---
title: "MetadataDictionary Properties "
canonical: https://www.graphicsmill.com/docs/gm5/Properties_T_Aurigma_GraphicsMill_Codecs_MetadataDictionary.htm
product: "Graphics Mill 5.5 for .NET"
---
This documentation is for the old version. [Go to the latest Graphics Mill docs](https://www.graphicsmill.com/docs/gm/)
# MetadataDictionary Properties
The [MetadataDictionary](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Codecs_MetadataDictionary.htm.md) type exposes the following members.
## Properties
| | Name | Description |
| --- | --- | --- |
|  | [Count](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Codecs_MetadataDictionary_Count.htm.md) | Gets number of items in the dictionary. |
|  | [IsDisposed](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_LockableObject_IsDisposed.htm.md) | (Inherited from [LockableObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_LockableObject.htm.md).) |
|  | [IsFixedSize](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Codecs_MetadataDictionary_IsFixedSize.htm.md) | Indicates whether the dictionary has a fixed size. |
|  | [IsReadOnly](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Codecs_MetadataDictionary_IsReadOnly.htm.md) | Indicates whether the dictionary is a read-only. |
|  | [IsSynchronized](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Codecs_MetadataDictionary_IsSynchronized.htm.md) | Indicates whether the dictionary is synchronized. |
|  | [Item](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Codecs_MetadataDictionary_Item_1_d02429b3.htm.md) | Gets/sets item with the specified key. |
|  | [Keys](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Codecs_MetadataDictionary_Keys.htm.md) | Returns a collection of keys stored in this dictionary. |
|  | [Locked](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_LockableObject_Locked.htm.md) | Indicates if the object has been locked.
(Inherited from [LockableObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_LockableObject.htm.md).) |
|  | [SyncRoot](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Codecs_MetadataDictionary_SyncRoot.htm.md) | Gets an object for synchronized access. |
|  | [Timeout](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_LockableObject_Timeout.htm.md) | Gets/sets value specifying maximum time for which object can be locked.
(Inherited from [LockableObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_LockableObject.htm.md).) |
|  | [Values](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Codecs_MetadataDictionary_Values.htm.md) | Returns a collection of values (without keys) stored in this dictionary. |
## See Also
### Reference
- [MetadataDictionary Class](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Codecs_MetadataDictionary.htm.md)
- [Aurigma.GraphicsMill.Codecs Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill_Codecs.htm.md)