public abstract class PlusPakPickerBase : PlusPakControlBase 

using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using GrapeCity.Win.Common;

namespace GrapeCity.Win.PlusPak.SampleCodes_CS
{
    public class GcComboFrameForm : Form
    {
        private TextBox textBox1;
        private ListBox listBox1;
        private ComboBox comboBox1;
        private Label label1;
        private GrapeCity.Win.Containers.GcComboFrame gcComboFrame1;

        private void InitializeComponent()
        {
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.listBox1 = new System.Windows.Forms.ListBox();
            this.comboBox1 = new System.Windows.Forms.ComboBox();
            this.label1 = new System.Windows.Forms.Label();
            this.gcComboFrame1 = new GrapeCity.Win.Containers.GcComboFrame();
            ((System.ComponentModel.ISupportInitialize)(this.gcComboFrame1)).BeginInit();
            this.gcComboFrame1.SuspendLayout();
            this.SuspendLayout();
            // 
            // textBox1
            // 
            this.textBox1.Size = new System.Drawing.Size(160, 23);
            this.textBox1.TabIndex = 0;
            // 
            // listBox1
            // 
            this.listBox1.Location = new System.Drawing.Point(0, 0);
            this.listBox1.Name = "listBox1";
            this.listBox1.Size = new System.Drawing.Size(120, 113);
            this.listBox1.TabIndex = 1;
            // 
            // comboBox1
            // 
            this.comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.comboBox1.FormattingEnabled = true;
            this.comboBox1.Location = new System.Drawing.Point(21, 28);
            this.comboBox1.Name = "comboBox1";
            this.comboBox1.Size = new System.Drawing.Size(107, 21);
            this.comboBox1.TabIndex = 1;
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(22, 9);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(65, 13);
            this.label1.TabIndex = 2;
            this.label1.Text = "Side Button:";
            // 
            // gcComboFrame1
            // 
            this.gcComboFrame1.Location = new System.Drawing.Point(154, 28);
            this.gcComboFrame1.Name = "gcComboFrame1";
            this.gcComboFrame1.Size = new System.Drawing.Size(177, 22);
            this.gcComboFrame1.TabIndex = 0;
            // 
            // GcComboFrameForm
            // 
            this.ClientSize = new System.Drawing.Size(387, 70);
            this.Controls.Add(this.label1);
            this.Controls.Add(this.comboBox1);
            this.Controls.Add(this.gcComboFrame1);
            this.Name = "GcComboFrameForm";
            ((System.ComponentModel.ISupportInitialize)(this.gcComboFrame1)).EndInit();
            this.gcComboFrame1.ResumeLayout(false);
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        public GcComboFrameForm()
        {
            InitializeComponent();

            // Initialize gcComboFram1.
            InitialzeMyGcComboFrame();

            Type[] sideButtonTypes = new Type[] 
            {
                typeof(DropDownButton),
                typeof(SideButton),
                typeof(SpinButton),
                typeof(SymbolButton),
                typeof(ColorPickerButton),
            };

            // Change gcComboFrame1's side button's visible when comboBox1's selected index is changed.
            this.comboBox1.SelectedIndexChanged += new EventHandler(ComboBox1_SelectedIndexChanged);

            // Set up comboBox1 data bind to different types of side buttons.
            this.comboBox1.DisplayMember = "Name";
            this.comboBox1.DataSource = sideButtonTypes;
        }

        // Initialize gcComboFrame1.
        private void InitialzeMyGcComboFrame()
        {
            SetComboFrameContentControl();

            SetComboFrameDropDownControl();

            CreateAndAddComboFrameSideButtons();

            // Set gcComboFrame1's border style and color.
            this.gcComboFrame1.BorderStyle = BorderStyle.FixedSingle;
            this.gcComboFrame1.SingleBorderColor = Color.Black;

            InitializeComboFrameDropDowSettings();

            // Add event hanlder for the ShortcutKeyDown event.
            this.gcComboFrame1.ShortcutKeyDown += new EventHandler<KeyEventArgs>(GcComboFrame1_ShortcutKeyDown);

            // Add some events for gcComboFrame1.
            this.gcComboFrame1.DropDownOpening += new EventHandler<CancelEventArgs>(GcComboFrame1_DropDownOpening);
            this.gcComboFrame1.DropDownOpened += new EventHandler(GcComboFrame1_DropDownOpened);
            this.gcComboFrame1.DropDownClosing += new EventHandler<DropDownClosingEventArgs>(GcComboFrame1_DropDownClosing);
            this.gcComboFrame1.DropDownClosed += new EventHandler<DropDownClosedEventArgs>(GcComboFrame1_DropDownClosed);

            this.gcComboFrame1.DropDownSizeChanged += new EventHandler(GcComboFrame1_DropDownSizeChanged);
        }

        private void CreateAndAddComboFrameSideButtons()
        {
            // Create and add some side buttons for gcComboFrame1.
            SideButtonBase[] sideButtons = new SideButtonBase[] 
            {
                CreateDropDownButton(),
                CreateSideButton(),
                CreateSpinButton(),
                CreateSymbolButton(),
                CreateColorPickerButton()
            };
            this.gcComboFrame1.SideButtons.AddRange(sideButtons);
        }

        private void InitializeComboFrameDropDowSettings()
        {
            // Sets the AutoDropDown to true to open the gcComboFrame1's drop-down window automatically
            // after the control gets focus.
            this.gcComboFrame1.DropDownSettings.AutoDropDown = true;

            // Set drop-down windows's size .
            this.gcComboFrame1.DropDownSettings.Size = new Size(this.gcComboFrame1.Width, 100);

            // Set AllowResize to true to enable user UI resizes the drop-down window by sizing grip.
            this.gcComboFrame1.DropDownSettings.AllowResize = true;

            // Opens the drop-down window from the below-right of gcComboFrame1.
            this.gcComboFrame1.DropDownSettings.DropDownDirection = DropDownDirection.BelowRight;

            // Set the opening and closing animation for the drop-down window.
            this.gcComboFrame1.DropDownSettings.OpeningAnimation = DropDownAnimation.Fade;
            this.gcComboFrame1.DropDownSettings.ClosingAnimation = DropDownAnimation.Fade;

            // Hide the separator between the content of the drop-down window and the resizing grip.
            this.gcComboFrame1.DropDownSettings.ShowSeparator = false;

            // Sets the BorderStyle of the drop-down window.
            this.gcComboFrame1.DropDownSettings.BorderStyle = BorderStyle.FixedSingle;

            // Sets the color of the border of drop-down window.
            this.gcComboFrame1.DropDownSettings.SingleBorderColor = Color.Black;

            // Enables the shadow effect of the drop-down window.
            this.gcComboFrame1.DropDownSettings.ShowShadow = true;
        }

        private void SetComboFrameContentControl()
        {
            // Sets some properties of textBox1 to fit it into the ContentPanel of gcComboFrame1.
            this.textBox1.BorderStyle = System.Windows.Forms.BorderStyle.None;
            this.textBox1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.textBox1.Multiline = true;

            // Set textBox1 as gcComboFram1's content control.
            this.gcComboFrame1.ContentPanel.Controls.Add(this.textBox1);
        }

        private void SetComboFrameDropDownControl()
        {
            // Initialize the listBox1.
            this.listBox1.BorderStyle = BorderStyle.None;
            this.listBox1.Dock = DockStyle.Fill;
            this.listBox1.Items.AddRange(new string[] {
            "item1",
            "item2",
            "item3",
            "item4",
            "item5"});

            // Set listBox1 as gcComboFrame1's drop-down control.
            this.gcComboFrame1.DropDownControl = this.listBox1;
        }

        private void GcComboFrame1_ShortcutKeyDown(object sender, KeyEventArgs e)
        {
            // Forbid the process of Escape for GcComboFrame
            // and after setting the Handled to true, pressing
            // Esc can not close the drop-down window.
            if (e.KeyCode == Keys.Escape)
            {
                e.Handled = true;
            }
        }

        private void GcComboFrame1_DropDownOpening(object sender, CancelEventArgs e)
        {
            // Set the drop-down window's size to a specific size before the drop-down window opens.
            this.gcComboFrame1.DropDownSettings.Size = new Size(this.gcComboFrame1.Width, 100);
        }

        private void GcComboFrame1_DropDownClosing(object sender, DropDownClosingEventArgs e)
        {
            // Set textBox1's Text property to the selected item of listBox1.
            if (this.listBox1.SelectedIndex != -1)
            {
                this.textBox1.Text = this.listBox1.SelectedItem.ToString();
            }

            // Output the reason why the drop-down window is closing.
            this.Text = "CloseReason = " + e.CloseReason.ToString();
        }       

        private void GcComboFrame1_DropDownClosed(object sender, DropDownClosedEventArgs e)
        {
            // Change the SymbolButton's SymbolDirection after drop-down window has closed.
            (this.gcComboFrame1.SideButtons["SymbolButton"] as SymbolButton).SymbolDirection = SymbolDirection.Down;

            // Output the reason why the drop-down window is closed.
            this.Text = "CloseReason = " + e.CloseReason.ToString();
        }

        private void GcComboFrame1_DropDownSizeChanged(object sender, EventArgs e)
        {
            // Output the size of drop-down window to the Text of gcComboFrame1's parent form.
            this.Text = "Drop-down window's size: " + this.gcComboFrame1.DropDownSettings.Size;
        }

        // Use this field to record the image of ColorPickerButton during picking color.
        private Image colorPickerImage = null;

        // Returns a ColorPickerButton instance for gcComboFrame1.
        private SideButtonBase CreateColorPickerButton()
        {
            ColorPickerButton colorPickerButton = new ColorPickerButton();

            // Specify a unique name for this button.
            colorPickerButton.Name = "ColorPickerButton";

            // Set this button not be shown.
            colorPickerButton.Visible = ButtonVisibility.NotShown;

            // Set button's position
            colorPickerButton.Position = ButtonPosition.RightOutside;

            // Set button's width.
            colorPickerButton.ButtonWidth = 25;

            // Add event handlers for the events of this button.
            colorPickerButton.BeginPickColor += new EventHandler(ColorPickerButton_BeginPickColor);
            colorPickerButton.PickingColor += new EventHandler<PickingColorEventArgs>(ColorPickerButton_PickingColor);
            colorPickerButton.EndPickColor += new EventHandler<EndPickColorEventArgs>(ColorPickerButton_EndPickColor);

            return colorPickerButton;
        }

        private void ColorPickerButton_BeginPickColor(object sender, EventArgs e)
        {
            // Clear the text of textBox1.
            this.textBox1.Clear();

            // Record the original image and set the Image property to null.
            ColorPickerButton colorPickerButton = sender as ColorPickerButton;
            colorPickerImage = colorPickerButton.Image;
            colorPickerButton.Image = null;
        }

        private void ColorPickerButton_PickingColor(object sender, PickingColorEventArgs e)
        {
            // Set textBox1's Text property to the picking color.
            this.textBox1.Text = e.Color.ToString();

            // Set ColorPickerButton's background color to the picking color.
            (sender as ColorPickerButton).BackColor = e.Color;
        }

        private void ColorPickerButton_EndPickColor(object sender, EndPickColorEventArgs e)
        {
            // Add the color into listBox1 if the picking of color is succussful.
            if (PickColorResult.OK == e.Result)
            {
                DialogResult result = MessageBox.Show("Do you want to add the color into list box ?", "Picking color successful", MessageBoxButtons.YesNo);
                if (DialogResult.Yes == result)
                {
                    this.listBox1.Items.Add(e.Color.ToString());
                }
            }

            // Clear the text.
            this.textBox1.Clear();

            // Restore the displaying image of ColorPickerButton.
            ColorPickerButton colorPickerButton = sender as ColorPickerButton;
            colorPickerButton.Image = colorPickerImage;

            // Restore the background color of ColorPickerButton.
            colorPickerButton.BackColor = Color.Empty;
            colorPickerButton.UseVisualStyleBackColor = true;
        }

        // Returns a DropDownButton instance for gcComboFrame1.
        private SideButtonBase CreateDropDownButton()
        {
            DropDownButton dropDownButton = new DropDownButton();

            // Specify a unique name for this button.
            dropDownButton.Name = "DropDownButton";

            // Set the width of this button.
            dropDownButton.ButtonWidth = 20;

            // Show this button always.
            dropDownButton.Visible = ButtonVisibility.ShowAlways;

            return dropDownButton;
        }

        // Returns a SideButton instance for gcComboFrame1.
        private SideButtonBase CreateSideButton()
        {
            SideButton sideButton = new SideButton();

            // Specify a unique name for this button.
            sideButton.Name = "SideButton";

            // Set button text.
            sideButton.Text = "Add a item";

            // Set button's width.
            sideButton.ButtonWidth = 70;

            // Set this side button not to show in GcComboFrame.
            sideButton.Visible = ButtonVisibility.NotShown;

            // Set this side button to position at outside of GcComboFrame's right border.
            sideButton.Position = ButtonPosition.RightOutside;

            // Set the fat appearance for this button, and these settings will take effect when 
            // its associated GcComboFrame's FlatStyle is Flat.
            sideButton.FlatAppearance.BorderColor = Color.Red;
            sideButton.FlatAppearance.BorderSize = 2;
            sideButton.FlatAppearance.CheckedBackColor = Color.Blue;
            sideButton.FlatAppearance.MouseDownBackColor = Color.Yellow;
            sideButton.FlatAppearance.MouseOverBackColor = Color.Green;

            sideButton.Click += new EventHandler(SideButton_Click);

            return sideButton;
        }

        // Add a item into listBox1 when SideButton is clicked.
        private void SideButton_Click(object sender, EventArgs e)
        {
            if (this.textBox1.Text != string.Empty)
            {
                this.listBox1.Items.Add(this.textBox1.Text);
                this.textBox1.Clear();
            }
            else
            {
                MessageBox.Show("You must input a string first !");
            }
        }

        // Returns a SymbolButton instance for gcComboFrame1.
        private SideButtonBase CreateSymbolButton()
        {
            SymbolButton symbolButton = new SymbolButton();

            // Specify a unique name for this button.
            symbolButton.Name = "SymbolButton";

            // Specify one kind of symbol and the symbol's direction for this button.
            symbolButton.Symbol = Symbols.DoubleArrow;
            symbolButton.SymbolDirection = SymbolDirection.Down;

            // Set this button not be shown.
            symbolButton.Visible = ButtonVisibility.NotShown;

            // Set button's position.
            symbolButton.Position = ButtonPosition.RightOutside;

            return symbolButton;
        }

        // Show or hide side buttons for gcComboFrame1 when comboBox1's selected index is changed.
        private void ComboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            foreach (SideButtonBase sideButton in this.gcComboFrame1.SideButtons)
            {
                if (sideButton.Name == this.comboBox1.Text)
                {
                    // Shows the side button selected from comboBox1.
                    sideButton.Visible = ButtonVisibility.ShowAlways;
                }
                else
                {
                    // Hides the side button that are not selected from comboBox1.
                    sideButton.Visible = ButtonVisibility.NotShown;
                }
            }

            // Always show the DropDownButton.
            this.gcComboFrame1.SideButtons["DropDownButton"].Visible = ButtonVisibility.ShowAlways;
        }       

        private void Button1_Click(object sender, EventArgs e)
        {
            this.gcComboFrame1.DroppedDown = true;
        }

        private void GcComboFrame1_DropDownOpened(object sender, EventArgs e)
        {
            // Change the SymbolButton's SymbolDirection after drop-down window has opened.
            (this.gcComboFrame1.SideButtons["SymbolButton"] as SymbolButton).SymbolDirection = SymbolDirection.Up;
        }     

        // Returns a SpinButton instance for gcComboFrame1.
        private SideButtonBase CreateSpinButton()
        {
            SpinButton spinButton = new SpinButton();

            // Specify a unique name for this button.
            spinButton.Name = "SpinButton";

            // Set the Interval for spinButton.
            spinButton.Interval = 100;

            spinButton.SpinUp += new EventHandler(SpinButton_SpinUp);
            spinButton.SpinDown += new EventHandler(SpinButton_SpinDown);

            // Not show spinButton in gcComboFrame1.
            spinButton.Visible = ButtonVisibility.NotShown;

            return spinButton;
        }

        // Increase the seleced index of listBox1 when spin is down.
        private void SpinButton_SpinDown(object sender, EventArgs e)
        {
            if (this.listBox1.SelectedIndex < this.listBox1.Items.Count - 1)
            {
                this.listBox1.SelectedIndex += 1;
            }
            else
            {
                this.listBox1.SelectedIndex = this.listBox1.Items.Count - 1;
            }

            this.textBox1.Text = this.listBox1.SelectedItem.ToString();
        }

        // Decrease the seleced index of listBox1 when spin is down.
        private void SpinButton_SpinUp(object sender, EventArgs e)
        {
            if (this.listBox1.SelectedIndex > 0)
            {
                this.listBox1.SelectedIndex -= 1;
            }
            else
            {
                this.listBox1.SelectedIndex = 0;
            }
            this.textBox1.Text = this.listBox1.SelectedItem.ToString();
        }

        [STAThread]
        public static void Main(string[] args)
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new GcComboFrameForm());
        }
    }
}