Why doesn't this join work with Entity Framework v4? -

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मैं (कोड-केवल) का उपयोग करता हूं। यदि मैं 

  var परिणाम = संदर्भ में व्यक्ति से। लोग। शामिल करें ("कार") नई {व्यक्ति, person.Houses.Count, बार, foo, आदि} का चयन करें;

तब परिणाम.पहले ()। कारें शून्य है अगर मैं ऐसा करता हूं, यह काम करता है, लेकिन मुझे Houses.Count : 

  var परिणाम की आवश्यकता है। संदर्भ में व्यक्ति। लोग। शामिल करें ("कार") चुनें व्यक्ति;

ऐसा लगता है कि इकाई फ़्रेमवर्क v4 वस्तु प्रारंभकर्ताओं के साथ अच्छी तरह से काम नहीं करता?

अब के लिए समाधान यह है: 

  var परिणाम = संदर्भ में व्यक्ति से। लोग। शामिल करें ("कार")। शामिल करें ("मकान") व्यक्ति का चयन करें;

लेकिन प्रदर्शन हास्यास्पद है, मुझे हाउस पंक्ति लाने की आवश्यकता है!

< पी> अंधेरे में एक शॉट ..

करता है: 

  var परिणाम = संदर्भ में व्यक्ति से.पर्सन संख्या count = person.Houses.Count () का चयन करें नया { व्यक्ति, गणना};

काम? ईमानदारी से, हालांकि, मैंने सोचा था कि आपकी पहली क्वेरी काम करनी चाहिए।


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