try this:-
Take data-table and add the row in it. Then bond that table as datasourse.
If you want to append to last row then add previous rows in data table then add new row.
private void button1_Click(object sender, EventArgs e)
{
DataTable table = new DataTable();
table.Rows.Add(txtName.Text.trim(),txtCredit.Text.trim());
crsView.datasource=table;
crsView.DataBind();
}