Retrieve data from Barcode Scanner and display in TextBox

I have a barcode slider which scan student ID CARD. When students scan their Student ID, the barcode reader generate the following: BARCODE_NUM,LASTNAME, FIRSTNAME.
Below is a dummy example when students scan their Student_ID into barcode reader. I get the following data from the barcode reader.
" %C9887688767876^Smith/John^5656656556565?;C9887688767876=3434354450000? "
When the user scan their Student ID into TextBox1, i want to only display BARCODE_NUM which is C9887688767876 from the example. Also When the user scan their Student ID into TextBox2 , i want to only display LASTNAME which is Smith from the example. When the user scan their Student ID into TextBox3, i want to only display FIRSTNA ...