Date Formatting In Drop Down List

I am trying to make a dropdownlist with a date. Where should I define
that I do want only the date, not the hour.
So far it shows something
like "14-02-2006 0:00:00" whereas I just want "14-02=2006". I tried
"CAST(CONVERT (varchar(25); Ma_Fecha; 112) AS datetime)" in the SQL
Statement but it doesnt seem to work.

[CODE]
Dim sSQL As String = " SELECT    "
sSQL = sSQL & "   Ma_Date,sDate "
sSQL = sSQL & " FROM vwMareaMain "
Dim comm As New SqlCommand(sSQL, objConn)
Dim dataAdapter As New SqlDataAdapter(comm)
dataAdapter.Fill(objDS2, "vwDate")

Me.cboDate.DataMember = "vwDate"
Me.cboDate.DataValueField = "Ma_Date"
Me.cboDate.DataSource = objDS2.Tables("vwDate").DefaultView
[/CODE]