asp用Request.Form("ID")接收"ID"后,有什么办法使.Form("id")内容清空,使“刷新"不再执行。

ly2099 2000-03-19 02:47:00
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zwboy 2000-03-19
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设置 Response.Expires = 0 以及在Session中设置一个接收"ID"Flag。
然后判断Flag
特别说明请注意: 根许多网友反应, using Maticsoft.Functions; 这些代码看不懂 其实Functions 这个dll是我定义常用的函数类,如果需要跟我联系索取http://sql8.net 下面有我的群号, 其中 ArtsShop.Model.Arts_Product _p = new ArtsShop.Model.Arts_Product(); ArtsShop.BLL.Arts_Product p = new ArtsShop.BLL.Arts_Product(); _p = p.GetModel(id); 这是我的商品信息的类,三层结构,这个在用时你们只能换成你们自己的,这些代码完全可以删除, 比如 MyDr[1] = _p.Title; 用来读取商品名的,你们可以改MyDr[1] = dr["productname"].ToString();就行了, AddToCart.aspx页面代码 无标题页 <asp:TextBox ID="TextBox1" runat="server" Text='' Width="44px"> <asp:Label ID="Label1" runat="server" Text=''> 保存 取消 编辑 继续购物 清空购物车 下订单 AddToCart.aspx.cs页面代码 using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using Maticsoft.Functions;public partial class AddToCart : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { int ProID; HttpCookie cookie; bool Tempbl = false; string Tempstr; if (!Page.IsPostBack) { if (!object.Equals(Request.QueryString["id"], null)) { ProID = int.Parse(Request.QueryString["id"]); //创购物车cookie yxy .//sql8.net if (object.Equals(Request.Cookies["ztbscart"], null)) cookie = new HttpCookie("ztbscart"); else cookie = Request.Cookies["ztbscart"]; //判断是否已存在于购物车内 yxy // sql8.net for (int i = 0; i < cookie.Values.Keys.Count; i++) { if (!object.Equals(cookie.Values.Keys[i], null)) { Tempstr = cookie.Values.AllKeys[i].ToString(); if (Tempstr.Trim() != "") { if (ProID == int.Parse(cookie.Values.AllKeys[i])) { Tempbl = true; break; } } } } //不未购买过则加入购物车 yxy //sql8.net if (!Tempbl) cookie.Values.Add(ProID.ToString(), "1"); else { } TimeSpan ts = new TimeSpan(0, 0, 10, 0); cookie.Expires = DateTime.Now + ts; Response.AppendCookie(cookie); } BindGrid(); } } //绑定数据 yxy //sql8.net private void BindGrid() { DataTable MyDt; DataRow MyDr; string str = ""; MyDt = new DataTable(); MyDt.Columns.Add(new DataColumn("id", str.GetType())); MyDt.Columns.Add(new DataColumn("Title", str.GetType())); MyDt.Columns.Add(new DataColumn("Num", str.GetType())); MyDt.Columns.Add(new DataColumn("Price", str.GetType())); MyDt.Columns.Add(new DataColumn("Discount", str.GetType())); MyDt.Columns.Add(new DataColumn("Vipprice", str.GetType())); MyDt.Columns.Add(new DataColumn("Totle", str.GetType())); if (!object.Equals(Request.Cookies["ztbscart"], null)) { HttpCookie cookie = Request.Cookies["ztbscart"]; double Totle; //Response.Write("|" + Request.Cookies["ztbscart"].Values.Keys[1].ToString() + "|"); //Response.End(); for (int i = 0; i < cookie.Values.Keys.Count; i++) { int id; MyDr = MyDt.NewRow(); if (cookie.Values.AllKeys[i] != "" && cookie.Values[i] != "") { id = int.Parse(cookie.Values.AllKeys[i].ToString()); ArtsShop.Model.Arts_Product _p = new ArtsShop.Model.Arts_Product(); ArtsShop.BLL.Arts_Product p = new ArtsShop.BLL.Arts_Product(); _p = p.GetModel(id); MyDr[0] = id; MyDr[1] = _p.Title; MyDr[2] = cookie.Values[i]; MyDr[3] = _p.Price; MyDr[4] = _p.Discount; MyDr[5] = _p.Vipprice1; Totle = double.Parse(MyDr[2].ToString()) * double.Parse(MyDr[5].ToString()); MyDr[6] = Totle; MyDt.Rows.Add(MyDr); } } GridView1.DataSource = MyDt.DefaultView; GridView1.DataBind(); } } protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) { //编辑某行数量 yxy //sql8.net GridView1.EditIndex = e.NewEditIndex; BindGrid(); } protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) { //取消更新 yxy //sql8.net GridView1.EditIndex = -1; BindGrid(); } protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) { //更新数量 yxy //sql8.net string num; TextBox tempbx = new TextBox(); Label templb = new Label(); tempbx = (TextBox)(GridView1.Rows[e.RowIndex].Cells[6]).Controls[1]; num = tempbx.Text.ToString(); HttpCookie cookie = new HttpCookie("ztbscart"); for (int i = 0; i < GridView1.Rows.Count; i++) { string id; string tempnum; id = GridView1.Rows[i].Cells[1].Text.ToString(); if (e.RowIndex == i) tempnum = num; else { templb = (Label)(GridView1.Rows[i].Cells[6]).Controls[1]; tempnum = templb.Text.ToString(); } if (tempnum.Trim() == "") tempnum = "0"; //Response.Write("ID:"+id.ToString() + "Num:"+tempnum+":"+i+"");//测试用途 yxy//sql8.net cookie.Values.Add(id, tempnum); } //Response.End(); TimeSpan ts = new TimeSpan(0, 0, 10, 0); cookie.Expires = DateTime.Now + ts; Response.AppendCookie(cookie); GridView1.EditIndex = -1; Message.GoTo("AddToCart.aspx"); } protected void LinkButton4_Click(object sender, EventArgs e) { //继续购物 yxy //sql8.net Message.WebClose(); } protected void LinkButton3_Click(object sender, EventArgs e) { //清空购物车 yxy //sql8.net CheckBox tempcb = new CheckBox(); HttpCookie cookie = new HttpCookie("ztbscart"); Label templb = new Label(); for (int i = 0; i < GridView1.Rows.Count; i++) { tempcb = (CheckBox)(GridView1.Rows[i].Cells[0]).Controls[1]; if (!tempcb.Checked) { string id; string tempnum; id = GridView1.Rows[i].Cells[1].Text.ToString(); templb = (Label)(GridView1.Rows[i].Cells[6]).Controls[1]; tempnum = templb.Text.ToString(); if (tempnum.Trim() == "") tempnum = "0"; //Response.Write("ID:"+id.ToString() + "Num:"+tempnum+":"+i+"");//测试用途 yxy//sql8.net cookie.Values.Add(id, tempnum); } } TimeSpan ts = new TimeSpan(0, 0, 10, 0); cookie.Expires = DateTime.Now + ts; Response.AppendCookie(cookie); Message.GoTo("AddToCart.aspx"); } protected void CheckAll_CheckedChanged(object sender, EventArgs e) { //全选事件 yxy //sql8.net CheckBox tempcb = new CheckBox(); bool tempbl; tempcb = (CheckBox)(GridView1.HeaderRow.Cells[0]).Controls[1]; tempbl = tempcb.Checked; for (int i = 0; i < GridView1.Rows.Count; i++) { tempcb = (CheckBox)(GridView1.Rows[i].Cells[0]).Controls[1]; tempcb.Checked = tempbl; } } } _________________________________________________________________________ 如转载请注明原出处 www.sql8.net
第一个文件ajax_txt.asp的代码: (此页是AJAX异步提交txt文本文件的路径到ajax_txt_save.asp页面,并从ajax_txt_save.asp获取返回的数据) 无标题文档 <script type="text/javascript">

JS读取文本文件的内容并赋值给textarea控件

<form id="form1" name="form1" action="index.asp?Action=Write" method="post"> id="FileName" name="FileName" size="30">



已导入:id="num">0 条记录


form>
第二个文件ajax_txt_save.asp的代码: (此页是用ASP中的FSO来读取txt文本文件中的内容并输出,为ajax_txt.asp这个页面的AJAX异步获取提供数据) <% '//禁止缓存该页 让AJAX读取该页始终为最新而非过期缓存页 Response.Expires = 0 Response.Expiresabsolute = Now() - 1 Response.AddHeader "pragma","no-cache" Response.AddHeader "cache-control","private" Response.CacheControl = "no-cache" response.Charset="GB2312" '//数据返回的编码类型 显示中文数据必须 Dim objFSO Dim objText Dim ObjFile Dim strTextContent Dim objDrive '创建一个文件操作对象实例 Set objFSO = CreateObject("Scripting.FileSystemObject") '要打开的文件 ObjFile=trim(request("filesname")) '从文浏览控件中获取 IF objFSO.FileExists(ObjFile) then Set objText = objFSO.OpenTextFile(ObjFile,1) '循环读取数据 k=0 While not objText.AtEndOfStream '到文件的末尾 strTextContent = strTextContent & objText.ReadLine() & vbcrlf k=k+1 wend objText.Close response.write strTextContent & "," & k else strTextContent= "文件不存在" response.end() end if %> 以上代码经测试,100%能使用,且不受浏览器的安全级别限制,祝你好运!

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