Question

Consider the following form:

I want textbox1 or textbox2 to be focused when i click on “1” or “2” in the listview.

I wrote the following code:

  private void listView1_ItemSelectionChanged(object sender, ListViewItemSelectionChangedEventArgs e)
    {
        if (e.IsSelected)
        {
            if (e.Item.Text == "1")
                textBox1.Focus();
            else
                textBox2.Focus();
        }
    }

But it doesn’t work. (Textbox gets focused for a moment, but after that the focus goes back to listview.) I want the focus to be on textbox when I select the relevant item in the listview.

Any suggestions?

Thank you for the help.

Answer 1

The focus is being reset to the ListView because of the order the events are being fired.

1. MouseDown – Selects the item in the list view.
2. ItemSelectionChanged – Calls listView1_ItemSelectionChanged.
3. MouseUp – If the cursor is still over listView1 this sets the focus to the list view.

Disabling the control will work, but it adds a ‘flicker’ when the item is clicked. Otherwise, you can track the selected item on MouseDown and MouseUp/MoustLeave and set focus appropriately.

private void listView1_ItemSelectionChanged(object sender, ListViewItemSelectionChangedEventArgs e)
{
    if (e.IsSelected)
    {
        if (e.Item.Text == "1")
            textBox1.Focus();
        else
            textBox2.Focus();
    }
    listView1.Enabled = false;
}

private void listView1_MouseUp(object sender, MouseEventArgs e)
{
    listView1.Enabled = true;

}

private void listView1_MouseLeave(object sender, EventArgs e)
{
    listView1.Enabled = true;
}

Side note – do you need to use a ListView? Did a quick test on my end and a ListBox behaves the way you want without any hacks.