1.//彈出對話框.點擊轉向指定頁面 2.//彈出對話框 3.//刪除文件 4.//綁定下拉列表框datalist 5.//時間去秒顯示 6.//標題帶鏈接 7.//修改轉向 8.//彈出確定按鈕 9.//輸出數據格式化 "{0:F2}" 是格式 F2表示小數點後剩兩位 10.//提取動態網頁內容 ...
1.//彈出對話框.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.//彈出對話框
- Response.Write("<script language='javascript'>alert('產品添加成功!')</script >");
3.//刪除文件
- string filename ="20059595157517.jpg";
- pub.util.DeleteFile(HttpContext.Current.Server.MapPath("../file/")+filename);
4.//綁定下拉列表框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.//標題帶鏈接
- <%# "<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.//輸出數據格式化 "{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.//獲取" . "後面的字元
- i.ToString().Trim().Substring(i.ToString().Trim().LastIndexOf(".")+1).ToLower().Trim()
複製代碼
12. 打開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.為按鈕添加對話框
- 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信息’);");
- break;
- default:
- break;
- }
- }
15.點擊表格行鏈接另一頁
- private void grdCustomer_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
- {
- //點擊表格打開
- 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 + "’);");
- }
雙擊表格連接到另一頁在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 + "’");
- }
雙擊表格打開新一頁
- 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.表格超連接列傳遞參數
- <asp:HyperLinkColumn Target="_blank" headertext="ID號" DataTextField="id" NavigateUrl="aaa.aspx?id=’
- <%# DataBinder.Eval(Container.DataItem, "數據欄位1")%>’ & name=’<%# DataBinder.Eval(Container.DataItem, "數據欄位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=’’;");
- }
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.獲取錯誤信息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信息,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信息併進行相應的處理 20.清空Cookie
- Cookie.Expires=[DateTime];
- Response.Cookies("UserName").Expires = 0
21.自定義異常處理
- //自定義異常處理類
- 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的應用程式日誌
- /// </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>
- /// 事件日誌記錄類,提供事件日誌記錄支持
- /// <remarks>
- /// 定義了4個日誌記錄方法 (error, warning, info, trace)
- /// </remarks>
- /// </summary>
- public class ApplicationLog
- {
- /// <summary>
- /// 將錯誤信息記錄到Win2000/NT事件日誌中
- /// <param name="message">需要記錄的文本信息</param>
- /// </summary>
- public static void WriteError(String message)
- {
- WriteLog(TraceLevel.Error, message);
- }
- /// <summary>
- /// 將警告信息記錄到Win2000/NT事件日誌中
- /// <param name="message">需要記錄的文本信息</param>
- /// </summary>
- public static void WriteWarning(String message)
- {
- WriteLog(TraceLevel.Warning, message);
- }
- /// <summary>
- /// 將提示信息記錄到Win2000/NT事件日誌中
- /// <param name="message">需要記錄的文本信息</param>
- /// </summary>
- public static void WriteInfo(String message)
- {
- WriteLog(TraceLevel.Info, message);
- }
- /// <summary>
- /// 將跟蹤信息記錄到Win2000/NT事件日誌中
- /// <param name="message">需要記錄的文本信息</param>
- /// </summary>
- public static void WriteTrace(String message)
- {
- WriteLog(TraceLevel.Verbose, message);
- }
- /// <summary>
- /// 格式化記錄到事件日誌的文本信息格式
- /// <param name="ex">需要格式化的異常對象</param>
- /// <param name="catchInfo">異常信息標題字元串.</param>
- /// <retvalue>
- /// <para>格式後的異常信息字元串,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>
- /// 實際事件日誌寫入方法
- /// <param name="level">要記錄信息的級別(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 );
- //寫入事件日誌
- eventLog.WriteEntry(messageText, LogEntryType);
- }
- catch {} //忽略任何異常
- }
- } //class ApplicationLog
- }
22.Panel 橫向滾動,縱向自動擴展
- <asp:panel style="overflow-x:scroll;overflow-y:auto;"></asp:panel>
23.回車轉換成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事件的控制項上敲回車時,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超級連接列
- 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>
後臺代碼
- 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;
- }
- }
- }
27.數字格式化
- 【<%#Container.DataItem("price")%>的結果是500.0000,怎樣格式化為500.00?】
- <%#Container.DataItem("price","{0:¥#,##0.00}")%>
- int i=123456;
- string s=i.ToString("###,###.00");
28.日期格式化【aspx頁面內:<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date")%>顯示為: 2004-8-11 19:44:28 我只想要:2004-8-11 】<%# DataBinder.Eval(Container.DataItem,"Company_Ureg_Date","{0:yyyy-M-d}")%>應該如何改?【格式化日期】取出來,一般是object((DateTime)objectFromDB).ToString("yyyy-MM-dd"); 【日期的驗證表達式】A.以下正確的輸入格式: [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.以下正確的輸入格式:[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]))$ 【大小寫轉換】 HttpUtility.HtmlEncode(string); HttpUtility.HtmlDecode(string) 29.如何設定全局變數Global.asax中Application_Start()事件中添加Application[屬性名] = xxx; 就是你的全局變數 30.怎樣作到HyperLinkColumn生成的連接後,點擊連接,打開新視窗?HyperLinkColumn有個屬性Target,將器值設置成"_blank"即可.(Target="_blank") 【ASPNETMENU】點擊菜單項彈出新視窗在你的menuData.xml文件的菜單項中加入URLTarget="_blank",如:
- <?xml version="1.0" encoding="GB2312"?>
- <MenuData ImagesBaseURL="images/">
- <MenuGroup>
- <MenuItem Label="內參信息" URL="Infomation.aspx" >
- <MenuGroup ID="BBC">
- <MenuItem Label="公告信息" URL="Infomation.aspx" URLTarget="_blank" LeftIcon="file.gif"/>
- <MenuItem Label="編製信息簡報" URL="NewInfo.aspx" LeftIcon="file.gif" />
最好將你的aspnetmenu升級到1.2版 31.讀取DataGrid控制項TextBox值
- foreach(DataGrid dgi in yourDataGrid.Items)
- {
- TextBox tb = (TextBox)dgi.FindControl("yourTextBoxId");
- tb.Text....
- }
33.在DataGrid中有3個模板列包含Textbox分別為 DG_ShuLiang (數量) DG_DanJian(單價) DG_JinE(金額)分別在5.6.7列,要求在錄入數量及單價的時候自動算出金額即:數量*單價=金額還要求錄入時限製為 數值型.我如何用客戶端腳本實現這個功能?
- <asp:TemplateColumn HeaderText="數量">
- <ItemTemplate>
- <asp:TextBox id="ShuLiang" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_ShuLiang")%>’
- />
- <asp:RegularExpressionValidator id="revS" runat="server" C ErrorMessage="must be integer" Validati />
- </ItemTemplate>
- </asp:TemplateColumn>
- <asp:TemplateColumn HeaderText="單價">
- <ItemTemplate>
- <asp:TextBox id="DanJian" runat=’server’ Text=’<%# DataBinder.Eval(Container.DataItem,"DG_DanJian")%>’
- />
- <asp:RegularExpressionValidator id="revS2" runat="server" C ErrorMessage="must be numeric" Validati />
- </ItemTemplate>
- </asp:TemplateColumn>
- <asp:TemplateColumn HeaderText="金額">
- <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>
34.datagrid選定比較底下的行時,為什麼總是刷新一下,然後就滾動到了最上面,剛纔選定的行因屏幕的關係就看不到了。 page_load page.smartNavigation=true 35.在Datagrid中修改數據,當點擊編輯鍵時,數據出現在文本框中,怎麼控制文本框的大小 ?
- 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.Attributes.Add("Width", "80px")
- }
- }
36.對話框
- private static string ScriptBegin = "<script language=\"JavaScript\">";
- private static string ScriptEnd = "</script>";
- public static void ConfirmMessageBox(string PageTarget,string Content)
- {
- string C+Content+"’);"+"if(retValue){window.location=’"+PageTarget+"’;}";
- ConfirmContent=ScriptBegin + ConfirmContent + ScriptEnd;
- Page ParameterPage = (Page)System.Web.HttpContext.Current.Handler;
- ParameterPage.RegisterStartupScript("confirm",ConfirmContent);
- //Response.Write
複製代碼
(strScript); } 37. 將時間格式化:string aa=DateTime.Now.ToString("yyyy年MM月dd日"); 1.1 取當前年月日時分秒 currentTime=System.DateTime.Now; 1.2 取當前年 int 年= DateTime.Now.Year; 1.3 取當前月 int 月= DateTime.Now.Month; 1.4 取當前日 int 日= DateTime.Now.Day; 1.5 取當前時 int 時= DateTime.Now.Hour; 1.6 取當前分 int 分= DateTime.Now.Minute; 1.7 取當前秒 int 秒= DateTime.Now.Second; 1.8 取當前毫秒 int 毫秒= DateTime.Now.Millisecond; 38.自定義分頁代碼:先定義變數 :
- public static int pageCount; //總頁面數
- public static int curPageIndex=1; //當前頁面
- 下一頁:
- if(DataGrid1.CurrentPageIndex < (DataGrid1.PageCount - 1))
- {
- DataGrid1.CurrentPageIndex += 1;
- curPageIndex+=1;
- }
- bind(); // DataGrid1數據綁定函數
- 上一頁:
- if(DataGrid1.CurrentPageIndex >0)
- {
- DataGrid1.CurrentPageIndex += 1;
- curPageIndex-=1;
- }
- bind(); // DataGrid1數據綁定函數
- 直接頁面跳轉:
- int a=int.Parse(JumpPage.Value.Trim());//JumpPage.Value.Trim()為跳轉值
- if(a<DataGrid1.PageCount)
- {
- this.DataGrid1.CurrentPageIndex=a;
- }
- bind();
39.DataGrid使用: 添加刪除確認:
- private void DataGrid1_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
- {
- foreach(DataGridItem di in this.DataGrid1.Items)
- {
- if(di.ItemType==ListItemType.Item||di.ItemType==ListItemType.AlternatingItem)
- {
- ((LinkButton)di.Cells[8].Controls[0]).Attributes.Add("onclick","return confirm(’確認刪除此項嗎?’);");
- }
- }
- }
樣式交替:
- ListItemType itemType = e.Item.ItemType;
- if (itemType == ListItemType.Item )
- {
- e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#FFFFFF’;";
- e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
- }
- else if( itemType == ListItemType.AlternatingItem)
- {
- e.Item.Attributes["onmouseout"] = "javascript:this.style.backgroundColor=’#a0d7c4’;";
- e.Item.Attributes["onmouseover"] = "javascript:this.style.backgroundColor=’#d9ece1’;cursor=’hand’;" ;
- }
添加一個編號列:
- DataTable dt= c.ExecuteRtnTableForAccess(sqltxt); //執行sql返回的DataTable
- DataColumn dc=dt.Columns.Add("number",System.Type.GetType("System.String"));
- for(int i=0;i<dt.Rows.Count;i++)
- {
- dt.Rows["number"]=(i+1).ToString();
- }
- DataGrid1.DataSource=dt;
- DataGrid1.DataBind();
- DataGrid1中添加一個CheckBox,頁面中添加一個全選框
- private void CheckBox2_CheckedChanged(object sender, System.EventArgs e)
- {
- foreach(DataGridItem thisitem in DataGrid1.Items)
- {
- ((CheckBox)thisitem.Cells[0].Controls[1]).Checked=CheckBox2.Checked;
- }
- }
將當前頁面中DataGrid1顯示的數據全部刪除
- foreach(DataGridItem thisitem in DataGrid1.Items)
- {
- if(((CheckBox)thisitem.Cells[0].Controls[1]).Checked)
- {
- string strloginid= DataGrid1.DataKeys[thisitem.ItemIndex].ToString();
- Del (strloginid); //刪除函數
- }
- }
40.當文件在不同目錄下,需要獲取資料庫連接字元串(如果連接字元串放在Web.config,然後在Global.asax中初始化) 在Application_Start中添加以下代碼:
- Application["ConnStr"]=this.Context.Request.PhysicalApplicationPath+ConfigurationSettings.
- AppSettings["ConnStr"].ToString();
3 41. 變數.ToString() 字元型轉換 轉為字元串
- 12345.ToString("n"); //生成 12,345.00
- 12345.ToString("C"); //生成 ¥12,345.00
- 12345.ToString("e"); //生成 1.234500e+004
- 12345.ToString("f4"); //生成 12345.0000
- 12345.ToString("x"); //生成 3039 (16進位)
- 12345.ToString("p"); //生成 1,234,500.00%
42、變數.Substring(參數1,參數2); 截取字串的一部分,參數1為左起始位數,參數2為截取幾位。 如:string s1 = str.Substring(0,2); 43.在自己的網站上登陸其他網站:(如果你的頁面是通過嵌套方式的話,因為一個頁面只能有一個FORM,這時可以導向另外一個頁面再提交登陸信息)
- <SCRIPT language="javascript">
- <!--
- function gook(pws)
- {
- frm.submit();
- }
- //-->
- </SCRIPT> <body leftMargin="0" topMargin="0" marginwidth="0" marginheight="0">
- <form name="frm" action=" http://www.51aspx.com " method="post">
- <tr>
- <td>
- <input id="f_user" type="hidden" size="1" name="f_user" runat="server">
- <input id="f_domain" type="hidden" size="1" name="f_domain" runat="server">
- <input class="box" id="f_pass" type="hidden" size="1" name="pwshow" runat="server">
- <INPUT id="lng" type="hidden" maxLength="20" size="1" value="5" name="lng">
- <INPUT id="tem" type="hidden" size="1" value="2" name="tem">
- </td>
- </tr>
- </form>
文本框的名稱必須是你要登陸的網頁上的名稱,如果源碼不行可以用vsniffer 看看。 下麵是獲取用戶輸入的登陸信息的代碼:
- string name;
- name=Request.QueryString["EmailName"];
- try
- {
- int a=name.IndexOf("@",0,name.Length);
- f_user.Value=name.Substring(0,a);
- f_domain.Value=name.Substring(a+1,name.Length-(a+1));
- f_pass.Value=Request.QueryString["Psw"];
- }
- catch
- {
- Script.Alert("錯誤的郵箱!");
- Server.Transfer("index.aspx");
- }
44.datagrid分頁中如果刪除時出現超出索引
- public void jumppage(System.Web.UI.WebControls.DataGrid dg)
- {
- int int_PageLess; //定義頁面跳轉的頁數
- //如果當前頁是最後一頁
- if(dg.CurrentPageIndex == dg.PageCount-1)
- {
- //如果就只有一頁
- if(dg.CurrentPageIndex == 0)
- {
- //刪除後頁面停在當前頁
- dg.CurrentPageIndex = dg.PageCount-1;
- }
- else
- {
- //如果最後一頁只有一條記錄
- if((dg.Items.Count % dg.PageSize == 1) || dg.PageSize == 1)
- {
- //把最後一頁最後一條記錄刪除後,頁面應跳轉到前一頁
- int_PageLess = 2;
- }
- else //如果最後一頁的記錄數大於1,那麼在最後一頁刪除記錄後仍然停在當前頁
- {
- int_PageLess = 1;
- }
- dg.CurrentPageIndex = dg.PageCount - int_PageLess;
- }
- }
- }
45.警告視窗 /**//// <summary> /// 伺服器端彈出alert對話框 /// </summary> /// <param name="str_Message">提示信息,例子:"不能為空!"</param> /// <param name="page">Page類</param> public void Alert(string str_Message,Page page) { page.RegisterStartupScript("","<script>alert('"+str_Message+"');</script>"); } 36.重載此警告視窗,使某控制項獲得焦點
- /**//// <summary>
- /// 伺服器端彈出alert對話框,並使控制項獲得焦點
- /// </summary>
- /// <param name="str_Ctl_Name">獲得焦點控制項Id值,比如:txt_Name</param>
- /// <param name="str_Message">提示信息,例子:"請輸入您姓名!"</param>
- /// <param name="page">Page類</param>
- public void Alert(string str_Ctl_Name,string str_Message,Page page)
- {
- page.RegisterStartupScript("","<script>alert('"+str_Message+"');document.forms(0)."+str_Ctl_Name+".focus(); document.forms(0)."+str_Ctl_Name+".select();</script>");
- }
47.確認對話框
- /**//// <summary>
- /// 伺服器端彈出confirm對話框
- /// </summary>
- /// <param name="str_Message">提示信息,例子:"您是否確認刪除!"</param>
- /// <param name="btn">隱藏Botton按鈕Id值,比如:btn_Flow</param>
- /// <param name="page">Page類</param>
- public void Confirm(string str_Message,string btn,Page page)
- {
- page.RegisterStartupScript("","<script> if (confirm('"+str_Message+"')==true){document.forms(0)."+btn+".click();}</script>");
- }
48.重載確認對話框,點擊確定觸發一個隱藏按鈕事件,點擊取消觸發一個隱藏按鈕事件
- /**//// <summary>
- /// 伺服器端彈出confirm對話框,詢問用戶準備轉向那些操作,包括“確定”和“取消”時的操作
- /// </summary>
- /// <param name="str_Message">提示信息,比如:"成功增加數據,單擊\"確定\"按鈕填寫流程,單擊\"取消\"修改數據"</param>
- /// <param name="btn_Redirect_Flow">"確定"按鈕id值</param>
- /// <param name="btn_Redirect_Self">"取消"按鈕id值</param>
- /// <param name="page">Page類</param>
- public void Confirm(string str_Message,string btn_Redirect_Flow,string btn_Redirect_Self,Page page)
- {
- page.RegisterStartupScript("","<script> if (confirm('"+str_Message+"')==true){document.forms(0)."+btn_Redirect_Flow+".click();}else{document.forms(0)."+btn_Redirect_Self+".click();}</script>");
- }
49.獲得焦點
- /**//// <summary>
- /// 使控制項獲得焦點
- /// </summary>
- /// <param name="str_Ctl_Name">獲得焦點控制項Id值,比如:txt_Name</param>
- /// <param name="page">Page類</param>
- public void GetFocus(string str_Ctl_Name,Page page)
- {
- page.RegisterStartupScript("","<script>document.forms(0)."+str_Ctl_Name+".focus(); document.forms(0)."+str_Ctl_Name+".select();</script>");
- }