title: Calling Stored Proc with CHAR Parameters results in a parameter with a huge value
body: <p>I am calling a stored proc [MS SQL] using EF5 from a .net application</p>
  
  <p>The call from EF</p>
  
  <pre><code>return base.ExecuteFunction&lt;sp_select_contracts_Result&gt;("sp_select_contracts", x, y, z);
  </code></pre>
  
  <p>in the proc the parameter is defined as <code>@para1 CHAR(2)</code> etc</p>
  
  <p>But in SQL Profiler I caught EF sending the following</p>
  
  <pre><code>exec [dbo].[sp_select_contracts_statistics] @x='15                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               '
  </code></pre>
  
  <p>Exactly like that - a huge amount of spaces after the actual value.</p>
  
  <p>When I change the <strong>CHAR</strong> to <strong>VARCHAR</strong> it works correctly:</p>
  
  <p><code>exec [dbo].[sp_select_contracts_statistics] @x='15','@y='24,@z='2010</code>'</p>
  
  <p>I could work around this easily, but I would like to know what I am missing 
  here.</p>
  
  <p>Update:
  Forgot to mention that in C# all the values are strings.
  In the last call from c# before going through EF the values are correct:
  <code>x = "15" {String}</code> etc..</p>
  
  <p>Edit2:
  Changing CHARS to VARCHARS worked as expected. Would still prefer to know if this is a bug or just something we are missing.</p>