Method to check WX_UNIT_BINDER value validity.

common/wx_unit_binder.cpp

@@ -73,6 +73,14 @@ int WX_UNIT_BINDER::GetValue() const
 }
 
 
+bool WX_UNIT_BINDER::Valid() const
+{
+    double dummy;
+
+    return m_textCtrl->GetValue().ToDouble( &dummy );
+}
+
+
 void WX_UNIT_BINDER::Enable( bool aEnable )
 {
     m_textCtrl->Enable( aEnable );

include/wx_unit_binder.h

@@ -60,6 +60,12 @@ public:
      */
     virtual int GetValue() const;
 
+    /**
+     * Function Valid
+     * Returns true if the text control contains a real number.
+     */
+    bool Valid() const;
+
     /**
      * Function Enable
      * Enables/diasables the binded widgets