Autodesk 15606-011408-9300 - MAP R6.3 UPG, Developer'S Manual

Page: 167 / 208

DWG Filtering Application
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7 Set the layer filter from the selected filter list using the
dwgMapLayerDataSource.setLayerFilter(filterList)
method.
8 Refresh the map using the
map.refresh
method.
DWG Filtering Application selChanged Example Code
// Selection Changed Function
// Called whenever items are selected or deselected in the list box
function selChanged()
{
var map = getMap();
// Use the single map layer Floor Plan
var mapLayer = map.getMapLayer("Floor Plan");
// Get DWG data source object for the layer
var mapLayerSetup = mapLayer.getLayerSetup();
var dwgMapLayerDataSource = mapLayerSetup.getDwgDataSources();
// Create a collection object to hold filters selected fromlist box
var mapDwgLayerFilters = map.createObject("MGCollection");
// Iterate through list box selections and add each to the collection
var selOptions = document.forms[0].filters.options;
for (var i = 0; i < selOptions.length; i++)
{
if (selOptions[i].selected)
{
var selectedFilter = selOptions[i].value;
if (selectedFilter != null)
mapDwgLayerFilters.add(selectedFilter);
}
}
// Create comma-delimited string containing selected filters.
var filterList = "";
for (var i = 0; i < mapDwgLayerFilters.size(); i++)
{
var filter = mapDwgLayerFilters.item(i);
if (i == mapDwgLayerFilters.size() - 1)
filterList = filt filter;
else
filterList = filt ", ";
}
// Set the layer filter from the selected filter list
dwgMapLayerDataSource.setLayerFilter(filterList);
map.refresh();
}