'Declaration Public Overridable Sub ClearUnknownData()
public virtual void ClearUnknownData()
| Exception | Description |
|---|---|
| System.InvalidOperationException | This method is called on an UnknownShape instance. |
This method will only be needed until all shape information is supported and customizable. After all shape data can be controlled, this method will become obsolete. Currently, all unsupported data will be stored with the shape for round-tripping purposes. For example, if an Excel file with complex and unsupported shapes is loaded into a Workbook instance, some cell values are changed, and it is saved to the same file, the complex shapes will still exist in the workbook. However, if a loaded shape needs to be modified before it is saved back, this method allows for that unsupported data to be removed while all supported data is maintained.
Note: This method only clears unsupported data. In future versions of the product, as more shape data is supported, this method will have different effects on the shape, until eventually all data is supported and this method will have no effect on the shape.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2