Fix Date conversion

EDIDocumentImport/frmMain.vb

@@ -224,7 +224,12 @@ Public Class frmMain
         cmbOrderIssuer.Text = oHead.Fakt_Ansprechpartner
         txtOrderNumber.Text = oHead.Auftragsreferenz
         txtInfoText.Text = oHead.Infotext
-        dateOrderDate.EditValue = oHead.Datum_AuftragBestellung
+
+        Try
+            dateOrderDate.EditValue = Date.ParseExact(oHead.Datum_AuftragBestellung, "yyyy-MM-dd", Globalization.CultureInfo.InvariantCulture)
+        Catch ex As Exception
+            dateOrderDate.EditValue = Nothing
+        End Try
 
         ' --- Find Mandator --------------------------------------------------------------------------------------