We use the concept of CrossPage Posting, when we collect the
data from one web page and this data is used on another webpage.
We use the PreviousPage
property of the Page object to
access the data from the first page.
We can access any of the controls of the previous page by
using the FindControl Method.
Here we take an example in which we take a Label( Label1 ) to show the previos page data(
txtfname) in it.
if
(PreviousPage == null)
{
Label1.Text="There are no data in the previous page";
}
else
{
Label1.Text = ((TextBox)PreviousPage.FindControl("txtfname")).Text;
}
Note:
The
Crosspage posting occurs where there are any data avaliable in the previous
page and if there is no data in the previous page we set it
if
(PreviousPage == null)
so there
are no cross page posting occurs in this case.