rcatgaddmodule.ascx.cs

这里有好几个关于SQL Server 2000 开发的项目代码

namespace JdglWeb.Modules
{
	using System;
	using System.Data;
	using System.Data.SqlClient;
	using System.Drawing;
	using System.Web;
	using System.Web.UI.WebControls;
	using System.Web.UI.HtmlControls;
	using System.Configuration;

	/// <summary>
	///		RCatgAddModule 的摘要说明。
	/// </summary>
	public class RCatgAddModule : ModuleBase
	{
		protected System.Web.UI.WebControls.Label CreateLabel;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.CustomValidator IdUniqueCustomValidator;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator3;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator4;
		protected System.Web.UI.WebControls.ValidationSummary ValidationSummary1;
		protected System.Web.UI.WebControls.TextBox RCatgNameTextBox;
		protected System.Web.UI.WebControls.TextBox AreaTextBox;
		protected System.Web.UI.WebControls.TextBox BedNumTextBox;
		protected System.Web.UI.WebControls.TextBox PriceTextBox;
		protected System.Web.UI.WebControls.RadioButtonList TvList;
		protected System.Web.UI.WebControls.RadioButtonList AirConditionList;
		protected System.Web.UI.WebControls.Button SubmitButton;
		protected System.Web.UI.WebControls.Button ReturnButton;
		protected System.Web.UI.WebControls.Label ShowMsg;

		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
		}

		//验证房间类型是否已存在
		public void IsNameValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{
			//从文件Web.config中读取连接字符串
			string sqldb= ConfigurationSettings.AppSettings["ConnectionString"];
			//连接JdglSys数据库
			SqlConnection Conn= new SqlConnection (sqldb);
			Conn.Open ();
			//构造SQL语句，该语句在RoomCategory表中检查房间类型是否已存在
			string checksql= "select * from RoomCategory where Name='"+RCatgNameTextBox.Text.Trim() +"'";
			//创建Command对象
			SqlCommand mycommand=new SqlCommand  (checksql,Conn);
			//执行ExecuteReader ()方法
			SqlDataReader dr=mycommand.ExecuteReader ();
			if(dr.Read ())
			{
				args.IsValid =false;//房间类型已存在
			}
			else
			{
				args.IsValid =true;//房间类型未存在
			}
			//关闭连接
			Conn.Close();
		}


		#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.SubmitButton.Click += new System.EventHandler(this.SubmitButton_Click);
			this.ReturnButton.Click += new System.EventHandler(this.ReturnButton_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void SubmitButton_Click(object sender, System.EventArgs e)
		{
			if(Page.IsValid)
			{  
				//从文件Web.config中读取连接字符串
				string sqldb= ConfigurationSettings.AppSettings["ConnectionString"];
				//连接JdglSys数据库
				SqlConnection Conn= new SqlConnection (sqldb);
				Conn.Open ();
				//利用Command对象调用存储过程
				SqlCommand mycommand=new SqlCommand  ("sp_InsertRoomCategory",Conn);
				//将命令类型转为存储类型
				mycommand.CommandType =CommandType.StoredProcedure ;
				//往存储过程中添加参数
				mycommand.Parameters .Add ("@Name",SqlDbType.VarChar);
				mycommand.Parameters .Add ("@Area",SqlDbType.Float);
				mycommand.Parameters .Add ("@BedNum",SqlDbType.Int);
				mycommand.Parameters .Add ("@Price",SqlDbType.Money);
				mycommand.Parameters .Add ("@AirCondition",SqlDbType.Int);
				mycommand.Parameters .Add ("@TV",SqlDbType.Int);
				//给存储过程的参数赋值
				mycommand.Parameters ["@Name"].Value =RCatgNameTextBox.Text.Trim();
				mycommand.Parameters ["@Area"].Value =Convert.ToDouble(AreaTextBox.Text.Trim());
				mycommand.Parameters ["@BedNum"].Value =int.Parse(BedNumTextBox.Text.Trim());
				mycommand.Parameters ["@Price"].Value =Convert.ToDouble(PriceTextBox.Text.Trim());  
				mycommand.Parameters ["@AirCondition"].Value =AirConditionList.SelectedIndex;
				mycommand.Parameters ["@TV"].Value =TvList.SelectedIndex;
				try
				{
					mycommand.ExecuteNonQuery();
					ShowMsg.Text="新房间类型添加成功";
					ShowMsg.Style["color"]="green";}
				catch(SqlException error)
				{
					ShowMsg.Text="添加未成功，请稍后再试。原因："+error.Message;
					ShowMsg.Style["color"]="red";
				}
				//关闭连接
				Conn.Close();
			}
		}

		private void ReturnButton_Click(object sender, System.EventArgs e)
		{
		    Response.Redirect(PathPrefix+"/RCategoryMan.aspx");
		}
	}
}