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Friday, 27 May 2016

Passing Data from one page to another page in Asp.net Using C#.Net

5/27/2016 - By Pranav Singh 0

This article will show you how you can pass value from one page to another page in asp.net using c#.net. In this article I have shown three ways to pass and get the on other page.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Page1.aspx.cs" Inherits="WebApplication7.Page1" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Page 1</title>
</head>
<body>
    <form id="form1" runat="server">
        <h3>Click Button To Pass Value</h3>
        Enter Value :<asp:TextBox ID="txtValue" runat="server" Width="201px"></asp:TextBox>
        <br />
        <br />
        <div>
            <asp:Button ID="Button1" runat="server" Text="By Request Querystring" OnClick="Button1_Click" Width="203px" />
            <br />
            <br />
            <asp:Button ID="Button2" runat="server" Text="By Session" Width="204px" OnClick="Button2_Click" />
            <br />
            <br />
            <asp:Button ID="Button3" runat="server" Text="By HiddenField" Width="201px" PostBackUrl = "Page2.aspx"/><br />
        </div>
    </form>
</body>
</html>

In above code I have taken three button controls. Each button represents a way to transfer the data. In above I have passed the textbox value from one page to other page. As you execute the page1 your page will look as shown below. 


Now have a look of the below code.

Way 1:
  protected void Button1_Click(object sender, EventArgs e)
        {
            Response.Redirect("Page2.aspx?value=" + txtValue.Text);
        }

In above code I have used request querystring to pass the value. 

Way2:
protected void Button2_Click(object sender, EventArgs e)
        {
            Session["Value"] = txtValue.Text;
            Response.Redirect("Page2.aspx");
        }

In above I have used session to pass the value to other page.

Way3:
<asp:Button ID="Button3" runat="server" Text="By HiddenField" Width="201px" PostBackUrl = "Page2.aspx"/>

In above I have used PostBackUrl to pass the value and access it on other page. Now we will check the code for page2.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Page2.aspx.cs" Inherits="WebApplication7.Page2" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Page 2</title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            Request Querystring :<asp:Label ID="Label1" runat="server" Text=""></asp:Label><br />
            Session Value :<asp:Label ID="Label2" runat="server" Text=""></asp:Label><br />
            Http Post:<asp:Label ID="Label3" runat="server" Text=""></asp:Label><br />
        </div>
    </form>
</body>
</html>

Now have a look the below code of page2 access the pass value.

Way1 To access:
  if (Request.QueryString["value"] != null)
            {
                Label1.Text = Request.QueryString["value"].ToString();
            }

Now press F5 to check the output.

 Way2 To Access:
  if (Session["value"] != null)
            {
                Label2.Text = Session["value"].ToString();
            }

Now press F5 to access the value.

 Way3 To access:
if (Request.Form["txtValue"] != null)
            {
                Label3.Text = Request.Form["txtValue"].ToString();
            }

Now press F5 to check the output.


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