How to set checked item in checkedlistbox with string seprated comma - c# : I have problem to select item from string separated comma and check item in checkedlistbox

**How can I select item from string separated comma and then check in checkedlistbox?**

[preview my program][1]

**download My project from this file**
[download][2]
  [1]: https://i.stack.imgur.com/qnTNR.jpg
  [2]: https://www.dropbox.com/s/ygzr7axlhotg89n/checkItems.zip?dl=0


**How can check in checkedlistbox with textbox and seprated comma**