insert row in gridview in c#

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C#

hi if anyone help me
i want to insert data to gridview in c#
i have worked class workersmgr
public static bool AddWorkers(string name, string dept_name,int salary, int sort)
{
bool b;
string strconn = AlShehabi.Properties.Settings.Default.SalariesConnectionString;
OleDbConnection conn = new OleDbConnection(strconn);

if (conn.State == ConnectionState.Closed)
{
conn.Open();
}

OleDbCommand cmd = new OleDbCommand("INSERT INTO workers(Full_Name,Department_Name,Salary,sort) VALUES (@name, @dept_name,@salary,@sort) ;", conn);
cmd.Parameters.Add(new OleDbParameter("@name", name));
cmd.Parameters.Add(new OleDbParameter("@dept_name", dept_name));
cmd.Parameters.Add(new OleDbParameter("@salary", salary));
cmd.Parameters.Add(new OleDbParameter("@sort", sort));

int i = cmd.ExecuteNonQuery();

if (i <= 0)
b = false;
else
b = true;
conn.Close();
return b;


and in button click

private void button2_Click(object sender, EventArgs e)
       {

           if (WorkersMgr.AddWorkers(textBox1.Text.Trim(),
               textBox2.Text,
               textBox3.Text,
               textBox4.Text))
           {
           }
           else
           {

           }
       }

how to put new row in datagridview
i want to help in complete code