How to disable dirty for certain properties - Observable / DataSource

[Long]

Is there anyway to disable the dirty flag from being set for a few properties so that the DataSource does not think there are changes?

For example I may have a model defined as: 

var model = new kendo.data.Model({
name: "John Doe",
visible: true
});

However when I change the visible (to hide or display something using CSS MVVM binding), I don't want the DataSource to think that my model is "dirty" and send that back to the server, however I do want MVVM binding to still work so that I can hide or show.

[Nikolay Rusev]

Hello Long,

This isn't possible. Changing field value of the model marks it as dirty. This is how changes are being tracked in the model state. You can however set back the dirty flag to false. 

Regards,
Nikolay Rusev
Telerik

 

 

[Long]

Unfortunately when the DataSource is set to AutoSync: true, changes are already sent to the server before the DataSource.Change event gets fired (the Change event was where I was hopping to intercept the model and set dirty = false) if it wasn't a field that needed to be tracked e.g. IsVisible property for a table row.

[Nikolay Rusev]

Hello Long,

Indeed in case of auto sync this will happen. Changing field from the model will trigger change  which will propagate to the DataSource and if autoSync is configured it will initiate a request.

Regards,
Nikolay Rusev
Telerik