加载COVERAGE 文件

<P>mo 怎么加coverage格式的文件啊</P>
<P>Dim dc As New DataConnection<BR>Dim layer As MapLayer<BR>dc.Database = App.Path<BR>If Not dc.Connect Then<BR>   MsgBox "没找到可用文件"<BR>End If<BR> Set layer = New MapLayer<BR> Set layer.GeoDataset = dc.FindGeoDataset("Truck")<BR> Map1.Layers.Add layer</P>
<P>不行 右键--属性加  也不行   </P>
<P>出现error loading the imagelayer</P>