1. Drag ContextMenuStripEx from toolbox to form
   (appears in component tray)
2. Click "Type Here" to add menu items
3. Select item type (MenuItem, TextBox, ComboBox, Separator)
4. Configure item properties in Properties panel
5. Right-click target control → Properties → ContextMenuStrip
6. Select the ContextMenuStripEx instance

using Syncfusion.Windows.Forms.Tools;
using System.Windows.Forms;

// Declarations
private ContextMenuStripEx contextMenuStripEx;
private ToolStripMenuItem menuItemCut;
private ToolStripMenuItem menuItemCopy;
private ToolStripMenuItem menuItemPaste;
private RichTextBox richTextBox1;

// Initialization
private void InitializeContextMenu()
{
    // Create context menu
    this.contextMenuStripEx = new ContextMenuStripEx();
    
    // Create menu items
    this.menuItemCut = new ToolStripMenuItem();
    this.menuItemCopy = new ToolStripMenuItem();
    this.menuItemPaste = new ToolStripMenuItem();
    
    // Configure menu items
    this.menuItemCut.Text = "Cut";
    this.menuItemCut.ShortcutKeys = Keys.Control | Keys.X;
    this.menuItemCut.Click += MenuItemCut_Click;
    
    this.menuItemCopy.Text = "Copy";
    this.menuItemCopy.ShortcutKeys = Keys.Control | Keys.C;
    this.menuItemCopy.Click += MenuItemCopy_Click;
    
    this.menuItemPaste.Text = "Paste";
    this.menuItemPaste.ShortcutKeys = Keys.Control | Keys.V;
    this.menuItemPaste.Click += MenuItemPaste_Click;
    
    // Add items to context menu
    this.contextMenuStripEx.Items.AddRange(new ToolStripItem[] {
        this.menuItemCut,
        this.menuItemCopy,
        this.menuItemPaste
    });
    
    // Associate with control
    this.richTextBox1 = new RichTextBox();
    this.richTextBox1.ContextMenuStrip = this.contextMenuStripEx;
    this.Controls.Add(this.richTextBox1);
}

// Event handlers
private void MenuItemCut_Click(object sender, EventArgs e)
{
    richTextBox1.Cut();
}

private void MenuItemCopy_Click(object sender, EventArgs e)
{
    richTextBox1.Copy();
}

private void MenuItemPaste_Click(object sender, EventArgs e)
{
    richTextBox1.Paste();
}

private void CreateEditContextMenu()
{
    var contextMenu = new ContextMenuStripEx();
    
    var cutItem = new ToolStripMenuItem("Cut", null, (s, e) => textBox.Cut());
    cutItem.ShortcutKeys = Keys.Control | Keys.X;
    
    var copyItem = new ToolStripMenuItem("Copy", null, (s, e) => textBox.Copy());
    copyItem.ShortcutKeys = Keys.Control | Keys.C;
    
    var pasteItem = new ToolStripMenuItem("Paste", null, (s, e) => textBox.Paste());
    pasteItem.ShortcutKeys = Keys.Control | Keys.V;
    
    contextMenu.Items.AddRange(new ToolStripItem[] {
        cutItem, copyItem, pasteItem
    });
    
    textBox.ContextMenuStrip = contextMenu;
}

private void CreateMultiLevelMenu()
{
    var contextMenu = new ContextMenuStripEx();
    
    // Parent menu item with submenus
    var newMenuItem = new ToolStripMenuItem("New");
    
    // Submenu items
    var newDocItem = new ToolStripMenuItem("New Document");
    var newProjectItem = new ToolStripMenuItem("New Project");
    var newFileItem = new ToolStripMenuItem("New File");
    
    // Add submenus to parent
    newMenuItem.DropDownItems.AddRange(new ToolStripItem[] {
        newDocItem, newProjectItem, newFileItem
    });
    
    // Add to context menu
    contextMenu.Items.Add(newMenuItem);
    
    control.ContextMenuStrip = contextMenu;
}

private void CreateDynamicCheckedMenu()
{
    var contextMenu = new ContextMenuStripEx();
    
    var boldItem = new ToolStripMenuItem("Bold");
    boldItem.CheckOnClick = true;
    boldItem.Checked = false;
    boldItem.Click += (s, e) => {
        var item = s as ToolStripMenuItem;
        // Apply bold formatting based on checked state
        ApplyBoldFormatting(item.Checked);
    };
    
    var italicItem = new ToolStripMenuItem("Italic");
    italicItem.CheckOnClick = true;
    italicItem.Checked = false;
    
    var underlineItem = new ToolStripMenuItem("Underline");
    underlineItem.CheckOnClick = true;
    underlineItem.Checked = false;
    
    contextMenu.Items.AddRange(new ToolStripItem[] {
        boldItem, italicItem, underlineItem
    });
    
    richTextBox.ContextMenuStrip = contextMenu;
}

private void CreateMixedItemMenu()
{
    var contextMenu = new ContextMenuStripEx();
    
    // Menu item
    var searchItem = new ToolStripMenuItem("Search");
    
    // TextBox for input
    var searchBox = new ToolStripTextBox();
    searchBox.Text = "Enter search term...";
    
    // Separator
    var separator = new ToolStripSeparator();
    
    // ComboBox for options
    var filterCombo = new ToolStripComboBox();
    filterCombo.Items.AddRange(new object[] { "All", "Documents", "Images" });
    filterCombo.SelectedIndex = 0;
    
    // Add all items
    contextMenu.Items.AddRange(new ToolStripItem[] {
        searchItem, searchBox, separator, filterCombo
    });
    
    control.ContextMenuStrip = contextMenu;
}

private void UpdateMenuItemStates()
{
    // Enable/disable based on application state
    menuItemCut.Enabled = textBox.SelectionLength > 0;
    menuItemCopy.Enabled = textBox.SelectionLength > 0;
    menuItemPaste.Enabled = Clipboard.ContainsText();
}

private void ContextMenu_Opening(object sender, CancelEventArgs e)
{
    // Update states before menu opens
    UpdateMenuItemStates();
}

// Subscribe to Opening event
contextMenuStripEx.Opening += ContextMenu_Opening;