Can I prevent OnWizardCreate() from automatically closing the wizard?

Questions & Answers
1

I would like the wizard not to close if the user attempts to click “Create”, and certain requirements are not fulfilled.

Example Code:

    void OnWizardCreate()
    {
        if (Category != "") 
        {
            PrefabUtility.CreatePrefab("Assets/Resources/" + ArtifactName + ".prefab", upcommingArtifact);
        }
        else
        {
            //Do not close line goes here
            EditorUtility.DisplayDialog("No Category Given", "The cetegory needs to be set", "Ok");
        }
    }
2

ScriptableWizard provides field “isValid” to disable the “Create” button.

And “errorString” to display a feedback.

void OnWizardUpdate () {    
	if (Category != "") 
		isValid = true;
	else
	{
		isValid = true;
		errorString = "No Category Given: The cetegory needs to be set";
	}
}