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 2a8446f89..b5bc39e4e 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
@@ -1,6 +1,7 @@
 package com.fr.design.data.datapane;
 
 import com.fr.base.TableData;
+import com.fr.concurrent.NamedThreadFactory;
 import com.fr.data.core.DataCoreUtils;
 import com.fr.data.core.db.DBUtils;
 import com.fr.data.core.db.TableProcedure;
@@ -17,8 +18,8 @@ import com.fr.design.data.datapane.preview.PreviewLabel.Previewable;
 import com.fr.design.data.datapane.preview.PreviewTablePane;
 import com.fr.design.data.tabledata.Prepare4DataSourceChange;
 import com.fr.design.dialog.FineJOptionPane;
-import com.fr.design.gui.icombobox.FRTreeComboBox;
 import com.fr.design.gui.icombobox.FilterableComboBoxModel;
+import com.fr.design.gui.icombobox.SearchPreTaskTreeComboBox;
 import com.fr.design.gui.icombobox.UIComboBox;
 import com.fr.design.gui.icombobox.UIComboBoxEditor;
 import com.fr.design.gui.icombobox.UIComboBoxRenderer;
@@ -59,6 +60,10 @@ import java.util.Collection;
 import java.util.Enumeration;
 import java.util.List;
 import java.util.Set;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.FutureTask;
 
 /**
  * @author zhou
@@ -80,7 +85,9 @@ public class ChoosePane extends BasicBeanPane<DataBaseItems> implements Refresha
     /**
      * 表名
      */
-    protected FRTreeComboBox tableNameComboBox;
+    protected SearchPreTaskTreeComboBox tableNameComboBox;
+
+    private static final ExecutorService SERVICE = Executors.newSingleThreadExecutor(new NamedThreadFactory("ChoosePane"));
 
     private SwingWorker populateWorker;
 
@@ -88,12 +95,15 @@ public class ChoosePane extends BasicBeanPane<DataBaseItems> implements Refresha
 
         @Override
         public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
-            new Thread() {
+            FutureTask<Void> task = new FutureTask<Void>(new Callable<Void>() {
                 @Override
-                public void run() {
+                public Void call() throws Exception {
                     calculateTableDataNames();
+                    return null;
                 }
-            }.start();
+            });
+            tableNameComboBox.setPreSearchTask(task);
+            SERVICE.submit(task);
         }
 
         @Override
@@ -157,7 +167,7 @@ public class ChoosePane extends BasicBeanPane<DataBaseItems> implements Refresha
         schemaBox = new StringUIComboBox();
         schemaBox.setEditor(new ComboBoxEditor());
 
-        tableNameComboBox = new FRTreeComboBox(new JTree(new DefaultMutableTreeNode()), tableNameTreeRenderer, false);
+        tableNameComboBox = new SearchPreTaskTreeComboBox(new JTree(new DefaultMutableTreeNode()), tableNameTreeRenderer, false);
         tableNameComboBox.setEditable(true);
         tableNameComboBox.setRenderer(listCellRenderer);
         registerDSChangeListener();
diff --git a/designer-base/src/main/java/com/fr/design/env/RemoteWorkspace.java b/designer-base/src/main/java/com/fr/design/env/RemoteWorkspace.java
index 6d1685e74..b8f816650 100644
--- a/designer-base/src/main/java/com/fr/design/env/RemoteWorkspace.java
+++ b/designer-base/src/main/java/com/fr/design/env/RemoteWorkspace.java
@@ -127,7 +127,9 @@ public class RemoteWorkspace implements Workspace {
     @Override
     public boolean equals(Object obj) {
 
-        return obj instanceof RemoteWorkspace && AssistUtils.equals(((RemoteWorkspace) obj).connection, this.connection);
+        return obj instanceof RemoteWorkspace
+                && AssistUtils.equals(((RemoteWorkspace) obj).connection, this.connection)
+                && AssistUtils.equals(((RemoteWorkspace) obj).client.getConnection(), this.client.getConnection());
     }
 
     public WorkspaceClient getClient(){
diff --git a/designer-base/src/main/java/com/fr/design/gui/icombobox/FRTreeComboBox.java b/designer-base/src/main/java/com/fr/design/gui/icombobox/FRTreeComboBox.java
index f0c60d2e8..8fe79d41e 100644
--- a/designer-base/src/main/java/com/fr/design/gui/icombobox/FRTreeComboBox.java
+++ b/designer-base/src/main/java/com/fr/design/gui/icombobox/FRTreeComboBox.java
@@ -626,6 +626,7 @@ public class FRTreeComboBox extends UIComboBox {
          */
         protected void search() {
             this.item = textField.getText();
+            tree.updateUI();
             TreeNode root = (TreeNode) tree.getModel().getRoot();
             TreePath parent = new TreePath(root);
             TreeNode node = (TreeNode) parent.getLastPathComponent();
diff --git a/designer-base/src/main/java/com/fr/design/gui/icombobox/SearchPreTaskTreeComboBox.java b/designer-base/src/main/java/com/fr/design/gui/icombobox/SearchPreTaskTreeComboBox.java
index 9ee2a5949..2d936d896 100644
--- a/designer-base/src/main/java/com/fr/design/gui/icombobox/SearchPreTaskTreeComboBox.java
+++ b/designer-base/src/main/java/com/fr/design/gui/icombobox/SearchPreTaskTreeComboBox.java
@@ -1,6 +1,5 @@
 package com.fr.design.gui.icombobox;
 
-import com.fr.design.ui.util.UIUtil;
 import com.fr.log.FineLoggerFactory;
 
 import javax.swing.JTree;
@@ -48,7 +47,6 @@ public class SearchPreTaskTreeComboBox extends FRTreeComboBox {
                 return;
             }
             setPopupVisible(true);
-            // 模糊搜索异步
             new SwingWorker<Void, Void>() {
                 @Override
                 protected Void doInBackground() {
@@ -65,14 +63,14 @@ public class SearchPreTaskTreeComboBox extends FRTreeComboBox {
                         // 任务执行后置空，否则会被别的操作重复触发
                         setPreSearchTask(null);
                     }
-                    UIUtil.invokeLaterIfNeeded(new Runnable() {
-                        @Override
-                        public void run() {
-                            search();
-                        }
-                    });
                     return null;
                 }
+
+                @Override
+                protected void done() {
+                    // 模糊搜索
+                    search();
+                }
             }.execute();
         }
     }
diff --git a/designer-base/src/main/java/com/fr/start/BaseDesigner.java b/designer-base/src/main/java/com/fr/start/BaseDesigner.java
index 5eaab74a5..b3945d0d7 100644
--- a/designer-base/src/main/java/com/fr/start/BaseDesigner.java
+++ b/designer-base/src/main/java/com/fr/start/BaseDesigner.java
@@ -155,7 +155,7 @@ public abstract class BaseDesigner extends ToolBarMenuDock {
                 isException = true;//此时有文件nullpointer异常，执行打开空文件
             }
         }
-        if (file.exists() && !isException) {
+        if (file != null && file.exists() && !isException) {
             df.openTemplate(file);
         } else {
             df.addAndActivateJTemplate();