///<summary> The specified featurelayer </summary>
/// <param name="LayerName"> The feature layer be retrieved </param>
///<returns> Function to retrieve a layer by name </returns>
public IFeatureLayer FeatureLayer(string LayerName)
{
if (FocusMap == null)
{
return(null);
}
if (FocusMap.LayerCount == 0)
{
return(null);
}
try
{
UID pID = new UIDClass();
pID.Value = "{6CA416B1-E160-11D2-9F4E-00C04F6BC78E}";
IEnumLayer pEnumLayer = FocusMap.get_Layers(pID, true);
pEnumLayer.Reset();
ILayer pLayer = pEnumLayer.Next();
while (!(pLayer == null))
{
if (string.Compare(pLayer.Name, LayerName, true) == 0)
{
return(pLayer as IFeatureLayer);
}
pLayer = pEnumLayer.Next();
}
}
catch (Exception ex)
{
if (SupressMessaging == false)
{
MessageBox.Show(ex.Message, "Layer", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
return(null);
}
/// <summary> Returns a list of feature layers based on the geometry type </summary>
/// <param name="geometryType">Geometry type. Expected values "Point", "Line" or "Polygon".</param>
/// <returns>Arraylist</returns>
public ArrayList FeatureLayers(string geometryType)
{
ArrayList pList = new ArrayList();
if (FocusMap == null)
{
return(pList);
}
if (FocusMap.LayerCount == 0)
{
return(pList);
}
try
{
UID pID = new UIDClass();
pID.Value = "{E156D7E5-22AF-11D3-9F99-00C04F6BC78E}"; //GeoFeatureLayer
IEnumLayer pEnumLayer = FocusMap.get_Layers(pID, true);
pEnumLayer.Reset();
ILayer pLayer = pEnumLayer.Next();
while (!(pLayer == null))
{
if (pLayer is IFeatureLayer)
{
IFeatureLayer featurelayer = (IFeatureLayer)pLayer;
if (string.Compare(geometryType, "Point", true) == 0)
{
if ((featurelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryMultipoint) || (featurelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPoint))
{
pList.Add(pLayer.Name);
}
}
if (string.Compare(geometryType, "Line", true) == 0)
{
if ((featurelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolyline) || (featurelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryLine))
{
pList.Add(pLayer.Name);
}
}
if (string.Compare(geometryType, "Polygon", true) == 0)
{
if (featurelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolygon)
{
pList.Add(pLayer.Name);
}
}
}
pLayer = pEnumLayer.Next();
}
return(pList);
}
catch (Exception ex)
{
if (SupressMessaging == false)
{
MessageBox.Show(ex.Message, "All Layers", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
return(pList);
}
/// <summary> The polygon feature layers in current map </summary>
/// <returns> Function to retrieve a list of polygon feature layers in current map </returns>
public ArrayList PolygonLayers()
{
ArrayList pList = new ArrayList();
if (FocusMap == null)
{
return(pList);
}
if (FocusMap.LayerCount == 0)
{
return(pList);
}
try
{
UID pID = new UIDClass();
pID.Value = "{E156D7E5-22AF-11D3-9F99-00C04F6BC78E}"; //GeoFeatureLayer
IEnumLayer pEnumLayer = FocusMap.get_Layers(pID, true);
pEnumLayer.Reset();
ILayer pLayer = pEnumLayer.Next();
while (!(pLayer == null))
{
IFeatureLayer2 pFLayer = (IFeatureLayer2)pLayer;
if (pFLayer.ShapeType == esriGeometryType.esriGeometryPolygon)
{
if (pFLayer.FeatureClass != null)
{
pList.Add(pLayer.Name);
}
}
pLayer = pEnumLayer.Next();
}
return(pList);
}
catch (Exception ex)
{
if (SupressMessaging == false)
{
MessageBox.Show(ex.Message, "Polygon Layers", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
return(pList);
}
