Nested properties binding in code

[tarnegur]

Hi.

I use the property editor and want almost all of the properties to be auto generated, because they are dynamically loaded from available modules. But there are some properties, which should be generated as nested properties, so I define them in code like this:

01.private PropertyDefinition GetOperationTimePropertyDefinition(List<OperationTime> times)
02.{
03.    var definition = new PropertyDefinition();
04.
05.    int order = 1;
06.    foreach (var operationTime in times)
07.    {
08.        var binding = new Binding { Source = operationTime, Path = new PropertyPath("")};
09.
10.        var nestedPropertyDefinition = new PropertyDefinition
11.                                        {
12.                                            DisplayName = operationTime.DayOfWeek,
13.                                            OrderIndex = order++,
14.                                            Binding = binding,
15.                                            EditorTemplate = FindResource("OperationTimeEditorTemplate") as DataTemplate
16.                                        };
17.
18.        definition.NestedProperties.Add(nestedPropertyDefinition);
19.    }
20.
21.    return definition;
22.}

The result you can see on the attached screenshot, the properties are generated correctly, but the binding made in line 8 is not working.
I am getting this binding exceptions:

System.Windows.Data Error: 40 : BindingExpression path error: 'WorkStartTillPause' property not found on 'object' ''PropertySetViewModel' (HashCode=37731737)'. BindingExpression:Path=WorkStartTillPause; DataItem='PropertySetViewModel' (HashCode=37731737); target element is 'RadTimePicker' (Name=''); target property is 'SelectedValue' (type 'Nullable`1')


Can you tell me how to construct the binding to get this work?

[Yoan]

Hello,

Please check this forum thread, where a similar question has already been discussed.

Regards,
Yoan
Telerik

 

 

[tarnegur]

Hello.

Thank you for answer.

I have already found by reflection the created view model and its dynamic properties and have made the bindings to it.

[tarnegur]

But to make it work I had to change my model, because this solution does not work for list properties, or I am doing something wrong.

Because I was generating nested properties from a list property on my view model.

Can you show me a sample, where it is working? With a view model like this, where you generate the nested properties in code for the BList to have 3 nested properties B with custom editor for C and D:

class Model
{
    public string A { get; set; }
    public List<B> BList { get { return new { new B(), new B(), new B() } ; } }
}

class B
{
    public string C { get; set; }
    public string D { get; set; }
}

[Yoan]

Hi,

Indeed, you can try to modify your model. If you are using the provided model, and PropertyGrid's AutoGeneratePropertyDefinitions property is True, then our PropertyGrid will generate a CollectionEditor for the BList list. You can check this help article for a reference. So, you can try to modify the model or create a CollectionEditor in code behind.

Regards,
Yoan
Telerik

 

 

[tarnegur]

But I don't want it to be a list editor. I want nested properties.

Please take a look to an example project I made to show you, how I want it to look like.

https://www.dropbox.com/s/3kxjyer2mner5fp/PropertyGridNestedProperties.zip?dl=0

[Dimitrina]

Hi,

You can try preparing your custom hierarchy structure when using RadPropertyGrid's unbound mode. That way you can manually define and bind the nested property definitions as you wish.

Regards,
Dimitrina
Telerik

 

 

[tarnegur]

It works for single sub-properties like Employee.Department, but not for property lists like Employee.Departments with

public List<Department> Departments { get; set; }