The DataFlex wrapper files are licensed under the LGPL license. A.k.a if you want to use the code of the wrappers in your product then you are free to do so. PLEASE NOTE THAT THE SYNCFUSION DISTRIBUTION FILES CANNOT BE USED IN YOUR APPLICATION WITHOUT BUYING THE CONTROLSUITE FROM SYNCFUSION! https://www.syncfusion.com/javascript-ui-controls SyncFusion has allowed us to bundle the distribution files with our demo application for demoing purposes only.