admin/feiyongshezhi.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;

public partial class admin_feiyongshezhi : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string sql;
            sql = "select * from feiyong where leixing='" + this.DropDownList1.Text + "'";
            DataSet result = new DataSet();
            sqlConn conn = new sqlConn();
            result = conn.hsggetdata(sql);
            if (result != null && result.Tables[0].Rows.Count > 0)
            {
                this.feiyong.Text = result.Tables[0].Rows[0]["feiyong"].ToString();
            }
            else 
            {
                this.feiyong.Text = "";
            }
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        sqlConn conn = new sqlConn();
        string feiyong = this.feiyong.Text;
        try
        {
            int.Parse(feiyong);
        }
        catch (Exception) 
        {
            Response.Write("<script>javascript:alert('租赁费用只能是整数');</script>");
            return;
        }
        string strsql = "delete from feiyong where leixing='" + this.DropDownList1.Text + "' Insert into feiyong(leixing,feiyong)values('" + this.DropDownList1.Text + "'," + feiyong + ")";
        int result;
        result = conn.hsgexucute(strsql);
        if (result == 1)
        {
            Response.Write("<script language=javascript>alert('保存成功！');location='feiyongshezhi.aspx'</script>");
        }
        else
        {
            Response.Write("<script>javascript:alert('系统错误，请检查数据库的连接');</script>");
        }
    }
    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        string sql;
        sql = "select * from feiyong where leixing='" + this.DropDownList1.Text + "'";
        DataSet result = new DataSet();
        sqlConn conn = new sqlConn();