خطأ برمجي: مرجع الكائن غير مضبوط على مثيل صحيح

مراجع الكائن غير مُعين إلى مثيل من كائن

حدث استثناء غير معالج أثناء تنفيذ الطلب الحالي على الويب. يرجى مراجعة تتبع المكدس لمزيد من المعلومات حول الخطأ وأين نشأ في الشيفرة.

تفاصيل الاستثناء

استثناء System.NullReferenceException: لم يتم تعيين مرجع الكائن على مثيل من كائن.

تتبع المكدس

[NullReferenceException: لم يتم تعيين مرجع الكائن على مثيل من كائن.]
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