yaopin/yaopinmod.aspx.cs

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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
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.Xml.Linq;
using dao;
public partial class yaopin_yaopinmod : System.Web.UI.Page
{
    string id = "";
    protected void Page_Load(object sender, EventArgs e)
    {
        id = Request.QueryString["id"].ToString();
        if (!IsPostBack)
        {

            string sql = "select * from yaopin where ypid='" + id + "'";//根据ID 查询表信息
            DataTable dt = DBHelper.GetDataSet(sql);
            if (dt.Rows.Count > 0)
            {
               this.yp.Text =dt.Rows[0]["yp"].ToString();
this.zzjb.Text =dt.Rows[0]["zzjb"].ToString();
this.cj.Text =dt.Rows[0]["cj"].ToString();


     
            }
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
      string yp=this.yp.Text;//药品
string zzjb=this.zzjb.Text;//主治疾病
string cj=this.cj.Text;//厂家

		if(yp.Length==0){
MessageBox.Show(this.Page,"药品不能为空");
return ;
}

if(zzjb.Length==0){
MessageBox.Show(this.Page,"主治疾病不能为空");
return ;
}

if(cj.Length==0){
MessageBox.Show(this.Page,"厂家不能为空");
return ;
}


     
        string sql = "update yaopin set  yp='"+yp+"',zzjb='"+zzjb+"',cj='"+cj+"' where ypid ='"+id+"'";
        int row = 0;