VEMap.DeleteAllShapeLayers 方法

来源：https://msdn.microsoft.com/zh-cn/library/bb412514.aspx
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
   <head>
      <title></title>
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

      <script type="text/javascript" src="http://dev.ditu.live.com/mapcontrol/mapcontrol.ashx?v=6.2"></script>

      <script type="text/javascript">
         var map = null;
         var layer01 = null;
         var layer02 = null;
         var shape01 = null;
         var shape02 = null;
         var id01 = null;
         var id02 = null;
         var layer = null;
         
         function GetMap()
         {
            map = new VEMap('myMap');
            map.LoadMap();

            map.AttachEvent("onclick", ShapeLayerAlert);
         }
         
         function AddShapeLayers()
         {
            var points01 = new Array(
               new VELatLong(45.01188,-111.06687),
               new VELatLong(45.01534,-104.06324),
               new VELatLong(41.01929,-104.06),
               new VELatLong(41.003,-111.05878),
               new VELatLong(45.01188,-111.06687)
            );
            
            var points02 = new Array(
               new VELatLong(43.01188,-109.06687),
               new VELatLong(43.01534,-101.06324),
               new VELatLong(39.01929,-101.06),
               new VELatLong(39.003,-109.05878),
               new VELatLong(43.01188,-109.06687)
            );
            
            layer01 = new VEShapeLayer();
            layer01.SetTitle("layer01 title");
            map.AddShapeLayer(layer01);
            
            layer02 = new VEShapeLayer();
            layer02.SetTitle("layer02 title");
            map.AddShapeLayer(layer02);
            
            shape01 = new VEShape(VEShapeType.Polygon, points01);
            shape01.SetLineWidth(3);
            shape01.SetLineColor(new VEColor(0,150,100,1.0));
            shape01.SetFillColor(new VEColor(0,150,100,0.5));
            layer01.AddShape(shape01);
            
            shape02 =  new VEShape(VEShapeType.Polygon, points02);
            shape02.SetLineWidth(3);
            shape02.SetLineColor(new VEColor(0,100,150,1.0));
            shape02.SetFillColor(new VEColor(0,100,150,0.5));
            layer02.AddShape(shape02);
            
            map.SetMapView(points01);
            
            id01 = shape01.GetID();
            id02 = shape02.GetID();
            
            var links = "Delete: <a href='#' onClick='DeleteOneShape(id01)'>" + id01 + "</a><br/>";
            links += "Delete: <a href='#' onClick='DeleteOneShape(id02)'>" + id02 + "</a>";
            shapeLinks.innerHTML = links;    
            
            ShapeLayerInfo();        
         }

         function DeleteShapeLayer(layer)
         {
            map.DeleteShapeLayer(layer);
            ShapeLayerInfo();
         }
         
         function DeleteAllLayers()
         {
            map.DeleteAllShapeLayers();
            ShapeLayerInfo();
         }
         
         function DeleteAllShapes()
         {
            map.DeleteAllShapes();
         }
         
         function DeleteOneShape(id)
         {
            shape = map.GetShapeByID(id);
            map.DeleteShape(shape);
            alert("Shape ID: " + id + " has been deleted.");
         }    
         
         function ShapeLayerInfo()
         {
            var layers = "Number of shape layers: " + map.GetShapeLayerCount() + " (including the base layer)";
            layerInfo.innerHTML = layers;
         }  
         
         function ShapeLayerAlert(e)
         {
            if(e.elementID != null)
            {
               shape = map.GetShapeByID(e.elementID);
               layer = shape.GetShapeLayer();
               alert("Shape ID " + shape.GetID() + "
belongs to shape layer '" + layer.GetTitle() + "'.");
            }
         }
      </script>
   </head>
   <body onload="GetMap();" style="font-family:Arial">
      <div id='myMap' style="position:relative; 400px; height:400px;"></div>
      <div id="shapeLinks"></div>
      <div id="layerInfo"></div>
       <INPUT id="addshapelayers" type="button" value="Click to Add Shape Layers" name="addshapelayers"
       onclick="AddShapeLayers();"/>
       <INPUT id="deletelayer01" type="button" value="Click to Delete layer01" name="deletelayer01"
       onclick="DeleteShapeLayer(layer01);"/>
       <INPUT id="deletelayer02" type="button" value="Click to Delete layer02" name="deletelayer02"
       onclick="DeleteShapeLayer(layer02);"/>
       <INPUT id="deletealllayers" type="button" value="Click to Delete All Layers" name="deletealllayers"
       onclick="DeleteAllLayers();"/>
       <INPUT id="deleteallshapes" type="button" value="Click to Delete All Shapes" name="deleteallshapes"
       onclick="DeleteAllShapes();"/><br />
   </body>
</html>
想了解更多关于VEMap类的详细内容，参见：https://msdn.microsoft.com/zh-cn/library/bb429586.aspx