public static MvcHtmlString GridTopDialogForm(this HtmlHelper helper, ButtonParameters buttonParameters, ActionParameters actionParameters, ActionDialogFormParamters actionDialogFormParamters) { var fdButton = helper.ActionDialogFormButton(buttonParameters, actionParameters, actionDialogFormParamters).ToString(); var gridTopDiv = "<div class='t-toolbar t-grid-toolbar t-grid-top'>DIAGFORMBUTTON</div>"; var comb = gridTopDiv.Replace("DIAGFORMBUTTON", fdButton); return(new MvcHtmlString(comb)); }