Deleting a given item in listview and in combobox

[Scalp994]

Hey there,
I have a listview with 2 columns that puts the text taken from a textbox in the first column and the value of a radiobutton in the second one. Upon pressing the "add" button the text and the value appear in the listview, and the text is also added to a combobox.

ListViewItem lvi3 = new ListViewItem(textBox3.Text);
//now adding the radiobutton value
lvi3.SubItems.Add(textfromradiobutton);
//refreshing the list
listView3.Items.Add(lvi3);
//adding the text from textbox to the combobox
comboBox1.Items.Add(textBox3.Text);

I've also a contextmenustrip which is attached to the table, and upon pressing the "delete row" button in it, it deletes a whole row from the listview.

        private void usuńRekordToolStripMenuItem2_Click(object sender, EventArgs e)
        {
            if (listView3.SelectedItems.Count != 0)
            {
                foreach (ListViewItem lvi3 in listView3.SelectedItems)
                    lvi3.Remove();
            }
        }

My problem is that even if I remove a given text from the listview, it stays in the combobox. How can I implement such a feature that when a given row is deleted from the listview, the same values disappear from the combobox?

[Samuel Jones]

I have come across this issue many times before. The way I have solved it is that I have a separate list that is full of index numbers.

It ends up being something like this

List
Index    Contents
0        4
1        2
2        3
3        1
4        0
5
...
 

The index column is in the same order as the listbox so that the list's index = ListBox.SelectedIndex and the contents at that index is the corresponding SelectedIndex of the combobox.

The code is then implemented as follows

-Delete Button's OnClick Event-
{
    int ind = ListBox.SelectedIndex;
    ListBox.Remove(ind);
    ComboBox.Remove(list(ind));
    (for loop that adjusts index numbers higher than ind, i.e. if ind=2, any index higher than that needs to be subtracted 1.)
}

It is a nasty way of doing it, but it works.

[Scalp994]

Thanks for the response, I've accomplished the same effect in another way, though.

if (listView3.SelectedItems.Count != 0)
            {
                foreach (ListViewItem lvi3 in listView3.SelectedItems)
                {  
                    string selection = lvi3.Text;
 
                    comboBox1.Items.Remove(selection);
                    lvi3.Remove();
 
                }
 
 
 
 
            }

[Samuel Jones]

cheers for that... that will be very useful.