Form

System\Windows\Forms\ActiveX\AxHost.cs (2)

1937/// the <see cref="GroupBox"/> is contained on a <see cref="Form"/>, then the <see cref="ContainingControl"/> 1938/// property value of the ActiveX control is the <see cref="Form"/>, and the <see cref="Control.Parent"/>

System\Windows\Forms\Application.ComponentThreadContext.cs (1)

282private bool LocalModalMessageLoop(Form? form)

System\Windows\Forms\Application.cs (6)

648foreach (Form f in OpenForms) 1022HashSet<Form> processedForms = new(s_forms.Count); 1027Form? form = s_forms[i]; 1059Form? form = s_forms[^1]; 1344public static void Run(Form mainForm) 1359internal static void RunDialog(Form form)

System\Windows\Forms\Application.ModalApplicationContext.cs (1)

16public ModalApplicationContext(Form modalForm) : base(modalForm)

System\Windows\Forms\Application.ThreadContext.cs (2)

65protected Form? CurrentForm { get; private set; } 722Form? oldForm = CurrentForm;

System\Windows\Forms\ApplicationContext.cs (6)

17private Form? _mainForm; 31public ApplicationContext(Form? mainForm) 52public Form? MainForm 132Debug.Assert(sender is Form); 133Form form = (Form)sender;

System\Windows\Forms\Control.cs (12)

4442Form? lastOwner = null; 4456if (lastParent is Form f) 4458for (Form? form = f; form is not null; form = form.OwnerInternal) 5097public Form? FindForm() 5100while (current is not null and not Form) 5105return (Form?)current; 7462if (this is Form form && form.TopLevel) 8165bool formRTL = ((this is Form || this is MdiClient) && IsMirrored); 8888/// parent. The <see cref="Form"/> class overrides this method to perform actual processing of dialog characters. 8902/// The <see cref="Form"/> class overrides this method to perform actual processing of dialog keys. 9016/// parent. The <see cref="Form"/> class overrides this method to perform actual processing of dialog keys. 10279if (this is Form f)

System\Windows\Forms\Control.Ime.cs (4)

518if (FindForm() is Form form) 534if (FindForm() is Form form) 637Form? appForm = topMostWinformsParent as Form;

System\Windows\Forms\Controls\DataGridView\DataGridView.AccessibleObject.cs (1)

30_isModal ??= this.TryGetOwnerAs(out DataGridView? owner) && owner.TopMostParent is Form { Modal: true };

System\Windows\Forms\Controls\DataGridView\DataGridView.cs (1)

2920=> TopLevelControlInternal is Form parentForm && parentForm.WindowState == FormWindowState.Minimized;

System\Windows\Forms\Controls\PropertyGrid\PropertyGridInternal\GridErrorDialog.cs (1)

314while (parent is not null and not Form)

System\Windows\Forms\Controls\PropertyGrid\PropertyGridInternal\PropertyGridView.cs (1)

4878public DialogResult ShowDialog(Form dialog)

System\Windows\Forms\Controls\ToolStrips\ToolStripManager.cs (9)

164internal static ToolStrip? FindToolStrip(Form owningForm, string toolStripName) 604public static void LoadSettings(Form targetForm) 614public static void LoadSettings(Form targetForm, string key) 627public static void SaveSettings(Form sourceForm) 637public static void SaveSettings(Form sourceForm, string key) 838if (Control.FromHandle(rootWindowOfControl) is Form mainForm && mainForm.IsMdiContainer) 840Form? toolStripForm = topMostToolStrip.FindForm(); 910if (toplevelControl is Form mdiChild && mdiChild.IsMdiChild) 960Form? mainForm = control.FindForm();

System\Windows\Forms\Controls\ToolStrips\ToolStripMenuItem.cs (3)

108internal ToolStripMenuItem(Form mdiForm) 480internal Form? MdiForm => Properties.GetValueOrDefault<Form>(s_propMdiForm);

System\Windows\Forms\Controls\ToolStrips\ToolStripRenderer.cs (1)

1129&& statusStrip.FindForm() is Form f)

System\Windows\Forms\Controls\ToolStrips\ToolStripSettingsManager.cs (3)

15private readonly Form _form; 18internal ToolStripSettingsManager(Form owner, string formKey) 257if (controlsToLookIn[i] is null or Form)

System\Windows\Forms\Controls\Unsupported\MainMenu\MainMenu.cs (1)

45public Form GetForm() => throw null;

System\Windows\Forms\DataBinding\Binding.cs (1)

223if (value is Form form)

System\Windows\Forms\Design\IUIService.cs (1)

44DialogResult ShowDialog(Form form);

System\Windows\Forms\Design\IWindowsFormsEditorService.cs (2)

56/// Shows the specified <see cref="Form"/> as a dialog and returns its result. You should always use this 60DialogResult ShowDialog(Form dialog);

System\Windows\Forms\Dialogs\ThreadExceptionDialog.cs (1)

236Form? activeForm = ActiveForm;

System\Windows\Forms\ErrorProvider\ErrorProvider.cs (1)

671return extendee is Control and not Form;

System\Windows\Forms\Form.AccessibleObject.cs (2)

17internal FormAccessibleObject(Form owner) : base(owner) 39UIA_PROPERTY_ID.UIA_IsDialogPropertyId => (VARIANT)(this.TryGetOwnerAs(out Form? owner) && owner.Modal),

System\Windows\Forms\Form.ControlCollection.cs (3)

13private readonly Form _owner; 20public ControlCollection(Form owner) 48if (value is Form form && form.MdiParentInternal is not null)

System\Windows\Forms\Form.cs (61)

System\Windows\Forms\FormClosedEventArgs.cs (2)

7/// Provides data for <see cref="Form.OnFormClosing"/> and <see cref="Form.OnClosing"/> events.

System\Windows\Forms\FormClosingEventArgs.cs (2)

9/// Provides data for <see cref="Form.OnFormClosing"/> and <see cref="Form.OnClosing"/> events.

System\Windows\Forms\FormCollection.cs (8)

25public virtual Form? this[string? name] 33foreach (Form form in InnerList) 50public virtual Form? this[int index] 54Form? f = null; 58f = (Form?)InnerList[index]; 68internal void Add(Form form) 80internal bool Contains(Form form) 94internal void Remove(Form form)

System\Windows\Forms\FormCornerPreference.cs (2)

9/// Specifies the corner preference for a <see cref="Form"/> which can be 10/// set using the <see cref="Form.FormCornerPreference"/> property.

System\Windows\Forms\Input\InputLanguageChangedEventArgs.cs (1)

9/// Provides data for the <see cref="Form.InputLanguageChanged"/> event.

System\Windows\Forms\Input\InputLanguageChangedEventHandler.cs (1)

7/// Represents a method that will handle the <see cref="Form.InputLanguageChanged"/> event.

System\Windows\Forms\Input\InputLanguageChangingEventArgs.cs (1)

10/// Provides data for the <see cref="Form.InputLanguageChanging"/> event.

System\Windows\Forms\Input\InputLanguageChangingEventHandler.cs (1)

7/// Represents a method that will handle the <see cref="Form.InputLanguageChanging"/> event.

System\Windows\Forms\Internal\WinFormsMetadataUpdateHandler.cs (1)

20foreach (Form openForm in Application.OpenForms)

System\Windows\Forms\Layout\Containers\ContainerControl.cs (4)

363public Form? ParentForm 372if (this is Form) 494Form? f = FindForm(); 555Form? form = FindForm();

System\Windows\Forms\MDI\MDIClient.ControlCollection.cs (2)

44if (value is not Form form || !form.IsMdiChild) 63if (value is Form form)

System\Windows\Forms\MDI\MDIClient.cs (7)

16/// the <see cref="Form.IsMdiContainer"/> property to <see langword="true"/>. 24private readonly List<Form> _children = []; 121public Form[] MdiChildren 219|| ParentInternal is Form { MdiChildrenMinimizedAnchorBottom: false } 243if (Controls[i] is Form child && child.CanRecreateHandle() && child.WindowState == FormWindowState.Minimized) 338Form? childForm = null; 339if (ParentInternal is Form parentInternalAsForm)

System\Windows\Forms\MDI\MDIControlStrip.cs (2)

81Icon icon = !hIcon.IsNull ? Icon.FromHandle(hIcon) : Form.DefaultIcon; 86private bool GetTargetWindowIconVisibility() => _target is not Form formTarget || formTarget.ShowIcon;

System\Windows\Forms\MDI\MDIWindowDialog.cs (4)

12private Form? _active; 29public Form? ActiveChildForm 41public void SetItems(Form? active, Form[] all)

System\Windows\Forms\MDI\MDIWindowDialog.ListItem.cs (2)

10public Form Form { get; } 12public ListItem(Form f)

System\Windows\Forms\MDI\MdiWindowListStrip.cs (6)

11private Form? _mdiParent; 67public void PopulateItems(Form mdiParent, ToolStripMenuItem mdiMergeItem, bool includeSeparator) 78Form[] forms = mdiParent.MdiChildren; 91Form? activeMdiChild = mdiParent.ActiveMdiChild; 161Form[]? forms = _mdiParent?.MdiChildren; 185Form? boundForm = windowListItem.MdiForm;

System\Windows\Forms\Rendering\DpiChangedEventHandler.cs (1)

7/// Represents a method that will handle the <see cref="Form.DpiChanged"/> event.

System\Windows\Forms\SizeGripStyle.cs (1)

7/// Specifies the style of the sizing grip on a <see cref="Form"/>.

System\Windows\Forms\ToolTip\ToolTip.cs (4)

906if (_topLevelControl is not Form topForm || (topForm is not null && !topForm.Modal)) 940if (TopLevelControl is Form baseFrom) 1762Form? baseFrom = tool.FindForm(); 1862Form? baseFrom = tool.FindForm();