area.aspx.cs

一个较小的采购系统,一些比较实际的代码,可以用来参考

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

public partial class area : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
       this.lblinfo.Text = Convert.ToString(this.txtinfo.Text.Length);
       try
           {
           SqlConnection conn = new SqlConnection();
           conn.ConnectionString = ConfigurationManager.AppSettings["ConnectionString"];
           conn.Open();
           SqlCommand cmd = new SqlCommand("select area_FZR,area_info,area_time from area where area_name = '" + this.ddltarea.SelectedItem.Text + "'", conn);
           SqlDataReader dr2 = cmd.ExecuteReader();
           dr2.Read();
           this.lblFZR.Text = dr2["area_FZR"].ToString();
           this.lbltime.Text = dr2["area_time"].ToString();
           this.txt.Text = dr2["area_info"].ToString();    
           conn.Close();
           }
           catch (Exception ex)
           {
               this.lbltime.Text = "区域不存在";
               this.txt.Text = "";
               this.lblFZR.Text = "";
           }
         
     
    }
    protected void txtinfo_TextChanged(object sender, EventArgs e)
    {
       
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        this.AjaxPanel1.Visible = true;
        this.AjaxPanel2.Visible = true;
        this.ddltarea.Items.Clear();
        addarea adddr = new addarea();
        SqlDataReader dr = adddr.bindarea();
        while (dr.Read())
        {
            this.ddltarea.Items.Add(dr.GetValue(0).ToString().Trim());
        }
    }
    protected void btnenter_Click(object sender, EventArgs e)
    {
        this.AjaxPanel2.Visible = false;
        this.AjaxPanel1.Visible = false;
        if (this.txtname.Text != "" && this.txtfzr.Text != "" && this.txtinfo.Text != "")
        {
            addarea addarea = new addarea();//引用addarea类，进行添加区域处理
            addarea.add(this.txtname.Text, txtfzr.Text, txtinfo.Text);
            this.txtfzr.Text = "";
            this.txtinfo.Text = "";
            this.txtname.Text = "";
         }
        else
        {
            Response.Write("<script>alert('添加失败！未填写完整')</script>");
        }
    }
    protected void ddltarea_SelectedIndexChanged(object sender, EventArgs e)
    {
        
    }

    protected void btndelete_Click(object sender, EventArgs e)
    {
        addarea delete = new addarea();//调用addarea类中的deletearea方法,删除选项
        delete.deletearea(this.ddltarea.SelectedItem.Text);
    }
}