[Mono-osx] MonoMac sheets not attached to docWindow on first open

Uli Hertlein uli at xdt.com.au
Mon Dec 19 22:16:06 EST 2011

FYI: Fixed by settings the NSPanel 'VisibleAtLaunch' property to false.

On 19/12/2011 13:05, Uli Hertlein wrote:
> Hi guys,
> this might be more of a pure Cocoa question than anything, but since I'm
> writing this in C#/MonoMac it applies here as well and I'm hoping for
> some expert insight.
> I have a MainWindowController (with an NSWindow from .xib) and a
> EditWindowController (with an NSPanel from another .xib) that's supposed
> to slide over the main window as a sheet/modal dialog.
> To begin/show the edit sheet I'm calling:
>    NSApplication.SharedApplication.BeginSheet(editPanelWindow,
> mainDocWindow, selector, 0);
> and close it with:
>    editPanelWindow.OrderOut(sender);
>    NSApplication.SharedApplication.EndSheet(editPanelWindow, returnCode);
> where editPanelWindow is the NSPanel and mainDocWindow is the main window.
> The first time the editPanelWindow pops-up almost randomly on the
> screen, not attached to the mainWindow.  Oddly enough after closing and
> re-opening the NSPanel it nicely slides out of the mainWindow title bar
> and is in the right location.
> It feels like there's some setup taking place as part of the
> BeginSheet/EndSheet that I'm missing but the docs/tutorials/etc aren't
> helpful...
> Cheers,
> /uli

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