Adding item to listbox that has tag

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Can some please help me?

I want to add items to a listbox during runtime (i know how to do this). But i want to add tag(numerical tag) to each items that i add. Is that possible (without using data binding)? So when the user click the item in the listbox i can read the numberical tag. I know i can read string of item user selected but i think tag would be better.

i am using vb.net windows application

Posted 11-Dec-13 10:15am

Member 8525993

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Sergey Alexandrovich Kryukov 11-Dec-13 16:17pm

Yes.
—SA

Member 8525993 11-Dec-13 16:23pm

Could you please give me a example ? if i add two item how would i determine tag after users selected that item.

or refer me to site that has good exams?

ZurdoDev 11-Dec-13 16:25pm

Just from memory, you need to create a ListBoxItem first and set Value and Text. Then add that item to the ListBox. You can't do it directly using ListBox.Items.Add()

Member 8525993 11-Dec-13 16:58pm

Could you please tell me how exactly do you do that?

I know you can do that with listview but i am not sure how to do that with listbox.

Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
' ListBox()

ListView1.Columns.Add("MyHeader", ListView1.Width)
ListView1.View = View.Details
Dim lv As New ListViewItem
lv.Text = "Fourty Five"
lv.Tag = 45
ListView1.Items.Add(lv)

Dim lv2 As New ListViewItem
lv2.Text = "Fourty six"
lv2.Tag = 46
ListView1.Items.Add(lv2)

End Sub
Private Sub ListView1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListView1.SelectedIndexChanged
MessageBox.Show(ListView1.FocusedItem.Text & "=" & ListView1.FocusedItem.Tag.ToString)
End Sub

ZurdoDev 11-Dec-13 17:03pm

Again, this is from memory but create a new instance of ListBoxItem

ListBoxItem temp = new ListBoxItem();
temp.Value="tag";
temp.Text="text";
ListBox.Items.Add(temp);

Member 8525993 11-Dec-13 17:30pm

Thanks. but i do not think there is a listboxitem() or something similar to that.

ZurdoDev 11-Dec-13 17:44pm

http://msdn.microsoft.com/en-us/library/system.windows.controls.listboxitem(v=vs.110).aspx

Member 8525993 12-Dec-13 9:25am

Is this for windows form application or wpf application ?

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CPallini · Answer 1 · 2013-12-11T10:27:00

Solution 1

Instead of 'adding a tag on each item' you might fill the listbox with objects containig the tag too (since listbox items are objects).
For instance, suppose your original listbox contains strings, then you could create a Class, say MyData, having two properties: the string and the tag. Then you might fill the listbox with instances (objects) of MyData Class. Hence every item would contain both the original string and the numeric tag.

Posted 11-Dec-13 10:27am

CPallini

Comments

Idle_Force 12-Dec-13 0:01am

You have to Override the ToString() function so the ListBox knows what to display.

CPallini 12-Dec-13 3:31am

Yes, you are rigth.

CPallini 12-Dec-13 10:54am

You are welcome.