• 收集的一些综合功能函数


    出现提示框

    string strFile="F:\\a.doc";//路径根据实际情况而定
    if(!System.IO.File.Exists(strFile))
       {
        Response.Write("<script language='javascript'>alert('对不起,文件不存在!');</script>");
        return;
       }
       Response.Clear();
       Response.ClearHeaders();
       Response.Charset = "GB2312";
       Response.ContentEncoding =System.Text.Encoding.UTF8;
       Response.ContentType = "application/octet-stream";
       FileInfo fi=new FileInfo(strFile);
       Response.AddHeader("Content-Disposition","attachment;  filename="  +  HttpUtility.UrlEncode(fi.Name)) ;
       Response.AddHeader("Content-Length",fi.Length.ToString());
       byte[] tmpbyte=new byte[1024*8];
       FileStream fs=fi.OpenRead();
       int count;
       while((count=fs.Read(tmpbyte,0,tmpbyte.Length))>0)
       {
        Response.BinaryWrite(tmpbyte);
        Response.Flush();
       }
       fs.Close();  
       Response.End();

    直接在浏览器中打开
       string strFile="F:\\a.doc";//路径根据实际情况而定
       Response.Clear();
       Response.ClearHeaders();
       Response.Charset = "GB2312";
       Response.ContentEncoding =System.Text.Encoding.UTF8;
       Response.ContentType = "application/msword";
       Response.WriteFile(strFile);



    Window.open()打开一个窗体不被拦截

    在DataGrid中建一个模板列,在模板列中放一个客户端的Button,或者直接写你要的字句,然后用<a href>连接
    例:
    <TABLE id="Table1" cellSpacing="0" cellPadding="0" width="100%" align="center" border="0">
        <TR>
         <TD width="100%">
          <asp:datagrid id="dgFreightInfo" runat="server" Width="96%" GridLines="Horizontal" AllowCustomPaging="True"
           AllowPaging="True" AutoGenerateColumns="False" DataKeyField="id" BorderColor="White" BorderWidth="1px"
           PageSize="20">
           <ItemStyle Height="25px" BackColor="#F7F7F7"></ItemStyle>
           <HeaderStyle Font-Bold="True" HorizontalAlign="Center" Height="25px" BackColor="#E8E8E8"></HeaderStyle>
           <Columns>
            <asp:TemplateColumn>
             <ItemTemplate>
              <A href='javascript:onclick=LoadFreight(<%# DataBinder.Eval(Container,"DataItem.id")%>)'>
               详细信息</A>
             </ItemTemplate>
            </asp:TemplateColumn>
           </Columns>
          </asp:datagrid>
         </TD>
        </TR>
    然后写一个JavaScript方法
    <script language="javascript">
    function LoadFreight(id)//id为传进的参数
    {
     var url='url.aspx?tid='+id+'';
     window.open(url,'','scrollbars=yes,top=0,left=0,resizable=no,status=no,toolbar=no,menubar=no,location=no,width=430,height=600');
    }
    </script>



    1. 打开新的窗口并传送参数:
    传送参数:
    response.write("<script>window.open('*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"')</script>")

    接收参数:
    string a  = Request.QueryString("id");
    string b  = Request.QueryString("id1");


    2.为按钮添加对话框

    Button1.Attributes.Add("onclick","return confirm('确认?')");

    button.attributes.add("onclick","if(confirm('are you sure...?')){return true;}else{return false;}")


    3.删除表格选定记录

    int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex];
    string deleteCmd = "DELETE from Employee where emp_id = " + intEmpID.ToString()

    4.删除表格记录警告
    private void DataGrid_ItemCreated(Object sender,DataGridItemEventArgs e)
    {
    switch(e.Item.ItemType)
    {
     case ListItemType.Item :
     case ListItemType.AlternatingItem :
     case ListItemType.EditItem:
       TableCell myTableCell;
       myTableCell = e.Item.Cells[14];
       LinkButton myDeleteButton ;
       myDeleteButton = (LinkButton)myTableCell.Controls[0];
       myDeleteButton.Attributes.Add("onclick","return confirm('您是否确定要删除这条信息');");
       break;
     default:
      break;
    }

    }


    5.点击表格行链接另一页

    private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
    {
    //点击表格打开
    if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
    e.Item.Attributes.Add("onclick","window.open('Default.aspx?id=" + e.Item.Cells[0].Text + "');");
    }


    双击表格连接到另一页
    在itemDataBind事件中
    if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
      {
    string OrderItemID =e.item.cells[1].Text;
    ...
    e.item.Attributes.Add("ondblclick", "location.href='../ShippedGrid.aspx?id=" + OrderItemID + "'");
    }
    双击表格打开新一页
    if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
      {
    string OrderItemID =e.item.cells[1].Text;
    ...
    e.item.Attributes.Add("ondblclick", "open('../ShippedGrid.aspx?id=" + OrderItemID + "')");
    }
    ★特别注意:【?id=】 处不能为 【?id =】

    6.表格超连接列传递参数
    <asp:HyperLinkColumn Target="_blank"  headertext="ID号" DataTextField="id" NavigateUrl="aaa.aspx?id='<%# DataBinder.Eval(Container.DataItem, "数据字段1")%>'  & name='<%# DataBinder.Eval(Container.DataItem, "数据字段2")%>' />


    7.表格点击改变颜色
    if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
    {
     e.Item.Attributes.Add("onclick","this.style.backgroundColor='#99cc00';this.style.color='buttontext';this.style.cursor='default';");
    }


    写在DataGrid的_ItemDataBound里
    if (e.Item.ItemType == ListItemType.Item ||e.Item.ItemType == ListItemType.AlternatingItem)
    {
     e.Item.Attributes.Add("onmouseover","this.style.backgroundColor='#99cc00';this.style.color='buttontext';this.style.cursor='default';");
    e.Item.Attributes.Add("onmouseout","this.style.backgroundColor='';this.style.color='';");
    }

    8.关于日期格式

    日期格式设定
    DataformatString="{0:yyyy-MM-dd}"

    我觉得应该在itembound事件中
    e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd"))

    9.获取错误信息并到指定页面
    不要使用Response.Redirect,而应该使用Server.Transfer
    e.g
    // in global.asax
    protected void Application_Error(Object sender, EventArgs e) {
     if (Server.GetLastError() is HttpUnhandledException)
         Server.Transfer("MyErrorPage.aspx");

    //其余的非HttpUnhandledException异常交给ASP.NET自己处理就okay了 Smile
    }

    Redirect会导致post-back的产生从而丢失了错误信息,所以页面导向应该直接在服务器端执行,这样就可以在错误处理页面得到出错信息并进行相应的处理


    10.清空Cookie
    Cookie.Expires=[DateTime];
    Response.Cookies("UserName").Expires = 0


    11.自定义异常处理

    //自定义异常处理类
    using System;
    using System.Diagnostics;

    namespace MyAppException
    {
    /// <summary>
    /// 从系统异常类ApplicationException继承的应用程序异常处理类。
    /// 自动将异常内容记录到Windows NT/2000的应用程序日志
    /// </summary>
    public class AppException:System.ApplicationException
    {
     public AppException()
     {
      if (ApplicationConfiguration.EventLogEnabled)
       LogEvent("出现一个未知错误。");
     }

     public AppException(string message)
     {
      LogEvent(message);
     }

     public AppException(string message,Exception innerException)
     {
      LogEvent(message);
      if (innerException != null)
      {
       LogEvent(innerException.Message);
      }
     }

    //日志记录类
    using System;
    using System.Configuration;
    using System.Diagnostics;
    using System.IO;
    using System.Text;
    using System.Threading;

    namespace MyEventLog
    {
    /// <summary>
    ///     事件日志记录类,提供事件日志记录支持
    ///     <remarks>
    ///         定义了4个日志记录方法 (error, warning, info, trace)
    ///     </remarks>
    /// </summary>
    public class ApplicationLog
    {
        /// <summary>
     ///     将错误信息记录到Win2000/NT事件日志中
     ///     <param name="message">需要记录的文本信息</param>
     /// </summary>
     public static void WriteError(String message)
     {

      WriteLog(TraceLevel.Error, message);
     }
           
     /// <summary>
     ///     将警告信息记录到Win2000/NT事件日志中
     ///     <param name="message">需要记录的文本信息</param>
     /// </summary>
     public static void WriteWarning(String message)
     {

      WriteLog(TraceLevel.Warning, message);
     }
           
     /// <summary>
     ///     将提示信息记录到Win2000/NT事件日志中
     ///     <param name="message">需要记录的文本信息</param>
     /// </summary>
     public static void WriteInfo(String message)
     {
      WriteLog(TraceLevel.Info, message);
     }
     /// <summary>
     ///     将跟踪信息记录到Win2000/NT事件日志中
     ///     <param name="message">需要记录的文本信息</param>
     /// </summary>
     public static void WriteTrace(String message)
     {
     
      WriteLog(TraceLevel.Verbose, message);
     }
           
     /// <summary>
     ///    格式化记录到事件日志的文本信息格式
     ///     <param name="ex">需要格式化的异常对象</param>
     ///     <param name="catchInfo">异常信息标题字符串.</param>
     ///     <retvalue>
     ///         <para>格式后的异常信息字符串,包括异常内容和跟踪堆栈.</para>
     ///     </retvalue>
     /// </summary>
     public static String formatException(Exception ex, String catchInfo)
     {
      StringBuilder strBuilder = new StringBuilder();
      if (catchInfo != String.Empty)
      {
       strBuilder.Append(catchInfo).Append("\r\n");
      }
      strBuilder.Append(ex.Message).Append("\r\n").Append(ex.StackTrace);
      return strBuilder.ToString();
     }

     /// <summary>
     ///     实际事件日志写入方法
     ///     <param name="level">要记录信息的级别(error,warning,info,trace).</param>
     ///     <param name="messageText">要记录的文本.</param>
     /// </summary>
     private static void WriteLog(TraceLevel level, String messageText)
     {
     
      try
      {  
       EventLogEntryType LogEntryType;
       switch (level)
       {
        case TraceLevel.Error:
         LogEntryType = EventLogEntryType.Error;
         break;
        case TraceLevel.Warning:
         LogEntryType = EventLogEntryType.Warning;
         break;
        case TraceLevel.Info:
         LogEntryType = EventLogEntryType.Information;
         break;
        case TraceLevel.Verbose:
         LogEntryType = EventLogEntryType.SuccessAudit;
         break;
        default:
         LogEntryType = EventLogEntryType.SuccessAudit;
         break;
       }
       
       EventLog eventLog = new EventLog("Application", ApplicationConfiguration.EventLogMachineName,         ApplicationConfiguration.EventLogSourceName );
       //写入事件日志
       eventLog.WriteEntry(messageText, LogEntryType);
     
      }
      catch {} //忽略任何异常
     }    
    } //class ApplicationLog
    }


    12.Panel 横向滚动,纵向自动扩展
    <asp:panel  style="overflow-x:scroll;overflow-y:auto;"></asp:panel>


    13.回车转换成Tab
    <script language="javascript" for="document" event="onkeydown">
    if(event.keyCode==13 && event.srcElement.type!='button' && event.srcElement.type!='submit' && event.srcElement.type!='reset' && event.srcElement.type!=''&& event.srcElement.type!='textarea');
    event.keyCode=9;
    </script>

    onkeydown="if(event.keyCode==13) event.keyCode=9"

    http://dotnet.aspx.cc/exam/enter2tab.aspx


    14.DataGrid超级连接列
    DataNavigateUrlField="字段名" DataNavigateUrlformatString="http://xx/inc/delete.aspx?ID={0}"


    15.DataGrid行随鼠标变色
    private void DGzf_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
     {
      if (e.Item.ItemType!=ListItemType.Header)
      {
       e.Item.Attributes.Add( "onmouseout","this.style.backgroundColor=\""+e.Item.style["BACKGROUND-COLOR"]+"\"");
       e.Item.Attributes.Add( "onmouseover","this.style.backgroundColor=\""+ "#EFF3F7"+"\"");
      }
     
     }


    16.模板列
    <ASP:TEMPLATECOLUMN visible="False" sortexpression="demo" headertext="ID">
    <ITEMTEMPLATE>
     <ASP:LABEL text='<%# DataBinder.Eval(Container.DataItem, "ArticleID")%>' runat="server" width="80%" id="lblColumn" />
    </ITEMTEMPLATE>
    </ASP:TEMPLATECOLUMN>


    <ASP:TEMPLATECOLUMN headertext="选中">
    <HEADERstyle wrap="False" horizontalalign="Center"></HEADERstyle>
    <ITEMTEMPLATE>
     <ASP:CHECKBOX id="chkExport" runat="server" />
    </ITEMTEMPLATE>
    <EDITITEMTEMPLATE>
    <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" />
    </EDITITEMTEMPLATE>
    </ASP:TEMPLATECOLUMN>

    后台代码

    protected void CheckAll_CheckedChanged(object sender, System.EventArgs e)
     {
      //改变列的选定,实现全选或全不选。
      CheckBox chkExport ;
      if( CheckAll.Checked)
      {
       foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
       {
        chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
        chkExport.Checked = true;
       }
      }
      else
      {
       foreach(DataGridItem oDataGridItem in MyDataGrid.Items)
       {
        chkExport = (CheckBox)oDataGridItem.FindControl("chkExport");
        chkExport.Checked = false;
       }
      }
     }

    17.数字格式化
    【<%#Container.DataItem("price")%>的结果是500.0000,怎样格式化为500.00?】

    <%#Container.DataItem("price","{0:¥#,##0.00}")%>

    int i=123456;
    string s=i.ToString("###,###.00");

    18.日期格式化

    【aspx页面内:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>
    显示为: 2004-8-11 19:44:28
    我只想要:2004-8-11 】

    <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>

    应该如何改?


    【格式化日期】
    取出来,一般是object
    ((DateTime)objectFromDB).ToString("yyyy-MM-dd");


    【日期的验证表达式】
    A.以下正确的输入格式: [2004-2-29], [2004-02-29 10:29:39 pm], [2004/12/31]  

    ^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[1-9])|(1[0-2]))\:([0-5][0-9])((\s)|(\:([0-5][0-9])\s))([AM|PM|am|pm]{2,2})))?$

    B.以下正确的输入格式:[0001-12-31], [9999 09 30], [2002/03/03]  

    ^\d{4}[\-\/\s]?((((0[13578])|(1[02]))[\-\/\s]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\-\/\s]?(([0-2][0-9])|(30)))|(02[\-\/\s]?[0-2][0-9]))$


    【大小写转换】

    HttpUtility.HtmlEncode(string);
    HttpUtility.HtmlDecode(string)

    19.如何设定全局变量
    Global.asax中

    Application_Start()事件中

    添加Application[属性名] = xxx;

    就是你的全局变量

    20.怎样作到HyperLinkColumn生成的连接后,点击连接,打开新窗口?

    HyperLinkColumn有个属性Target,将器值设置成"_blank"即可.(Target="_blank")

    【ASPNETMENU】点击菜单项弹出新窗口
    在你的menuData.xml文件的菜单项中加入URLTarget="_blank"
    如:
    <?xml version="1.0" encoding="GB2312"?>
    <MenuData ImagesBaseURL="images/">
     <MenuGroup>
       <MenuItem Label="内参信息" URL="Infomation.aspx" >
         <MenuGroup ID="BBC">
           <MenuItem Label="公告信息"   URL="Infomation.aspx" URLTarget="_blank"  LeftIcon="file.gif"/>
           <MenuItem Label="编制信息简报" URL="NewInfo.aspx" LeftIcon="file.gif" />
    ......
    最好将你的aspnetmenu升级到1.2版

    21.委托讨论
    http://community.csdn.net/Expert/topic/2651/2651579.xml?temp=.7183191
    http://dev.csdn.net/develop/article/22/22951.shtm

    22.读取DataGrid控件TextBox值

    foreach(DataGrid dgi in yourDataGrid.Items)
    {
       TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
       tb.Text....
    }

    23.在DataGrid中有3个模板列包含Textbox分别为 DG_ShuLiang (数量) DG_DanJian(单价) DG_JinE(金额)分别在5.6.7列,要求在录入数量及单价的时候自动算出金额即:数量*单价=金额还要求录入时限制为 数值型.我如何用客户端脚本实现这个功能?

    〖思归〗
      <asp:TemplateColumn HeaderText="数量">
     <ItemTemplate>
      <asp:TextBox id="ShuLiang" runat='server' Text='<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>'  
       onkeyup="javascript:DoCal()"
      />

      <asp:RegularExpressionValidator id="revS" runat="server" ControlToValidate="ShuLiang" ErrorMessage="must be integer" ValidationExpression="^\d+$" />
     </ItemTemplate>
         </asp:TemplateColumn>

         <asp:TemplateColumn HeaderText="单价">
     <ItemTemplate>
      <asp:TextBox id="DanJian" runat='server' Text='<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>'
       onkeyup="javascript:DoCal()"
      />

     <asp:RegularExpressionValidator id="revS2" runat="server" ControlToValidate="DanJian" ErrorMessage="must be numeric" ValidationExpression="^\d+(\.\d*)?$" />

     </ItemTemplate>
         </asp:TemplateColumn>

        <asp:TemplateColumn HeaderText="金额">
     <ItemTemplate>
      <asp:TextBox id="JinE" runat='server' Text='<%# DataBinder.Eval(Container.DataItem,"DG_JinE")%>' />
     </ItemTemplate>
         </asp:TemplateColumn>


    <script language="javascript">
    function DoCal()
    {
     var e = event.srcElement;
     var row = e.parentNode.parentNode;
     var txts = row.all.tags("INPUT");
     if (!txts.length || txts.length < 3)
    return;

     var q = txts[txts.length-3].value;
     var p = txts[txts.length-2].value;

     if (isNaN(q) || isNaN(p))
    return;

     q = parseInt(q);
     p = parseFloat(p);

     txts[txts.length-1].value = (q * p).toFixed(2);
    }
    </script>


    24.datagrid选定比较底下的行时,为什么总是刷新一下,然后就滚动到了最上面,刚才选定的行因屏幕的关系就看不到了
    page_load
    page.smartNavigation=true

    25.在Datagrid中修改数据,当点击编辑键时,数据出现在文本框中,怎么控制文本框的大小 ?

    private void DataGrid1_ItemDataBound(obj sender,DataGridItemEventArgs e)
    {
          for(int i=0;i<e.Item.Cells.Count-1;i++)
             if(e.Item.ItemType==ListItemType.EditType)
              {
                     e.Item.Cells[i].Attributes.Add("Width", "80px")

               }  
    }


    26.对话框
    private static string ScriptBegin = "<script language=\"javascript\">";
    private static string ScriptEnd = "</script>";

    public static void ConfirmMessageBox(string PageTarget,string Content)
     {

      string ConfirmContent="var retvalue=window.confirm('"+Content+"');"+"if(retvalue){window.location='"+PageTarget+"';}";
     
      ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
     
      Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
      ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
      //Response.Write(strScript);
     
     }

    一. 显示消息对话框类

        做项目时总免不了要弹出对话框,或提示用户,或做用户确认。像WinForm下的MessageBox一样很方便,但web下是不是也可以实现呢,答案是肯定的,我简单总结了一下并封装到类,在项目里像WinFormMessageBox那样直接调用就可以,也可以把它编译成dll作为组件直接调用,并且它也没有弹出对话框时的大白屏现象:)。

         /// <summary>

         /// 显示消息提示对话框。

         /// 李天平

         /// 2005.10.1

         /// </summary>

         public class MessageBox

         {       

             private  MessageBox()

             {            

             }

             /// <summary>

             /// 显示消息提示对话框

             /// </summary>

             /// <param name="page">当前页面指针,一般为this</param>

             /// <param name="msg">提示信息</param>

             public static void  Show(System.Web.UI.Page page,string msg)

             {

                  page.RegisterStartupScript("message","<script language='javascript' defer>alert('"+msg.ToString()+"');</script>");

             }

             /// <summary>

             /// 控件点击消息确认提示框

             /// </summary>

             /// <param name="page">当前页面指针,一般为this</param>

             /// <param name="msg">提示信息</param>

             public static void  ShowConfirm(System.Web.UI.WebControls.WebControl Control,string msg)

             {

                  //Control.Attributes.Add("onClick","if (!window.confirm('"+msg+"')){return false;}");

                  Control.Attributes.Add("onclick", "return confirm('" + msg + "');") ;

             }

             /// <summary>

             /// 显示消息提示对话框,并进行页面跳转

             /// </summary>

             /// <param name="page">当前页面指针,一般为this</param>

             /// <param name="msg">提示信息</param>

             /// <param name="url">跳转的目标URL</param>

             public static void ShowAndRedirect(System.Web.UI.Page page,string msg,string url)

             {

                  StringBuilder Builder=new StringBuilder();

                  Builder.Append("<script language='javascript' defer>");

                  Builder.AppendFormat("alert('{0}');",msg);

                  Builder.AppendFormat("top.location.href='{0}'",url);

                  Builder.Append("</script>");

                  page.RegisterStartupScript("message",Builder.ToString());

             }

             /// <summary>

             /// 输出自定义脚本信息

             /// </summary>

             /// <param name="page">当前页面指针,一般为this</param>

             /// <param name="script">输出脚本</param>

             public static void ResponseScript(System.Web.UI.Page page,string script)

             {

                  page.RegisterStartupScript("message","<script language='javascript' defer>"+script+"</script>");

             }

         }

    二.页面数据验证类

    做项目,特别做MIS,更避免不了有用户输入数据需要做有效性验证,这里我总结封装了一个页面数据校验的工具类,用起来也是很方便。

         /// <summary>

         /// 页面数据校验类

         /// 李天平

         /// 2004.8

         /// </summary>

         public class PageValidate

         {

             private static Regex RegNumber = new Regex("^[0-9]+$");

             private static Regex RegNumberSign = new Regex("^[+-]?[0-9]+$");

             private static Regex RegDecimal = new Regex("^[0-9]+[.]?[0-9]+$");

             private static Regex RegDecimalSign = new Regex("^[+-]?[0-9]+[.]?[0-9]+$"); //等价于^[+-]?\d+[.]?\d+$

             private static Regex RegEmail = new Regex("^[\\w-]+@[\\w-]+\\.(com|net|org|edu|mil|tv|biz|info)$");//w 英文字母或数字的字符串,和 [a-zA-Z0-9] 语法一样

             private static Regex RegCHZN = new Regex("[\u4e00-\u9fa5]");

             public PageValidate()

             {

             }

             #region 数字字符串检查              

             /// <summary>

             /// 检查Request查询字符串的键值,是否是数字,最大长度限制

             /// </summary>

             /// <param name="req">Request</param>

             /// <param name="inputKey">Request的键值</param>

             /// <param name="maxLen">最大长度</param>

             /// <returns>返回Request查询字符串</returns>

             public static string FetchInputDigit(HttpRequest req, string inputKey, int maxLen)

             {

                  string retVal = string.Empty;

                  if(inputKey != null && inputKey != string.Empty)

                  {

                       retVal = req.QueryString[inputKey];

                       if(null == retVal)

                           retVal = req.Form[inputKey];

                       if(null != retVal)

                       {

                           retVal = SqlText(retVal, maxLen);

                           if(!IsNumber(retVal))

                                retVal = string.Empty;

                       }

                  }

                  if(retVal == null)

                       retVal = string.Empty;

                  return retVal;

             }       

             /// <summary>

             /// 是否数字字符串

             /// </summary>

             /// <param name="inputData">输入字符串</param>

             /// <returns></returns>

             public static bool IsNumber(string inputData)

             {

                  Match m = RegNumber.Match(inputData);

                  return m.Success;

             }       

             /// <summary>

             /// 是否数字字符串可带正负号

             /// </summary>

             /// <param name="inputData">输入字符串</param>

             /// <returns></returns>

             public static bool IsNumberSign(string inputData)

             {

                  Match m = RegNumberSign.Match(inputData);

                  return m.Success;

             }       

             /// <summary>

             /// 是否是浮点数

             /// </summary>

             /// <param name="inputData">输入字符串</param>

             /// <returns></returns>

             public static bool IsDecimal(string inputData)

             {

                  Match m = RegDecimal.Match(inputData);

                  return m.Success;

             }       

             /// <summary>

             /// 是否是浮点数可带正负号

             /// </summary>

             /// <param name="inputData">输入字符串</param>

             /// <returns></returns>

             public static bool IsDecimalSign(string inputData)

             {

                  Match m = RegDecimalSign.Match(inputData);

                  return m.Success;

             }

             #endregion

             #region 中文检测

             /// <summary>

             /// 检测是否有中文字符

             /// </summary>

             /// <param name="inputData"></param>

             /// <returns></returns>

             public static bool IsHasCHZN(string inputData)

             {

                  Match m = RegCHZN.Match(inputData);

                  return m.Success;

             }

             #endregion

             #region 邮件地址

             /// <summary>

             /// 是否是浮点数可带正负号

             /// </summary>

             /// <param name="inputData">输入字符串</param>

             /// <returns></returns>

             public static bool IsEmail(string inputData)

             {

                  Match m = RegEmail.Match(inputData);

                  return m.Success;

             }

             #endregion

             #region 其他

             /// <summary>

             /// 检查字符串最大长度,返回指定长度的串

             /// </summary>

             /// <param name="sqlInput">输入字符串</param>

             /// <param name="maxLength">最大长度</param>

             /// <returns></returns>         

             public static string SqlText(string sqlInput, int maxLength)

             {            

                  if(sqlInput != null && sqlInput != string.Empty)

                  {

                       sqlInput = sqlInput.Trim();                            

                       if(sqlInput.Length > maxLength)//按最大长度截取字符串

                           sqlInput = sqlInput.Substring(0, maxLength);

                  }

                  return sqlInput;

             }       

             /// <summary>

             /// 字符串编码

             /// </summary>

             /// <param name="inputData"></param>

             /// <returns></returns>

             public static string HtmlEncode(string inputData)

             {

                  return HttpUtility.HtmlEncode(inputData);

             }

             /// <summary>

             /// 设置Label显示Encode的字符串

             /// </summary>

             /// <param name="lbl"></param>

             /// <param name="txtInput"></param>

             public static void SetLabel(Label lbl, string txtInput)

             {

                  lbl.Text = HtmlEncode(txtInput);

             }

             public static void SetLabel(Label lbl, object inputObj)

             {

                  SetLabel(lbl, inputObj.ToString());

             }       

             #endregion

    }

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  • 原文地址:https://www.cnblogs.com/ghd258/p/253238.html
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