vb.net show tooltiptext for every item in datagridviewcombobox
<p>I have searched for displaying tooltiptext for datagridview but I'm only getting tooltiptext for datagridviewcell. What I want is the tooltiptext to display when an item is highlighted (mouse hover) from the dropdown list of a datagridviewcomboboxcolumn.
I have set the tooltiptext in databinding of the comboboxcolumn but it doesn't display anything in runtime.</p>

<pre><code>'assuming dtExpense is the datatable used as datasource
With CType(DataGridView3.Columns(2), DataGridViewComboBoxColumn)
    .AutoComplete = True
    .DataSource = dtExpense
    .DisplayMember = "acct_title"
    .ValueMember = "acct_id"
    .DataPropertyName = "acct_id"
    .ToolTipText = "description"
End With
</code></pre>

<p>Can anyone tell me how to do this. In datagriviewcell.tooltiptext it has to drawn at some point. I was thinking how to do this with datagridviewcomboboxcolumn and it has to display for each item in the combobox.</p>