public void OnUninstalling(ControllerContext controllerContext) { var installationModel = new InstallationModel(); if (Kooboo.CMS.Sites.Extension.ModelBindHelper.BindModel(installationModel, controllerContext)) { try { _dbInitializer.DeleteDb(installationModel.ConnectionString); } catch (Exception e) { controllerContext.Controller.ViewData.ModelState.AddModelError("ConnectionString", e); } } }