IndexOf Method
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ActiveDirectoryRoleCollection.IndexOf Method (ActiveDirectoryRole)


Returns the index of the first occurrence of the specified ActiveDirectoryRole object in this collection.

Namespace:   System.DirectoryServices.ActiveDirectory
Assembly:  System.DirectoryServices (in System.DirectoryServices.dll)

public int IndexOf(
	ActiveDirectoryRole role


Type: System.DirectoryServices.ActiveDirectory.ActiveDirectoryRole

The ActiveDirectoryRole object to search for in this collection.

Return Value

Type: System.Int32

The zero-based index of the first matching object. Returns -1 if no member of this collection is identical to the ActiveDirectoryRole object.

Exception Condition

A call to the underlying directory service resulted in an error.


role is null.

.NET Framework
Available since 2.0
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