How can I only update particular row in datagridview?

Question

DataTable dt;

void fillQueryOption()

{

dt = Query.getData("Select * from askoptions order by id");

dgvAskOption.AutoGenerateColumns = false;

dgvAskOption.DataSource = dt;

clnOptID.DataPropertyName = "ID";

clnCode.DataPropertyName = "Code";

clnTitle.DataPropertyName = "title";

clnOptionName.DataPropertyName = "optionname";

}

private void btnOptSave_Click(object sender, EventArgs e)

{

askoptions_add_edit(txtOptID.Text, txtCode.Text, txtTitle.Text, cmbOptionName.Text);

MessageBox.Show("Record Save Successfully...!!!");

fillQueryOption();

}

when I save data fillQueryOption function update whole datagridview in c# it takes time and load on program.How can I only update particular row in datagridview.