[Solved] Programmatically update column's defaultValue

[Michele]

Hi,
I'm building a grid using the ASP.NET helpers, but that's unrelevant.

I'm performing CRUD operation over a DB where some tables starts with ID 0. As a result, I'm forced to set the DefaultValue for that column to -1, because the other numbers may be used for the table rows.
But actually for everytime the user wants to perform an insertion, i don't want to show the ugly "-1" as ID default value, but i would like to set the first available number or otherwise zero.

Is there a way to associate a function to return the defaultValue or to anyway change the default value in an elegant way?

Thanks

[Alexander Popov]

Hello Paolo,

Generally speaking, IDs should not be manually edited by the user - this is a task that should be performed on database or server-side level. Nevertheless you can use the Grid's edit event handler to set a value of your choice for the new items. For example: 

function onEdit(e) {
    if(e.model.isNew()){
       e.model.set("MyField", newValue);
    }
}

Regards,
Alexander Popov
Telerik