close #541 #622

src/Shared/HandyControl_Shared/Controls/Input/NumericUpDown.cs

@@ -266,7 +266,7 @@ namespace HandyControl.Controls
         ///     最小值
         /// </summary>
         public static readonly DependencyProperty MinimumProperty = DependencyProperty.Register(
-            "Minimum", typeof(double), typeof(NumericUpDown), new PropertyMetadata(ValueBoxes.Double0Box, OnMinimumChanged, CoerceMinimum), ValidateHelper.IsInRangeOfDouble);
+            "Minimum", typeof(double), typeof(NumericUpDown), new PropertyMetadata(double.MinValue, OnMinimumChanged, CoerceMinimum), ValidateHelper.IsInRangeOfDouble);
 
         private static void OnMinimumChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
         {