2 writes to TopLevel
PresentationUI (1)
MS\Internal\Documents\SigningProgress.Designer.cs (1)
67TopLevel = true;
System.Windows.Forms.Design (1)
System\Windows\Forms\Design\DesignerFrame.cs (1)
100form.TopLevel = false;
25 references to TopLevel
System.Windows.Forms (19)
System\Windows\Forms\Control.cs (1)
7462if (this is Form form && form.TopLevel)
System\Windows\Forms\Form.ControlCollection.cs (1)
33if (!_owner.TopLevel && !_owner.DesignMode)
System\Windows\Forms\Form.cs (17)
765else if (TopLevel) 771if (TopLevel && (_formState[s_formStateLayered] != 0)) 819if (TopLevel || IsMdiChild) 1633if (value is not null && !TopLevel) 1766if (!TopLevel && !DesignMode) 2063if (IsHandleCreated && TopLevel) 3399if (!TopLevel || IsMdiContainer) 3405if (!ShowInTaskbar && OwnerInternal is null && TopLevel) 3896if (!TopLevel) 3956if (TopLevel) 4966if (TopLevel && IsHandleCreated) 5125if (TopLevel) 5458if (!TopLevel) 5679if (!TopLevel) 6113if (IsHandleCreated && TopLevel) 6139if ((_formState[s_formStateLayered] != 0) && IsHandleCreated && TopLevel) 6658if (TopLevel && (si.dwFlags & STARTUPINFOW_FLAGS.STARTF_USESHOWWINDOW) != 0)
System.Windows.Forms.Design (5)
System\Windows\Forms\Design\DocumentDesigner.cs (2)
852|| (cd.Control is Form form && form.TopLevel); 899&& !(ce.Component is Form form && form.TopLevel);
System\Windows\Forms\Design\OleDragDropHandler.CfCodeToolboxItem.cs (1)
107if (component is Control { Parent: null } childControl and not Form { TopLevel: true }) // Don't add top-level forms
System\Windows\Forms\Design\ParentControlDesigner.cs (2)
456&& host.GetDesigner(newChild) as ControlDesigner is not null && !(newChild is Form form && form.TopLevel)) 2393if (c is not Form form || !form.TopLevel)
WindowsFormsIntegration (1)
System\Windows\Integration\WindowsFormsHost.cs (1)
315if (form.TopLevel)