CODEWITHSUNDEEP
c#winformseventskeyboard-shortcutscontextmenu
Mikhail
Mikhail

Reputation: 21749

Handling shortcuts from context menu

I have a Windows Form shown as a model dialog. It has a context menu of class ContextMenuStrip. I set shortcuts to several items in the context menu. But this shortcuts works only when context menu is shown. How to make them work even if the context menu is not activated?

The only way I know is to handle KeyPress event of the form, iterate recursively through all the items in the context menu and compare its ShortcutKeys property with the actual key pressed. If the match, manually call OnClick event for this item. Any better ideas?

Upvotes: 3

Views: 9150

Answers (3)

user2455025
user2455025

Reputation: 39

Use the ToolStripMenuItem.ShortCutKeys property, so that you no need to iterate and call the event handlers.

Sample Code:

ContextMenuStrip _contextMenuStrip = new ContextMenuStrip();
var menuItem = new ToolStripMenuItem("Copy");
menuItem.ShortcutKeys = Keys.Control | Keys.C;
_contextMenuStrip.Items.Add(menuItem);

Upvotes: 4

Mikhail
Mikhail

Reputation: 21749

Finally, I've implemented manual iteration in the KeyPressed event handler:

  Action<ToolStripMenuItem> check_shortcut = null;

  check_shortcut = (node) =>
  {
    if (node.ShortcutKeys == e.KeyData)
    {
      node.PerformClick();
    }
    foreach (ToolStripMenuItem child in node.DropDownItems)
    {
      check_shortcut(child);
    }
  };

  foreach (ToolStripMenuItem item in MyContextMenuStrip.Items)
  {
    check_shortcut(item);
  }

Upvotes: 1

yellow_nimbus
yellow_nimbus

Reputation: 343

Are you opening the ContextMenuStrip in code or is the ContextMenuStrip property of the Form set to the ContextMenuStrip you created? If it's being opened in code, are you able to set the Form property instead? That should let you do the shortcut without having to open the menu first.

Upvotes: 0

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