Mega Code Archive

 
Categories / ASP.Net / Language Basics
 

Time limit validation (C#)

<%@ Page Language="C#" %> <script runat="server">     void Page_Load()     {         if (!Page.IsPostBack)             ResetStartTime();     }          void btnAgain_Click(Object sender, EventArgs e)     {         ResetStartTime();     }          void ResetStartTime()     {         Session["StartTime"] = DateTime.Now;     }               void valAnswer_ServerValidate(Object source, ServerValidateEventArgs args)     {         DateTime startTime = (DateTime)Session["StartTime"];         if (startTime.AddSeconds(5) > DateTime.Now)             args.IsValid = true;         else             args.IsValid = false;     } </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head id="Head1" runat="server">     <title>Timed Test</title> </head> <body>     <form id="form1" runat="server">     <div>          <p>     You have 5 seconds to answer the following question:     </p>          <asp:Label         id="lblQuestion"         Text="What was Aristotle's first name?"         AssociatedControlID="txtAnswer"         Runat="server" />     <br />     <asp:TextBox         id="txtAnswer"         Runat="server" />         <asp:CustomValidator         id="valAnswer"         Text="(You answered too slowly!)"         OnServerValidate="valAnswer_ServerValidate"         Runat="server"  />          <br /><br />          <asp:Button         id="btnSubmit"         Text="Submit"         Runat="server" />          <asp:Button         id="btnAgain"         Text="Try Again!"         CausesValidation="false"         OnClick="btnAgain_Click"         Runat="server" />          </div>     </form> </body> </html>