10 references to Union
System.Drawing.Common.Tests (6)
System\Drawing\RegionTests.cs (6)
1685region.Union(other); 1699region.Union(other); 1708AssertExtensions.Throws<ArgumentNullException>("region", () => region.Union((Region)null)); 1715AssertExtensions.Throws<ArgumentException>(null, () => region.Union(CreateDisposedRegion())); 1722Assert.Throws<InvalidOperationException>(() => region.Union(region)); 1801AssertExtensions.Throws<ArgumentException>(null, () => disposedRegion.Union(disposedRegion));
System.Windows.Forms (1)
System\Windows\Forms\ErrorProvider\ErrorProvider.ErrorWindow.cs (1)
344windowRegion.Union(iconRegion.Region);
System.Windows.Forms.Design (3)
System\Windows\Forms\Design\Behavior\DropSourceBehavior.cs (1)
808invalidDragRegion.Union(invalidRegion);
System\Windows\Forms\Design\SelectionUIService.cs (1)
833region.Union(item.GetRegion());
System\Windows\Forms\Design\ToolStripDesignerUtils.cs (1)
471invalidateRegion.Union(itemRegion);