ListViewGroupCollection::Contains Method (ListViewGroup^)
.NET Framework (current version)
Determines whether the specified group is located in the collection.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Parameters
- value
-
Type:
System.Windows.Forms::ListViewGroup^
The ListViewGroup to locate in the collection.
You cannot add a ListViewGroup to the collection more than once. However, attempting to add another copy will not throw an exception. Instead, the addition will simply fail. The Add method will return a value of –1 in this case. The AddRange and Insert methods, however, do not have return values. When adding groups using one of these methods, use the Contains method to determine whether a particular ListViewGroup is already in the collection.
.NET Framework
Available since 2.0
Available since 2.0
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