PropertyGrid Custom TypeEditor INotifyPropertyChanged

[Andrea]

Hi, 

several properties of the object attached to my RadPropertyGrid are of a custom type "DPDouble", which wraps some functionality around a double value.
In order to show and edit properties of this type in the Grid, I have implemented a custom type editor DPDoubleEditorNew which is called like this:

01.void RequestEditors(object sender, Telerik.WinControls.UI.PropertyGridEditorRequiredEventArgs e)
02.{
03.    PropertyGridItem item = e.Item as PropertyGridItem;
04.    if (item.PropertyType == typeof(DPDouble))
05.    {
06.        e.EditorType = typeof(DPDoubleEditorNew);
07.    }
08.
09.}

And the editor is based on this code:

   public class DPDoubleEditorNew : BaseTextBoxEditor
{

    private DPDouble internalvalue;

    public override object Value
    {
        get
        {

            BaseTextBoxEditorElement element = this.EditorElement as BaseTextBoxEditorElement;

            double myval;
            if(double.TryParse(element.Text,out myval))
            {
                internalvalue.SetValueAuto(myval);
            }

            return internalvalue;
        }
        set
        {

            internalvalue = (DPDouble)value;
            base.Value = internalvalue;
        }
    }

}

Basically you see that I keep a pointer to the DPDouble object and when the editor is done I use the SetValueAuto as setter function.
This works fine, but although the bound object subscribes to INotifyPropertyChanged interface, and I raise the PropertyChanged event in the SetValueAuto setter function, my grid seems unable to catch the event.

My object has the following event

public event PropertyChangedEventHandler PropertyChanged;

    public void RaisePropertyChanged(String info)
    {
        if (PropertyChanged != null)
        {
            PropertyChangedEventArgs args = new PropertyChangedEventArgs(info);
            PropertyChanged(this, args);
        }
    }

The RaisePropertyChanged gets called, but although my grid subscribes to the PropertyChanged event 

PropertyGrid.PropertyChanged += new PropertyChangedEventHandler(PropertyGrid_PropertyChanged);

the handler is never called.
It seems like the INotifyPropertyChanged is notifying somebody else than my grid.

Do you have any suggestions?

[Yoan]

Hi Andrea,

Our RadPropertyGrid does not have its own PropertyChanged event. This is why I am not sure that I can understand your question. May I ask you to provide a sample project illustrating your scenario. This will helps us to assist you better.
 
I'm looking forward to hearing from you.

Regards,
Yoan
Telerik