sfDataGrid DetailViewDefinition - Binding InvalidOperationException exception if view model properties are readonly

[Sauro Rossi]

Hello,

I have just updated WPF sfDataGrid to the 2015 Vol2.

Before go trough the error detail, I would ask if is available a complete and detailed  "what's new" document about WPF 2015 Vol.2?

In my application I have a UserControl with a sfDataGrid with a DetailsViewDefinition.

DetailsView is a sfDataGrid with seven readonly columns with the following binding definition

<sync:GridTemplateColumn.CellTemplate>
	<DataTemplate>
		<local:StrategyStintView DataContext="{Binding S5, Mode=OneWay}" />
	</DataTemplate>
</sync:GridTemplateColumn.CellTemplate>

if I click on the cell I have the following error (please see complete exception in attached file). As  you can see, binding mode is OneWay.

 

System.InvalidOperationException

 A TwoWay or OneWayToSource binding cannot work on the read-only property 'S5' of type 'ViewModels.MainPanelControls.GridViewModels.DSViewModel'.

S5 property is simply defined as you can see below

public int S5
{
	get { return GetS(5); }
}

the only way that I found to solve this issues is do add a fake set. But in this mode my  ViewModel become dirty in few minutes...

public int S5
{
	get { return GetS(5); }
	set { ; }
}

In release 12.4.0.24 all works fine.

Can you please have a check?

Regards

Sauro

Attachment: sfDataGrid_error_43ba981a.zip

[Jayaleshwari N]

Hi Sauro,

We were able to reproduce the issue “Binding InvalidOperationException exception if view model properties are readonly” and have logged defect report regarding this. A support incident to track the status of this defect has been created under your account. Please log on to our support website to check for further updates

https://www.syncfusion.com/account/login?ReturnUrl=%2fsupport%2fdirecttrac%2fincidents

Please let me know if you have any questions.

Regards,
Jayaleshwari N.