Creating dropdown list inside a grid

[Rudy]

Hi all,

I've tried several times to create a dropdown list inside a grid by following  this link. But I still cannot create a dropdown list inside a grid. It always shows error when I run the program. It says ""An exception of type 'System.ArgumentException' occurred in mscorlib.dll but was not handled in user code. Additional information: Object of type 'POSF.Models.ProductViewModel' cannot be converted to type 'System.String'." I don't know how to do, I have done all like the link said.

Please help me

Here I attach my grid, controller, model, and error message

Best Regards

Rudy

[Alexander Popov]

Hi Rudy,

I reviewed the provided screenshots and noticed that a ProductViewModel object is used as a default value for a few of the fields. I would suggest passing the correct data type, for example: 

model.Field(PODetail=>PODetail.ModelCode).DefaultValue(ViewData["defaultProduct"].ModelCode);

Regards,
Alexander Popov
Telerik