public static Task<FileInfo> CopyAsync( this FileInfo source, DirectoryInfo destinationFolder, string desiredNewName )
<ExtensionAttribute> Public Shared Function CopyAsync ( source As FileInfo, destinationFolder As DirectoryInfo, desiredNewName As String ) As Task(Of FileInfo)
public: [ExtensionAttribute] static Task<FileInfo^>^ CopyAsync( FileInfo^ source, DirectoryInfo^ destinationFolder, String^ desiredNewName )
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