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how to remove the datas automatically in listbox?

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  1 year ago

  by sathyan_8294

  sathyan_8294

  , India

  Joined 2 years ago
  hai all, i am using .net 2005.i do my project in vb.net windows application.i have 2 listbox named as connolistbox and lotnolistbox. i displayed the lotnos datas automatically in lotnolistbox based on i selected conno in connolistbox. i want to do like, if i removed all lotnos from lotnolistbox means that selected conno from connolistbox must be automatically removed. for example, i click 'conno101' in connolistbox means the 4 datas are lotno1,lotno2,lotno3,lotno4 are automatically displayed in lotnolistbox. then i remove 4 datas are lotno1,lotno2,lotno3,lotno4. now lotnolistbox is clear.when lotnolistbox clear means the 'conno101' must be automatically removed from connolistbox. if lotnolistbox not clear means the 'conno101' must be there in connolistbox.
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  1 year ago

  by barma

  barma

  , India

  Joined 1 year ago

  Hello,

  You can make use of the SelectedIndexChanged() event of the lotnolistbox to implement the same. In the mentioned event,
  you can check if you have any items currently in the Lotnolistbox. In case the number of items is 0,then you can remove
  the selected Item from the connolistbox.

  For ex:

  Private Sub ListBox2_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox2.SelectedIndexChanged

   If Me.ListBox2.Items.Count = 0 Then

    Me.ListBox1.Items.Remove(Me.ListBox1.SelectedItem)

   End If

  End Sub

  In the above code snippet, ListBox2 represents the lotnolistbox and ListBox1 is your connolistbox. Try the above
  code with the required changes and I believe this should work for you.

  Regards,

  Allen
  

  Allen Smith
  ComponentOne LLC

  www.componentone.com

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