Update SearchBar.cs

HandyControl/Controls/Input/SearchBar.cs

@@ -47,6 +47,7 @@ namespace HandyControl.Controls
             _textBox = GetTemplateChild(ElementTextBox) as WatermarkTextBox;
             if (_textBox != null)
             {
+                _textBox.Text = Text;
                 SetBinding(TextProperty, new Binding(TextProperty.Name)
                 {
                     Source = _textBox,
@@ -191,4 +192,4 @@ namespace HandyControl.Controls
             return result.Data;
         }
     }
-}
+}