1.//彈出對話方塊.點擊轉向指定頁面 Response.Write(" <script>window.alert('該會員沒有提交申請,請重新提交!')</script>"); Response.Write(" <script>window.location='http://www.51aspx.com/bizpulic/upmeb.aspx' </script>");2.//彈出對話方塊 Response.Write(" <script language='javascript'>alert('產品添加成功!')</script >"); 3.//刪除檔案 string filename ="20059595157517.jpg"; pub.util.DeleteFile(HttpContext.Current.Server.MapPath("../file/")+filename); 4.//綁定下拉式清單方塊datalist System.Data.DataView dv=conn.Exec_ex("select -1 as code,'請選擇經營模式' as content from dealin union select code,content from dealin"); this.dealincode.DataSource=dv; this.dealincode.DataTextField="content"; this.dealincode.DataValueField="code"; this.dealincode.DataBind(); this.dealincode.Items.FindByValue(dv[0]["dealincode"].ToString()).Selected=true; 5.//時間去秒顯示 <%# System.DateTime.Parse(DataBinder.Eval(Container.DataItem,"begtime").ToString()).ToShortDateString()%> 6.//標題帶連結 <%# " <a class=\"12c\" target=\"_blank\" href=\"http://www.51aspx/CV/_"+DataBinder.Eval(Container.DataItem,"procode")+".html\">"+DataBinder.Eval(Container.DataItem,"proname")+" </a>"%> 7.//修改轉向 <%# " <A href=\"editpushpro.aspx?id="+DataBinder.Eval(Container.DataItem,"code")+"\">"+"修改"+" </A>"%> 8.//彈出確定按鈕 <%# " <A id=\"btnDelete\" onclick=\"return confirm('你是否確定刪除這條記錄嗎?');\" href=\"pushproduct.aspx?dl="+DataBinder.Eval(Container.DataItem,"code")+"\">"+"刪除"+" </A>"%> 9.//輸出資料格式化 "{0:F2}" 是格式 F2表示小數點後剩兩位 <%# DataBinder.Eval(Container, "DataItem.PriceMoney","{0:F2}") %> 10.//提取動態網頁內容 Uri uri = new Uri("http://www.51aspx.com/"); WebRequest req = WebRequest.Create(uri); WebResponse resp = req.GetResponse(); Stream str = resp.GetResponseStream(); StreamReader sr = new StreamReader(str,System.Text.Encoding.Default); string t = sr.ReadToEnd(); this.Response.Write(t.ToString()); 11.//擷取" . "後面的字元 i.ToString().Trim().Substring(i.ToString().Trim().LastIndexOf(".")+1).ToLower().Trim() 12. 開啟新的視窗並傳送參數: 傳送參數: response.write("<script>window.open(’*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"’)</script>") 接收參數: string a = Request.QueryString("id"); string b = Request.QueryString("id1"); 12.為按鈕添加對話方塊 Button1.Attributes.Add("onclick","return confirm(’確認?’)"); button.attributes.add("onclick","if(confirm(’are you sure...?’)){return true;}else{return false;}") 13.刪除表格選定記錄 int intEmpID = (int)MyDataGrid.DataKeys[e.Item.ItemIndex]; string deleteCmd = "Delete from Employee where emp_id = " +intEmpID.ToString() 14.刪除表格記錄警告 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(’您是否確定要刪除這條資訊’);"); break; default: break; } } 15.點擊表格行連結另一頁 private void grdCustomer_ItemDataBound(object sender,System.Web.UI.WebControls.DataGridItemEventArgs e) { //點擊表格開啟 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 + "’);"); } 雙擊表格串連到另一頁 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 + "’"); } 雙擊表格開啟新一頁 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 +"’)"); } 16.表格超串連列傳遞參數 <asp:HyperLinkColumn Target="_blank" headertext="ID號" DataTextField="id" NavigateUrl="aaa.aspx?id=’ <%# DataBinder.Eval(Container.DataItem, "資料欄位1")%>'&name=’<%# DataBinder.Eval(Container.DataItem, "資料欄位2")%>’/> 17.表格點擊改變顏色 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’;"); } 寫在DataGrid的_ItemDataBound裡 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=’’;"); } 18.關於日期格式 日期格式設定 DataFormatString="{0:yyyy-MM-dd}" 我覺得應該在itembound事件中 e.items.cell["你的列"].text=DateTime.Parse(e.items.cell["你的列"].text.ToString("yyyy-MM-dd")) 19.擷取錯誤資訊併到指定頁面 不要使用Response.Redirect,而應該使用Server.Transfer e.g // in global.asax protected void Application_Error(Object sender, EventArgs e) { if (Server.GetLastError() is HttpUnhandledException) Server.Transfer("MyErrorPage.aspx"); //其餘的非HttpUnhandledException異常交給ASP.NET自己處理就okay了 } Redirect會導致post-back的產生從而丟失了錯誤資訊,所以頁面導嚮應該直接在伺服器端執行,這樣就可以在錯誤處理頁面得到出錯資訊並進行相應的處理 20.清空Cookie Cookie.Expires=[DateTime]; Response.Cookies("UserName").Expires = 0 21.自訂異常處理 //自訂異常處理類 using System; using System.Diagnostics; namespace MyAppException { /// <summary> /// 從系統異常類ApplicationException繼承的應用程式異常處理類。 /// 自動將異常內容記錄到Windows NT/2000的應用程式記錄檔 /// </summary> public class AppException:System.ApplicationException { public AppException() { if (ApplicationConfiguration.EventLogEnabled)LogEvent("出現一個未知錯誤。"); } public AppException(string message) { LogEvent(message); } public AppException(string message,Exception innerException) { LogEvent(message); if (innerException != null) { LogEvent(innerException.Message); } } //日誌記錄類 using System; using System.Configuration; using System.Diagnostics; using System.IO; using System.Text; using System.Threading; namespace MyEventLog { /// <summary> /// 事件記錄記錄類,提供事件記錄記錄支援 /// <remarks> /// 定義了4個日誌記錄方法 (error, warning, info, trace) /// </remarks> /// </summary> public class ApplicationLog { /// <summary> /// 將錯誤資訊記錄到Win2000/NT事件記錄中 /// <param name="message">需要記錄的文本資訊</param> /// </summary> public static void WriteError(String message) { WriteLog(TraceLevel.Error, message); } /// <summary> /// 將警告資訊記錄到Win2000/NT事件記錄中 /// <param name="message">需要記錄的文本資訊</param> /// </summary> public static void WriteWarning(String message) { WriteLog(TraceLevel.Warning, message); } /// <summary> /// 將提示資訊記錄到Win2000/NT事件記錄中 /// <param name="message">需要記錄的文本資訊</param> /// </summary> public static void WriteInfo(String message) { WriteLog(TraceLevel.Info, message); } /// <summary> /// 將跟蹤資訊記錄到Win2000/NT事件記錄中 /// <param name="message">需要記錄的文本資訊</param> /// </summary> public static void WriteTrace(String message) { WriteLog(TraceLevel.Verbose, message); } /// <summary> /// 格式化記錄到事件記錄的文本資訊格式 /// <param name="ex">需要格式化的異常對象</param> /// <param name="catchInfo">異常資訊標題字串.</param> /// <retvalue> /// <para>格式後的異常資訊字串,包括異常內容和跟蹤堆棧.</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> /// 實際事件記錄寫入方法 /// <param name="level">要記錄資訊的層級(error,warning,info,trace).</param> /// <param name="messageText">要記錄的文本.</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 ); //寫入事件記錄 eventLog.WriteEntry(messageText, LogEntryType); } catch {} //忽略任何異常 } } //class ApplicationLog } 22.Panel 橫向滾動,縱向自動擴充 <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel> 23.斷行符號轉換成Tab (1) <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> (2) //當在有keydown事件的控制項上敲斷行符號時,變為tab public void Tab(System.Web .UI.WebControls .WebControl webcontrol) { webcontrol.Attributes .Add ("onkeydown", "if(event.keyCode==13) event.keyCode=9"); } 24.DataGrid超級串連列 DataNavigateUrlField="欄位名" DataNavigateUrlFormatString="http://xx/inc/delete.aspx?ID={0}" 25.DataGrid行隨滑鼠變色 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"+"\""); } } 26.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="選中"> <HEADERSTYLE wrap="False" horiz></HEADERSTYLE> <ITEMTEMPLATE> <ASP:CHECKBOX id="chkExport" runat="server" /> </ITEMTEMPLATE> <EDITITEMTEMPLATE> <ASP:CHECKBOX id="chkExportON" runat="server" enabled="true" /> </EDITITEMTEMPLATE> </ASP:TEMPLATECOLUMN> 後台代碼 protected void CheckAll_CheckedChanged(object sender, System.EventArgs e) { //改變列的選定,實現全選或全不選。 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; } } } |