[我的ASP.net学习历程]DataBase Settion(7)

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;namespace _172._24._17._134{/// <summary>/// WebForm1 的摘要说明。/// </summary>public class WebForm1 : System.Web.UI.Page{protected System.Web.UI.WebControls.DataGrid DataGrid1;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 (!Page.IsPostBack){BindData();}}#region Web Form Designer generated codeoverride 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.DataGrid1.CancelCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_CancelCommand);this.DataGrid1.EditCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_EditCommand);this.DataGrid1.UpdateCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_UpdateCommand);this.Load += new System.EventHandler(this.Page_Load);}#endregionprivate void BindData(){string strSql = "SELECT ID,Username,Password,Content,Email,Homepage FROM Table_1";string connectionString = "Server=(local);User ID=user;Pwd=useruser;Database=TestDb;Connect Timeout=5";SqlConnection conn = new SqlConnection(connectionString);SqlCommand cmd = new SqlCommand(strSql,conn);cmd.Connection.Open();//DataSet ds = new DataSet();//SqlDataAdapter da = new SqlDataAdapter();////da.SelectCommand = cmd;////da.Fill(ds,"Table");////DataGrid1.DataSource = ds.Tables["Table"].DefaultView;//DataGrid1.DataBind();////ds.Clear();//da.Dispose();SqlDataReader dr = cmd.ExecuteReader();DataGrid1.DataSource = dr;DataGrid1.DataBind();dr.Close();cmd.Connection.Close();cmd.Connection.Dispose();}public void DataGrid1_EditCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e){DataGrid1.EditItemIndex = Convert.ToInt32(e.Item.ItemIndex);BindData();}public void DataGrid1_CancelCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e){DataGrid1.EditItemIndex = -1;BindData();}public void DataGrid1_UpdateCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e){string connectionString = "Server=(local);User ID=sa;Pwd=zxbbugu;Database=TestDb;Connect Timeout=5";string id = e.Item.Cells[0].Text.ToString();string username = ((TextBox)e.Item.Cells[1].Controls[0]).Text.ToString();string password = ((TextBox)e.Item.Cells[2].Controls[0]).Text.ToString();string content = ((TextBox)e.Item.Cells[3].Controls[0]).Text.ToString();string email = ((TextBox)e.Item.Cells[4].Controls[0]).Text.ToString();//string homepage = ((TextBox)e.Item.Cells[5].Controls[0]).Text.ToString();string strSql = "UPDATE Table_1 SET Username='" + username + "',Password='" + password;//strSql += "',Content='" + content + "',Email='" + email + "',Homepage='" + homepage;strSql += "',Content='" + content + "',Email='" + email;strSql += "' WHERE ID=" + id;////string username = ((TextBox)e.Item.Cells[1].Controls[0]).Text;//string strSql = @"UPDATE Table_1 SET Username='"+username+"' WHERE ID=" + id;SqlConnection conn = new SqlConnection(connectionString);SqlCommand cmd = new SqlCommand(strSql,conn);cmd.Connection.Open();cmd.ExecuteNonQuery();cmd.Dispose();conn.Close();conn.Dispose();DataGrid1.EditItemIndex = -1;BindData();}}}