C# Forms.Button类代码示例

        /// <summary>
        /// Creates a new menu form.
        /// </summary>
        /// <param name="title">Window title.</param>
        /// <param name="itemNames">Item names.</param>
        /// <param name="actions">Actions.</param>
        public MenuForm(string title, string[] itemNames, Action[] actions)
        {
            Title = title;
            SelectedIndex = -1;

            if (itemNames == null || actions == null)
                return;
            if (itemNames.Length != actions.Length)
                return;

            var stackLayout = new StackLayout {Orientation = Orientation.Vertical, HorizontalContentAlignment = HorizontalAlignment.Stretch };

            for (int i = 0; i < itemNames.Length; i++)
            {
                var idx = i;

                var button = new Button { Text = itemNames[idx], Size = new Size(240, 60) }; 
                button.Click += (s, e) =>
                {
                    actions[idx]();
                    SelectedIndex = idx;
                    this.Close();
                };

                stackLayout.Items.Add(new StackLayoutItem(button, true));
            }

            Content = stackLayout;
            Size = new Size(-1, -1);
        }

		Control TestProperties()
		{
			var layout = new DynamicLayout { DefaultSpacing = new Size(5, 5) };
			DateTimePicker min, max, current, setValue;
			Button setButton;

			layout.AddRow("Min Value", min = new DateTimePicker());
			layout.AddRow("Max Value", max = new DateTimePicker());
			layout.BeginHorizontal();
			layout.Add("Set to value");
			layout.BeginVertical(Padding.Empty);
			layout.BeginHorizontal();
			layout.AddAutoSized(setValue = new DateTimePicker());
			layout.Add(setButton = new Button { Text = "Set" });
			layout.EndHorizontal();
			layout.EndVertical();
			layout.EndHorizontal();
			layout.AddRow("Value", current = new DateTimePicker());

			min.ValueChanged += (sender, e) => current.MinDate = min.Value ?? DateTime.MinValue;
			max.ValueChanged += (sender, e) => current.MaxDate = max.Value ?? DateTime.MaxValue;
			setButton.Click += (sender, e) => current.Value = setValue.Value;
			LogEvents(current);

			return layout;
		}

		Control TestProperties()
		{
			var layout = new DynamicLayout();
			DateTimePicker min, max, current, setValue;
			Button setButton;

			layout.AddRow(new Label { Text = "Min Value" }, min = new DateTimePicker());
			layout.AddRow(new Label { Text = "Max Value" }, max = new DateTimePicker());
			layout.BeginHorizontal();
			layout.Add(new Label { Text = "Set to value" });
			layout.BeginVertical();
			layout.BeginHorizontal();
			layout.AddAutoSized(setValue = new DateTimePicker());
			layout.Add(setButton = new Button { Text = "Set" });
			layout.EndHorizontal();
			layout.EndVertical();
			layout.EndHorizontal();
			layout.AddRow(new Label { Text = "Value" }, current = new DateTimePicker());

			min.ValueChanged += (sender, e) => current.MinDate = min.Value ?? DateTime.MinValue;
			max.ValueChanged += (sender, e) => current.MaxDate = max.Value ?? DateTime.MaxValue;
			setButton.Click += (sender, e) => current.Value = setValue.Value;
			LogEvents(current);

			return layout;
		}

		public ServerDialog (Server server, bool isNew, bool allowConnect)
		{
			this.isNew = isNew;
			this.allowConnect = allowConnect && !isNew;
			this.Server = server;
			this.Title = "Add Server";
			this.MinimumSize = new Size (300, 0);
			this.DataContext = server;
			
			var layout = new DynamicLayout (this);
			
			layout.BeginVertical ();
			
			layout.AddRow (new Label { Text = "Server Name"}, ServerName ());
			
			// generate server-specific edit controls
			server.GenerateEditControls (layout, isNew);
			
			layout.AddRow (null, AutoConnectButton());
			
			layout.EndBeginVertical ();

			layout.AddRow (Connect (), Disconnect (), null, cancelButton = this.CancelButton (), this.OkButton ("Save", () => SaveData()));
			
			layout.EndVertical ();
			
			SetVisibility ();
		}

		Control StartStopButton(ProgressBar bar)
		{
			var control = new Button { Text = "Start Timer" };
			control.Click += delegate
			{
				if (timer == null)
				{
					timer = new UITimer { Interval = 0.5 };
					timer.Elapsed += delegate
					{
						if (bar.Value < bar.MaxValue)
							bar.Value += 50;
						else
							bar.Value = bar.MinValue;
					};
					timer.Start();
					control.Text = "Stop Timer";
				}
				else
				{
					timer.Stop();
					timer.Dispose();
					timer = null;
					control.Text = "Start Timer";
				}
			};
			return control;
		}

		Control ToggleButton ()
		{
			var control = new Button {
				Text = "Add Columns To Table"
			};

			control.Click += delegate {
				toggle = !toggle;
				this.SuspendLayout ();
				if (toggle) {
					mainTable.Add (VerticalSection (), 0, 0);
					rightSection.AddDockedControl (VerticalSection ());
					middleTable.Add (HorizontalSection (), 0, 2);
					topSection.AddDockedControl (HorizontalSection ());
					control.Text = "Remove Columns";
				}
				else {
					mainTable.Add (null, 0, 0);
					rightSection.AddDockedControl (null);
					middleTable.Add (null, 0, 2);
					topSection.AddDockedControl (null);
					control.Text = "Add Columns To Table";
				}
				this.ResumeLayout ();
			};

			return control;
		}

        void Init()
        {
            //_textBoxUrl
            _textBoxUrl = new TextBox();

            //_buttonReadFile
            _buttonReadFile = new Button { Text = StrRes.GetString("StrLoad", "Load") };
            _buttonReadFile.Click += _buttonReadFile_Click;

            //_buttonSaveFile
            _buttonSaveFile = new Button {Text = StrRes.GetString("StrSave","Save")};
            _buttonSaveFile.Click += _buttonSaveFile_Click;

            //_textAreaBody
            _textAreaBody = new TextArea();

            var layout = new DynamicLayout { Padding = new Padding(5, 5), Spacing = new Size(5, 5) };
            layout.BeginVertical();
            layout.BeginHorizontal();
            layout.AddCentered(_textBoxUrl, xscale: true, horizontalCenter: false);
            layout.AddCentered(_buttonReadFile, horizontalCenter: false);
            layout.AddCentered(_buttonSaveFile, horizontalCenter: false);
            layout.EndBeginHorizontal();
            layout.EndVertical();

            layout.AddRow(_textAreaBody);

            Content = layout;
        }

        void Init()
        {
	        _tbxShellData = new TextArea {Size = new Size(-1, 200)};
            _tbxMsg = new TextBox();
	        _btnShowMsgInStatus = new Button {Text = "Show Msg In Status", Width = 150};
            _btnShowMsgInStatus.Click+=btn_showMsgInStatus_Click;
			_btnShowMessageBox = new Button { Text = "Show Msg In Message", Width = 150 };
            _btnShowMessageBox.Click+=btn_showMessageBox_Click;
			_btnCreateNewTabPage = new Button { Text = "Create New TabPage", Width = 150 };
            _btnCreateNewTabPage.Click+=btn_createNewTabPage_Click;

			// Test
	        var btnTest = new Button {Text = "Test", Width = 150};
			btnTest.Click += btnTest_Click;

	        var layout = new DynamicLayout {Padding = new Padding(10, 10), Size = new Size(10, 10)};
            layout.AddRow(new Label() { Text = "ShellData"});
			layout.AddRow(_tbxShellData);
			layout.AddSeparateRow(new Label() { Text = "Msg", VerticalAlign = VerticalAlign.Middle }, _tbxMsg, null);
	        layout.AddAutoSized(_btnShowMsgInStatus);
	        layout.AddAutoSized(_btnShowMessageBox);
	        layout.AddAutoSized(_btnCreateNewTabPage);
			layout.AddAutoSized(btnTest);
			layout.Add(null);

            this.Content = layout;
        }

		Control ClearButton (ListBox list)
		{
			var control = new Button{ Text = "Clear" };
			control.Click += delegate {
				list.Items.Clear ();
			};
			return control;
		}

        protected virtual void LogEvents(Button control)
        {
            control.Click += delegate {
                Log.Write (control, "Click");
            };

            LogEvents ((Control)control);
        }

		Control ShowSelectedText (TextArea text)
		{
			var control = new Button { Text = "Show selected text" };
			control.Click += (sender, e) => {
				MessageBox.Show (this, string.Format ("Selected Text: {0}", text.SelectedText));
			};
			return control;
		}

		protected override Forms.Window GetWindow()
		{
			// Add splitters like this:
			// |---------------------------
			// |        |      |          |
			// |  P0    |  P2  |   P4     |
			// | -------|      |          |  <== These are on MainPanel
			// |  P1    |------|          |
			// |        |  P3  |          |
			// |---------------------------
			// |         status0..4,      |  <== These are on StatusPanel
			// ----------------------------

			Label[] status = new Label[] { new Label(), new Label(), new Label(), new Label(), new Label() };

			// Status bar
			var statusPanel = new Panel { };
			var statusLayout = new DynamicLayout(Padding.Empty, Size.Empty);
			statusLayout.BeginHorizontal();
			for (var i = 0; i < status.Length; ++i)
				statusLayout.Add(status[i], xscale: true);
			statusLayout.EndHorizontal();
			statusPanel.Content = statusLayout;

			// Splitter windows
			Panel[] p = new Panel[] { new Panel(), new Panel(), new Panel(), new Panel(), new Panel() };
			var colors = new Color[] { Colors.PaleTurquoise, Colors.Olive, Colors.NavajoWhite, Colors.Purple, Colors.Orange };
			var count = 0;
			for (var i = 0; i < p.Length; ++i)
			{
				var temp = i;
				//p[i].BackgroundColor = colors[i];
				var button = new Button { Text = "Click to update status " + i.ToString(), BackgroundColor = colors[i] };
				button.Click += (s, e) => status[temp].Text = "New count: " + (count++).ToString();
				p[i].Content = button;
			}

			var p0_1 = new Splitter { Panel1 = p[0], Panel2 = p[1], Orientation = SplitterOrientation.Vertical, Position = 200 };
			var p2_3 = new Splitter { Panel1 = p[2], Panel2 = p[3], Orientation = SplitterOrientation.Vertical, Position = 200 };
			var p01_23 = new Splitter { Panel1 = p0_1, Panel2 = p2_3, Orientation = SplitterOrientation.Horizontal, Position = 200};
			var p0123_4 = new Splitter { Panel1 = p01_23, Panel2 = p[4], Orientation = SplitterOrientation.Horizontal, Position = 400 };

			// Main panel
			var mainPanel = new Panel();
			mainPanel.Content = p0123_4;

			// Form's content
			var layout = new DynamicLayout();
			layout.Add(mainPanel, yscale: true);
			layout.Add(statusPanel);
			layout.Generate();
			var form = new Form 
			{ 
				Size = new Size(800, 600),
				Content = layout
			};
			return form;
		}

		Control RemoveRowsButton (ListBox list)
		{
			var control = new Button{ Text = "Remove Rows" };
			control.Click += delegate {
				if (list.SelectedIndex >= 0)
					list.Items.RemoveAt (list.SelectedIndex);
			};
			return control;
		}

		Control AddRowsButton (ListBox list)
		{
			var control = new Button{ Text = "Add Rows" };
			control.Click += delegate {
				for (int i = 0; i < 10; i++)
					list.Items.Add (new ListItem { Text = "Item " + list.Items.Count});
			};
			return control;
		}

		Control CloseButton()
		{
			var control = new Button{ Text = "Close" };
			control.Click += delegate {
				Close ();
			};
			this.DefaultButton = this.AbortButton = control;
			return control;
		}