C# - How To Add Rows And Columns In DataGridView

dataGridView1.ColumnCount = 3;

dataGridView1.Columns[0].Name = "Name";
dataGridView1.Columns[1].Name = "Age";
dataGridView1.Columns[2].Name = "City";

dataGridView1.Rows.Add("kathir", "25", "salem");
dataGridView1.Rows.Add("vino", "24", "attur");
dataGridView1.Rows.Add("maruthi", "26", "dharmapuri");
dataGridView1.Rows.Add("arun", "27", "chennai");