System [00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00] 1.0.3300.0 1.0.5000.0 2.0.0.0 4.0.0.0 Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details. System.Object System.Collections.IDictionary This is a simple implementation of using a singly linked list. It is smaller and faster than a if the number of elements is 10 or less. This should not be used if performance is important for large numbers of elements. Items in a are not in any guaranteed order; code should not depend on the current order. The is implemented for fast keyed retrieval; the actual internal order of items is implementation-dependent and could change in future versions of the product. Members, such as , , , and are O() operations, where is . A key cannot be null, but a value can. The foreach statement of the C# language (for each in Visual Basic) requires the type of each element in the collection. Since each element of the is a key/value pair, the element type is not the type of the key or the type of the value. Instead, the element type is . For example: code reference: System.Collections.Specialized.ListDictionary2#3 The foreach statement is a wrapper around the enumerator, which only allows reading from, not writing to, the collection.

Implements IDictionary using a singly linked list. Recommended for collections that typically include fewer than 10 items.

Constructor 1.0.5000.0 2.0.0.0 4.0.0.0 The comparer determines whether two keys are equal. Every key in a must be unique. The default comparer is the key's implementation of . This constructor is an O(1) operation.

Creates an empty using the default comparer.

Constructor 1.0.5000.0 2.0.0.0 4.0.0.0 The comparer determines whether two keys are equal. Every key in a must be unique. The default comparer is the key's implementation of . The custom comparer enables such scenarios as doing lookups with case-insensitive strings. This constructor is an O(1) operation.

Creates an empty using the specified comparer.

The to use to determine whether two keys are equal. Method 1.0.5000.0 2.0.0.0 4.0.0.0 System.Void An object that has no correlation between its state and its hash code value should typically not be used as the key. For example, String objects are better than StringBuilder objects for use as keys. You can also use the property to add new elements by setting the value of a key that does not exist in the ; for example, myCollection["myNonexistentKey"] = myValue. However, if the specified key already exists in the , setting the property overwrites the old value. In contrast, the method does not modify existing elements. This method is an O() operation, where is .

Adds an entry with the specified key and value into the .

The key of the entry to add. The value of the entry to add. The value can be null. Method 1.0.5000.0 2.0.0.0 4.0.0.0 System.Void is set to zero, and references to other objects from elements of the collection are also released. This method is an O(1) operation.

Removes all entries from the .

Method 1.0.5000.0 2.0.0.0 4.0.0.0 System.Boolean This method is an O() operation, where is . Starting with the .NET Framework 2.0, this method uses the collection’s objects’ and methods on to determine whether exists. In the earlier versions of the .NET Framework, this determination was made by using the and methods of the parameter on the objects in the collection.

Determines whether the contains a specific key.

true if the contains an entry with the specified key; otherwise, false. The key to locate in the . Method 1.0.5000.0 2.0.0.0 4.0.0.0 System.Void The elements are copied to the in the same order in which the enumerator iterates through the . To copy only the keys in the , use ListDictionary.Keys.CopyTo. To copy only the values in the , use ListDictionary.Values.CopyTo. This method is an O() operation, where is .

Copies the entries to a one-dimensional instance at the specified index.

The one-dimensional that is the destination of the objects copied from . The must have zero-based indexing. The zero-based index in at which copying begins. Property 1.0.5000.0 2.0.0.0 4.0.0.0 System.Int32 To be added: an object of type 'int' Retrieving the value of this property is an O(1) operation.

Gets the number of key/value pairs contained in the .

Method 1.0.5000.0 2.0.0.0 4.0.0.0 System.Collections.IDictionaryEnumerator The foreach statement of the C# language (for each in Visual Basic) hides the complexity of the enumerators. Therefore, using foreach is recommended, instead of directly manipulating the enumerator. Enumerators can be used to read the data in the collection, but they cannot be used to modify the underlying collection. Initially, the enumerator is positioned before the first element in the collection. also brings the enumerator back to this position. At this position, is undefined. Therefore, you must call to advance the enumerator to the first element of the collection before reading the value of . returns the same object until either or is called. sets to the next element. If passes the end of the collection, the enumerator is positioned after the last element in the collection and returns false. When the enumerator is at this position, subsequent calls to also return false. If the last call to returned false, is undefined. To set to the first element of the collection again, you can call followed by . An enumerator remains valid as long as the collection remains unchanged. If changes are made to the collection, such as adding, modifying, or deleting elements, the enumerator is irrecoverably invalidated and its behavior is undefined. The enumerator does not have exclusive access to the collection; therefore, enumerating through a collection is intrinsically not a thread-safe procedure. To guarantee thread safety during enumeration, you can lock the collection during the entire enumeration. To allow the collection to be accessed by multiple threads for reading and writing, you must implement your own synchronization. This method is an O(1) operation.

Returns an that iterates through the .

An for the . Property 1.0.5000.0 2.0.0.0 4.0.0.0 System.Boolean To be added: an object of type 'bool' implements the property because it is required by the interface. A collection with a fixed size does not allow the addition or removal of elements after the collection is created, but it allows the modification of existing elements. A collection with a fixed size is simply a collection with a wrapper that prevents adding and removing elements; therefore, if changes are made to the underlying collection, including the addition or removal of elements, the fixed-size collection reflects those changes. Retrieving the value of this property is an O(1) operation.

Gets a value indicating whether the has a fixed size.

Property 1.0.5000.0 2.0.0.0 4.0.0.0 System.Boolean To be added: an object of type 'bool' implements the property because it is required by the interface. A collection that is read-only does not allow the addition, removal, or modification of elements after the collection is created. A collection that is read-only is simply a collection with a wrapper that prevents modifying the collection; therefore, if changes are made to the underlying collection, the read-only collection reflects those changes. Retrieving the value of this property is an O(1) operation.

Gets a value indicating whether the is read-only.

Property 1.0.5000.0 2.0.0.0 4.0.0.0 System.Boolean To be added: an object of type 'bool' implements the property because it is required by the interface. Derived classes can provide a synchronized version of the using the property. Enumerating through a collection is intrinsically not a thread-safe procedure. Even when a collection is synchronized, other threads can still modify the collection, which causes the enumerator to throw an exception. To guarantee thread safety during enumeration, you can either lock the collection during the entire enumeration or catch the exceptions resulting from changes made by other threads.

Gets a value indicating whether the is synchronized (thread safe).

Property 1.0.5000.0 2.0.0.0 4.0.0.0 System.Object To be added: an object of type 'object'

To be added

To be added: an object of type 'object' To be added Property 1.0.5000.0 2.0.0.0 4.0.0.0 System.Collections.ICollection To be added: an object of type 'Collections.ICollection' The order of the values in the is unspecified, but it is the same order as the associated values in the returned by the method. The returned is not a static copy; instead, the refers back to the keys in the original . Therefore, changes to the continue to be reflected in the . Retrieving the value of this property is an O(1) operation.

Gets an containing the keys in the .

Method 1.0.5000.0 2.0.0.0 4.0.0.0 System.Void If the does not contain an element with the specified key, the remains unchanged. No exception is thrown. This method is an O() operation, where is .

Removes the entry with the specified key from the .

The key of the entry to remove. Property 1.0.5000.0 2.0.0.0 4.0.0.0 System.Object To be added: an object of type 'object' Derived classes can provide their own synchronized version of the using the property. The synchronizing code must perform operations on the of the , not directly on the . This ensures proper operation of collections that are derived from other objects. Specifically, it maintains proper synchronization with other threads that might be simultaneously modifying the object. Enumerating through a collection is intrinsically not a thread-safe procedure. Even when a collection is synchronized, other threads can still modify the collection, which causes the enumerator to throw an exception. To guarantee thread safety during enumeration, you can either lock the collection during the entire enumeration or catch the exceptions resulting from changes made by other threads.

Gets an object that can be used to synchronize access to the .

Method 1.0.5000.0 2.0.0.0 4.0.0.0 System.Collections.IEnumerator The foreach statement of the C# language (for each in Visual Basic) hides the complexity of the enumerators. Therefore, using foreach is recommended, instead of directly manipulating the enumerator. Enumerators can be used to read the data in the collection, but they cannot be used to modify the underlying collection. Initially, the enumerator is positioned before the first element in the collection. also brings the enumerator back to this position. At this position, calling throws an exception. Therefore, you must call to advance the enumerator to the first element of the collection before reading the value of . returns the same object until either or is called. sets to the next element. If passes the end of the collection, the enumerator is positioned after the last element in the collection and returns false. When the enumerator is at this position, subsequent calls to also return false. If the last call to returned false, calling throws an exception. To set to the first element of the collection again, you can call followed by . An enumerator remains valid as long as the collection remains unchanged. If changes are made to the collection, such as adding, modifying, or deleting elements, the enumerator is irrecoverably invalidated and the next call to or throws an . If the collection is modified between and , returns the element that it is set to, even if the enumerator is already invalidated. The enumerator does not have exclusive access to the collection; therefore, enumerating through a collection is intrinsically not a thread-safe procedure. Even when a collection is synchronized, other threads can still modify the collection, which causes the enumerator to throw an exception. To guarantee thread safety during enumeration, you can either lock the collection during the entire enumeration or catch the exceptions resulting from changes made by other threads. This method is an O(1) operation.

Returns an that iterates through the .

An for the . Property 1.0.5000.0 2.0.0.0 4.0.0.0 System.Collections.ICollection To be added: an object of type 'Collections.ICollection' The order of the values in the is unspecified, but it is the same order as the associated keys in the returned by the method. The returned is not a static copy; instead, the refers back to the values in the original . Therefore, changes to the continue to be reflected in the . Retrieving the value of this property is an O(1) operation.

Gets an containing the values in the .