Question

I am working a fairly basic web based KPI system and am struggling to get my head round this problem.

I have a top level page which has Gridview containing various items we are tracking and their current status. There is also a Hyperlink field that provides links to external pages / data. I need to open these links within a frame in the current site to maintain the look and feel of it.

If I hard code the src value for the iFrame it works fine but what I need to do is pass the URL contained in the LeafURL field into the KPIFrame.Attributes(“SRC”) = “Need something here”

so the question is how do I call the URL details from the previous page and inject it into the iFrame src field on the new page.

This is the code on my main page. Somehow I need the next page to pick up the linktext(LeafURL) value from the Gridview on this page.

 Protected Sub GridView1_RowCreated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowCreated

    If e.Row.RowType = DataControlRowType.DataRow Then

        Dim linknew As HyperLink
        Dim linktext as String

        linktext = e.Row.DataItem("LeafURL")
        linknew = e.Row.FindControl("Hyperlink1")

                  If e.Row.DataItem("Status") = "0" Or "1" Then
            linknew.NavigateUrl = ("~/leaf.aspx")

        End If
    End If
End Sub

Any guidance would be greatly appreciated.

Answer 1

All sorted now. The solution lay in correctly constructing the querystring on the 1st page so that is could be referenced on the 2nd page. As shown below:

Code on 1st Page:

If e.Row.RowType = DataControlRowType.DataRow Then
    Dim linktext As String = e.Row.DataItem("URL")
    Dim linknew As HyperLink = e.Row.FindControl("HyperLink1")

    linknew.Text = linktext

    linknew.NavigateUrl = "~/Leaf.aspx?URL=" + e.Row.DataItem("URL")

Code on 2nd Page:

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    KPIframe.Attributes("SRC") = Request.QueryString("URL")

    Label1.Text = Request.QueryString("URL")

End Sub

Turned out to be much simpler than it first appeared to solve this problem.

Now have system working where the URL value in the GridView on page 1 is passed to page 2 and used to determine the src value for the iframe on that page.