Deleting a row on the grid

[MarkBr]

Hi,

View, Insert, update work fine however I cannot get the delete to work exception [The instance is transient]. I copied the code from an example.

See attached file.

Thanks
Mark Brewer

[Vladimir Iliev]

Hi Mark,

From the provided information it seems that you are trying to delete object that is not part of the context due to the way you are creating new Customer from the received ViewModel. In current case I would suggest to use the approach demonstrated in the following help topic:

• Telerik Open Access: MVC Sample application with CRUD operations

Regards,
Vladimir Iliev
Telerik

 

 

[MarkBr]

I created the same table as per the example you referenced and it work fine except it is not using Kendo Grid with Ajax. I took the original code from an example and all works well except the delete. As I an new to asp.net mvc and Kendo I am a bit lost. I have googled quite a bit to try to find other examples and have failed to find any others.

Can you point me to an example using Fluent OpenAccess, UI for Asp.Net MVC?

[Vladimir Iliev]

Hi Mark,

Could you please provide runable project where the issue is reproduced? This would help us pinpoint the exact reason for this behavior.

Kind Regards,
Vladimir Iliev
Telerik

 

 

[MarkBr]

Hi Vladimir,

Please find attached solution. I had to remove all the binaries and Kendo scripts.

Best regards,
Mark Brewer

[Daniel]

Hello Mark,

The exception is thrown because the object used for the Delete method is not attached to the context. You should use an attached object for the Delete method e.g.

public ActionResult Customers_Destroy([DataSourceRequest] DataSourceRequest request, Customer customer)
{
    if (ModelState.IsValid)
    {
        using (var vwVortex = new FluentModel())
        {

            var entity = vwVortex.AttachCopy(customer);
            vwVortex.Delete(customer);
            vwVortex.SaveChanges();
        }

Regards,
Daniel
Telerik

 

 

[MarkBr]

Sorted thanks Daniel