<%--
Copyright (C) 2004-2011 by Autodesk, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of version 2.1 of the GNU Lesser
General Public License as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
--%>
<%@ Page language="c#" %>
<%@ Import Namespace="System" %>
<%@ Import Namespace="System.Collections.Specialized" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="OSGeo.MapGuide" %>
Layer Visibility
Layer Visibility
<%
try
{
MapGuideApi.MgInitializeWebTier(Constants.WebConfigPath);
sessionId = Request.Params["SESSION"];
mapName = Request.Params["MAPNAME"];
MgUserInformation userInfo = new MgUserInformation(sessionId);
MgSiteConnection siteConnection = new MgSiteConnection();
siteConnection.Open(userInfo);
MgMap map = new MgMap(siteConnection);
map.Open(mapName);
MgLayerCollection layers = map.GetLayers(); // Get layer collection
Response.Write("
Layers, in draw order:
");
Response.Write("
");
Response.Write("
Layer
GetVisible()
IsVisible()
");
int count = layers.GetCount();
for (int i = 0; i < count; i++)
{
MgLayerBase layer = layers.GetItem(i);
Response.Write("
GetVisible() returns the state of the visibility flag for a given layer (the check box in the
Layers pane). IsVisible() returns the actual visibility of a layer, based on its visibility flag,
the visibility flag of any groups that include the layer, and whether the layer has a defined style for the
current view scale.