diff --git a/designer-base/src/main/java/com/fr/design/data/datapane/ChoosePane.java b/designer-base/src/main/java/com/fr/design/data/datapane/ChoosePane.java
index b5bc39e4e..f65610526 100644
--- a/designer-base/src/main/java/com/fr/design/data/datapane/ChoosePane.java
+++ b/designer-base/src/main/java/com/fr/design/data/datapane/ChoosePane.java
@@ -25,6 +25,7 @@ import com.fr.design.gui.icombobox.UIComboBoxEditor;
 import com.fr.design.gui.icombobox.UIComboBoxRenderer;
 import com.fr.design.gui.ilable.UILabel;
 import com.fr.design.gui.itree.refreshabletree.ExpandMutableTreeNode;
+import com.fr.design.i18n.Toolkit;
 import com.fr.design.layout.FRGUIPaneFactory;
 import com.fr.design.layout.TableLayout;
 import com.fr.design.layout.TableLayoutHelper;
@@ -39,7 +40,16 @@ import com.fr.stable.StringUtils;
 import com.fr.workspace.WorkContext;
 import com.fr.workspace.server.connection.DBConnectAuth;
 
-import javax.swing.*;
+import java.awt.BorderLayout;
+import java.awt.Component;
+import java.awt.Dimension;
+import java.util.Collections;
+import java.util.concurrent.CancellationException;
+import javax.swing.JList;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.JTree;
+import javax.swing.SwingWorker;
 import javax.swing.event.ChangeEvent;
 import javax.swing.event.ChangeListener;
 import javax.swing.event.PopupMenuEvent;
@@ -50,7 +60,6 @@ import javax.swing.tree.DefaultTreeModel;
 import javax.swing.tree.TreeCellRenderer;
 import javax.swing.tree.TreeNode;
 import javax.swing.tree.TreePath;
-import java.awt.*;
 import java.awt.event.FocusAdapter;
 import java.awt.event.FocusEvent;
 import java.awt.event.ItemEvent;
@@ -70,6 +79,9 @@ import java.util.concurrent.FutureTask;
  * @since 2012-7-11下午4:49:39
  */
 public class ChoosePane extends BasicBeanPane<DataBaseItems> implements Refreshable, Previewable, Prepare4DataSourceChange {
+
+    private static final List<String> PENDING_CONTENT = new ArrayList<>(Collections.singletonList(Toolkit.i18nText("Fine-Design_Basic_Loading") + "..."));
+
     private static final double COLUMN_SIZE = 24;
 
     /**
@@ -91,6 +103,8 @@ public class ChoosePane extends BasicBeanPane<DataBaseItems> implements Refresha
 
     private SwingWorker populateWorker;
 
+    private SwingWorker<List<String>, Void> initWorker;
+
     private PopupMenuListener popupMenuListener = new PopupMenuListener() {
 
         @Override
@@ -213,10 +227,34 @@ public class ChoosePane extends BasicBeanPane<DataBaseItems> implements Refresha
 
     @SuppressWarnings("unchecked")
     protected void initDsNameComboBox() {
+        if (initWorker != null && !initWorker.isDone()) {
+            initWorker.cancel(true);
+        }
         dsNameComboBox.setRefreshingModel(true);
-        FilterableComboBoxModel dsNameComboBoxModel = new FilterableComboBoxModel(getHasAuthConnections());
-        dsNameComboBox.setModel(dsNameComboBoxModel);
-        dsNameComboBox.setRefreshingModel(false);
+        dsNameComboBox.setModel(new FilterableComboBoxModel(PENDING_CONTENT));
+        initWorker = new SwingWorker<List<String>, Void>() {
+
+            @Override
+            protected List<String> doInBackground() throws Exception {
+                return getHasAuthConnections();
+            }
+
+            @Override
+            protected void done() {
+                try {
+                    FilterableComboBoxModel dsNameComboBoxModel = new FilterableComboBoxModel(get());
+                    String selected = dsNameComboBox.getSelectedItem();
+                    dsNameComboBox.setModel(dsNameComboBoxModel);
+                    dsNameComboBox.setSelectedItem(selected);
+                    dsNameComboBox.setRefreshingModel(false);
+                } catch (Exception e) {
+                    if (!(e instanceof CancellationException)) {
+                        FineLoggerFactory.getLogger().error(e.getMessage(), e);
+                    }
+                }
+            }
+        };
+        initWorker.execute();
     }
 
     protected void initComponentsLayout(PreviewLabel previewLabel, int labelSize) {
diff --git a/designer-base/src/main/java/com/fr/design/data/datapane/connect/ItemEditableComboBoxPanel.java b/designer-base/src/main/java/com/fr/design/data/datapane/connect/ItemEditableComboBoxPanel.java
index f06d1405b..248d3318c 100644
--- a/designer-base/src/main/java/com/fr/design/data/datapane/connect/ItemEditableComboBoxPanel.java
+++ b/designer-base/src/main/java/com/fr/design/data/datapane/connect/ItemEditableComboBoxPanel.java
@@ -3,12 +3,19 @@ package com.fr.design.data.datapane.connect;
 import com.fr.base.BaseUtils;
 import com.fr.design.gui.ibutton.UIButton;
 import com.fr.design.gui.icombobox.UIComboBox;
+import com.fr.design.i18n.Toolkit;
 import com.fr.design.layout.FRGUIPaneFactory;
 
-import javax.swing.*;
-import java.awt.*;
+import com.fr.log.FineLoggerFactory;
+import java.awt.BorderLayout;
+import java.awt.Dimension;
+import java.util.Iterator;
+import java.util.concurrent.CancellationException;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import javax.swing.DefaultComboBoxModel;
+import javax.swing.JPanel;
+import javax.swing.SwingWorker;
 
 public abstract class ItemEditableComboBoxPanel extends JPanel {
 	/**
@@ -16,6 +23,8 @@ public abstract class ItemEditableComboBoxPanel extends JPanel {
 	 */
 	private static final long serialVersionUID = 1L;
 
+	private static final String PENDING = Toolkit.i18nText("Fine-Design_Basic_Loading") + "...";
+
 	protected static final Object EMPTY = new Object() {
 		public String toString() {
 			return "";
@@ -26,6 +35,8 @@ public abstract class ItemEditableComboBoxPanel extends JPanel {
 	protected UIButton editButton;
     protected UIButton refreshButton;
 
+    private SwingWorker<Iterator<String>, Void> refreshWorker;
+
 	public ItemEditableComboBoxPanel() {
 		super();
 
@@ -75,26 +86,42 @@ public abstract class ItemEditableComboBoxPanel extends JPanel {
 	 * 刷新itemComboBox的内容
 	 */
 	protected void refreshItems() {
-		// 记录原来选中的Item,重新加载后需要再次选中
-		Object lastSelectedItem = itemComboBox.getSelectedItem();
+
+		if (refreshWorker != null && !refreshWorker.isDone()) {
+			refreshWorker.cancel(true);
+		}
 
 		DefaultComboBoxModel model = ((DefaultComboBoxModel) itemComboBox.getModel());
 		model.removeAllElements();
 
 		// 先加EMPTY,再加items
 		model.addElement(EMPTY);
+		model.addElement(PENDING);
 
-		java.util.Iterator<String> itemIt = items();
-		while(itemIt.hasNext()) {
-			model.addElement(itemIt.next());
-		}
+		refreshWorker = new SwingWorker<Iterator<String>, Void>() {
+			@Override
+			protected Iterator<String> doInBackground() throws Exception {
+				return items();
+			}
 
-		// 再次选中之前选中的Item
-		int idx = model.getIndexOf(lastSelectedItem);
-		if(idx < 0) {
-			idx = 0;
-		}
-		itemComboBox.setSelectedIndex(idx);
+			@Override
+			protected void done() {
+				try {
+					Iterator<String> itemIt = get();
+					model.removeElement(PENDING);
+					while(itemIt.hasNext()) {
+						model.addElement(itemIt.next());
+					}
+					itemComboBox.setMaximumRowCount(itemComboBox.getMaximumRowCount() + 1);
+				} catch (Exception e) {
+					if (!(e instanceof CancellationException)) {
+						FineLoggerFactory.getLogger().error(e.getMessage(), e);
+					}
+				}
+
+			}
+		};
+		refreshWorker.execute();
 	}
 
 	/*