UserInsert ui = new UserInsert();
??????????? ui.ShowDialog();

//ui.DialogResult
??????????? if (ui.DialogResult == DialogResult.OK)
??????????? {
??????????????? SqlConnection conn = new SqlConnection("Data Source=.;Initial Catalog=Test;Integrated Security=True");
??????????????? conn.Open();
??????????????? SqlDataAdapter da = new SqlDataAdapter("select id,name from users", conn);
??????????????? DataTable dt = new DataTable();
??????????????? da.Fill(dt);
??????????????? conn.Close();
??????????????? this.dataGridView1.DataSource = dt;
??????????? }

?

?

?

?

SqlConnection conn = new SqlConnection("Data Source=.;Initial Catalog=Test;Integrated Security=True");
??????????? conn.Open();
??????????? SqlDataAdapter da = new SqlDataAdapter("insert into users(name,password)values('"+this.textBox1.Text+"','123456')", conn);
??????????? DataTable dt = new DataTable();
??????????? da.Fill(dt);
??????????? conn.Close();
??????????? this.DialogResult = DialogResult.OK;

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