teachers/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 teachers_Add : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
                DataSet dspid = SqlHelper.ExecuteforDataSet("select pid,pname from parts");
            ddlpid.DataSource = dspid;
            ddlpid.DataTextField = "pname";
            ddlpid.DataValueField = "pid";
            ddlpid.DataBind();


            txt_indate.Text = DateTime.Now.ToString("yyyy-MM-dd");

        }
    }

    /// <summary>
    /// 添加
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnSave_Click(object sender, EventArgs e)
    {   
        //验证是否已经存在
        if (SqlHelper.GetCount("select count(*) from teachers where tno='" + txt_tno.Text + "' ") > 0)
        {
            Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "<script>alert('该职工编号已存在，请重新输入！');</script>");
            return;
        }
 
        //设置Sql
         StringBuilder strSql = new StringBuilder();
         strSql.Append(@"insert into Teachers ( tno,tname,pid,sex,pic,age,tel,address,cardno,flag,indate,inmemo) ");
        strSql.Append(@" values (@tno,@tname,@pid,@sex,@pic,@age,@tel,@address,@cardno,@flag,@indate,@inmemo)");

        //设置参数
        SqlParameter[] parameters = new SqlParameter[] {
            new SqlParameter("@tno", SqlDbType.VarChar,50),
            new SqlParameter("@tname", SqlDbType.VarChar,50),
            new SqlParameter("@pid", SqlDbType.Int,4),
            new SqlParameter("@sex", SqlDbType.VarChar,50),
            new SqlParameter("@pic", SqlDbType.VarChar,50),
            new SqlParameter("@age", SqlDbType.VarChar,50),
            new SqlParameter("@tel", SqlDbType.VarChar,50),
            new SqlParameter("@address", SqlDbType.VarChar,50),