ImageGear .NET - Updated
Creating Context Menu Items
User Guide > How to Work with... > Common Operations > Viewing > Viewing Using ASP.NET > Displaying Images Using ASP.NET > Context Menu Customization > Creating Context Menu Items

You can also add your own menu items. Additionally, the user specific menu items can be set to use checkboxes and radio buttons.

There are two ways to create a ContextMenuItem. You can do it explicitly or implicitly.

The explicit way assumes the use of the constructor and is a more formal way, requiring all members to be specified explicitly:

Example
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var contextMenuItem = new ImageGear.Web.UI.ContextMenuItem
    (ImageGear.Web.UI.ContextMenuItemType.Popup, 'Some group of items',
    precreatedContextMenu, null, null, null);

The implicit way is less strict and is based on the Javascript object notation (JSON):

Example
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 var contextMenuItem = {
     type: ImageGear.Web.UI.ContextMenuItemType.Popup,
     text: 'Some group of items',
     items: precreatedContextMenu
  };