c# - EntityFramework - Cannot Delete Entity using DbSet -

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इस सवाल का पहले से ही एक उत्तर है: < / P>

  • 5 जवाब

    मैं एक को हटाने की कोशिश कर रहा हूँ EntityFramework के DbSet का उपयोग करके मेरे डेटाबेस से ऑब्जेक्ट कोड निम्नानुसार है: 

      var dbObject = FindById (id); _masterDb.DbTable.Remove (dbObject); _masterDb.SaveChanges ();   
     मुझे निम्न त्रुटि मिलती है: "ऑब्जेक्ट को हटाया नहीं जा सकता क्योंकि यह ऑब्जेक्टस्टेट मैनेजर में नहीं मिला है।"  
     कृपया कोई मुझे बता सकता है कि मैं क्या कर रहा हूं   
     
     
     संभवत: एक ही संदर्भ से इकाई संलग्न नहीं है।  
     क्या यह कार्य:  
      var dbObject = FindById (id); _masterDb.DbTable.Attach (dbObject); _masterDb.DbTable.Remove (dbObject); _masterDb.SaveChanges ();

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