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Adds known metadata properties satisfying the specified predicate. The operation is recursive so it affects all nested packages as well.
public int AddProperties(Func<MetadataProperty, bool> predicate, PropertyValue value)
| Parameter | Type | Description |
|---|---|---|
| predicate | Func`2 | A function to test each metadata property for a condition. |
| value | PropertyValue | A value for the picked properties. |
The number of affected properties.
Learn more
- More examples demonstrating usages of this method: Adding metadata
This example demonstrates how to add some missing metadata properties to a file regardless of its format.
using (Metadata metadata = new Metadata(Constants.InputDocx))
{
// Add a property containing the file last printing date if it's missing
// Note that the property will be added to metadata packages that satisfy the following criteria:
// 1) Only existing metadata packages will be affected. No new packages are added during this operation
// 2) There should be a known metadata property in the package structure that fits the search condition but is actually missing in the package.
// All properties supported by a certain package are usually defined in the specification of a particular metadata standard
var affected = metadata.AddProperties(p => p.Tags.Contains(Tags.Time.Printed), new PropertyValue(DateTime.Now));
Console.WriteLine("Affected properties: {0}", affected);
metadata.Save(Constants.OutputDocx);
}
- delegate Func<T,TResult>
- class MetadataProperty
- class PropertyValue
- class Metadata
- namespace GroupDocs.Metadata
- assembly GroupDocs.Metadata
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