C# ContextMenu.Show方法代码示例

        public override void ShowContextMenu(CommandID menuID, int x, int y)
        {
            base.ShowContextMenu(menuID, x, y);

            if (menuID == WorkflowMenuCommands.SelectionMenu)
            {
                ContextMenu contextMenu = new ContextMenu();
                foreach (DesignerVerb verb in Verbs)
                {
                    MenuItem menuItem = new MenuItem(verb.Text, new EventHandler(OnMenuClicked));
                    menuItem.Tag = verb;
                    contextMenu.MenuItems.Add(menuItem);
                }

                foreach (MenuItem menu in BuildItemsForSeletion())
                {
                    contextMenu.MenuItems.Add(menu);
                }

                WorkflowView workflowView = GetService(typeof(WorkflowView)) as WorkflowView;
                if (workflowView != null)
                {
                    contextMenu.Show(workflowView, workflowView.PointToClient(new Point(x, y)));
                }
            }
        }

        private void changeTeamButton_Click(object sender, EventArgs e)
        {
            ContextMenu menu = new ContextMenu();

            if (Program.TasClient.MyBattle != null)
            {
                menu.MenuItems.AddRange(ZeroKLobby.MicroLobby.ContextMenus.GetSetAllyItems());
            }

            menu.Show(btnChangeTeam, new Point(0, 0));
        }

 public void Contmenus()
 {
     MenuItem m1 = new MenuItem("添加");
     MenuItem m2 = new MenuItem("修改");
     MenuItem[] menuitems = new MenuItem[] { m1, m2 };
     ContextMenu button1ctm = new ContextMenu(menuitems);
     Point p = new Point(0, button3.Size.Height);
     button1ctm.Show(button3,p);
     m1.Click += new System.EventHandler(tianj_click);//选择添加按钮时，添加事件
     m2.Click += new System.EventHandler(tianj1_click);//同上，选择修改按钮
 }

        private void propertyGrid1_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                var selectedObj = propertyGrid1.SelectedGridItem;

                var mainFrm = Application.OpenForms.OfType<MainForm>().FirstOrDefault();

                var contextMenu = new ContextMenu(mainFrm.GetMenuItems(selectedObj.Value.GetType()));
                contextMenu.Show(sender as Control, e.Location);
            }
        }

        private void addAIButton_Click(object sender, EventArgs e)
        {
            var enabled = Program.TasClient.MyBattle != null; // && Program.ModStore.Ais != null && Program.ModStore.Ais.Any();
            ContextMenu menu = new ContextMenu();

            if (!enabled)
            {
                // TODO
                return;
            }

            menu.MenuItems.AddRange(ZeroKLobby.MicroLobby.ContextMenus.GetAddBotItems());
            menu.Show(btnAddAI, new Point(0, 0));
        }

 private void bookGridView_MouseClick(Object sender, MouseEventArgs e)
 {
     if (e.Button == MouseButtons.Right)
     {
         ContextMenu m = new ContextMenu();
         MenuItem miEdit = new MenuItem("Edit");
         MenuItem miDelete = new MenuItem("Delete");
         MenuItem miAdd = new MenuItem("Add");
         m.MenuItems.Add(miDelete);
         m.MenuItems.Add(miAdd);
         m.MenuItems.Add(miEdit);
         miEdit.Click += new System.EventHandler(this.editMenuItem_Click);
         miAdd.Click += new System.EventHandler(this.addMenuItem_Click);
         miDelete.Click += new System.EventHandler(this.deleteMenuItem_Click);
         int currentMouseOverRow = bookGridView.HitTest(e.X, e.Y).RowIndex;
         m.Show(bookGridView,new Point(e.X,e.Y));                
     }
 }

 private void SzBox_MouseDown(object sender, MouseEventArgs e)
 {
     if (e.Button == MouseButtons.Right)
     {
         int indexOfItem;
         indexOfItem = SzBox.IndexFromPoint(e.X, e.Y); //(2)
         if (indexOfItem < SzBox.Items.Count)
         {
             SuppressChange = true;
             SzBox.SelectedIndex = indexOfItem;
             MenuItem[] Y = new MenuItem[2];
             Y[0] = new MenuItem("Delete Seizure");
             Y[0].Click += new System.EventHandler(DeleteSz);
             Y[1] = new MenuItem("Edit Notes");
             ContextMenu X = new ContextMenu(Y);
             X.Show(SzBox, new Point(e.X, e.Y));
         }
     }
 }

        private void dataGridViewAlunos_MouseClick(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                ContextMenu m = new ContextMenu();
                m.MenuItems.Add(new MenuItem("Ver"));
                m.MenuItems.Add(new MenuItem("Copiar"));

                /*int currentMouseOverRow = dataGridViewAlunos.HitTest(e.X, e.Y).RowIndex;

                if (currentMouseOverRow >= 0)
                {
                    m.MenuItems.Add(new MenuItem(string.Format("Do something to row {0}", currentMouseOverRow.ToString())));
                }*/

                m.Show(dataGridViewAlunos, new Point(e.X, e.Y));

            }
        }

		private void mModelTree_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
		{
			if (e.Button == MouseButtons.Right)
			{
				var treeNode = tvwModel.GetNodeAt(e.X, e.Y);
				if (treeNode != null)
				{
					var controller = ((ModelObjectTreeNode)treeNode).Controller;
					var cm = new ContextMenu();
					var commands = controller.GetMenuCommands();
					if (commands != null)
					{
						foreach (var tmpMenuCommand in controller.GetMenuCommands())
						{
							cm.MenuItems.Add(tmpMenuCommand);
						}
					}
					cm.Show(this, new Point(e.X, e.Y));
				}
			}
		}

        private void DGVProperties_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                ContextMenu m = new ContextMenu();
                m.MenuItems.Add(new MenuItem("Cut"));
                m.MenuItems.Add(new MenuItem("Copy"));
                m.MenuItems.Add(new MenuItem("Paste"));

                m.MenuItems[0].Click += DGVProperties_Cut;
                int currentMouseOverRow = DGVProperties.HitTest(e.X, e.Y).RowIndex;

                if (currentMouseOverRow >= 0)
                {
                    m.MenuItems.Add(new MenuItem(string.Format("Do something to row {0}", currentMouseOverRow.ToString())));
                }

                m.Show(DGVProperties, new Point(e.X, e.Y));

            }
        }

        public void Click(ScreenDrawingSurface surface, Point location)
        {
            ContextMenu menu = new ContextMenu();

            // find a join to modify
            var nearest = NearestJoin(surface, location);

            if (nearest != null)
            {
                string typeText = (nearest.type == JoinType.Vertical)? "Left-Right" : "Up-Down";

                menu.MenuItems.Add("Modify " + typeText + " Join from " + nearest.screenOne + " to " + nearest.screenTwo, (s, e) => EditJoin(surface, nearest));

                menu.MenuItems.Add("Delete " + typeText + " Join from " + nearest.screenOne + " to " + nearest.screenTwo, (s, e) => DeleteJoin(surface, nearest));
            }
            else
            {
                if (location.X > surface.Width - surface.Screen.Tileset.TileSize)
                {
                    menu.MenuItems.Add(new MenuItem("New Rightward Join from " + surface.Screen.Name,
                                                    (s, e) => NewJoin(surface, surface.Screen.Name, "", JoinType.Vertical, location.Y / surface.Screen.Tileset.TileSize)));
                }
                if (location.X < surface.Screen.Tileset.TileSize)
                {
                    menu.MenuItems.Add(new MenuItem("New Leftward Join from " + surface.Screen.Name,
                                                    (s, e) => NewJoin(surface, "", surface.Screen.Name, JoinType.Vertical, location.Y / surface.Screen.Tileset.TileSize)));
                }
                if (location.Y > surface.Height - surface.Screen.Tileset.TileSize)
                {
                    menu.MenuItems.Add(new MenuItem("New Downward Join from " + surface.Screen.Name,
                                                    (s, e) => NewJoin(surface, surface.Screen.Name, "", JoinType.Horizontal, location.X / surface.Screen.Tileset.TileSize)));
                }
                if (location.Y < surface.Screen.Tileset.TileSize)
                {
                    menu.MenuItems.Add(new MenuItem("New Upward Join from " + surface.Screen.Name,
                                                    (s, e) => NewJoin(surface, "", surface.Screen.Name, JoinType.Horizontal, location.X / surface.Screen.Tileset.TileSize)));
                }
            }
            menu.Show(surface, location);
        }

        private void dataGridView1_CellMouseClick(object sender, DataGridViewCellMouseEventArgs e)
        {
            if (e.Button != MouseButtons.Right)
                return;

            if (e.RowIndex < 0 || e.ColumnIndex < 0)
                return;

            var row = dataGridView1.Rows[e.RowIndex].DataBoundItem as BreakPointEntry;

            breakPointEntry = row;

            var relativeMousePosition = dataGridView1.PointToClient(Cursor.Position);

            MenuItem menu = new MenuItem(row.Name);
            menu.Enabled = false;
            ContextMenu m = new ContextMenu();
            m.MenuItems.Add(menu);
            m.MenuItems.Add(new MenuItem("Copy to &Clipboard", new EventHandler(MenuItem3_Click)));
            m.MenuItems.Add(new MenuItem("&Delete breakpoint", new EventHandler(MenuItem1_Click)));
            m.Show(dataGridView1, relativeMousePosition);
        }

        private void CheckSuitsGrid_MouseClick(object sender, MouseEventArgs e)
        {
            switch (e.Button)
            {
                case MouseButtons.Right:
                    ContextMenu contextMenu = new ContextMenu();
                    MenuItem menuItemEdit = new MenuItem("&Edit", MenuItemEdit_Click);
                    MenuItem menuItemDelete = new MenuItem("&Delete", MenuItemDelete_Click);

                    var hti = checkSuitsGrid.HitTest(e.X, e.Y);
                    if (hti.RowIndex >= 0)
                    {
                        checkSuitsGrid.ClearSelection();
                        checkSuitsGrid.Rows[hti.RowIndex].Selected = true;
                    }

                    contextMenu.MenuItems.Add(menuItemEdit);
                    contextMenu.MenuItems.Add(menuItemDelete);
                    checkSuitsGrid.ContextMenu = contextMenu;
                    contextMenu.Show(checkSuitsGrid, new Point(e.X, e.Y));
                    break;
            }
        }

        //컨텍스트 메뉴(context menu)
        // 마우스 우측 버튼이 눌린 경우 실행되는 Form 재정의 메서드
        protected override void OnMouseClick(MouseEventArgs e)
        {
            base.OnMouseClick(e);

            // 마우스 우측 버튼이 눌린 경우
            if (e.Button == System.Windows.Forms.MouseButtons.Right)
            {
                // 컨텍스트 메뉴 객체를 만들고
                ContextMenu ctxMenu = new ContextMenu();

                // 컨텍스트 메뉴에 들어갈 2개의 MenuItem을 생성해서 추가
                MenuItem menuItem = new MenuItem("새로 고침");
                menuItem.Click += msRefresh_Click;
                ctxMenu.MenuItems.Add(menuItem);

                menuItem = new MenuItem("종료");
                //해당 메뉴에 이벤트 처리기 연결
                menuItem.Click += msClose_Click;
                ctxMenu.MenuItems.Add(menuItem);

                // 최종적으로 구성된 컨텍스트 메뉴를 마우스가 눌린 위치에서 팝업
                ctxMenu.Show(this, e.Location);
            }
        }

        protected override void OnMouseUp(MouseEventArgs e)
        {
            if (e.Button == System.Windows.Forms.MouseButtons.Right)
            {
                cm = new ContextMenu();
                cm.MenuItems.AddRange(new MenuItem[]{
                    new MenuItem("Add", new EventHandler(addOnClick)),
                    new MenuItem("Rename", new EventHandler(renameOnClick)),
                    new MenuItem("Delete", new EventHandler(deleteOnClick))
                });
                for (int i = 0; i < TabCount; i++)
                {
                    Rectangle r = GetTabRect(i);
                    if (r.Contains(e.Location))
                    {
                        cm.Tag = i;
                        break;
                    }
                }

                    cm.Show(this, e.Location);
            }
            base.OnMouseUp(e);
        }