private void Form1_Load(object sender, EventArgs e) { 教师联系方式 fom = new 教师联系方式(); fom.Show(); SqlConnection conn = new SqlConnection(strconnecting); string sql1 = string.Format("select * from 工学院 where id ='{0}'", tid); conn.Open(); SqlCommand comm1 = new SqlCommand(sql1, conn); SqlDataReader read = comm1.ExecuteReader(); if (read.Read()) { label7.Text = (string)read["name"]; conn.Close(); conn.Open(); string sql2 = string.Format("select name from course where tid = '{0}'", tid); SqlCommand comm2 = new SqlCommand(sql2, conn); SqlDataAdapter da1 = new SqlDataAdapter();//新建新的da以及ds表 DataSet ds1 = new DataSet("paike"); da1.SelectCommand = comm2; SqlCommandBuilder builder = new SqlCommandBuilder(da1); da1.Fill(ds1, "course"); cou1 = (string)ds1.Tables["course"].Rows[0][0]; cou2 = (string)ds1.Tables["course"].Rows[1][0]; comboBox3.Items.Add(cou1); comboBox3.Items.Add(cou2); } else { MessageBox.Show("读取失败", "重试", MessageBoxButtons.OK, MessageBoxIcon.Exclamation); } }
private void 本学院教师联系方式ToolStripMenuItem_Click(object sender, EventArgs e) { 教师联系方式 fom = new 教师联系方式(); fom.Show(); }