，因此是 96 //天花板运算Ceiling 97 double tempCount = TotalCount / PageSize; 98 int pageCount = (int)Math.Ceiling(tempCount); 99 100 //计算显示的页码数（当总页码大于MaxPagerCount）的起始页码 101 int visibleStart = CurrentPageIndex-MaxPagerCount/2; 102 if (visibleStart <1) 103 { 104 visibleStart = 1; 105 } 106 107 //计算显示的页码数（当总页码大于MaxPagerCount）的起始页码 108 int visibleEnd = visibleStart + MaxPagerCount; 109 //显示最多MaxPagerCount条 110 //如果算出来的结束页码大于总页码的话则调整为最大页码 111 if (visibleEnd >pageCount) 112 { 113 visibleEnd = pageCount; 114 } 115 116 if (CurrentPageIndex > 1) 117 { 118 sb.Append(GetPageLink(1, "首页")); 119 sb.Append(GetPageLink(CurrentPageIndex - 1, "上一页")); 120 } 121 else 122 { 123 sb.Append("<span>首页</span>"); 124 //如果没有上一页了，则只显示一个上一页的文字，没有超链接 125 sb.Append("<span>上一页</span>"); 126 } 127 128 //绘制可视的页码链接 129 for (int i = visibleStart; i <= visibleEnd; i++) 130 { 131 //当前页不是超链接 132 if (i == CurrentPageIndex) 133 { 134 sb.Append("<span>").Append(i).Append("</span>"); 135 } 136 else 137 { 138 sb.Append(GetPageLink(i,i.ToString())); 139 } 140 } 141 if (CurrentPageIndex < pageCount) 142 { 143 sb.Append(GetPageLink(CurrentPageIndex + 1, "下一页")); 144 sb.Append(GetPageLink(pageCount + 1, "末页")); 145 } 146 else 147 { 148 sb.Append("<span>下一页</span>"); 149 sb.Append("<span>末页</span>"); 150 } 151 return sb.ToString(); 152 } 153 } 154 }
SessionHelper.cs
1 using System.Web; 2 3 namespace Common 4 { 5 /// <summary> 6 /// Session 操作类 7 /// 1、GetSession(string name)根据session名获取session对象 8 /// 2、SetSession(string name, object val)设置session 9 /// </summary> 10 public class SessionHelper 11 { 12 /// <summary> 13 /// 根据session名获取session对象 14 /// </summary> 15 /// <param name="name"></param> 16 /// <returns></returns> 17 public static object GetSession(string name) 18 { 19 return HttpContext.Current.Session[name]; 20 } 21 /// <summary> 22 /// 设置session 23 /// </summary> 24 /// <param name="name">session 名</param> 25 /// <param name="val">session 值</param> 26 public static void SetSession(string name, object val) 27 { 28 HttpContext.Current.Session.Remove(name); 29 HttpContext.Current.Session.Add(name, val); 30 } 31 /// <summary> 32 /// 添加Session，调动有效期为20分钟 33 /// </summary> 34 /// <param name="strSessionName">Session对象名称</param> 35 /// <param name="strValue">Session值</param> 36 public static void Add(string strSessionName, string strValue) 37 { 38 HttpContext.Current.Session[strSessionName] = strValue; 39 HttpContext.Current.Session.Timeout = 20; 40 } 41 42 /// <summary> 43 /// 添加Session，调动有效期为20分钟 44 /// </summary> 45 /// <param name="strSessionName">Session对象名称</param> 46 /// <param name="strValues">Session值数组</param> 47 public static void Adds(string strSessionName, string[] strValues) 48 { 49 HttpContext.Current.Session[strSessionName] = strValues; 50 HttpContext.Current.Session.Timeout = 20; 51 } 52 53 /// <summary> 54 /// 添加Session 55 /// </summary> 56 /// <param name="strSessionName">Session对象名称</param> 57 /// <param name="strValue">Session值</param> 58 /// <param name="iExpires">调动有效期（分钟）</param> 59 public static void Add(string strSessionName, string strValue, int iExpires) 60 { 61 HttpContext.Current.Session[strSessionName] = strValue; 62 HttpContext.Current.Session.Timeout = iExpires; 63 } 64 65 /// <summary> 66 /// 添加Session 67 /// </summary> 68 /// <param name="strSessionName">Session对象名称</param> 69 /// <param name="strValues">Session值数组</param> 70 /// <param name="iExpires">调动有效期（分钟）</param> 71 public static void Adds(string strSessionName, string[] strValues, int iExpires) 72 { 73 HttpContext.Current.Session[strSessionName] = strValues; 74 HttpContext.Current.Session.Timeout = iExpires; 75 } 76 77 /// <summary> 78 /// 读取某个Session对象值 79 /// </summary> 80 /// <param name="strSessionName">Session对象名称</param> 81 /// <returns>Session对象值</returns> 82 public static string Get(string strSessionName) 83 { 84 if (HttpContext.Current.Session[strSessionName] == null) 85 { 86 return null; 87 } 88 else 89 { 90 return HttpContext.Current.Session[strSessionName].ToString(); 91 } 92 } 93 94 /// <summary> 95 /// 读取某个Session对象值数组 96 /// </summary> 97 /// <param name="strSessionName">Session对象名称</param> 98 /// <returns>Session对象值数组</returns> 99 public static string[] Gets(string strSessionName) 100 { 101 if (HttpContext.Current.Session[strSessionName] == null) 102 { 103 return null; 104 } 105 else 106 { 107 return (string[])HttpContext.Current.Session[strSessionName]; 108 } 109 } 110 111 /// <summary> 112 /// 删除某个Session对象 113 /// </summary> 114 /// <param name="strSessionName">Session对象名称</param> 115 public static void Del(string strSessionName) 116 { 117 HttpContext.Current.Session[strSessionName] = null; 118 } 119 /// <summary> 120 /// 移除Session 121 /// </summary> 122 public static void Remove(string sessionname) 123 { 124 if (HttpContext.Current.Session[sessionname] != null) 125 { 126 HttpContext.Current.Session.Remove(sessionname); 127 HttpContext.Current.Session[sessionname] = null; 128 } 129 } 130 } 131 }
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