title: NSDictionary having null value
body: <p>I have a problem when Extracting data from a Dictionary object. Count of the Dictionary is displaying as 1, but the one value it is displaying is null. I want to display a AlertView when there is no data in the Dictionary object. I thought of displaying the AlertView when the count is '0', but it returning '1'.</p>
  
  <p>I am extracting this dictionary object from a WebService using JSON.</p>
  
  <pre><code>{
       "My Data" = null;
  }
  </code></pre>
  
  <p>Used this code for getting the "My Data" value into the Dictionary variable Datas.</p>
  
  <pre><code>Datas = (NSDictionary *) [details objectForKey:@"My Data"];
  
  if ([Datas count] == 0) {
  
  //code for showing AlertView....
  
  }
  </code></pre>
  
  <p>Please help me to display a UIAlertView when the Dictionary value having null....</p>