RadGridView ComboBox Column Binding problem

[Xu]

Hi, Telerik Guys

I have a question for ComboBox Column, I posted this issue in my blog, is this really a bug or it was designed as it?
http://chunxusky.blogspot.com/2011/05/telerik-silverlight-radgridview.html

it's really annoying when I try to use MVVM to bind the ComboBox column

thanks

[Pavel Pavlov]

Hello Xu,

In fact it is not a bug . As described in the documentation , you  should use the ItemsSourceBinding property in this scenario.

So as a fix , in your XAML , just replace the 'ItemsSurce'  with 'ItemsSourceBinding' and this should fix the things up.

Regards,
Pavel Pavlov
the Telerik team

[Pavel Pavlov]

Hello Xu,

As a side note, in case  the proposed fix works for you I would kindly ask you to update your blog , as  it may cause some confusion  and misleading.

All the best,
Pavel Pavlov
the Telerik team

[Xu]

hello, Telerik Admin

I understand very well what difference between ItemsSource and ItemsSourceBinding and I tried to use ItemsSourceBinding to replace ItemsSource, it doesn't work... furthermore , it's getting worse, nothing displayed in the ComboBox column

at the end of my blog, I provided a sample project to download, have you ever try this project? in that demo, I show this issue.

[Pavel Pavlov]

Hello Xu,

Thanks for pointing me out the sample . I took a look  and here are my findings : 

Having :

ItemsSource="{Binding Countries}"
Means "Take the items source from the Countries property of the datacontext of the cell".




However the DataContext of the cell, when data is loaded , is set to the business object relevant to the row , not the datacontext of the page. 



This is by design . 







In other words: 

The datacontext of the cell will be a "People" object , which of course does not have the "Countries" property . 



That is why the binding gets broken . 

Hope this clarifies the things.

Regards,
Pavel Pavlov
the Telerik team

[Alejandro]

Is there any fix of this? Any way to make this work?