Provides access to members that control a simple set of objects.
Description
The ISet interface provides properties and methods for adding objects, removing objects, and sequentially accessing objects in a Set.
When To Use
The Set object holds a collection of homogeneous or heterogeneous objects.
Members
| Name | Description | |
|---|---|---|
 |
Add | Adds an object to the set. |
 |
Count | The element count of the set. |
|
Find | Searches for the object in the set. |
|
Next | Obtains the next object in the set. |
|
Remove | Removes the object from the set. |
|
RemoveAll | Removes all objects from the set. |
|
Reset | Resets the set for enumerating through the objects with Next. |
ISet.Add Method
Adds an object to the set.
Public Sub Add ( _
ByVal unk As Object _
)
public void Add (
object unk
);
Description
Adds the specified object to the Set. If you add the same object to a Set twice, no error occurs but the resulting Set has only one reference to the object.
Remarks
The order in which objects are added to the Set using Add is not guaranteed to be the same order in which they are returned by the Next method.
When adding an object to a Set, you are merely adding a new reference to the object not copying it. The reference is released when the Set is destroyed or the object is removed. For example, if you add geodatabase features to a Set (or an Array) using a feature cursor, you must use a non-recycling cursor, otherwise the memory location of the previous feature is overwritten.
ISet.Count Property
The element count of the set.
Public ReadOnly Property Count As Integer
public int Count {get;}
Description
Returns the number of objects in the Set.
ISet.Find Method
Searches for the object in the set.
Public Function Find ( _
ByVal unk As Object _
) As Boolean
public bool Find (
object unk
);
Description
Indicates whether a reference to the specified object has been added to the Set with the Add method.
ISet.Next Method
Obtains the next object in the set.
Public Function Next ( _
) As Object
public object Next (
);
Description
The Next method returns the next object in the Set.
Remarks
The order that objects are returned from the Set object using the Next method is not guaranteed to be the same order as they were passed into the Add method. However, the Next method will return the objects in the same order.
ISet.Remove Method
Removes the object from the set.
Public Sub Remove ( _
ByVal unk As Object _
)
public void Remove (
object unk
);
Description
Removes the reference to the specified object from the Set.
ISet.RemoveAll Method
Removes all objects from the set.
Public Sub RemoveAll ( _
)
public void RemoveAll (
);
Description
Removes all references to objects from the Set.
ISet.Reset Method
Resets the set for enumerating through the objects with Next.
Public Sub Reset ( _
)
public void Reset (
);
Description
The Reset method resets the Set so that the next call to the Next method returns the first object in the Set.
Remarks
The order that objects are returned from the Set object using the Next method is not guaranteed to be the same order as they were passed into the Add method. However, the Next method will return the objects in the same order.
Classes that implement ISet
| Classes | Description |
|---|---|
| Set | Generic set of objects. |