This is my first post - I hope I am posting in the right place.
I have a form with a datagrid and I would like to be able to change a portion of the DataNavigateUrlFormatString depending on whether or not the edit column in the subform will be visible.

Here is my code:

<asp:HyperLinkColumn
HeaderText="Details"
Text="View Details"
DataNavigateUrlField="Req_ID" Target="_blank" DataNavigateUrlFormatString="mgrid_details.aspx?id ={0}&cat=0" />

Specifically, I want to change "cat=0" to "cat=5" depending on whether the record will be editable or not.
I think it may be something to do with ItemDataBound but I am not sure
Is there a way to do this?

Hey,

Yes, that probably is right; I haven't done this, but in the e.Item for the row, get the cell, then it probably creates a link control that you access through e.Item.Cells(index).Controls(0). You convert it to the appropriate type and parse the NavigateUrl property.

Brian

The problem is that the grid is not in edit when the link is clicked. So there is no template column/e.item to reference.The first page displays a list of records with the Edit either visible or not visible depending on whether or not the records are active (can be edited) or closed (can not be edited). When the user clicks on "View Details" another page launches displaying only the data for the selected record. My hope was to be able to change the url for "View Details" so it would load with cat=0 or cat=5.
I may have to resort to using ViewState to get the page to do what I want it to do. I am just not sure how to do this.

SOLVED!Found the solution in Scott Mitchell's "ASP.NET Data Controls". Here is what worked:
If e.Item.ItemType <> ListItemType.Header And _
      e.Item.ItemType <> ListItemType.Footer Then
      Dim hl As HyperLink = e.Item.Cells(0).Controls(0)
      Dim navURL As String
      hl.Text = "View Details"
      Select Case intCat
        Case 10, 20
          navURL = "mgrid_details.aspx?cat=0&id=" & _
            Server.UrlEncode(DataBinder.Eval(e.Item.DataItem, "req_id"))
        Case 35, 45, 55
          navURL = "mgrid_details.aspx?cat=5&id=" & _
            Server.UrlEncode(DataBinder.Eval(e.Item.DataItem, "req_id"))
      End Select
      hl.Target = "_blank"
      hl.NavigateUrl = navURL