private void button1_Click(object sender, EventArgs e) { bool isname, isuser; localhost.Service1 ser = new localhost.Service1(); ser.Search(textBox1.Text, textBox3.Text, out isname, out isuser); BindingSource b = new BindingSource(); //dataGridView1.Rows[row].SetValues = textBox1.Text + " " + textBox3.Text + DateTime.Now.ToLongDateString(); b.DataSource = ser.SearchAll(); dataGridView1.DataSource = b; dataGridView1.Columns[0].Visible = false; dataGridView1.Columns[2].Visible = false; dataGridView1.Columns[3].Visible = false; dataGridView1.Columns[4].Visible = false; dataGridView1.Columns[5].Visible = false; dataGridView1.Columns[6].Visible = false; dataGridView1.Columns[10].Visible = false; dataGridView1.Columns[8].Visible = false; dataGridView1.Columns[9].Visible = false; // dataGridView1.Columns[0].Visible = false; //dataGridView1.Columns[0].Visible = false; }