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Editorial Team
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Asked: 2026-06-16T00:21:01+00:00

I trying asp.net and trying posting data from one page to other. It was

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I trying asp.net and trying posting data from one page to other. It was so easy in PHP .
I have two aspx web pages Page1.aspx and Page2.aspx

Page1.aspx has a drop downlist in which i select an option and on clicking submit button , this value should be passed to Page2.aspx and captured by its codebehindfile Page2.aspx.cs by Request.Form[].

Page1.aspx

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Page1.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
</head>
<body>  

    <form id="form1" runat="server" method="post" action="Page2.aspx">

<asp:DropDownList id="DropDownList1" runat="server" >

<asp:ListItem value="">Select</asp:ListItem>
<asp:ListItem value="1">Hello</asp:ListItem>
<asp:ListItem value="2">World</asp:ListItem>
</asp:DropDownList>



<asp:Button  runat="server"  />  
      </form>  
    </body>
    </html>

How to pass value from Page1.aspx? What am I doing wrong in the form tag? What is the alternative method?
What should I do in Page2.aspx to capture the selected value from the drop-down list?

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1 Answer

  1. Editorial Team

    First of all there are lot of difference while working on .net from PHP.
    use this link for better understanding.
    http://net.tutsplus.com/tutorials/asp-net/asp-net-for-php-developers-part-2/

    For your question change few things.

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

    1) don’t use the action here, we will use the button click for that.

    <asp:button id="btnSubmit" onclick="btnSubmit_OnClick" Text="Click Me" Runat="server"></asp:button>

    2)Change the button ,to this and create an event for button click on Page1.aspx.cs

    protected void btnSubmit_OnClick(object sender, EventArgs e)
{
if (DropDownList1.SelectedItem.Value.Length > 0)
{
                Response.Redirect("Page2.aspx?SelectedValue=" + DropDownList1.SelectedValue);
}
}

    3) On button click check if any value is selected, If selected take the value and pass it on the second page via QueryString.

    On Page2.aspx.cs

        protected void Page_Load(object sender, EventArgs e)
    {
          string v = Request.QueryString["SelectedValue"];
     }
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