title: from list to combobox
body: <p>My goal is to take user inputted Column information on one form and put it in a combobox on form 2.  Im really new to coding and vb.net, please keep it for dummies.  This is what I have so far on one form.</p>
  
  <pre><code>Public Class CrewDatabaseForm
      Public Shared CrewList As List(Of String)
  
      Private Sub CrewDatabaseForm_FormClosed(sender As Object, e As FormClosedEventArgs) Handles Me.FormClosed
          Dim CL As New List(Of String)
          Dim CLPure As New List(Of String)
          For i As Integer = 0 To DataGridView1.RowCount - 1
              CL.Add(DataGridView1.Rows(i).Cells(0).Value.ToString)
          Next
          CLPure = CL.Distinct
          CrewList = CLPure
      End Sub
  
      Private Sub CrewDatabaseForm_Load(sender As Object, e As EventArgs) Handles MyBase.Load
  
      End Sub
  End Class
  </code></pre>
  
  <p>DataGridView1 is just a DataGrid I dragged from the toolbox.  Im trying to pass the first column into a list, make it distinct, then pass it to a public list for this form to get a hold of:</p>
  
  <pre><code>Public Class NewWellForm
      Private Sub NewWellForm_Load(sender As Object, e As EventArgs) Handles MyBase.Load
          ComboBox1.Items.Add(CLPure.Item(1))
      End Sub
  End Class
  </code></pre>
  
  <p>Here Im trying to put the list into Combobox1</p>
  
  <p>The CLPure here is underlined swith squigglies so it will not work.  What am I doing wrong?  Also, I keep finding myself struggling to convert from list to array to combobox to column to etc.  Is there any good consistency, syntax, or resource for learning how to convert between these dataholders?</p>
  
  <p>Thanks</p>