title: Accessing the data of the selected item of a RadListView on doubleclick (WinForms)
body: <p>I've got a question I've got a RadListView which I populate with a custommade list of ListViewDataItems (all under WinForms). </p>
  
  <pre><code>this.listView.Items.Add(new ListViewDataItem(myCustomId, new string[] { fileName, fileSizeInMB});
  </code></pre>
  
  <p>Then I added a doublclick event:</p>
  
  <pre><code>listView.DoubleClick += mainFormListView_DoubleClick;
  </code></pre>
  
  <p>And declared the event:</p>
  
  <pre><code> void listView_DoubleClick(object sender, EventArgs eventArgs)
  </code></pre>
  
  <p>I then access the currently selected item with listView.Items[listView.SelectedIndex].</p>
  
  <p>So far so good. 
  But when I try to access the data I had put into that Item the problems start.
  In total I want to get the "myCustomId" of the selected item when an item is doubleclicked,
  but all I manage to get is a ListViewDataItem that holds not a single Data, and  only contains format properties.</p>
  
  <p>Can anyone tell me what I'm doing wrong there or how exactly I can access the previously stored ID?</p>
  
  <p>thanks</p>