teacher.aspx.cs

基于C#语言的一个教务网数据库系统开发案例的源代码 ,很实用哦

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

namespace sms
{
	/// <summary>
	/// teacher 的摘要说明。
	/// </summary>
	public partial class teacher : System.Web.UI.Page
	{
        private DataAccess DataAs;
		protected void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(!IsPostBack) 
				Bindgrid();
		}

		#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()
		{    

		}
		#endregion

		public void Bindgrid()
		{
			string strsql="select * from teacher";
            DataAs = new DataAccess();
            DataTable DT = DataAs.CreateDatatable(strsql);
			GridView1.DataSource=DT;
            GridView1.DataBind();
		}

		protected void Btn_search_Click(object sender, System.EventArgs e)
		{
			string strsql="select * from teacher  where Teacher_id='"+Tbx_id.Text+"'or Teacher_name='"+Tbx_name.Text+"'";
			DataAs = new DataAccess();
            DataTable DT = DataAs.CreateDatatable(strsql);
            GridView1.DataSource = DT;
            GridView1.DataBind();
		}		

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

		protected void Btn_exit_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("~/Default.aspx");
		}	
		public void DataGrid_sort(object sender,DataGridCommandEventArgs e)
		{
            string strsql = "insert into users(User_id,User_password,User_power) values('" + GridView1.DataKeys[e.Item.ItemIndex] + "','" + GridView1.DataKeys[e.Item.ItemIndex] + "',0)";
            DataAs = new DataAccess();
            bool Result = DataAs.ExecSql(strsql);
			if (Result)
			{
				Response.Redirect("userlist.aspx");
				
			}
			else
			{
				Lbl_note.Text="添加失败";
				Lbl_note.Style["color"]="red";
			}		
		}

        protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            GridView1.PageIndex = e.NewPageIndex;
            Bindgrid();
        }
        protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
        {
            GridView1.EditIndex = -1;
            Bindgrid();
        }
        protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            string strsql = "delete from teacher where Teacher_id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
            DataAs = new DataAccess();
            bool Result = DataAs.ExecSql(strsql);
            if (Result)
            {
                Lbl_note.Text = "删除成功";

            }
            else
            {
                Lbl_note.Text = "删除失败";
                Lbl_note.Style["color"] = "red";
            }
            Bindgrid();
        }
        protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
        {
            GridView1.EditIndex = e.NewEditIndex ;
            Bindgrid();
        }
        protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            GridViewRow gvr = GridView1.Rows[e.RowIndex];
            string strsql = "update teacher set Teacher_name='" + ((TextBox)gvr.Cells[2].Controls[0]).Text + "',Teacher_college='" + ((TextBox)gvr.Cells[3].Controls[0]).Text +
                           "' where Teacher_id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
            DataAs = new DataAccess();
            bool Result = DataAs.ExecSql(strsql);
            if (Result)
            {
                Lbl_note.Text = "编辑成功";
                GridView1.EditIndex = -1;
            }
            else
            {
                Lbl_note.Text = "编辑失败";
                Lbl_note.Style["color"] = "red";
            }
            Bindgrid();
        }
}
}