Changes between Initial Version and Version 1 of maestro/MaestroAPI/samples/IterateLayerRules

Timestamp:

Mar 4, 2009, 11:40:33 PM (15 years ago)

Author:

ksgeograf

Comment:

--

maestro/MaestroAPI/samples/IterateLayerRules

@@ +1 @@
+== Iterating styles: examining all styles defined in a layer ==
+This page describes how to use the MaestroAPI from the [wiki:maestro MapGuide Maestro] project in your own application.
+
+The code below can be used as a template for iterating all style items in a LayerDefintion.
+
+The example sets labels on all styles that have a feature label to be "My custom label"
+
+
+(C#)
+{{{
+ServerConnectionI con; //See other samples on how to get this
+LayerDefinition ldef = con.GetLayerDefinition("Library://myLayer.LayerDefinition");
+VectorLayerDefinitionType vldef = ldef.Item as VectorLayerDefinitionType; //vldef becomes null, if it is not a vector layer
+foreach (VectorScaleRangeType vsr in vldef.VectorScaleRange)
+{
+    //The objects have no common base type, so we iterate in an untyped manner
+    foreach (object o in vsr.Items)
+    {
+        if (o is PointTypeStyleType)
+        {
+            PointTypeStyleType pst = o as PointTypeStyleType;
+            if (pst.PointRule != null)
+                foreach (PointRuleType pr in pst.PointRule)
+                {
+                    if (pr.Label != null)
+                        pr.Label.Text = "My custom label";
+                }
+        }
+        else if (o is LineTypeStyleType)
+        {
+            LineTypeStyleType lst = o as LineTypeStyleType;
+            if (lst.LineRule != null)
+                foreach (LineRuleType pr in lst.LineRule)
+                {
+                    if (lr.Label != null)
+                        lr.Label.Text = "My custom label";
+                }
+        }
+        else if (o is AreaTypeStyleType)         
+        {
+            AreaTypeStyleType ast = o as AreaTypeStyleType;
+            if (ast.AreaRule != null)
+                foreach (AreaRuleType ar in ast.AreaRule)
+                {
+                    if (ar.Label != null)
+                        ar.Label.Text = "My custom label";
+                }
+        }
+    }
+}
+}}}