Binding doesnt work

[Jiri]

Hi, I have a problem probably with binding - when I try load something from database - everything works fine, but when I try save something to database - property is null

Detail.PoznamkaMax is ViewModel property - data from database

<telerik:RtfDataProvider x:Name="rtfDataProvider"
          Rtf="{Binding ElementName=poznamka, Path=Text, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
          RichTextBox="{Binding ElementName=editor}"
                                 />
<risCtrl:RadTextInput x:Name="poznamka" Margin="0 100 0 0" Text="{Binding Path=Detail.PoznamkaMax,Mode=TwoWay,
                                            ValidatesOnExceptions=False, NotifyOnValidationError=True}" />

            <telerik:RadRichTextBox x:Name="editor" Grid.Row="1" Grid.Column="0"
                                    DocumentContentChanged="editor_DocumentContentChanged"
                                    Margin="0 4 0 0"
                />

[Tanya]

Hello Jiri,

We are not familiar with a control with the name RadTextInput and I not sure what exactly it is.

In general, the data provider should be bound to the content of the RadRichTextBox through the view model and the UpdateSourceTrigger property should be set directly to the provider and not to the binding. We have an SDK example showing how to bind RadRichTextBox, you could check it on GitHub.

If this is not helpful, it will be great if you could share the view model, which is used for the binding and explain what RadTextInput represents.

Regards,
Tanya
Telerik