8 references to IsEmpty
System.Windows.Forms (8)
System\Windows\Forms\Accessibility\AccessibleObject.cs (2)
1019
Debug.Assert(result.
IsEmpty
|| result.vt == VARENUM.VT_I4);
2804
childID.
IsEmpty
System\Windows\Forms\ComponentModel\COM2Interop\COM2FontConverter.cs (2)
27
Debug.Assert(nativeValue.
IsEmpty
, $"Expected IUnknown, got {nativeValue.Type}");
82
Debug.Assert(nativeValue.
IsEmpty
, $"Expected IUnknown, got {nativeValue.Type}");
System\Windows\Forms\ComponentModel\COM2Interop\COM2PictureConverter.cs (1)
37
Debug.Assert(nativeValue.
IsEmpty
, $"Expected IUnknown, got {nativeValue.Type}");
System\Windows\Forms\ComponentModel\COM2Interop\COM2PropertyDescriptor.cs (1)
641
if (ConvertingNativeType && !nativeValue.
IsEmpty
)
System\Windows\Forms\Controls\ListView\ListViewItem.ListViewItemBaseAccessibleObject.cs (1)
192
return result.
IsEmpty
? VARIANT.False : result;
System\Windows\Forms\Controls\TextBox\TextBoxBase.TextBoxBaseUiaTextProvider.cs (1)
172
*isActive = !hasKeyboardFocus.
IsEmpty
&& (bool)hasKeyboardFocus;