[RESOLVED] " InvalidArgument=Value of '0' is not valid for 'index'" When Selecting 2nd Item

When I select one ListViewItem, the data populates correctly. But after selecting the second, it throws this exception. This exception would normally be thrown if I tried to set the selected item's properties, without have an item selected. But I check this in code. So I can't figure out what's going on.

Code:

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private void lvwAttributes_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (this.lvwUserAttributesMapping.SelectedItems.Count > 0)
            {
                this.lvwUserAttributesMapping.SelectedItems[0].SubItems[1].Text = this.lvwAttributes.SelectedItems[0].Text;
                this.lvwUserAttributesMapping.SelectedItems[0].SubItems[2].Text = this.lvwAttributes.SelectedItems[0].SubItems[1].Text;
            }
        }

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EIDT: I fixed it by checking if the second list view had a selected item.

Is the item still selected on the line with SubItems[2]