CheckedListBox.CheckedIndexCollection.IList.Add(Object) Method
Important
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Adds an item to the CheckedListBox.CheckedIndexCollection. For a description of this member, see Add(Object).
This API supports the product infrastructure and is not intended to be used directly from your code.
virtual int System.Collections.IList.Add(System::Object ^ value) = System::Collections::IList::Add;int IList.Add(object value);int IList.Add(object? value);abstract member System.Collections.IList.Add : obj -> int
override this.System.Collections.IList.Add : obj -> intFunction Add (value As Object) As Integer Implements IList.Add- value
- Object
The object to be added to the CheckedListBox.CheckedIndexCollection.
The position into which the new element was inserted, or -1 to indicate that the item was not inserted into the collection.
Always thrown.
You cannot change the CheckedListBox.CheckedIndexCollection class directly. To add an item to the CheckedListBox.CheckedIndexCollection, use the SetItemChecked or SetItemCheckState method.
| Product | Versions |
|---|---|
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9, 10 |
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