c# - how to give state DateTime text as string? -

c# - how to give state DateTime text as string? -

  यदि (पाठक ["अंतिम जाँच"]! = DBNull.Value) {job.LastCheck = Convert.ToDateTime ( पाठक [ "LastCheck"]); } और {नौकरी। अंतिम चेक = दिनांक समय.अब; }    मैं कुछ स्ट्रिंग संदेश देना चाहता हूं अगर डीबी में इसकी शून्य मान लास्ट चेंज एक डेटटाइम है और यह कुछ पाठ लिखने में असंभव है। उसको कैसे करे?? ऐसा कुछ लेकिन काम:  
  else {job.LastCheck = "डीबी doent का मान है!"; }     
  आप किसी दिनांक समय के लिए कोई स्ट्रिंग निर्दिष्ट नहीं कर सकते।  < P> आप लास्ट चेक को एक रिक्त तिथि समय में परिवर्तित कर सकते हैं।  
  सार्वजनिक तिथि समय? लास्ट चेक {प्राप्त करें; सेट; }    फिर अपना कोड बदलने के लिए  
  else {job.LastCheck = null; }    और जब उपयोगकर्ता को अपना डेटटाइम प्रदर्शित करने का समय आता है, तो  
  यदि (! Job.LastCheck.HasValue) // अपना "डीबी एक मूल्य नहीं है! " स्ट्रिंग यहां     है

 


  







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