求助：图层控制(legend)

<P>private void Form1_Load(object sender, System.EventArgs e)</P>
<P>{</P>
<P>object refMap = (object) this.axMap1;<BR>    bool refTrue = true;<BR>    short refShort = 0;<BR>    axlegend1.setMapSource(ref refMap);<BR>    axlegend1.ShowAllLegend();<BR>    axlegend1.LoadLegend(ref refTrue);<BR>    axlegend1.set_Active(ref refShort, true);<BR>    axMap1.Refresh();<BR>    axlegend1.Refresh();</P>
<P>}</P>
<P>private void axlegend1_AfterSetLayerVisible(object sender, AxMO21legend.__legend_AfterSetLayerVisibleEvent e)<BR>  {<BR>     axMap1.Refresh();<BR>     axlegend1.Refresh();</P>
<P>  }</P>
<P>错误提示是：erro'450',wrong number of arguments or invalid property assigment!希望多多指点！</P>