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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

}

posted on 2005-10-12 17:49  LDAR泄漏检测与修复  阅读(1487)  评论(1编辑  收藏  举报