ASP.NET Tutorial/ASP.Net Instroduction/Query String

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Get value from query string

   <source lang="csharp">

File: Default.aspx <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="QueryStringSender" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>Untitled Page</title>

</head> <body> 

   <form id="form1" runat="server">

   <asp:Button id="cmdLarge" 
               runat="server" 
               Text="Large Text Version" 
               OnClick="cmd_Click">
   </asp:Button>
 <asp:Button id="cmdNormal" runat="server" Text="Normal Version" OnClick="cmd_Click"></asp:Button>
 <asp:Button id="cmdSmall" runat="server" Text="Small Text Version" OnClick="cmd_Click"></asp:Button>

   </form>

</body> </html> File: Default.aspx.cs 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; public partial class QueryStringSender : System.Web.UI.Page { 

   protected void Page_Load(object sender, EventArgs e)
   {
   }
 protected void cmd_Click(object sender, EventArgs e)
 {
   Response.Redirect("NextPage.aspx" + "?Version=" +
       ((Control)sender).ID);
 }

} File: NextPage.aspx <%@ Page Language="C#" 

        AutoEventWireup="true" 
        CodeFile="NextPage.aspx.cs" 
        Inherits="QueryStringRecipient" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>Untitled Page</title>

</head> <body> 

   <form id="form1" runat="server">

   <asp:label id="lblDate" 
              runat="server" 
              Width="528px" 
              Height="112px" 
              Font-Names="Verdana" 
              Font-Size="Large" 
              EnableViewState="False">
   </asp:label>

   </form>

</body> </html> File: NextPage.aspx.cs 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; public partial class QueryStringRecipient : System.Web.UI.Page { 

   protected void Page_Load(object sender, EventArgs e)
   {
   lblDate.Text = "The time is now:
" + DateTime.Now.ToString();
   switch (Request.QueryString["Version"])
   {
     case "cmdLarge":
       lblDate.Font.Size = FontUnit.XLarge;
       break;
     case "cmdNormal":
       lblDate.Font.Size = FontUnit.Large;
       break;
     case "cmdSmall":
       lblDate.Font.Size = FontUnit.Small;
       break;
   }
   }

}</source>

Источник — «http://nfex.ru/index.php?title=ASP.NET_Tutorial/ASP.Net_Instroduction/Query_String&oldid=3080»