product.aspx.cs

用.net开发的一套管理系统,功能比较全,挺好用的啊!

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
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.Configuration;

namespace cms
{
	/// <summary>
	/// product 的摘要说明。
	/// </summary>
	public class product : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid Dgd_product;
		protected System.Web.UI.WebControls.Button Btn_exit;
		protected System.Web.UI.WebControls.TextBox Tbx_productid;
		protected System.Web.UI.WebControls.TextBox Tbx_productname;
		protected System.Web.UI.WebControls.TextBox Tbx_introduce;
		protected System.Web.UI.WebControls.Button Btn_add;
		protected System.Web.UI.WebControls.Label Lbl_note;
		protected System.Web.UI.WebControls.CustomValidator Cv_id;
		protected System.Web.UI.WebControls.Panel Pn_id;		
	    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
			string strconn= ConfigurationSettings.AppSettings["dsn"];
			cn=new SqlConnection(strconn);
			if(!IsPostBack)
				BindGrid();
			if(Session["User_power"].ToString()=="0")
				Pn_id.Visible=true;
			else
				Pn_id.Visible=false;
		}
		

		#region Web Form Designer generated code
		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.Cv_id.ServerValidate += new System.Web.UI.WebControls.ServerValidateEventHandler(this.Cv_id_ServerValidate);
			this.Btn_add.Click += new System.EventHandler(this.Btn_add_Click);
			this.Btn_exit.Click += new System.EventHandler(this.Btn_exit_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
		public void BindGrid()
		{
			SqlDataAdapter da=new SqlDataAdapter("select * from product",cn);
			DataSet ds=new DataSet();
			da.Fill(ds);
			Dgd_product.DataSource=ds;
			Dgd_product.DataBind();
		}
		public void DataGrid_page(object sender,DataGridPageChangedEventArgs e)
		{
			Dgd_product.CurrentPageIndex=e.NewPageIndex;
			BindGrid();
		}

		private void Btn_add_Click(object sender, System.EventArgs e)
		{
			SqlCommand cm=new SqlCommand("insert_product_1",cn);
			cm.CommandType=CommandType.StoredProcedure;
			
			cm.Parameters.Add(new SqlParameter("@Product_id",SqlDbType.Char,10));
			cm.Parameters.Add(new SqlParameter("@Product_name",SqlDbType.VarChar,50));
			cm.Parameters.Add(new SqlParameter("@Product_describe",SqlDbType.VarChar,50));			
			cm.Parameters["@Product_id"].Value=Tbx_productid.Text;
			cm.Parameters["@Product_name"].Value=Tbx_productname.Text;
			cm.Parameters["@Product_describe"].Value=Tbx_introduce.Text;
			cm.Connection.Open();
			try
			{
				cm.ExecuteNonQuery();
				Response.Redirect("product.aspx");
							
			}
			catch(SqlException)
			{
				Lbl_note.Text="添加失败";
				Lbl_note.Style["color"]="red";
			}
			cm.Connection.Close();
		
		}

		private void Cv_id_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{
			cn.Open();
			SqlCommand cm=new SqlCommand("select * from product where Product_id=@Product_id",cn);
			cm.Parameters.Add("@Product_id",SqlDbType.Char,10);
			cm.Parameters["@Product_id"].Value=Tbx_productid.Text;
			SqlDataReader dr=cm.ExecuteReader();
			if(dr.Read())
			{
				args.IsValid=false;
			}
			else
			{
				args.IsValid=true;
			}
			cn.Close();
		}

		private void Btn_exit_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("default.aspx");
		}
		public void DataGrid_cancel(object sender,DataGridCommandEventArgs e)
		{
			
			Dgd_product.EditItemIndex=-1;
			BindGrid();
			
		}
		
		public void DataGrid_edit(object sender,DataGridCommandEventArgs e)
		{
				if(Session["User_power"].ToString()=="0")
		 {
			
			 Dgd_product.EditItemIndex=(int)e.Item.ItemIndex;		
			 BindGrid();
		 }	
		}
		public void DataGrid_update(object sender,DataGridCommandEventArgs e)
		{  string strsql="update product set Product_name=@Product_name,Product_describe=@Product_describe where Product_id=@Product_id";
			SqlCommand cm=new SqlCommand(strsql,cn);
			cm.Parameters.Add(new SqlParameter("@Product_id",SqlDbType.Char,10));
			cm.Parameters.Add(new SqlParameter("@Product_name",SqlDbType.VarChar,50));
			cm.Parameters.Add(new SqlParameter("@Product_describe",SqlDbType.VarChar,50));
			string colvalue=((TextBox)e.Item.Cells[1].Controls[0]).Text;
			cm.Parameters["@Product_name"].Value=colvalue;
			colvalue=((TextBox)e.Item.Cells[2].Controls[0]).Text;
			cm.Parameters["@Product_describe"].Value=colvalue;
			cm.Parameters["@Product_id"].Value=Dgd_product.DataKeys[(int)e.Item.ItemIndex];
			cm.Connection.Open();
			try
			{
				cm.ExecuteNonQuery();
				Lbl_note.Text="编辑成功";
				Dgd_product.EditItemIndex=-1;
			}
			catch(SqlException)
			{
				Lbl_note.Text="编辑失败";
				Lbl_note.Style["color"]="red";
			}
			cm.Connection.Close();		
			BindGrid();
			
		}
		
		public void DataGrid_delete(object sender,DataGridCommandEventArgs e)
		{
			if(Session["User_power"].ToString()=="0")
			{
				string strsql="delete from product where Product_id=@productid";
				SqlCommand cm=new SqlCommand(strsql,cn);
				cm.Parameters.Add(new SqlParameter("@productid",SqlDbType.Char,10));
				cm.Parameters["@productid"].Value=Dgd_product.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();
			}

	
		}

	}
}