client.aspx.cs

经典企业信息管理系统 SQL+C#开发功能实现

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Configuration;

namespace clientserver.main
{
	/// <summary>
	/// client 的摘要说明。
	/// </summary>
	public class client : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid Dgd_client;
		protected System.Web.UI.WebControls.Label Lbl_note;
		protected System.Web.UI.HtmlControls.HtmlForm Form1;
		protected System.Web.UI.WebControls.LinkButton Lbtn_add;
		SqlConnection cn;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(Session["branch"].ToString()=="0"|| Session["branch"].ToString()=="1"|| Session["branch"].ToString()=="3")
			{
			}
			else 
			{
				Response.Write ("您不是合法用户，请登入后再操作，<a href='../default.aspx'>返回登录</a>");
				Page.Response.End();
			}
			string strconn=ConfigurationSettings.AppSettings["ConnectionString"];
			cn=new SqlConnection(strconn);
			if(!IsPostBack)
				BindGrid();
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.Lbtn_add.Click += new System.EventHandler(this.Lbtn_add_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
		public void BindGrid()
		{
			string mysql="select client_id,client_name,client_charge,client_level,client_email,client_tell,client_address from client";
			SqlDataAdapter da=new SqlDataAdapter(mysql,cn);
			DataSet ds=new DataSet();
			da.Fill(ds);
			Dgd_client.DataSource=ds;
			Dgd_client.DataBind();
		}
		public void DataGrid_Page(object sender,DataGridPageChangedEventArgs e)
		{
			Dgd_client.CurrentPageIndex=e.NewPageIndex;
			BindGrid();
		}
		public void DataGrid_cancel(object sender,DataGridCommandEventArgs e)
		{
			
			Dgd_client.EditItemIndex=-1;
			BindGrid();
			
		}
		
		public void DataGrid_edit(object sender,DataGridCommandEventArgs e)
		{
			if(Session["branch"].ToString()=="0")
			{
			
				Dgd_client.EditItemIndex=(int)e.Item.ItemIndex;		
				BindGrid();
			}	
		}
		public void DataGrid_update(object sender,DataGridCommandEventArgs e)
		{
			SqlCommand cm=new SqlCommand("updateclient",cn);
			cm.CommandType=CommandType.StoredProcedure;			
			
			cm.Parameters.Add(new SqlParameter("@client_id",SqlDbType.Char,10));
			cm.Parameters.Add(new SqlParameter("@client_name",SqlDbType.Char,10));
			cm.Parameters.Add(new SqlParameter("@client_charge",SqlDbType.Char,10));
			cm.Parameters.Add(new SqlParameter("@client_level",SqlDbType.Int,4));
			cm.Parameters.Add(new SqlParameter("@client_email",SqlDbType.VarChar,20));				
			cm.Parameters.Add(new SqlParameter("@client_tell",SqlDbType.VarChar,20));
			cm.Parameters.Add(new SqlParameter("@client_address",SqlDbType.VarChar,50));

			string colvalue=((TextBox)e.Item.Cells[1].Controls[0]).Text;
			cm.Parameters["@client_name"].Value=colvalue;

			colvalue=((TextBox)e.Item.Cells[2].Controls[0]).Text;
			cm.Parameters["@client_charge"].Value=colvalue;

			colvalue=((TextBox)e.Item.Cells[3].Controls[0]).Text;
			cm.Parameters["@client_level"].Value=colvalue;

			colvalue=((TextBox)e.Item.Cells[4].Controls[0]).Text;
			cm.Parameters["@client_email"].Value=colvalue;	
		
			colvalue=((TextBox)e.Item.Cells[5].Controls[0]).Text;
			cm.Parameters["@client_tell"].Value=colvalue;

			colvalue=((TextBox)e.Item.Cells[6].Controls[0]).Text;
			cm.Parameters["@client_address"].Value=colvalue;

			cm.Parameters["@client_id"].Value=Dgd_client.DataKeys[(int)e.Item.ItemIndex];
							
			cm.Connection.Open();
			try
			{
				cm.ExecuteNonQuery();
				Lbl_note.Text="编辑成功";
				Dgd_client.EditItemIndex=-1;
			}
			catch
			{
				Lbl_note.Text="编辑失败";
				Lbl_note.Style["color"]="red";
			}
			cm.Connection.Close();		
			BindGrid();			
		}
		
		public void DataGrid_delete(object sender,DataGridCommandEventArgs e)
		{
		
				string strsql="delete from client where client_id=@clientid";
				SqlCommand cm=new SqlCommand(strsql,cn);
				cm.Parameters.Add(new SqlParameter("@clientid",SqlDbType.Char,10));
				cm.Parameters["@clientid"].Value=Dgd_client.DataKeys[(int)e.Item.ItemIndex];
				cm.Connection.Open();
				try
				{
					cm.ExecuteNonQuery();
					Lbl_note.Text="删除成功";
				}
				catch(SqlException)
				{
					Lbl_note.Text="删除失败";
					Lbl_note.Style["color"]="red";
				}
				cm.Connection.Close();			
				BindGrid();
			
		}

		private void Lbtn_add_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("addclient.aspx");
		}
	}
}