[Solved] SelectedItem binding

[Vidar]

Hi.

I am unable to bind to the SelectedItem attribute in RadGridView. It ends with errors on page.
The code below works with an ordinary ListBox control.

I am using VMMV models to avoid too much code in the code-behind files. Everything is bound together using the ninject.
I do not want to use the selecttion changed event.

Are you able to see the problem?

DataContext

 

="{Binding Path=AttributeViewModel, Source={StaticResource serviceLocator}}"

 

 

 

<telerikGridView:RadGridView 
    IsReadOnly="True" ColumnsWidthMode="Auto" AutoGenerateColumns="False"

 

 

    ItemsSource="{Binding Path=AttributeTypes, Mode=OneWay}"
    SelectedItem="{Binding Path=SelectedAttributeType, Mode=TwoWay}">

 

 

 

<telerikGridView:RadGridView.Columns>

 

 

<

 

TextBlock Text="{Binding SelectedAttributeType.Name}" />

 

 

 

 

public AttributeType SelectedAttributeType

 

{

 

    get { return selectedAttributeType; }

 

 

    set

 

 

 

 

    {

 

        if (selectedAttributeType != value && value != null)

 

        {

            selectedAttributeType =

value;

 

            RaisePropertyChanged(

"SelectedAttributeType");

 

        }

    }

}


Regards
Vidar Steen

[Nedyalko Nikolov]

Hi Vidar,

I cannot reproduce the issue you described.

I'm attaching a sample application which is the result of my attempts to simulate the problem. You can use this example to provide me with more detailed information about your scenario.

Sincerely yours,
Nedyalko Nikolov
the Telerik team

Check out Telerik Trainer , the state of the art learning tool for Telerik products.

[Vidar]

Hi.

Thank you for your answer.

I have found that setting the SelectedPerson in your example reproduces the error I am talking about. I changed the Persons list in your example to ObservableCollection. If you do the changes below to your code you will get the error in question.

public PersonViewModel()

{

    this.Persons = this.CreatePersonList();

    SelectedPerson = Persons[0];

}

private ObservableCollection<Person> CreatePersonList()

{

    ObservableCollection<Person> persons = new ObservableCollection<Person>();

    for (int i = 0; i < 5; i++)

    {
        persons.Add(new Person{Age = i, FirstName = "John " + i, LastName = "Doe " + i});

    }

    return persons;

}

 

 

Regards,

Vidar Steen

[Nedyalko Nikolov]

Hi Vidar,

Thank you for the valuable feedback. It seems that this is a bug in our control, so I've updated your Telerik points.

As a workaround you can set "SelectedPerson" after complete loading of the RadGridView. For your reference I'm attaching a modified version of the example you already have.

Greetings,
Nedyalko Nikolov
the Telerik team

Check out Telerik Trainer , the state of the art learning tool for Telerik products.