C#中文解释

来源：百度知道 编辑：UC知道 时间：2024/05/30 22:47:25
protected void Linkadd_Click(object sender, EventArgs e)
{
Insertclass();
}
protected void GridView2_SelectedIndexChanged(object sender, EventArgs e)
{
string id = this.GridView2.SelectedDataKey["Classid"].ToString();

OleDbConnection con = db.con();
con.Open();
OleDbCommand cmd = new OleDbCommand("select * from JiaoyanshiClass where Classid=@Classid", con);

cmd.Parameters.Add("@Classid", SqlDbType.VarChar);
cmd.Parameters["@Classid"].Value = id;
OleDbDataReader sdr = cmd.ExecuteReader();
if (sdr.Read())
{
this.txtjieci.Text = sdr["Ctime"].ToString();
this.txtjieshu.Text = sdr["CweekEndTime"].ToString();
this.txtlaoshi.Text = sdr["Cteacher"].ToString();
this.txtname

protected void Linkadd_Click(object sender, EventArgs e)
{
Insertclass(); //这是窗体加载事件里面的一个方法,调用下面的方法
}
protected void GridView2_SelectedIndexChanged(object sender, EventArgs e)
{
string id = this.GridView2.SelectedDataKey["Classid"].ToString();
//把GridView2网格里面Key为Classid赋给id
OleDbConnection con = db.con(); //创建连接对象
con.Open(); //打开连接
OleDbCommand cmd = new OleDbCommand("select * from JiaoyanshiClass where Classid=@Classid", con);
//构造查询语句,
cmd.Parameters.Add("@Classid", SqlDbType.VarChar); //加参数
cmd.Parameters["@Classid"].Value = id; //赋值
OleDbDataReader sdr = cmd.ExecuteReader(); //执行
if (sdr.Read()) //判断执行是否成功
{ //如果执行成功,就给文本框赋值
// 以下都是赋值
this.txtjieci.Text = sdr["Ctime"].ToString();
this.txtjieshu.Text = sdr["CweekEndTime"].ToString();
this.txtlaoshi.Text = sdr["Cteacher"].ToString();
this.txtnam