Add values just to one column in DataGridView C#

Question

I have a DataGridView with 6 columns; I want the first column to display the days of the week. And the second column should display a schedule per day. But I want them to display in vertical order, not in horizontal way. But I can't figure out how to do it.

I have it like this:

And I want it like this:

Answer 1

according to your second picture:

dataGridView1.Rows.Add(9);

// for days column (1st column)
dataGridView1[0,0].Value = "Monday";
dataGridView1[0,3].Value = "Tuesday";
dataGridView1[0,6].Value = "Wednesday";

// for hours column (3rd column)
dataGridView1[2,0].Value = "7:00 - 8:00";
dataGridView1[2,1].Value = "8:00 - 9:00";
dataGridView1[2,3].Value = "7:00 - 7:50";
dataGridView1[2,4].Value = "7:50 - 8:20";

Basically

dataGridView[Column index, Row index].Value is the cell value at those coordinates