页面中传值到另一个页面上的控件).txt

学习积累的代码段

    private void modifycount()//从前面选择数据源进行更改的函数
{
    SqlConnection con = db.creatcon();
        con.Open();
       
        SqlCommand cmd = new SqlCommand("select *   from contract where tid=@tid", con);
        cmd.Parameters.Add("@tid", SqlDbType.VarChar);
        cmd.Parameters["@tid"].Value = Request.QueryString["Tid"].ToString();    //传过来的TID用于查找对应相
        SqlDataReader sdr = cmd.ExecuteReader();
        if (sdr.Read())//若存在对应相
        {
            this.Label1.Text = sdr["Tid"].ToString();
            this.Label2.Text = sdr["tcid"].ToString();
          // this.DropDownList1.Items.FindByValue(sdr["tpid"].ToString()).Selected = true;
            this.txtbegintime.Text = sdr["tbegintime"].ToString();
            this.txtendtime.Text = sdr["tendtime"].ToString();
            this.txttotalmoney.Text = sdr["ttotamoney"].ToString();
            this.txtgetmoney.Text = sdr["treadymoney"].ToString();
            this.DropDownList2.Items.FindByValue(sdr["tstate"].ToString()).Selected = true;
            this.txttcount.Text = sdr["tcontent"].ToString();

            con.Close();

        }
        else
        {
            Response.Write("<script language='javascript'>alert('对不起没有该合同信息')</script>");
        
        }