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diff --git a/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/validators/DateValidator.java b/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/validators/DateValidator.java
new file mode 100644
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+++ b/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/validators/DateValidator.java
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+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+/*
+ * Created on 6.10.2005
+ * @author Toni Kalajainen 
+ */
+package org.simantics.utils.ui.validators;
+
+import java.text.DateFormat;
+import java.text.ParseException;
+
+import org.eclipse.jface.dialogs.IInputValidator;
+
+public class DateValidator implements IInputValidator {
+
+    private final DateFormat format;
+    
+    public DateValidator(DateFormat format) {
+        this.format = format;
+    }
+
+    public String isValid(String newText) {
+        try {
+            format.parse(newText);
+            return null;
+        } catch (ParseException e) {
+            return e.getMessage();
+        }        
+    }
+        
+}