// Adds all appropriate Layer objects to the list.
// Calls itself recursively to search through GroupLayers.
private void AddLayersToList(LayersBase layers, ListBox listbox)
{
foreach (IMapLayer layer in layers)
{
if (layer is GroupLayer)
{
GroupLayer grpLyr = layer as GroupLayer;
AddLayersToList(grpLyr, listbox);
}
else if (layer is FeatureLayer)
{
FeatureLayer featLyr = layer as FeatureLayer;
if (featLyr != null && featLyr.IsVisible &&
featLyr.Type != LayerType.Raster &&
featLyr.Type != LayerType.Grid)
{
// The specified layer should be select-able.
// But if we've been asked to build a list of EDIT-able layers,
// take some other criteria into account... Seamless layers are
// not editable, and some tables are simply read-only.
if ((FilterType == FilterType.Selectable) ||
LayerCanBeMadeEditable(featLyr))
{
listbox.Items.Add(featLyr);
}
}
}
}
}
// Return a comma-separated list of layer names, representing the list of
// layers that are active according to the specified filter.
// This method calls itself recursively to search within GroupLayers.
private string BuildLayerList(string str, LayersBase layers, IMapLayerFilter filter)
{
bool bAllLayers=true;
foreach (IMapLayer layer in layers)
{
if (layer is GroupLayer)
{
GroupLayer grpLyr = layer as GroupLayer;
str = BuildLayerList(str, grpLyr, filter);
if (str.StartsWith("<All>: ")) str=str.Remove(0,7);
else bAllLayers=false;
}
else if (layer is FeatureLayer)
{
FeatureLayer featLyr = layer as FeatureLayer;
if (featLyr != null && featLyr.IsVisible &&
featLyr.Type != LayerType.Raster &&
featLyr.Type != LayerType.Wms &&
featLyr.Type != LayerType.Grid)
{
if (filter.IncludeLayer(featLyr) )
{
if (str.Length > 0)
{
str += ", ";
}
str += featLyr.Name;
}
else bAllLayers=false;
}
}
}
if (str.Length==0) str = bAllLayers ? "<No layers available>" : "<None>";
else if (bAllLayers==true)
{
if (str.Length > 16) str="<All>";
else str="<All>: " + str;
}
return str;
}
// Return a comma-separated list of layer names, representing the list of
// layers that are active according to the specified filter.
// This method calls itself recursively to search within GroupLayers.
private string BuildLayerList(string str, LayersBase layers, IMapLayerFilter filter)
{
bool bAllLayers = true;
foreach (IMapLayer layer in layers)
{
if (layer is GroupLayer)
{
GroupLayer grpLyr = layer as GroupLayer;
str = BuildLayerList(str, grpLyr, filter);
if (str.StartsWith("<All>: "))
{
str = str.Remove(0, 7);
}
else
{
bAllLayers = false;
}
}
else if (layer is FeatureLayer)
{
FeatureLayer featLyr = layer as FeatureLayer;
if (featLyr != null && featLyr.IsVisible &&
featLyr.Type != LayerType.Raster &&
featLyr.Type != LayerType.Wms &&
featLyr.Type != LayerType.Grid)
{
if (filter.IncludeLayer(featLyr))
{
if (str.Length > 0)
{
str += ", ";
}
str += featLyr.Name;
}
else
{
bAllLayers = false;
}
}
}
}
if (str.Length == 0)
{
str = bAllLayers ? "<No layers available>" : "<None>";
}
else if (bAllLayers == true)
{
if (str.Length > 16)
{
str = "<All>";
}
else
{
str = "<All>: " + str;
}
}
return(str);
}
// Adds all appropriate Layer objects to the list.
// Calls itself recursively to search through GroupLayers.
private void AddLayersToList(LayersBase layers, ListBox listbox)
{
foreach (IMapLayer layer in layers)
{
if (layer is GroupLayer)
{
GroupLayer grpLyr = layer as GroupLayer;
AddLayersToList(grpLyr, listbox);
}
else if (layer is FeatureLayer)
{
FeatureLayer featLyr = layer as FeatureLayer;
if (featLyr != null && featLyr.IsVisible &&
featLyr.Type != LayerType.Raster &&
featLyr.Type != LayerType.Grid)
{
// The specified layer should be select-able.
// But if we've been asked to build a list of EDIT-able layers,
// take some other criteria into account... Seamless layers are
// not editable, and some tables are simply read-only.
if ( (FilterType == FilterType.Selectable) ||
LayerCanBeMadeEditable(featLyr) )
{
listbox.Items.Add(featLyr);
}
}
}
}
}
