title: How do I empty dropdown list in VB.net
body: <p>I am allocating dropdown values from the DB like this.</p>
  
  <pre><code>DropDS = someFunctionName()
  dropDownID.DataSource = DropDS
  dropDownID.DataTextField = DropDS.Tables(0).Columns("columnNameFromDB").ToString()
  dropDownID.DataValueField = DropDS.Tables(0).Columns("columnNameFromDB").ToString()
  dropDownID.DataBind()
  dropDownID.Items.Insert(0, New ListItem("", "-1"))
  dropDownID.SelectedValue = "-1"
  </code></pre>
  
  <p>So, now I want to empty the list on certain condition.</p>
  
  <p>Can someone please help me?</p>
  
  <p>Thanks</p>