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//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、表格超链接列传递参数 <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’;"); } 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 DataFormatString="{0:yyyy-MM-dd}"
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
// 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 } //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 " 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%" /> </EDITITEMTEMPLATE> </ASP:TEMPLATECOLUMN>
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}")%>
18、日期格式化 <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>显示为:2004-8-11 19:44:28 只想要:2004-8-11 <%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>
【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 |
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