mygridctrl.cs

用C#开发的录井油气识别专家系统

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using System.Diagnostics;
using OWNERDATASET;
using expert;


namespace OWNERGRID
{
	/// <summary>
	/// myGridCtrl 的摘要说明。
	/// </summary>
	public abstract class myGridCtrl : System.Windows.Forms.DataGrid
	{
		/// <summary> 
		/// 必需的设计器变量。
		/// </summary>
		private  System.ComponentModel.Container components = null;
		protected MenuItem OpenMenu;
		protected MenuItem SaveMenu;
		protected MenuItem CloseMenu;
		protected MenuItem SettingMenu;

		public myGridCtrl()
		{
			// 该调用是 Windows.Forms 窗体设计器所必需的。
			InitializeComponent();

			// TODO: 在 InitializeComponent 调用后添加任何初始化


			ContextMenu=new ContextMenu();
			
			OpenMenu=new MenuItem("&Open",new System.EventHandler(this.Open_Click));
			ContextMenu.MenuItems.Add(OpenMenu);
			
			SaveMenu=new MenuItem("&Save",new System.EventHandler(this.Save_Click));
			ContextMenu.MenuItems.Add(SaveMenu);
			
			CloseMenu=new MenuItem("&Close",new System.EventHandler(this.Close_Click));
			ContextMenu.MenuItems.Add(CloseMenu);
			ContextMenu.Popup += new System.EventHandler(this.conmn_Popup);

			SettingMenu=new MenuItem("S&etting",new System.EventHandler(this.Setting_Click));
			ContextMenu.MenuItems.Add(SettingMenu);
			
			ContextMenu.Popup += new System.EventHandler(this.conmn_Popup);

			

		}
		public abstract  void Open(string filename) ;

		/// <summary> 
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Component Designer generated code
		/// <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()
		{
			((System.ComponentModel.ISupportInitialize)(this)).BeginInit();
			// 
			// myGridCtrl
			// 
			
			((System.ComponentModel.ISupportInitialize)(this)).EndInit();

			Navigate += new System.Windows.Forms.NavigateEventHandler(OnNavigate);

		}
		#endregion
	
		protected void  OnRowSelect(object sender, System.EventArgs a)
		{
		}

		protected override void OnClick(	EventArgs e	)
		{
			base.OnClick(e);
			int i=0;
			i++;
		}

		private void OnNavigate(object sender, System.Windows.Forms.NavigateEventArgs ne)
		{
			
			CaptionText=DataMember;
		
		}

		public void Open_Click(Object sender, System.EventArgs e)
		{
			Open("");
			
			}
		protected   virtual  void Save_Click(Object sender, System.EventArgs e) 
		{
			this.CurDataSet.Update();
			this.Update();
		}

		protected  virtual void Setting_Click(Object sender, System.EventArgs e) 
		{
			SetFilterDlg dlg=new SetFilterDlg();

			DataViewManager dvm=DataSource as DataViewManager;
			dlg.dvsSetting=dvm.DataViewSettings[DataMember];
						
			dlg.ShowDialog(this);

			dlg.Dispose();
			

		}


		private void Close_Click(Object sender, System.EventArgs e) 
		{
			DataSource=null;
		}

		private void conmn_Popup(object sender, System.EventArgs e)
		{
		
			SaveMenu.Enabled=(DataSource!=null);
			CloseMenu.Enabled=(DataSource!=null);
			SettingMenu.Enabled=(DataSource!=null && DataMember.Length!=0);
			OpenMenu.Text=(DataSource!=null ? "&Change":"Open");
							

			int i=0;
			i++;
		}


		public void ShowTable(DataTable table)
		{
			TabPage page=null;
			TabControl control=null;
		
			page=Parent as TabPage;
			control=page.Parent as TabControl;
			control.SelectedTab=page;
			//DataMember=table.TableName;
		
			return;
			

		}
/*GetDataViewSelected 返回当前被选中的纪录的列表
 * tablename 表或者视图的名字，如果为空，则是当前的表或视图
 */ 
		public ArrayList GetDataViewSelected(string tablename)
		{

			ArrayList arr=new ArrayList();
			if(tablename.Length<=0)
				tablename=DataMember;
			BindingManagerBase bm = BindingContext[DataSource, tablename];
			for(int i=0;i<bm.Count;i++)
			{
				if(!IsSelected(i))
					continue;

				CurrentCell = new DataGridCell(i,1);
				DataRowView drv = (DataRowView) bm.Current;
				arr.Add(drv.Row);
				
				

			}
			return arr;

		}



		public myDataSet CurDataSet
		{
			get
			{
				DataViewManager dvm=DataSource as DataViewManager;
				if(dvm==null)
				{
					return null;
				}
				
				return dvm.DataSet as myDataSet;
			
				
			}
			
		}
		


	}//end class



	
}//end namespace OWNERGRID