WizardForm.cs source code in C# .NET

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/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / Util / WizardForm.cs / 1 / WizardForm.cs

                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.UI.Design.Util { 
 
    using System;
    using System.Collections; 
    using System.ComponentModel;
    using System.ComponentModel.Design;
    using System.Design;
    using System.Diagnostics; 
    using System.Drawing;
    using System.Windows.Forms; 
    using System.Windows.Forms.Design; 

    ///  
    /// Represents a wizard used to guide users through configuration processes.
    /// 
    internal abstract class WizardForm : TaskFormBase {
 
        private System.Windows.Forms.Button _nextButton;
        private System.Windows.Forms.Button _previousButton; 
        private System.Windows.Forms.Button _cancelButton; 
        private System.Windows.Forms.Button _finishButton;
        private System.Windows.Forms.TableLayoutPanel _wizardButtonsTableLayoutPanel; 
        private System.Windows.Forms.Label _dummyLabel1;
        private System.Windows.Forms.Label _dummyLabel2;
        private System.Windows.Forms.Label _dummyLabel3;
 
        System.Collections.Generic.Stack _panelHistory;
        private WizardPanel _initialPanel; 
 
        /// 
        /// Creates a new WizardForm with a given service provider. 
        /// 
        public WizardForm(IServiceProvider serviceProvider) : base(serviceProvider) {
            _panelHistory = new System.Collections.Generic.Stack();
 
            InitializeComponent();
            InitializeUI(); 
        } 

        ///  
        /// 
        /// Not used, according to FxCop.  Commenting out per [....]'s request.
        /*[
        Browsable(false), 
        ]
        public WizardPanel InitialPanel { 
            get { 
                return _initialPanel;
            } 
            set {
                _initialPanel = value;
            }
        }*/ 

        ///  
        /// The Finish button of the wizard. 
        /// 
        public Button FinishButton { 
            get {
                return _finishButton;
            }
        } 

        ///  
        /// The Next button of the wizard. 
        /// 
        public Button NextButton { 
            get {
                return _nextButton;
            }
        } 

        ///  
        /// The Back button of the wizard. 
        /// 
        public Button PreviousButton { 
            get {
                return _previousButton;
            }
        } 

        #region Designer generated code 
        ///  
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor. 
        /// 
        private void InitializeComponent() {

            this._wizardButtonsTableLayoutPanel = new System.Windows.Forms.TableLayoutPanel(); 
            this._previousButton = new System.Windows.Forms.Button();
            this._nextButton = new System.Windows.Forms.Button(); 
            this._dummyLabel2 = new System.Windows.Forms.Label(); 
            this._finishButton = new System.Windows.Forms.Button();
            this._dummyLabel3 = new System.Windows.Forms.Label(); 
            this._cancelButton = new System.Windows.Forms.Button();
            this._dummyLabel1 = new System.Windows.Forms.Label();
            this._wizardButtonsTableLayoutPanel.SuspendLayout();
            this.SuspendLayout(); 

            // 
            // _wizardButtonsTableLayoutPanel 
            //
            this._wizardButtonsTableLayoutPanel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right))); 
            this._wizardButtonsTableLayoutPanel.AutoSize = true;
            this._wizardButtonsTableLayoutPanel.ColumnCount = 7;
            this._wizardButtonsTableLayoutPanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 25F));
            this._wizardButtonsTableLayoutPanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 3F)); 
            this._wizardButtonsTableLayoutPanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 25F));
            this._wizardButtonsTableLayoutPanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 7F)); 
            this._wizardButtonsTableLayoutPanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 25F)); 
            this._wizardButtonsTableLayoutPanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 7F));
            this._wizardButtonsTableLayoutPanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 25F)); 
            this._wizardButtonsTableLayoutPanel.Controls.Add(this._previousButton);
            this._wizardButtonsTableLayoutPanel.Controls.Add(this._dummyLabel1);
            this._wizardButtonsTableLayoutPanel.Controls.Add(this._nextButton);
            this._wizardButtonsTableLayoutPanel.Controls.Add(this._dummyLabel2); 
            this._wizardButtonsTableLayoutPanel.Controls.Add(this._finishButton);
            this._wizardButtonsTableLayoutPanel.Controls.Add(this._dummyLabel3); 
            this._wizardButtonsTableLayoutPanel.Controls.Add(this._cancelButton); 
            this._wizardButtonsTableLayoutPanel.Location = new System.Drawing.Point(239, 384);
            this._wizardButtonsTableLayoutPanel.Name = "_wizardButtonsTableLayoutPanel"; 
            this._wizardButtonsTableLayoutPanel.RowStyles.Add(new System.Windows.Forms.RowStyle());
            this._wizardButtonsTableLayoutPanel.Size = new System.Drawing.Size(317, 23);
            this._wizardButtonsTableLayoutPanel.TabIndex = 100;
            // 
            // _previousButton
            // 
            this._previousButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right))); 
            this._previousButton.AutoSize = true;
            this._previousButton.Enabled = false; 
            this._previousButton.Location = new System.Drawing.Point(0, 0);
            this._previousButton.Margin = new System.Windows.Forms.Padding(0);
            this._previousButton.MinimumSize = new System.Drawing.Size(75, 23);
            this._previousButton.Name = "_previousButton"; 
            this._previousButton.TabIndex = 10;
            this._previousButton.Click += new System.EventHandler(this.OnPreviousButtonClick); 
            // 
            // _dummyLabel1
            // 
            this._dummyLabel1.Location = new System.Drawing.Point(75, 0);
            this._dummyLabel1.Margin = new System.Windows.Forms.Padding(0);
            this._dummyLabel1.Name = "_dummyLabel1";
            this._dummyLabel1.Size = new System.Drawing.Size(3, 0); 
            this._dummyLabel1.TabIndex = 20;
            // 
            // _nextButton 
            //
            this._nextButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right))); 
            this._nextButton.AutoSize = true;
            this._nextButton.Location = new System.Drawing.Point(78, 0);
            this._nextButton.Margin = new System.Windows.Forms.Padding(0);
            this._nextButton.MinimumSize = new System.Drawing.Size(75, 23); 
            this._nextButton.Name = "_nextButton";
            this._nextButton.TabIndex = 30; 
            this._nextButton.Click += new System.EventHandler(this.OnNextButtonClick); 
            //
            // _dummyLabel2 
            //
            this._dummyLabel2.Location = new System.Drawing.Point(153, 0);
            this._dummyLabel2.Margin = new System.Windows.Forms.Padding(0);
            this._dummyLabel2.Name = "_dummyLabel2"; 
            this._dummyLabel2.Size = new System.Drawing.Size(7, 0);
            this._dummyLabel2.TabIndex = 40; 
            // 
            // _finishButton
            // 
            this._finishButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
            this._finishButton.AutoSize = true;
            this._finishButton.Enabled = false;
            this._finishButton.Location = new System.Drawing.Point(160, 0); 
            this._finishButton.Margin = new System.Windows.Forms.Padding(0);
            this._finishButton.MinimumSize = new System.Drawing.Size(75, 23); 
            this._finishButton.Name = "_finishButton"; 
            this._finishButton.TabIndex = 50;
            this._finishButton.Click += new System.EventHandler(this.OnFinishButtonClick); 
            //
            // _dummyLabel3
            //
            this._dummyLabel3.Location = new System.Drawing.Point(235, 0); 
            this._dummyLabel3.Margin = new System.Windows.Forms.Padding(0);
            this._dummyLabel3.Name = "_dummyLabel3"; 
            this._dummyLabel3.Size = new System.Drawing.Size(7, 0); 
            this._dummyLabel3.TabIndex = 60;
            // 
            // _cancelButton
            //
            this._cancelButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
            this._cancelButton.AutoSize = true; 
            this._cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
            this._cancelButton.Location = new System.Drawing.Point(242, 0); 
            this._cancelButton.Margin = new System.Windows.Forms.Padding(0); 
            this._cancelButton.MinimumSize = new System.Drawing.Size(75, 23);
            this._cancelButton.Name = "_cancelButton"; 
            this._cancelButton.TabIndex = 70;
            this._cancelButton.Click += new System.EventHandler(this.OnCancelButtonClick);
            //
            // TaskForm 
            //
            this.AcceptButton = this._nextButton; 
            this.CancelButton = this._cancelButton; 
            this.Controls.Add(this._wizardButtonsTableLayoutPanel);
            this.MinimumSize = new System.Drawing.Size(580, 450); 
            this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Show;
            this._wizardButtonsTableLayoutPanel.ResumeLayout(false);
            this._wizardButtonsTableLayoutPanel.PerformLayout();
 
            InitializeForm();
 
            this.ResumeLayout(false); 
            this.PerformLayout();
        } 
        #endregion

        /// 
        /// Called after InitializeComponent to perform additional actions that 
        /// are not supported by the designer.
        ///  
        private void InitializeUI() { 
            _cancelButton.Text = SR.GetString(SR.Wizard_CancelButton);
            _nextButton.Text = SR.GetString(SR.Wizard_NextButton); 
            _previousButton.Text = SR.GetString(SR.Wizard_PreviousButton);
            _finishButton.Text = SR.GetString(SR.Wizard_FinishButton);
        }
 
        /// 
        /// Goes to the next panel in the wizard. 
        ///  
        public void NextPanel() {
            WizardPanel currentPanel = _panelHistory.Peek(); 
            if (currentPanel.OnNext()) {
                currentPanel.Hide();
                WizardPanel nextPanel = currentPanel.NextPanel;
                if (nextPanel != null) { 
                    RegisterPanel(nextPanel);
                    _panelHistory.Push(nextPanel); 
                    OnPanelChanging(new WizardPanelChangingEventArgs(currentPanel)); 
                    ShowPanel(nextPanel);
                } 
            }
        }

        ///  
        /// Click event handler for the Cancel button.
        ///  
        protected virtual void OnCancelButtonClick(object sender, System.EventArgs e) { 
            DialogResult = DialogResult.Cancel;
            Close(); 
        }

        /// 
        /// Raises the InitialActivated event. 
        /// 
        protected override void OnInitialActivated(EventArgs e) { 
            base.OnInitialActivated(e); 

            if (_initialPanel != null) { 
                RegisterPanel(_initialPanel);
                _panelHistory.Push(_initialPanel);
                ShowPanel(_initialPanel);
            } 
        }
 
        ///  
        /// Click event handler for the Finish button.
        ///  
        protected virtual void OnFinishButtonClick(object sender, System.EventArgs e) {
            WizardPanel currentPanel = _panelHistory.Peek();
            if (currentPanel.OnNext()) {
                // Call OnComplete for every panel on the stack 
                WizardPanel[] panels = _panelHistory.ToArray();
                Array.Reverse(panels); 
                foreach (WizardPanel panel in panels) { 
                    panel.OnComplete();
                } 

                DialogResult = DialogResult.OK;
                Close();
           } 
        }
 
        ///  
        /// Click event handler for the Next button.
        ///  
        protected virtual void OnNextButtonClick(object sender, System.EventArgs e) {
            NextPanel();
        }
 
        /// 
        /// Called when a panel is about to change. 
        ///  
        protected virtual void OnPanelChanging(WizardPanelChangingEventArgs e) {
        } 

        /// 
        /// Click event handler for the Previous button.
        ///  
        protected virtual void OnPreviousButtonClick(object sender, System.EventArgs e) {
            PreviousPanel(); 
        } 

        ///  
        /// Goes to the back panel in the wizard.
        /// 
        public void PreviousPanel() {
            if (_panelHistory.Count > 1) { 
                WizardPanel currentPanel = _panelHistory.Pop();
                WizardPanel backPanel = _panelHistory.Peek(); 
                currentPanel.OnPrevious(); 
                currentPanel.Hide();
                OnPanelChanging(new WizardPanelChangingEventArgs(currentPanel)); 
                ShowPanel(backPanel);
            }
        }
 
        /// 
        /// Registers a panel for use in this wizard. 
        ///  
        internal void RegisterPanel(WizardPanel panel) {
            if (!TaskPanel.Controls.Contains(panel)) { 
                panel.Dock = DockStyle.Fill;
                panel.SetParentWizard(this);
                panel.Hide();
                TaskPanel.Controls.Add(panel); 
            }
        } 
 
        /// 
        /// Initializes a WizardForm to use an ordered array of panels. 
        /// 
        protected void SetPanels(WizardPanel[] panels) {
            if ((panels != null) && (panels.Length > 0)) {
                RegisterPanel(panels[0]); 
                _initialPanel = panels[0];
 
                for (int i = 0; i < panels.Length - 1; i++) { 
                    RegisterPanel(panels[i+1]);
                    panels[i].NextPanel = panels[i + 1]; 
                }
            }
        }
 
        /// 
        /// Shows the panel specified by the given index. 
        ///  
        private void ShowPanel(WizardPanel panel) {
            if (_panelHistory.Count == 1) { 
                // If we're on the first panel, disable the back button
                PreviousButton.Enabled = false;
            }
            else { 
                // Otherwise, enable it
                PreviousButton.Enabled = true; 
            } 

            if (panel.NextPanel == null) { 
                // If we're on the last panel, change the button text
                NextButton.Enabled = false;
            }
            else { 
                NextButton.Enabled = true;
            } 
 
            // Show the specified panel
            panel.Show(); 

            // Set the description and caption of the task bar
            AccessibleDescription = panel.Caption;
            CaptionLabel.Text = panel.Caption; 

            if (IsHandleCreated) { 
                // Refresh the screen 
                Invalidate();
            } 

            // Focus the newly shown panel
            panel.Focus();
        } 
    }
} 
 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

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