Everyone a great god, and I use Winfrom wrote a program at the beginning of the left is a ListBox, the middle is a TreeNode, function is the TreeNode by double-clicking on the inside of the command to give a ListBox to add text, finally carried out in accordance with the text content measurement;

ListBox opens the multi-line select (mainly in order to copy and paste multiple lines), the following is what I want to in ListBox realize but not a few of his own purpose:
1. Give a row in the ListBox words set in bold;
2. To select multiple rows in a ListBox, click on the blank area of the ListBox just uncheck the selected rows, as the chart 1;
3. Select the multi-line after click Copy, and then Paste where new options before the selected lines;