When some one clicks on a item in the listview. How can I get the value of that.

here's my code

Code:
string fname = GetFileNameWithoutExtension(m_Playable.FullRowSelect);
            //I need to get the file name's Name. Not the ext.
            
            label3.Show();
            label3.Text = "Selected File Name : " + fname + ".bms";
            
            m_ListRealted.Items.Clear();

            string path = textBox2.Text;
            DirectoryInfo dr = new DirectoryInfo(@path);
            
            List<string> relatedfiles = new List<string>();

            foreach (FileInfo related in dr.GetFiles(fname + ".*"))
            {
                
                relatedfiles.Add(related.Name.ToString());

            }

        }