using System.Windows.Controls; using YY.Admin.ViewModels.MixerMaterial; namespace YY.Admin.Views.MixerMaterial; public partial class MixerMaterialEditDialogView : UserControl { public MixerMaterialEditDialogView() { InitializeComponent(); } private void MajorCategoryComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e) { if (DataContext is MixerMaterialEditDialogViewModel vm && vm.MajorCategoryChangedCommand.CanExecute()) { vm.MajorCategoryChangedCommand.Execute(); } } }