VB.NET - selectedvalue on listbox

Asked By Kim Boarder on 27-Oct-08 12:29 PM

I have a listbox triggered by selecteditemchanged..

when I use selectedvalue.tostring, I always get the next value on the list, rather than the value I selected. Any ideas? Thanks in advance.

e.g.  I select 02, the outcome is 03.

01

02

03

Kim

Solution

san san replied to Kim Boarder on 27-Oct-08 12:46 PM
 ListBox Event

The default event of ListBox is the SelectedIndexChanged which looks like this in code:

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
End Sub

Working with ListBoxes

Drag a TextBox and a ListBox control to the form and add some items to the ListBox with it's items property.

Referring to Items in the ListBox

Items in a ListBox are referred by index. When items are added to the ListBox they are assigned an index. The first item in the ListBox always has an index of 0 the next 1 and so on.

Code to display the index of an item

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
TextBox1.Text = ListBox1.SelectedIndex
'using the selected index property of the list box to select the index
End Sub

When you run the code and select an item from the ListBox, it's index is displayed in the textbox.

 Code to display the item selected from ListBox in a TextBox

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object,_
ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
TextBox1.Text = ListBox1.SelectedItem
'using the selected item property
End Sub

When you run the code and click an item in the ListBox that item will be displayed in the TextBox.


OR
You can try this o get the selected item in a list box

Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object,_
ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
TextBox1.Text = listBox1.Items[listBox1.SelectedIndex].ToString
End Sub

Hope it helps

Reply

Binny ch replied to Kim Boarder on 27-Oct-08 01:01 PM

Hi, Try this code to get the selected value from the listbox.

Here 'm Getting teh Seelcted values from the listbox into the Label

Label1.text=Listbox1.SelectedItem.Tostring();

This will surely fetch you the correct value.


got it working.. thank you

Kim Boarder replied to san san on 27-Oct-08 02:14 PM
end of post
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