silverlight - Disable ConvertBack() on TwoWay binding when using UpdateSource() -

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i maintaining silverlight app, , had resort manually rebind textboxes' text.

so use:

mytextbox.getbindingexpression(textbox.textproperty).updatesource();

problem is, textbox needs have twoway binding, set it. control uses unorthodox ivalueconverter, should never convertback, since got twoway binding... gets called.

is there way disable convertback(), , yet let convert() job?

thanks ;)

you should use converter handle both directions...

subclass existing converter , have convertback hide existing 1 (and return harmless) while convert calls base.convert.


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