gradetable.aspx.cs

1、该系统只是测试一下本人设计的类库是否正确。 2、只包含一些简单的查询(主键

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 BusinessRules;

namespace xx8910
{
	/// <summary>
	/// GradeTable 的摘要说明。
	/// </summary>
	public class GradeTable : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label lblGradeID;
		protected System.Web.UI.WebControls.Label lblGradeName;
		protected System.Web.UI.WebControls.Label lblRemark;
		protected System.Web.UI.WebControls.Panel PanelDataGrid;
		protected System.Web.UI.WebControls.Panel PanelQueryWithKey;
		protected System.Web.UI.WebControls.TextBox txtInsertGradeID;
		protected System.Web.UI.WebControls.TextBox txtInsertGradeName;
		protected System.Web.UI.WebControls.TextBox txtInsertRemark;
		protected System.Web.UI.WebControls.Button btnInsertOk;
		protected System.Web.UI.WebControls.Button btnInsertGiveUp;
		protected System.Web.UI.WebControls.Panel PanelInsert;
		protected System.Web.UI.WebControls.Label lblEditGradeID;
		protected System.Web.UI.WebControls.TextBox txtEditRemark;
		protected System.Web.UI.WebControls.Button btnEditOk;
		protected System.Web.UI.WebControls.Button btnEditGiveUp;
		protected System.Web.UI.WebControls.Panel PanelEdit;
		protected System.Web.UI.WebControls.Button btnQueryAll;
		protected System.Web.UI.WebControls.Button btnQueryWithCond;
		protected System.Web.UI.WebControls.TextBox txtQueryWithCond;
		protected System.Web.UI.WebControls.Button btnQueryWithKey;
		protected System.Web.UI.WebControls.TextBox txtQueryWithKey;
		protected System.Web.UI.WebControls.DropDownList drpEditGradeName;
		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(!this.IsPostBack)
			{
				this.Bind();
			}
			this.PanelDataGrid.Visible=true;
			this.PanelQueryWithKey.Visible=false;
			this.PanelInsert.Visible=false;
			this.PanelEdit.Visible=false;
		}

		#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.btnQueryAll.Click += new System.EventHandler(this.btnQueryAll_Click);
			this.btnQueryWithCond.Click += new System.EventHandler(this.btnQueryWithCond_Click);
			this.btnQueryWithKey.Click += new System.EventHandler(this.btnQueryWithKey_Click);
			this.DataGrid1.ItemCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_ItemCommand);
			this.DataGrid1.EditCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_EditCommand);
			this.DataGrid1.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_DeleteCommand);
			this.DataGrid1.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.DataGrid1_ItemDataBound);
			this.btnInsertOk.Click += new System.EventHandler(this.btnInsertOk_Click);
			this.btnEditOk.Click += new System.EventHandler(this.btnEditOk_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		#region  绑定查询的数据void Bind()
		void Bind()
		{
			BusinessRules.GradeTable myGradeTable=new BusinessRules.GradeTable();
			this.DataGrid1.DataSource=myGradeTable.Query();
			this.DataGrid1.DataBind();
		}
		#endregion

		#region  绑定下拉控件的数据void drpBind()
		void drpBind()
		{
			BusinessRules.GradeTable myGradeTable=new BusinessRules.GradeTable();
			this.drpEditGradeName.DataSource=myGradeTable.Query();
			this.drpEditGradeName.DataTextField="GradeName";
			this.drpEditGradeName.DataValueField="GradeID";
			this.drpEditGradeName.DataBind();
		}
		#endregion

		private void btnQueryAll_Click(object sender, System.EventArgs e)//根据无条件查询
		{
			this.PanelDataGrid.Visible=true;
			this.PanelEdit.Visible=false;
			this.PanelInsert.Visible=false;
			this.PanelQueryWithKey.Visible=false;
			this.Bind();
		}

		private void btnQueryWithCond_Click(object sender, System.EventArgs e)//根据条件查询
		{
			string condition;
			condition=this.txtQueryWithCond.Text;
			BusinessRules.GradeTable myGradeTable=new BusinessRules.GradeTable();
			this.DataGrid1.DataSource=myGradeTable.Query(condition);
			this.DataGrid1.DataBind();

			this.PanelDataGrid.Visible=true;
			this.PanelEdit.Visible=false;
			this.PanelInsert.Visible=false;
			this.PanelQueryWithKey.Visible=false;
		}

		private void btnQueryWithKey_Click(object sender, System.EventArgs e)//根据主键查询
		{
			string key;
			key=this.txtQueryWithKey.Text;
			BusinessRules.GradeTable myGradeTable=new BusinessRules.GradeTable();
			myGradeTable.QueryWithKey(key);
			this.lblGradeID.Text=myGradeTable.GradeID;
			this.lblGradeName.Text=myGradeTable.GradeName;
			this.lblRemark.Text=myGradeTable.Remark;

			this.PanelDataGrid.Visible=false;
			this.PanelEdit.Visible=false;
			this.PanelInsert.Visible=false;
			this.PanelQueryWithKey.Visible=true;
		}

		private void DataGrid1_ItemCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)//添加
		{
			if(e.CommandName=="Insert")
			{
				this.PanelDataGrid.Visible=false;
				this.PanelEdit.Visible=false;
				this.PanelInsert.Visible=true;
				this.PanelQueryWithKey.Visible=false;
			}
		}

		private void DataGrid1_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)//删除
		{
			string str;
			string key=this.DataGrid1.DataKeys[e.Item.ItemIndex].ToString();
			BusinessRules.GradeTable myGradeTable=new BusinessRules.GradeTable();
			str=myGradeTable.IsDelete(key);
			if(str==null)
			{
				myGradeTable.Delete(key);
				Response.Write("<script language='javascript'>alert('删除成功!');</script>");
				this.Bind();
			}
			else
			{
				Response.Redirect("Error.aspx?"+"ErrorMsg="+str);
			}
		}

		private void DataGrid1_EditCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)//修改
		{
			this.PanelDataGrid.Visible=false;
			this.PanelEdit.Visible=true;
			this.PanelInsert.Visible=false;
			this.PanelQueryWithKey.Visible=false;

			string key=this.DataGrid1.DataKeys[e.Item.ItemIndex].ToString();
			this.lblEditGradeID.Text=key;//取,显示 主键

			this.drpBind();//绑定数据源

			BusinessRules.GradeTable myGradeTable=new BusinessRules.GradeTable();//显示GradeName,Remark
			myGradeTable.QueryWithKey(key);
			this.drpEditGradeName.SelectedItem.Text=myGradeTable.GradeName;
			this.txtEditRemark.Text=myGradeTable.Remark;	
		}

		private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)//绑定跳跃(激活)
		{
			if((e.Item.ItemType == ListItemType.Item || (e.Item.ItemType == ListItemType.AlternatingItem) ))
			{
				LinkButton IsDelete=(LinkButton)e.Item.Cells[e.Item.Cells.Count-1].FindControl("lbtnDelete");
				IsDelete.Attributes.Add("onclick","return confirm('确定删除吗?')");
			}
		}

		private void btnInsertOk_Click(object sender, System.EventArgs e)//确定添加
		{
			BusinessRules.GradeTable myGradeTable=new BusinessRules.GradeTable();
			if(myGradeTable.IsExist("GradeID='"+this.txtInsertGradeID.Text+"'"))
			{
				Response.Write("<script language='javascript'>alert('该GradeID已经存在');</script>");
			}
			else
			{
				myGradeTable.GradeID=this.txtInsertGradeID.Text;
				myGradeTable.GradeName=this.txtInsertGradeName.Text;
				myGradeTable.Remark=this.txtInsertRemark.Text;
				myGradeTable.Insert();
				this.Bind();
				Response.Write("<script language='javascript'>alert('添加成功!');</script>");
			}
		}

		private void btnEditOk_Click(object sender, System.EventArgs e)//确定编辑
		{
			BusinessRules.GradeTable myGradeTable=new BusinessRules.GradeTable();
			myGradeTable.GradeName=this.drpEditGradeName.SelectedItem.Text;
			myGradeTable.Remark=this.txtEditRemark.Text;
			if(myGradeTable.UpdateWithKey(this.lblEditGradeID.Text)>0)
			{
				Response.Write("<script language='javascript'>alert('修改成功!');</script>");
			}
			this.Bind();
		}

	}
}