Try this in the codebehind where that hyperlink redirects, e.g. PropertyDetails.aspx?id=63
In codebehind PageLoad
Int32 propertyIdFromQueryString = 0;
if( Int32.TryParse( Request.QueryString[ "id" ], out propertyIdFromQueryString ) )
{
}
else
{
}
All you simply use is the ASP.NET Request.QueryString["QueryStringName"] e.g. id in this case, to find out more here you are:
Passing variables between pages using QueryString[
^]
Happy coding,
Morgs