Mostafa, I agree with Neil that Esri did not design the new editing workflow to allow for easily editing a feature class with a definition query defined but like many things with Esri they did provide a work around. These steps are almost more time consuming then dropping the def query, editing the feature, then adding the def query back. But sometimes you don't want to drop the def query so here are the steps.
Begin an edit session, open Create Features, select Organize Templates. In the Organize Features window double click on your feature to open the Template Properties window. In the Template Properties apply the definition query values to the correct field (all fields should be currently <Null>). Once the value is set the template will now be available in the Create Features window. Continue to edit. Sorry for the lengthy reply, hope this is helpful.
