ck/edit_ck.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
namespace 仓库管理系统.ck
{
    public partial class edit_ck : System.Web.UI.Page
    {
        SQLHelper db = new SQLHelper();
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                bind();
                this.txt_rq.Attributes["onClick"] = "WdatePicker()";
            }
        }
        //
        public void bind()
        {
            string sql = "select * from product order by pro_id desc";//构造选出行业所有字段的SQL语句
            DataTable dt = db.ExecuteQuery(sql, CommandType.Text);
            this.ddl_product.DataSource = dt;
            this.ddl_product.DataTextField = "product";
            this.ddl_product.DataValueField = "pro_id";
            this.ddl_product.DataBind();
            //
            int id = int.Parse(Request.QueryString["id"].ToString());
            string cx = "select * from ck where ck_id=" + id;
            DataTable d = db.ExecuteQuery(cx, CommandType.Text);
            this.txt_dh.Text = d.Rows[0]["dh"].ToString();
            this.txt_rq.Text = d.Rows[0]["rq"].ToString();
            this.txt_sl.Text = d.Rows[0]["sl"].ToString();
            this.ddl_product.Items.FindByValue(d.Rows[0]["pro_id"].ToString()).Selected = true;
            //
        }
        //
        protected void Button1_Click(object sender, EventArgs e)
        {
            int id = int.Parse(Request.QueryString["id"].ToString());
            int depot_id = int.Parse(Session["depot_id"].ToString());
            DateTime rq = Convert.ToDateTime(this.txt_rq.Text.ToString());
            string dh = this.txt_dh.Text.ToString();
            int sl = int.Parse(this.txt_sl.Text.ToString());
            int pro_id = int.Parse(this.ddl_product.SelectedValue.ToString());
            //计算本仓库该商品的库存量
            pub p = new pub();
            int total = p.pro_total(pro_id, depot_id);
            //
            if (total >=sl)//如果库存总量大于出库数量
            {
            string sql = "update ck set rq='" + rq + "',dh='" + dh + "',pro_id='" + pro_id + "',sl='" + sl + "' where ck_id=" + id;
            int s = db.ExecuteNonQuery(sql, CommandType.Text);
            Response.Write("<script>alert('成功！');location='cklist.aspx'</script>");
            }
            else