I have a main menu in an MDI parent form, and it as a main menu.
Now I need to change the first level caption of my first menu item in runtime. How can I do that?
--- Update ---
Sorry. I forgot to tell you that the mainMenu is housed in a TcontrolBar.
I think that is the problem because all answer so far don’t work. I had tried all that before.
But this only occurs for the first level, all other levels change correctly.
Perhaps I'm missing something, but it seems to be very simple:
MainMenu1.Items[0].Caption := '&Hello'; // first top-level item
MainMenu1.Items[1].Caption := '&World'; // second top-level item, etc.
In the Menu Editor (at design time in the IDE), click on the menu you want to change, open the property inspector and change the name to something relevant, i.e MyFirstMenu.
Then in your code, whenever you want to change the menu items caption you can use:
MyFirstMenu.Caption := 'A New Caption';
or if the Main Menu is built dynamically see the answer TOndrej gave above.
[Edit1]
Do you mean you can set the caption successfully on the menu item but do not see the change on the TControlBar?
If you are using the old technique of adding a TToolbar inside of a TControlBar, then adding a tool button for each top menu item, then what you see in the form as top level menu items are actually the tool buttons. Set their caption directly, and everything should work.
Related
Assume the following situation:
FrmBase has a TPanel named PnlClient, align alClient
FrmDescendant inherits from FrmBase
In FrmDescendant I change a PnlClient property
In FrmDescendant I place another control (say another TPanel named PnlDescendant) on PnlClient and align it alClient.PnlDescendant now completely covers PnlClient
I place lots of other components on PnlDescendant, not necessarily aligned, so I'm afraid to change PnlDescendant (e.g. setting align to alNone and resizing) and lose positions
How can I execute 'revert to inherited' for PnlClient?
There's nothing in the main menu, or in the popup menu for the controls in the Structure View...
Currently using Delphi 10.4.1 Sydney
This is easy for a keyboard user like myself:
Click on PnlDescendant in the form editor to make it the focused and selected control.
Press Esc to select its parent, PnlClient.
Press the Menu key on your keyboard to display the context menu of PnlClient. If you have a cheap keyboard without a Menu key, press Shift+F10 instead.
Click on "Revert to Inherited". (Or, much faster: press the menu item's underlined character, probably I.)
(But notice that this will remove PnlDescendant completely. Probably you didn't want that, but that's how it works.)
Trying to get a new style on a ComboBox in FireMonkey (XE2).
But for some odd reason I cannot get the text of a ListBoxItem to show.
What I've tried is the following.
Create a new FireMonkey HD Application.
On the form I've added a ComboBox.
Right click on the ComboBox and select 'Edit custom style'
There I've added the following components
while the original one consist out of the following components
Now it seems to me that I need the TContent object (but I can't seem to find it in the toolpallete)
How can i bind my Text object to the strings that are placed in my ComboBox?
Any pointers are very welcome.
FireMonkey doesn't use a TText object to display the text. Instead it creates a copy of the list box item within the TContent (if I remember correctly).
As you've worked out you need to add a TContent to your form. The easy way to do this is to
go back to the form,
right click and select View as Text
Find the TStyleBook object and add a TContent at the appropriate point (the format for this should be obvious from the rest of the file).
No need to add any properties - defaults will be used the first time.
Right click, View as Form.
Go back into the style editor and edit away.
Using: Delphi XE3, VCL Forms application
I have a menu containing a sub-menu in a ActionMainMenuBar. How can I via code:
disable the menu
disable the sub-menu
Create a 'TAction' per menu/submenu that you want to enable disable. Do not assign them to any category.
Create an 'OnExecute' event handler for these actions, so that these can be enabled. You don't have to put any code in the handler, a comment ('//') is enough for the IDE to not to delete the handlers.
Select the 'TActionClient' that represents the menu/submenu from the form designer, just click on the item.
Assign one of the actions to its 'Action' property in the object inspector.
Enable/disable the action associated with the 'TActionClient' that represents the menu/submenu at run time for the menu/submenu to be enabled/disabled accordingly.
By using the 'enabled' property of the menu? or the menu-item that is the starting point of the submenu...
You can actually disable it at runtime (in Delphi 7 anyway) if you know the index of the top-level menu item for the category as follows:
ActionMainMenuBar.ActionControls[2].Enabled := False;
ActionControls[2] would be the category showing as a top-level menu item (after dragging the category onto ActionMainMenuBar from ActionManager.
I've got a TMemo with an associated TPopupMenu on a FireMonkey form.
When I rightclick on the memo, I get my own popup menu, but after my popup disappears I still get the default popup (the one that says cut, copy, paste, select all).
How do I disable the default menu, or can I add my own items to the default menu perhaps?
I can't reproduce this behavior. Here's what I tried:
File->New->FireMonkey HD Application
Drop a TMemo and TPopupMenu on the form
Assign PopupMenu to Memo1.PopupMenu in the Object Inspector
Create two menu items in the PopupMenu, and assign them both the same OnClick event (generated in the Object Inspector). I left the default caption of MenuItem1 and MenuItem2 in the Caption of both items.
Wrote a simple MessageDlg that displays TMenuItem(Sender).Caption with a single Ok button in the OnClick handler.
Run the application, right-click Memo1, and choose either menu item
I get a single menu displayed with my two items (MenuItem1 and MenuItem2). Choosing either item displays the appropriate Caption in a message dialog, and clicking Ok in that dialog. There is no default popup menu displayed.
EDIT: Found it for you. This is a bug fixed in Update 3 - see the list of bug fixes in Update 3, and search for 98705, or scroll through until you reach the section on FireMonkey\Components (it's the second or third entry under that section).
I'm trying to use the Action Manager and Action Main Menu Bar in Delphi 2010 an I have no idea how to make this work. I've tried looking at the examples that come with Delphi 2010 and I can't seem to figure this out.
I've tried playing around with the examples. I've been able to add an image to the Image List component and set that item to the new item index. At design time it displays properly at runtime it reverts back to the original.
I'd like to learn how to use the Action Manager and Action Main Menu Bar but I can find any help on these topics. Is there a tutorial on how to use the Action Manager and Action Main Menu Bar?
Drag and drop a ActionManager, a ActionMainMenuBar and a ImageList on your form.
Doubleclick the ImageList, you get the Imagelist Editor. Use the Add-button to add your icons (make sure their sizes are the same as the Height and Width properties that are set in the ImageList-control).
Set the Images-property of the ActionManager to your ImageList and set the ActionManager-property of your ActionMainMenuBar to your ActionManager.
Doubleclick the ActionManager, go to the tab 'Actions' and add new actions by the 'New'-button.
Click each Action in the ActionManager and set each action's properties, at least: ImageIndex (to choose an Icon), Caption and Category.
Note: A Category will serve as a main item in the menu (like File, Edit and View) and each Action will serve as menu item (like Save, Save as, Load). So set the Category property of all actions you want to belong to one main menu item to the same name. For instance give the actions 'Save' and 'Load' the category 'File' and give the actions 'Undo' and 'Redo' the category 'Edit'.
Doubleclick each Action in the ActionManager. You'll get the code editor. Type the code you want to perform when the user clicks this menu item. If you don't type any code or comment, the menu item will automatically be disabled when the application is running.
Now drag the categories from the ActionManager to the ActionMainMenuBar.
That's it.
I think Actions, Action Lists And Action Managers by Brian Long is a great start to explore the realm of actions.