How to pass value to new window in ASP.NET on button click

Question

I am using ASP.NET to open a new window on clicking a button. Here in MainPage.aspx i will enter a value in TextBox and press the button. This value should be obtained and displayed in the new window that opens. Im opening the new window using ScriptManager.RegisterStartupScript. But im not sure how to pass the value and display it in new page. Im using the following code for this,

MainPage.aspx

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Main Page</title>
    <link rel='stylesheet' type='text/css' href='Styles/Main.css'/>
</head>
<body>
    <form id="form_main" runat="server">
        <asp:TextBox ID="txt_value" runat="server" />
        <asp:Button ID="btn_open" Text="Open" runat="server" OnClick="btn_open_Click" />
    </form>
</body>
</html>

MainPage.aspx.cs

protected void btn_open_Click(object sender, EventArgs e)
{
    string value = txt_value.Text;
    // Pass value to new page when opening it
    ScriptManager.RegisterStartupScript(this, typeof(string), "OPEN_WINDOW", "var Mleft = (screen.width/2)-(760/2);var Mtop = (screen.height/2)-(700/2);window.open( 'NewPage.aspx', null, 'height=700,width=760,status=yes,toolbar=no,scrollbars=yes,menubar=no,location=no,top=\'+Mtop+\', left=\'+Mleft+\'' );", true);
}

NewPage.aspx

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>New Page</title>
    <link rel='stylesheet' type='text/css' href='Styles/New.css'/>
</head>
<body>
    <form id="form_new" runat="server">
        <asp:Label ID="lbl_received" runat="server" Text="" />
    </form>
</body>
</html>

NewPage.aspx.cs

protected void Page_Load(object sender, EventArgs e)
{
    lbl_received.Text = "Value got from MainPage.aspx";
}

you can use cookies/session to pass values from one form to another. — JeetDaloneboy, Oct 07 '16 at 05:04
Many options you got: http://stackoverflow.com/questions/8241470/pass-a-value-into-next-page — Zein Makki, Oct 07 '16 at 05:07
Ok but which method i should use when using `ScriptManager.RegisterStartupScript` and how to combine that code with this? — Mano Prathibhan C, Oct 07 '16 at 05:13

How to pass value to new window in ASP.NET on button click

0 Answers0