IntegrationFileClientDownloadPathFoldersAsync 方法

public Task<OperateResult<string[]>> DownloadPathFoldersAsync(
	string factory,
	string group,
	string id
)

Public Function DownloadPathFoldersAsync ( 
	factory As String,
	group As String,
	id As String
) As Task(Of OperateResult(Of String()))

public:
Task<OperateResult<array<String^>^>^>^ DownloadPathFoldersAsync(
	String^ factory, 
	String^ group, 
	String^ id
)

member DownloadPathFoldersAsync : 
        factory : string * 
        group : string * 
        id : string -> Task<OperateResult<string[]>> 

private void FillNodeByFactoryGroupId( TreeNode root, OperateResult<string[]> read, int grade )
{
    root.Nodes.Clear( );
    if (read.IsSuccess)
    {
        foreach (var item in read.Content)
        {
            TreeNode node = new TreeNode( item );
            node.Tag = grade;
            node.Nodes.Add( new TreeNode( ) );
            root.Nodes.Add( node );
        }

        // root.ExpandAll( ); occur an exception ?? I don't know
    }
    else
    {
        MessageBox.Show( read.ToMessageShowString( ) );
    }
}