DeleteMetadataContent Method (IMetadata)
Delete certain content from the metadata of the current item
Item: Delete certain content from the metadata of the current item: DeleteMetadataContent
Item featureClassWithMetadataItem = ItemFactory.Instance.Create(@"C:\projectBeta\GDBs\regionFive.gdb\SourceFeatureClass");
//Delete thumbnail content from item's metadata
await QueuedTask.Run(() => featureClassWithMetadataItem.DeleteMetadataContent(MDDeleteContentOption.esriMDDeleteThumbnail));
Target Platforms: Windows 11, Windows 10
ArcGIS Pro version: 3 or higher.