The rowEditHandling property (string) specifies the default submit action for inline row editing in the JavaScript Gantt Chart component.
"Update" - updates the row header text using the supplied text
"PostBack" - fires the RowEdit event on the server side (ASP.NET WebForms only)
"CallBack"- fires the RowEdit event on the server side (ASP.NET WebForms, ASP.NET MVC, Java only)
"Update"{
rowEditHandling: "CallBack",
// ...
}