Working with metadata in ProjectManagement formats Leave feedback
GroupDocs.Metadata for .NET provides functionality that allows working with MPP files created by different versions of Microsoft Project. Please see the code samples below for more information.
To access built-in metadata of a ProjectManagement document, please use the DocumentProperties property defined in the DocumentRootPackage class.
The following code snippet extracts built-in metadata properties and displays them on the screen.
AdvancedUsage.ManagingMetadataForSpecificFormats.
using (Metadata metadata = new Metadata(Constants.InputMpp))
{
var root = metadata.GetRootPackage<ProjectManagementRootPackage>();
Console.WriteLine(root.DocumentProperties.Author);
Console.WriteLine(root.DocumentProperties.CreationDate);
Console.WriteLine(root.DocumentProperties.Company);
Console.WriteLine(root.DocumentProperties.Category);
Console.WriteLine(root.DocumentProperties.Keywords);
Console.WriteLine(root.DocumentProperties.Revision);
Console.WriteLine(root.DocumentProperties.Subject);
// ...
}
If you need to extract custom metadata properties of a ProjectManagement document please follow the code sample below.
AdvancedUsage.ManagingMetadataForSpecificFormats.
using (Metadata metadata = new Metadata(Constants.InputMpp))
{
var root = metadata.GetRootPackage<ProjectManagementRootPackage>();
var customProperties = root.DocumentProperties.FindProperties(p => !p.Tags.Contains(Tags.Document.BuiltIn));
foreach (var property in customProperties)
{
Console.WriteLine("{0} = {1}", property.Name, property.Value);
}
}
Updating any built-in document properties is as simple as getting them. The following code sample demonstrates how to update built-in metadata properties in a ProjectManagement document.
AdvancedUsage.ManagingMetadataForSpecificFormats.
using (Metadata metadata = new Metadata(Constants.InputMpp))
{
var root = metadata.GetRootPackage<ProjectManagementRootPackage>();
root.DocumentProperties.Author = "test author";
root.DocumentProperties.CreationDate = DateTime.Now;
root.DocumentProperties.Company = "GroupDocs";
root.DocumentProperties.Comments = "test comment";
root.DocumentProperties.Keywords = "metadata, built-in, update";
// ...
metadata.Save(Constants.OutputMpp);
}
The GroupDocs.Metadata API also allows adding and updating custom metadata properties in a ProjectManagement document. Please check the code sample below.
AdvancedUsage.ManagingMetadataForSpecificFormats.
using (Metadata metadata = new Metadata(Constants.InputMpp))
{
var root = metadata.GetRootPackage<ProjectManagementRootPackage>();
root.DocumentProperties.Set("customProperty1", "some value");
root.DocumentProperties.Set("customProperty2", 7);
root.DocumentProperties.Set("customProperty3", true);
// ...
metadata.Save(Constants.OutputMpp);
}
You may easily run the code above and see the feature in action in our GitHub examples:
Along with full featured .NET library we provide simple, but powerful free Apps. You are welcome to view and edit metadata of PDF, DOC, DOCX, PPT, PPTX, XLS, XLSX, emails, images and more with our free online Free Online Document Metadata Viewing and Editing App.
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