Bug fixes including choosers that don't appear and livewindow widgets that don't appear.

src/main/java/edu/wpi/first/smartdashboard/SmartDashboard.java

@@ -1,5 +1,6 @@
 package edu.wpi.first.smartdashboard;
 
+import edu.wpi.first.wpilibj.networktables.NetworkTable;
 import edu.wpi.first.networktables.NetworkTablesJNI;
 import edu.wpi.first.smartdashboard.extensions.FileSniffer;
 import edu.wpi.first.smartdashboard.gui.DashboardFrame;
@@ -101,32 +102,6 @@ public void run() {
       System.exit(2);
     }
 
-    if (argParser.hasValue("ip")) {
-      monitor.setProgress(650);
-      monitor.setNote("Connecting to robot at: " + argParser.getValue("ip"));
-      Robot.setHost(argParser.getValue("ip"));
-      System.out.println("IP: " + argParser.getValue("ip"));
-    } else {
-      monitor.setProgress(600);
-      monitor.setNote("Getting Team Number");
-      StringProperty teamProp = frame.getPrefs().team;
-      String teamNumber = teamProp.getValue();
-
-      teamNumberLoop:
-      while (teamNumber.equals("0")) {
-          String input = JOptionPane.showInputDialog("Input Team Number\\Host");
-          if (input == null) {
-            break teamNumberLoop;
-          }
-          teamNumber = input;
-      }
-
-      monitor.setProgress(650);
-      monitor.setNote("Connecting to robot: " + teamNumber);
-      Robot.setHost(teamNumber);
-      teamProp.setValue(teamNumber);
-    }
-
     try {
       SwingUtilities.invokeAndWait(new Runnable() {
 
@@ -144,7 +119,7 @@ public void run() {
               frame.load(file.getPath());
             }
 
-            monitor.setProgress(1000);
+            monitor.setProgress(750);
 
           } catch (Exception e) {
             e.printStackTrace();
@@ -157,5 +132,39 @@ public void run() {
       ex.printStackTrace();
       System.exit(2);
     }
+
+
+    if (argParser.hasValue("ip")) {
+      monitor.setProgress(1000);
+      monitor.setNote("Connecting to robot at: " + argParser.getValue("ip"));
+      Robot.setHost(argParser.getValue("ip"));
+      System.out.println("IP: " + argParser.getValue("ip"));
+    } else {
+      NetworkTable.setDSClientEnabled(true);
+      try {
+        Thread.sleep(500);
+      } catch (InterruptedException e) {
+        // No harm if the sleep is interrupted
+      }
+      monitor.setProgress(800);
+      monitor.setNote("Getting Team Number");
+      StringProperty teamProp = frame.getPrefs().team;
+      String teamNumber = teamProp.getValue();
+
+      teamNumberLoop:
+      while (teamNumber.equals("0")) {
+          String input = JOptionPane.showInputDialog("Input Team Number\\Host");
+          if (input == null) {
+            break teamNumberLoop;
+          }
+          teamNumber = input;
+      }
+
+      monitor.setProgress(850);
+      monitor.setNote("Connecting to robot: " + teamNumber);
+      Robot.setHost(teamNumber);
+      teamProp.setValue(teamNumber);
+      monitor.setProgress(1000);
+    }
   }
 }

src/main/java/edu/wpi/first/smartdashboard/gui/DashboardFrame.java

@@ -389,6 +389,7 @@ public void load(String path) {
               .getFieldName());
           DataType type = DataType.getType(value2);
           mostRecentParent.addWidget(w);
+          mostRecentParent.add(w);
           w.setField(w.getFieldName(), w, type, value2, mostRecentParent, w.getSavedLocation());
           mostRecentParent.setSize(mostRecentParent.getPreferredSize());
         }

src/main/java/edu/wpi/first/smartdashboard/gui/elements/Chooser.java

@@ -65,7 +65,10 @@ public void valueChanged(ITable source, String key, Object value, boolean isNew)
     }
 
     if (!source.containsKey(SELECTED)) {
-      source.putString(SELECTED, source.getString(DEFAULT, choices.get(0)));
+      source.putString(SELECTED, 
+                       source.getString(DEFAULT, 
+                                        !choices.isEmpty() ? choices.get(0)
+                                                           : "No Selection"));
     }
   }
 

src/main/java/edu/wpi/first/smartdashboard/gui/elements/Scheduler.java

@@ -75,9 +75,9 @@ public void run() {
                 button.addActionListener(new ActionListener() {
                   public void actionPerformed(ActionEvent e) {
                     // Cancel commands
-                    toCancel = Arrays.asList(table.getNumberArray("Cancel", new Double[0]));
+                    toCancel = new ArrayList<Double>(Arrays.asList(table.getNumberArray("Cancel", new Double[0])));
                     toCancel.add(ids.get(index));
-                    table.putValue("Cancel", toCancel);
+                    table.putValue("Cancel", toCancel.toArray(new Double[toCancel.size()]));
                   }
                 });
                 buttons.add(button);

src/main/java/edu/wpi/first/smartdashboard/livewindow/elements/LWSubsystem.java

@@ -87,24 +87,30 @@ private void addSubsystemElement(String key, ITable value) {
           "\nSubsystem \"" + getFieldName() + "\" does not contain widget \"" + key + "\"");
       System.out.println("Table: " + value);
       System.out.println("Type: " + value.getString(".type", null));
-      System.out.println(
-          "Trying to add a widget of type \"" + DataType.getType(value) + "\" and key " + key);
-      Class<? extends Widget> widgetClass = DataType.getType(value).getDefault();
-      Widget widget = widgetClass.newInstance();
-      widget.setFieldName(key);
-      widget.setType(DataType.getType(value));
-      widget.init();
-      widget.setValue(value);
-      widgets.add(widget);
-      add(widget);
-      preferredSize = layout.preferredLayoutSize(this);
-      setPreferredSize(preferredSize);
-      setMinimumSize(preferredSize);
-      setSavedSize(preferredSize);
-      setSize(preferredSize);
-      System.out.println("New size [" + preferredSize.width + ", " + preferredSize.height + "]");
-      revalidate();
-      repaint();
+      DataType dataType = DataType.getType(value);
+      if (dataType != null) { 
+        System.out.println(
+            "Trying to add a widget of type \"" + dataType + "\" and key " + key);
+
+        Class<? extends Widget> widgetClass = DataType.getType(value).getDefault();
+        Widget widget = widgetClass.newInstance();
+        widget.setFieldName(key);
+        widget.setType(DataType.getType(value));
+        widget.init();
+        widget.setValue(value);
+        widgets.add(widget);
+        add(widget);
+        preferredSize = layout.preferredLayoutSize(this);
+        setPreferredSize(preferredSize);
+        setMinimumSize(preferredSize);
+        setSavedSize(preferredSize);
+        setSize(preferredSize);
+        System.out.println("New size [" + preferredSize.width + ", " + preferredSize.height + "]");
+        revalidate();
+        repaint();
+      } else {
+        System.out.println("Skipping: No registered dataType for type " + value.getString(".type", null) );
+      }
       System.out.println();
     } catch (InstantiationException | IllegalAccessException ex) {
       Logger.getLogger(LWSubsystem.class.getName()).log(Level.SEVERE, null, ex);

src/main/java/edu/wpi/first/smartdashboard/livewindow/elements/LiveWindowWidgetRegistrar.java

@@ -1,5 +1,6 @@
 package edu.wpi.first.smartdashboard.livewindow.elements;
 
+import edu.wpi.first.smartdashboard.gui.elements.Scheduler;
 import edu.wpi.first.smartdashboard.types.DisplayElementRegistry;
 
 /**
@@ -24,6 +25,7 @@ public static void init() {
     DisplayElementRegistry.registerWidget(PowerDistribution.class);
     DisplayElementRegistry.registerWidget(ThreeAxisAccelerometer.class);
     DisplayElementRegistry.registerWidget(CANSpeedController.class);
+    DisplayElementRegistry.registerWidget(Scheduler.class);
   }
 
 }

src/main/java/edu/wpi/first/smartdashboard/robot/Robot.java

@@ -1,5 +1,8 @@
 package edu.wpi.first.smartdashboard.robot;
 
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
 import edu.wpi.first.wpilibj.networktables.NetworkTable;
 import edu.wpi.first.wpilibj.tables.IRemoteConnectionListener;
 import edu.wpi.first.wpilibj.tables.ITable;
@@ -21,6 +24,7 @@ public class Robot {
   static {
     NetworkTable.setClientMode();
     NetworkTable.setNetworkIdentity(identity);
+    NetworkTable.setDSClientEnabled(false);
     NetworkTable.initialize();
   }
 
@@ -63,20 +67,30 @@ public static void setPort(int port) {
     NetworkTable.initialize();
   }
 
-  public static ITable getTable(String tableName) {
-    return NetworkTable.getTable(tableName);
+  // NetworkTable.getTable() returns a new table every time it's called.
+  // We need to make sure there is only one table for each table name.
+  private static final ConcurrentMap<String, ITable> tables = new ConcurrentHashMap<String, ITable>();
+
+  public static synchronized ITable getTable(String tableName) {
+    if (tables.containsKey(tableName)) {
+      return tables.get(tableName);
+    } else {
+      ITable newTable = NetworkTable.getTable(tableName);
+      tables.put(tableName, newTable);
+      return newTable;
+    }
   }
 
   public static ITable getTable() {
-    return NetworkTable.getTable(TABLE_NAME);
+    return getTable(TABLE_NAME);
   }
 
   public static ITable getPreferences() {
-    return NetworkTable.getTable(PREFERENCES_NAME);
+    return getTable(PREFERENCES_NAME);
   }
 
   public static ITable getLiveWindow() {
-    return NetworkTable.getTable(LIVE_WINDOW_NAME);
+    return getTable(LIVE_WINDOW_NAME);
   }
 
   public static void addConnectionListener(IRemoteConnectionListener listener, boolean

src/main/java/edu/wpi/first/smartdashboard/types/named/SchedulerType.java

@@ -1,6 +1,7 @@
 package edu.wpi.first.smartdashboard.types.named;
 
 import edu.wpi.first.smartdashboard.types.NamedDataType;
+import edu.wpi.first.smartdashboard.gui.elements.Scheduler;
 
 /**
  * @author Joe Grinstead
@@ -10,7 +11,7 @@ public class SchedulerType extends NamedDataType {
   public static final String LABEL = "Scheduler";
 
   private SchedulerType() {
-    super(LABEL);
+    super(LABEL, Scheduler.class);
   }
 
   public static NamedDataType get() {