Member Avatar for ajwei810192

Hi,

I wonder if anyone on this list has tried to mix numerical variable, such as 1, 2,3 within an xpath expression.

songList = document.SelectNodes("/music_songs/song[category='" & drop1.SelectedItem.Text & "'][item_number_first<=position()<=item_number_last]")

For some reason, item_number_first and item_number_last appear to have no value in the above code snippet, when they do have values they get printed as in the following:

mess.Text += "Items for page " & page_no & " is: " & item_number_first & " to " & item_number_last & "<br />"

Could anyone please give me some hints on what to modify here to make the numerical data be able to mix within my xpath? Thanks for your help.

  • 2 Contributors
  • 2 Replies
  • 114 Views
  • 2 Days Discussion Span
  • Latest Post Latest Post by ajwei810192
Member Avatar for Teme64

I think you have a tiny logical error. Shouldn't your code be

songList = document.SelectNodes("/music_songs/song[category='" & drop1.SelectedItem.Text & "'][" & item_number_first & "<=position()<=" & item_number_last & "]")

now if item_number_first were 1 and item_number_last were 10, the expression would evaluate to a string: ...SelectNodes("...[1<=position()<=10]") HTH

Member Avatar for ajwei810192

This is what I needed, thanks!

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.