twoway multibinding validation

Question

Hi,

i have this case where there is a multibinding for ex, textbox1 which value depend on textbox2 and textbox3 and the binding is two way, all textbox applied the same validation rule for ex error if minus.

somehow if textbox1 got updated the textbox2 and textbox3 validation will fire. but when either textbox2 or textbox3 updated, textbox1 validation will not fire.

• i hv tried set the ValidatesOnTargetUpdated="True" but nothing happened.

any help i can get??

thanks alot

Answer 1

it appears that ValidatesOnTargetUpdated is not observed by Multibinding