researchmanmodule.ascx.cs

《C#数据库项目案例导航》一书的配套光盘

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

	/// <summary>
	///		ResearchManModule 的摘要说明。
	/// </summary>
	public class ResearchManModule : ModuleBase
	{
		protected System.Web.UI.WebControls.TextBox ClientNameTextBox;
		protected System.Web.UI.WebControls.Button search;
		protected System.Web.UI.WebControls.DataList dl_ResearchList;
		protected System.Web.UI.WebControls.Button ShowAll;

		private void Page_Load(object sender, System.EventArgs e)
		{
			if(!IsPostBack)
			{
				//完成dl_ResearchList的数据绑定
				Show_ResearchList();
			}
		}

		protected void Show_ResearchList()
		{	
			//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);
			string selsql="select RecordId,ClientName,Researched from Records where Rstatus=3 and IsResearch=0";
			//创建SqlDataAdapter对象,调用selsql
			SqlDataAdapter myadapter=new SqlDataAdapter (selsql,Conn);
			//创建并填充DataSet
			DataSet ds = new DataSet ();
			myadapter.Fill (ds);
			dl_ResearchList.DataSource =ds;
			dl_ResearchList.DataBind ();
			//实现“状态”及“服务调查”列的显示
			for(int i=0;i<dl_ResearchList.Items.Count;i++)
			{
				DataRow dr=ds.Tables[0].Rows[i];
                
				if(dr["Researched"].ToString()=="0")   //未进行调查
				{ 
					((Label)dl_ResearchList.Items[i].FindControl("StatusLabel")).Text="未调查";
					((HyperLink)dl_ResearchList.Items[i].FindControl("ResearchAddLink")).Visible=true;
				}
				else if(dr["Researched"].ToString()=="1")    //已进行调查
				{
					((Label)dl_ResearchList.Items[i].FindControl("StatusLabel")).Text="已调查";
					((HyperLink)dl_ResearchList.Items[i].FindControl("ResearchEditLink")).Visible=true;
				}
			}
			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.search.Click += new System.EventHandler(this.search_Click);
			this.ShowAll.Click += new System.EventHandler(this.ShowAll_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void search_Click(object sender, System.EventArgs e)
		{
			
			//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);
			//创建SqlDataAdapter对象,调用存储过程sp_GetResearchByClient
			SqlDataAdapter myadapter = new SqlDataAdapter ("sp_GetResearchByClient",Conn);
			myadapter.SelectCommand.CommandType=CommandType.StoredProcedure;
			myadapter.SelectCommand.Parameters .Add ("@ClientName",SqlDbType.NVarChar);
			myadapter.SelectCommand.Parameters ["@ClientName"].Value =ClientNameTextBox.Text.Trim();
			//创建并填充DataSet
			DataSet ds = new DataSet ();
			myadapter.Fill (ds);

			dl_ResearchList.DataSource =ds;
			dl_ResearchList.DataBind ();
			//实现“状态”及“服务调查”列的显示
			for(int i=0;i<dl_ResearchList.Items.Count;i++)
			{
				DataRow dr=ds.Tables[0].Rows[i];
                
				if(dr["Researched"].ToString()=="0")   //未进行调查
				{ 
					((Label)dl_ResearchList.Items[i].FindControl("StatusLabel")).Text="未调查";
					((HyperLink)dl_ResearchList.Items[i].FindControl("ResearchAddLink")).Visible=true;
				}
				else if(dr["Researched"].ToString()=="1")    //已进行调查
				{
					((Label)dl_ResearchList.Items[i].FindControl("StatusLabel")).Text="已调查";
					((HyperLink)dl_ResearchList.Items[i].FindControl("ResearchEditLink")).Visible=true;
				}
			}
			Conn.Close ();
		}

		private void ShowAll_Click(object sender, System.EventArgs e)
		{
			//完成dl_ResearchList的数据绑定
			Show_ResearchList();
		}
	}
}