# This patch file was generated by NetBeans IDE
# Following Index: paths are relative to: /home/matthias/NetBeansProjects/core-main
# This patch can be applied using context Tools: Patch action on respective folder.
# It uses platform neutral UTF-8 encoding and \n newlines.
# Above lines and this line are ignored by the patching process.
Index: db/src/org/netbeans/modules/db/explorer/dlg/AddIndexDialog.java
--- db/src/org/netbeans/modules/db/explorer/dlg/AddIndexDialog.java Base (BASE)
+++ db/src/org/netbeans/modules/db/explorer/dlg/AddIndexDialog.java Locally Modified (Based On LOCAL)
@@ -65,6 +65,7 @@
 public class AddIndexDialog {
     boolean result = false;
     Dialog dialog = null;
+    DialogDescriptor descriptor;
     JTextField namefld;
     CheckBoxListener cbxlistener;
     JCheckBox cbx_uq;
@@ -208,7 +209,9 @@
                 }
             };
 
-            DialogDescriptor descriptor = new DialogDescriptor(pane, NbBundle.getMessage (AddIndexDialog.class, "AddIndexTitle"), true, listener); //NOI18N
+            descriptor = new DialogDescriptor(pane, NbBundle.getMessage (AddIndexDialog.class, "AddIndexTitle"), true, listener); //NOI18N
+             // Initally no column is checked => an index can't be created
+            descriptor.setValid(false);
             // inbuilt close of the dialog is only after CANCEL button click
             // after OK button is dialog closed by hand
             Object [] closingOptions = {DialogDescriptor.CANCEL_OPTION};
@@ -257,7 +260,13 @@
             String name = cbx.getName();
             if (cbx.isSelected()) set.add(name);
             else set.remove(name);
+            // Only allow creation of index if at least one column is selected
+            if(set.size() > 0) {
+                descriptor.setValid(true);
+            } else {
+                descriptor.setValid(false);
         }
+        }
 
         public Set getSelectedColumns()
         {