train/Add.aspx.cs

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 using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Text;
using System.Data.SqlClient;

public partial class train_Add : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
                DataSet dstno = SqlHelper.ExecuteforDataSet("select tno,tname from teachers");
            ddltno.DataSource = dstno;
            ddltno.DataTextField = "tname";
            ddltno.DataValueField = "tno";
            ddltno.DataBind();

        DataSet dstid = SqlHelper.ExecuteforDataSet("select tid,tname from traintype");
            ddltid.DataSource = dstid;
            ddltid.DataTextField = "tname";
            ddltid.DataValueField = "tid";
            ddltid.DataBind();


        }
    }

    /// <summary>
    /// 添加
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnSave_Click(object sender, EventArgs e)
    {    
        //设置Sql
         StringBuilder strSql = new StringBuilder();
         strSql.Append(@"insert into Train ( tno,tid,memo,indate ) ");
        strSql.Append(@" values (@tno,@tid,@memo,@indate)");

        //设置参数
        SqlParameter[] parameters = new SqlParameter[] {
            new SqlParameter("@tno", SqlDbType.VarChar,50),
            new SqlParameter("@tid", SqlDbType.Int,4),
            new SqlParameter("@memo", SqlDbType.VarChar,500),
            new SqlParameter("@indate", SqlDbType.DateTime,8)        };

        parameters[0].Value =ddltno.SelectedValue;
        parameters[1].Value =int.Parse (ddltid.SelectedValue);
        parameters[2].Value =txt_memo.Text;
        parameters[3].Value = DateTime.Now;

        //提交到数据库