AdvancedLogParser.PrimaryDisplay.mainList_KeyDown C# (CSharp) Method

        void mainList_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Control && e.KeyCode == Keys.C)
            {
                StringBuilder copyBuffer = new StringBuilder();
                copyBuffer.EnsureCapacity(1);
                foreach (ListViewItem item in mainList.SelectedItems)
                {
                    string line = String.Format("{0,40} {1,10}, {2,10}", item.SubItems[1].Text.ToString(), item.SubItems[2].Text.ToString(), item.SubItems[4].Text.ToString());
                    copyBuffer.EnsureCapacity(copyBuffer.Capacity + line.Length + 1);
                    copyBuffer.AppendLine(line);
                }
                if (copyBuffer.Capacity > 1)
                {
                    Clipboard.SetText(copyBuffer.ToString());
                }
            }
        }