remove selected items in listbox control RSS

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  modig

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  remove selected items in listbox control

  May 02, 2008 06:00 AM|LINK

  Hi

  I have a listbox that I can select multiple items from, when I do that I want to remove selected items, but I can't quite get it to work. Can someone please post a example code?

  • Moved by jimmy q on May 02, 2008 06:06 AM
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  yeotumitsu@s...

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  Re: remove selected items in listbox control

  May 02, 2008 06:10 AM|LINK

   

  Sub ListBoxRemSel(lst As ListBox)

      Dim a as Integer
  
       Do Until lst.SelCount = 0
  
           If lst.Selected(a) Then lst.RemoveItem 
   a: a = a - 1
  
           a = a + 1
  
       Loop
  
   End Sub

  Hope it helps.
  
  -Manas
  
  =======================================
  If this post is useful to you, please mark it as answer.
  • Edited by yeotumitsu@sify.com on May 02, 2008 06:21 AM
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  sivakl_2001

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  Re: remove selected items in listbox control

  May 02, 2008 06:18 AM|LINK

  hi modig if u want to delete selected items on listbox try the following codes

  while (listBox1.SelectedItems.Count != 0)

  {

  listBox1.Items.Remove(listBox1.SelectedItems[0]);

  }

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  chandana

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  Re: remove selected items in listbox control

  May 02, 2008 06:34 AM|LINK

  when you suppose to remove the item can u mention it clearly your requirment? 

  try with this code but the way it application is differ with your answer of above question

   

  for (int i = 0; i < ListBox1.Items.Count; i++)

  {

  if (ListBox1.Items[i].Selected)

  {

  ListBox1.Items.RemoveAt(i);

  i = i - 1;

  }

  }

  Chandana
  • Edited by chandana on May 02, 2008 07:00 AM
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  modig

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  475 Points

  420 Posts

  Re: remove selected items in listbox control

  May 02, 2008 07:20 AM|LINK

  Hi

   

  Thanks for the code but I'm sorry to say none of them work....

  1. Selcount is not a member of Web.UI.WebControls.Lisbox

  2. SelectedItems is not a member of Web.UI.WebControls.Lisbox

  3. When I run the third example from chandana, I get a index out of range error.

   

  Regards

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  chandana

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  Re: remove selected items in listbox control

  May 02, 2008 07:48 AM|LINK

  can u show me how to insert the item to list box. because i test my code; it works.

  Chandana
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  sivakl_2001

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  Re: remove selected items in listbox control

  May 02, 2008 07:57 AM|LINK

  hi modig this simple code help u

  while (ListBox1.SelectedIndex != -1)

  {

  ListBox1.Items.RemoveAt(ListBox1.SelectedIndex);

  }

   

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  modig

  Member

  475 Points

  420 Posts

  Re: remove selected items in listbox control

  May 02, 2008 07:57 AM|LINK

  I have 2 textboxes on my page and when I click the button1 the text from thoose textboxes are inserted..

  Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click

  sLine4.Items.Add(New ListItem(sLine2.Text.ToString, (sLine2.Text.ToString))) 'textbox1

  sLine4.Items.Add(New ListItem(sLine3.Text.ToString, sLine3.Text.ToString)) 'textbox2

  sLine4.Items.Add(New ListItem("---", "---"))

  End Sub

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  chandana

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  Re: remove selected items in listbox control

  May 02, 2008 09:17 AM|LINK

  Since you use the vb insted of C# I think you got this problem because language has several implementation. above my code is woked properly in C#. Yes I test it with vb it get the error that u mentioned. so try this one

   

  Dim i As Integer

  While ListBox1.Items.Count > i

  If ListBox1.Items(i).Selected = True Then

  ListBox1.Items.RemoveAt(i)

  i = i - 1

  End If

  i = i + 1

  End While

  Chandana
  • Marked as answer by Ivan Xin - MSFT on May 05, 2008 03:27 AM
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  sivakl_2001

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  Re: remove selected items in listbox control

  May 02, 2008 09:55 AM|LINK

  wat abt ur previous question wat is ur new question i can't understand the question