combo.SelectedIndexChanged, New EventHandler(AddressOf ComboBox_SelectedIndexChanged)AddHandler combo.SelectedIndexChanged, New EventHandler(AddressOf ComboBox_SelectedIndexChanged)ComboBox_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim
我在dataGridView中显示对象列表。new List<IAction>但是,当一种对象中没有区域属性时希望你能帮我;)public class MoveAction : IAction public string Name { get; set;set; } = true;
public Area
我尝试在Form_Current中使用下面的代码,但是如果我从Combo1转到Combo2,它会显示错误。只有当我移动到一个不是这两个对象之一的对象时,它才会显示。If Me.ActiveControl<>Combo1 And Me.ActiveControl<>Combo2 And (IsNull(Combo1.Value) Or IsNull(Combo2.ValueForm