Pass A Value From A TextBox To A Database (in Datagrid View)?

I am new to VB.net and attempting to write a small program as a learning exercise. I am writing a simple clock in/clock out time type of program where on Form 1 a button is clicked to clock in, then a button is pressed to clock out. When the clock in button is pressed the date and time captured and shown in a label 1. The clock out button places the date and time in a label 2. Label 3 shows the elapsed time between clocking in and out. I also have a label 4 which keeps on adding elapsed times (user may clock in and out several times) to show total time worked. All of this works fine.

I have made a dataset and datagrid on Form 2 to store all of the clock ins and clock outs. I have a history button on form 1 which takes the user to form 2 where the history can be viewed in the datagrid. I cannot figure out how to send data to the data grid from form 1. I thought the simplest way would be to place the value of label 1 in the first column of the datagrid, the value of label 2 in the 2nd column and the value of label 3 in the third column. Then when the process is repeated the values will be entered into row 2 of the datagrid and so on.