Cross Page Posting not working

Question

I am trying to pass the value of a variable from one page to another using cross page post-back using this code:

on page1:

<asp:TextBox ID="changepwd" runat="server"></asp:TextBox>

<asp:Button ID="ChangePassword" runat="server" Text="Change Password" 
 PostBackUrl="~/Page2.aspx" />

I have assigned its value at runtime from the database in the cs file as: changepwd.Text = dataSet.Tables[0].Rows[0]["empPassword"].ToString();

On page 2: In page load event:

protected void Page_Load(object sender, EventArgs e)
    {
        if (PreviousPage != null && PreviousPage.IsCrossPagePostBack)
        {
            TextBox txt = (TextBox)PreviousPage.FindControl("changepwd");
            TextBox1.Text = txt.Text;
        }
    }

but I don't get the value from the previous page. i am getting the value as null . On page1 I am getting the value correctly from the database but it is not being passed onto page 2. Can you please tell me why?

Answer 1

Hope its helping u:

Page 1:

<asp:TextBox ID="changepwd" runat="server"></asp:TextBox>

<asp:Button ID="btnChangePassword" runat="server" Text="Change Password" 
 PostBackUrl="~/Page2.aspx" />

Page 1 Behind Code:

public TextBox ChangePassword
{
    get
    {
        return changepwd;
    }
}

Page 2: define this at the page header:

<%@ PreviousPageType VirtualPath="~/Page1.aspx" %>

Page 2 Behind Code:

protected void Page_Load(object sender, EventArgs e)
{
    if (Page.PreviousPage != null && PreviousPage.IsCrossPagePostBack == true)
    {
        TextBox1.Text = PreviousPage.ChangePassword.Text;
    }
}