Implemented interface member:
2 references to IndexOf
System.Windows.Forms (1)
System\Windows\Forms\Controls\ListBoxes\CheckedListBox.CheckedItemCollection.cs (1)
98return IndexOf(item) != -1;
System.Windows.Forms.Tests (1)
System\Windows\Forms\CheckedListBox.CheckedItemCollectionTests.cs (1)
85_collection.IndexOf(item).Should().Be(expected);