优化DataGridUI；完善拖拽；

chr

2024-03-01 8d344c1b64a4b88fa78a46c0825f5d71c557a815

 Controls/InnerWindow.xaml

@@ -4,6 +4,7 @@
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:WPFProject.Controls"
             
             mc:Ignorable="d" 
             HorizontalAlignment="Stretch"
             HorizontalContentAlignment="Stretch"