Word COM - problem with method 'FormatHeading'

doo

I’v a problem with a method from word COM in AX.

I create a table in a word document with X++ and I want that the first row of this table repeat on every new pages like a header.
There is a method ‘HeadingFormat’ with com object Row that I can use for.

When I set the parameter ‘False’, it works. But when I try to set the parameter ‘True’, I received the following error message :

“Method ‘HeadingFormat' from class COM Object 'Row' return error code 0x80070057 (E_INVALIDARG), that mean : One or many arguments are not valid. “

I don’t understand why parameter ‘True’ doesn’t work like parameter ‘False’. That is a boolean parameter required !! Did someone have any ideas ??

I’ve the same problem with method ‘AllowBreakAcrossPages’.

This is my code :
--> If ‘_allowSplit’ or ‘_repeatAsHeader’ = false, that’s ok, method works correctly. If they’re true, it returns the error !
-->_COMRow is the specified row in the table.

void tableRowFormat(COM _COMRow, int _height, boolean _allowSplit, boolean _repeatAsHeader)
{
    //Set Row formatting

    ;

    if (_hight != 0)
    {
        _COMRow.height(_height);
    }

    _COMRow.HeadingFormat(_repeatAsHeader);
    _COMRow.AllowBreakAcrossPages(_allowSplit);

}

I don't find any helps anywhere about that, thanks for your help !