79 references to Empty
System.Private.Windows.Core (1)
Windows\Win32\System\Variant\VARIANT.cs (1)
982
return
Empty
;
System.Windows.Forms (35)
System\Windows\Forms\Accessibility\AccessibleObject.cs (19)
452
return VARIANT.
Empty
;
459
return VARIANT.
Empty
;
520
return VARIANT.
Empty
;
527
return VARIANT.
Empty
;
610
/// <returns>The requested value if supported or <see cref="VARIANT.
Empty
"/> if it is not.</returns>
615
UIA_PROPERTY_ID.UIA_AutomationIdPropertyId => AutomationId is null ? VARIANT.
Empty
: (VARIANT)AutomationId,
637
UIA_PROPERTY_ID.UIA_LegacyIAccessibleDefaultActionPropertyId => !string.IsNullOrEmpty(DefaultAction) ? (VARIANT)DefaultAction : VARIANT.
Empty
,
638
UIA_PROPERTY_ID.UIA_LegacyIAccessibleNamePropertyId => !string.IsNullOrEmpty(Name) ? (VARIANT)Name : VARIANT.
Empty
,
641
UIA_PROPERTY_ID.UIA_NamePropertyId => Name is null ? VARIANT.
Empty
: (VARIANT)Name,
645
UIA_PROPERTY_ID.UIA_ValueValuePropertyId => !string.IsNullOrEmpty(Value) ? (VARIANT)Value : VARIANT.
Empty
,
646
_ => VARIANT.
Empty
1612
return VARIANT.
Empty
;
1625
return VARIANT.
Empty
;
1671
*pvarChild = VARIANT.
Empty
;
1775
*pvarEndUpAt = VARIANT.
Empty
;
2314
*pvarRole = count == 0 ? VARIANT.
Empty
: (VARIANT)(int)SystemIAccessible.TryGetRole(varChild);
2348
*pvarChildren = VARIANT.
Empty
;
2388
*pvarState = SystemIAccessible?.TryGetState(varChild) is { } state ? (VARIANT)(int)state : VARIANT.
Empty
;
2665
return VARIANT.
Empty
;
System\Windows\Forms\ComponentModel\COM2Interop\COM2FontConverter.cs (3)
74
return VARIANT.
Empty
;
83
return VARIANT.
Empty
;
103
return VARIANT.
Empty
;
System\Windows\Forms\ComponentModel\COM2Interop\COM2PictureConverter.cs (3)
94
return VARIANT.
Empty
;
117
return VARIANT.
Empty
;
132
return VARIANT.
Empty
;
System\Windows\Forms\ComponentModel\COM2Interop\COM2PropertyDescriptor.cs (3)
605
return VARIANT.
Empty
;
616
return VARIANT.
Empty
;
625
return VARIANT.
Empty
;
System\Windows\Forms\Controls\DataGridView\DataGridView.DataGridViewEditingPanelAccessibleObject.cs (1)
79
: VARIANT.
Empty
,
System\Windows\Forms\Controls\ToolStrips\ToolStripMenuItem.ToolStripMenuItemAccessibleObject.cs (3)
52
UIA_PROPERTY_ID.UIA_AcceleratorKeyPropertyId => _owningToolStripMenuItem.GetShortcutText() is { } shortcutText ? (VARIANT)shortcutText : VARIANT.
Empty
,
53
UIA_PROPERTY_ID.UIA_PositionInSetPropertyId => GetPositionInSet() is { } position ? (VARIANT)position : VARIANT.
Empty
,
54
UIA_PROPERTY_ID.UIA_SizeOfSetPropertyId => GetSizeOfSet() is { } size ? (VARIANT)size : VARIANT.
Empty
,
System\Windows\Forms\Controls\WebBrowser\HtmlDocument.cs (2)
481
htmlDoc2.Value->open(url, name, VARIANT.
Empty
, VARIANT.
Empty
, dispatch).ThrowOnFailure();
System\Windows\Forms\Controls\WebBrowser\HtmlToClrEventProxy.cs (1)
147
*result = VARIANT.
Empty
;
System.Windows.Forms.Interop.Tests (1)
AccessibleObjectTests.cs (1)
104
Assert.Equal(VARIANT.
Empty
, variant);
System.Windows.Forms.Primitives.Tests (1)
System\Windows\Forms\Automation\UiaTextRangeTests.cs (1)
406
Assert.True(((ITextRangeProvider.Interface)textRange).FindAttribute(textAttributeIdentifier, VARIANT.
Empty
, backward, actual).Succeeded);
System.Windows.Forms.Tests (41)
System\Windows\Forms\AccessibleObjects\AccessibleObjectTests.cs (1)
2690
Assert.Equal(VARIANT.
Empty
, accessibleObject.GetPropertyValue((UIA_PROPERTY_ID)propertyId));
System\Windows\Forms\AccessibleObjects\CategoryGridEntryAccessibleObjectTests.cs (1)
187
Assert.Equal(VARIANT.
Empty
, accessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
System\Windows\Forms\AccessibleObjects\ColumnHeader.ListViewColumnHeaderAccessibleObjectTests.cs (1)
40
Assert.Equal(VARIANT.
Empty
, accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_LegacyIAccessibleDefaultActionPropertyId));
System\Windows\Forms\AccessibleObjects\ComboBox.ComboBoxAccessibleObjectTests.cs (2)
115
Assert.Equal(VARIANT.
Empty
, comboBox.AccessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_NamePropertyId));
116
Assert.Equal(VARIANT.
Empty
, comboBox.AccessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_LegacyIAccessibleNamePropertyId));
System\Windows\Forms\AccessibleObjects\ComboBox.ComboBoxItemAccessibleObjectTests.cs (1)
230
Assert.Equal(VARIANT.
Empty
, itemAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
System\Windows\Forms\AccessibleObjects\Control.ControlAccessibleObjectTests.cs (2)
223
Assert.Equal(VARIANT.
Empty
, accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_LegacyIAccessibleDefaultActionPropertyId));
1397
Assert.Equal(VARIANT.
Empty
, controlAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_NamePropertyId));
System\Windows\Forms\AccessibleObjects\DataGridView.DataGridViewEditingPanelAccessibleObjectTests.cs (1)
121
Assert.Equal(VARIANT.
Empty
, editingPanel.AccessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
System\Windows\Forms\AccessibleObjects\DataGridViewAccessibleObjectTests.cs (1)
1689
Assert.Equal(VARIANT.
Empty
, actual);
System\Windows\Forms\AccessibleObjects\DataGridViewCellAccessibleObjectTests.cs (1)
162
Assert.Equal(VARIANT.
Empty
, accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_LegacyIAccessibleDefaultActionPropertyId));
System\Windows\Forms\AccessibleObjects\DateTimePicker.DateTimePickerAccessibleObjectTests.cs (1)
100
Assert.Equal(VARIANT.
Empty
, actual);
System\Windows\Forms\AccessibleObjects\DomainUpDownAccessibleObjectTests.cs (1)
108
Assert.Equal(VARIANT.
Empty
, actual);
System\Windows\Forms\AccessibleObjects\ErrorProvider.ControlItem.ControlItemAccessibleObjectTests.cs (2)
178
Assert.Equal(VARIANT.
Empty
, accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
179
Assert.Equal(VARIANT.
Empty
, accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_LegacyIAccessibleDefaultActionPropertyId));
System\Windows\Forms\AccessibleObjects\ErrorProvider.ErrorWindow.ErrorWindowAccessibleObjectTests.cs (2)
74
Assert.Equal(VARIANT.
Empty
, accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
75
Assert.Equal(VARIANT.
Empty
, accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_LegacyIAccessibleDefaultActionPropertyId));
System\Windows\Forms\AccessibleObjects\GroupBoxAccessibleObjectTests.cs (2)
20
Assert.Equal(VARIANT.
Empty
, groupBoxAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_NamePropertyId));
21
Assert.Equal(VARIANT.
Empty
, groupBoxAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_LegacyIAccessibleNamePropertyId));
System\Windows\Forms\AccessibleObjects\ListBox.ListBoxItemAccessibleObjectTests.cs (1)
61
Assert.Equal(VARIANT.
Empty
, actual);
System\Windows\Forms\AccessibleObjects\ListBoxAccessibleObjectTests.cs (1)
93
Assert.Equal(VARIANT.
Empty
, accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
System\Windows\Forms\AccessibleObjects\ListViewGroup.ListViewGroupAccessibleObjectTests.cs (1)
108
Assert.Equal(VARIANT.
Empty
, groupAccessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
System\Windows\Forms\AccessibleObjects\ListViewItem.ListViewItemBaseAccessibleObjectTests.cs (1)
276
Assert.Equal(VARIANT.
Empty
, item.AccessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
System\Windows\Forms\AccessibleObjects\MaskedTextBox.MaskedTextBoxAccessibleObjectTests.cs (1)
89
Assert.Equal(VARIANT.
Empty
, actual);
System\Windows\Forms\AccessibleObjects\Panel.PanelAccessibleObjectTests.cs (1)
80
Assert.Equal(VARIANT.
Empty
, actual);
System\Windows\Forms\AccessibleObjects\TabControl.TabControlAccessibleObjectTests.cs (1)
607
Assert.Equal(VARIANT.
Empty
, actual);
System\Windows\Forms\AccessibleObjects\ToolStripItemAccessibleObjectTests.cs (1)
179
Assert.Equal(VARIANT.
Empty
, toolStripItem.AccessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
System\Windows\Forms\AccessibleObjects\ToolStripLabel.ToolStripLabelAccessibleObjectTests.cs (1)
74
Assert.Equal(VARIANT.
Empty
, toolStripLabel.AccessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
System\Windows\Forms\AccessibleObjects\ToolStripMenuItem.ToolStripMenuItemAccessibleObjectTests.cs (6)
126
Assert.Equal(VARIANT.
Empty
, accessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_PositionInSetPropertyId));
147
Assert.Equal(VARIANT.
Empty
, separator.AccessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_PositionInSetPropertyId));
155
Assert.Equal(VARIANT.
Empty
, separator.AccessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_PositionInSetPropertyId));
166
Assert.Equal(VARIANT.
Empty
, accessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_SizeOfSetPropertyId));
187
Assert.Equal(VARIANT.
Empty
, separator.AccessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_SizeOfSetPropertyId));
195
Assert.Equal(VARIANT.
Empty
, separator.AccessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_SizeOfSetPropertyId));
System\Windows\Forms\AccessibleObjects\ToolStripNumericUpDown.ToolStripNumericUpDownAccessibleObjectTests.cs (1)
32
Assert.Equal(VARIANT.
Empty
, toolStripNumericUpDown.Control.AccessibilityObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
System\Windows\Forms\AccessibleObjects\TrackBar.TrackBarAccessibleObjectTests.cs (1)
333
Assert.Equal(VARIANT.
Empty
, actual);
System\Windows\Forms\AccessibleObjects\UpDownBase.UpDownButtons.UpDownButtonsAccessibleObject.DirectionButtonAccessibleObjectTests.cs (1)
46
Assert.Equal(VARIANT.
Empty
, actual);
System\Windows\Forms\AccessibleObjects\UpDownBase.UpDownButtons.UpDownButtonsAccessibleObjectTests.cs (1)
162
Assert.Equal(VARIANT.
Empty
, actual);
System\Windows\Forms\ComboBox.ComboBoxChildEditUiaProviderTests.cs (2)
167
Assert.Equal(VARIANT.
Empty
, accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
173
Assert.Equal(VARIANT.
Empty
, accessibleObject.GetPropertyValue(UIA_PROPERTY_ID.UIA_ValueValuePropertyId));
System\Windows\Forms\PropertyGridInternal\AccessibleObjects\DropDownButton.DropDownButtonAccessibleObjectTests.cs (1)
47
Assert.Equal(VARIANT.
Empty
, actual);