[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 609
  • Last Modified:

check if combo box has selection vb.net

i have 3 combo boxes on a form  in vb.net. the 3rd combo needs the selection from both of the previous. How do i check that both cb1 and 2 have items selected?
there is no order of selection the user can change 1 or 2 in either order as long as i can make cb3 respond
0
PeterBaileyUk
Asked:
PeterBaileyUk
  • 3
  • 2
1 Solution
 
PeterBaileyUkAuthor Commented:
I just wrote this
  If (String.IsNullOrEmpty(CBNote.SelectedItem)) And (String.IsNullOrEmpty(CBScaleType.SelectedItem)) Then
            Call GetCBData("usp_GetChords")
        End If

not sure if its correct way
0
 
PeterBaileyUkAuthor Commented:
apart from the blinding obvious that i need an else and need to move the call to the correct part
0
 
Fernando SotoCommented:
You can use the ComboBox.SelectedIndex property to know if a item has been selected in the ComboBox. It returns the zero base index of the selected item or if no item has been selected -1.
0
 
PeterBaileyUkAuthor Commented:
I did try and ceremoniously failed. thx again
0
 
Fernando SotoCommented:
Did you get it working?
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

  • 3
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now