Partial Class products
    Inherits System.Web.UI.Page

    Public qcategoryid As String = "0"
    Public qsubCatId As String = "0"
    Public qsearch As String = "0"

    Private Sub products_Load(sender As Object, e As EventArgs) Handles Me.Load
        If Request.QueryString("categoryid") IsNot Nothing Then
            qcategoryid = Request.QueryString("categoryid").ToString()
        End If
        If Request.QueryString("subCatId") IsNot Nothing Then
            qsubCatId = Request.QueryString("subCatId").ToString()
        End If
        If Request.QueryString("search") IsNot Nothing Then
            qsearch = Request.QueryString("search").ToString()
        End If
    End Sub

End Class