bootstrap-tagsinput css & .js is not binding data on server

hey

 

It is difficult to say without watch your model structure.Another thing whether your css and js are access in your page or not.At run time press f12 and go to source. May try

 

@Html.EditorFor(model => model.nameList.data[i].keywordArray, new { htmlAttributes = new { @class = "form-control input-sm", data_role = "tagsinput" } })