title: SSRS report multi select parameter does not select values automatically
body: <p>In SSRS report I have 2 parameters ClassName and StudentName both are allow to select multiple values. StudentName parameter react according to ClassName parameter's value. Both parameters have default values. when I run the report default value selected in ClassName dropdown and as per ClassName value StudentName values selected by default in StudentName dropdown as per below image.</p>
  
  <p><a href="https://i.stack.imgur.com/TFhZz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TFhZz.png" alt="enter image description here"></a></p>
  
  <p>Now, When I select more than one values from ClassName as per below image I can retrieve correct student names in StudentName dropdown but values are not selected by default.</p>
  
  <p><a href="https://i.stack.imgur.com/5fLhg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5fLhg.png" alt="enter image description here"></a></p>
  
  <p>Expected result should be as below:</p>
  
  <p><a href="https://i.stack.imgur.com/7v8Sj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7v8Sj.png" alt="enter image description here"></a></p>
  
  <p>is this SSRS limitation? or is there any work around?</p>