title: Dropdown list with data in tree view format for SSRS report
body: <p>I have the below data structer(sample data) </p>
  
  <pre><code>Path
  ----
  a\a.a
  a
  a\a.b\
  a\a.a\a.a.a
  b
  a\a.a\a.a.b
  b.a
  a\a.b\a.b.a
  b\b.a\b.a.a
  c
  b\b.b
  a\a.a\a.a.c
  a\a.a\a.a.a
  a\a.b\a.b.a
  b\b.a\b.a.a
  </code></pre>
  
  <p>I need to have these values in dropdown list in below format with mulitselect option in SSRS Report. These values will 
  act as input to the next linked ssrs report.</p>
  
  <pre><code>  [Checkbox] a
      [Checkbox] a.a
          [Checkbox] a.a.a
          [Checkbox] a.a.b
          [Checkbox] a.a.c
    [Checkbox] b
      [Checkbox] b.a
          [Checkbox] b.a.a
      [Checkbox] b.b
    [Checkbox] c
  </code></pre>
  
  <p>Could someone help on this?</p>
  
  <p>If need more clarification, pls let me know.</p>