The rowCreateHandling property (string) specifies the default action to be performed by the JavaScript Gantt Chart when a new row text is submitted.
"Disabled" - row creating is disabled
"Enabled" - enables row creating, but performs no action on submit (use the onRowCreate or onRowCreated handler to provide a custom event handler)
"CallBack"- fires the RowCreate event on the server side using a CallBack (ASP.NET WebForms, ASP.NET MVC, Java)
"PostBack"- fires the RowCreate event on the server side (ASP.NET WebForms)
"Disabled"Gantt Chart config:
{
rowCreateHandling: "Enabled",
// ...
}