propertygrid多个对象怎么显示

在PropertyGrid中显示多个对象可以通过两种方式实现：

使用属性类别：

创建一个父对象，其中包含多个子对象。

给每个子对象添加一个属性类别，以便在PropertyGrid中显示不同的分组。

在PropertyGrid中设置SelectedObject属性为父对象。

示例代码如下：

public class ParentObject{[Category("Group 1")]public string Property1 { get; set; }[Category("Group 1")]public int Property2 { get; set; }[Category("Group 2")]public bool Property3 { get; set; }}ParentObject parentObject = new ParentObject();propertyGrid1.SelectedObject = parentObject;

使用属性描述器：

创建一个自定义的属性描述器类，继承自ICustomTypeDescriptor接口，并实现相关方法。

在GetProperties方法中，返回包含多个对象属性的PropertyDescriptorCollection。

将实例化的属性描述器对象设置为PropertyGrid的SelectedObject属性。

示例代码如下：

public class CustomTypeDescriptor : ICustomTypeDescriptor{private List<object> objects;public CustomTypeDescriptor(List<object> objects){this.objects = objects;}public AttributeCollection GetAttributes(){return TypeDescriptor.GetAttributes(this, true);}public string GetClassName(){return TypeDescriptor.GetClassName(this, true);}public string GetComponentName(){return TypeDescriptor.GetComponentName(this, true);}public TypeConverter GetConverter(){return TypeDescriptor.GetConverter(this, true);}public EventDescriptor GetDefaultEvent(){return TypeDescriptor.GetDefaultEvent(this, true);}public PropertyDescriptor GetDefaultProperty(){return TypeDescriptor.GetDefaultProperty(this, true);}public object GetEditor(Type editorBaseType){return TypeDescriptor.GetEditor(this, editorBaseType, true);}public EventDescriptorCollection GetEvents(Attribute[] attributes){return TypeDescriptor.GetEvents(this, attributes, true);}public EventDescriptorCollection GetEvents(){return TypeDescriptor.GetEvents(this, true);}public PropertyDescriptorCollection GetProperties(Attribute[] attributes){// 返回包含多个对象属性的PropertyDescriptorCollectionList<PropertyDescriptor> properties = new List<PropertyDescriptor>();foreach (var obj in objects){PropertyDescriptorCollection collection = TypeDescriptor.GetProperties(obj, attributes);foreach (PropertyDescriptor descriptor in collection){properties.Add(new CustomPropertyDescriptor(descriptor, obj));}}return new PropertyDescriptorCollection(properties.ToArray());}public PropertyDescriptorCollection GetProperties(){return GetProperties(null);}public object GetPropertyOwner(PropertyDescriptor pd){return this;}}public class CustomPropertyDescriptor : PropertyDescriptor{private PropertyDescriptor descriptor;private object obj;public CustomPropertyDescriptor(PropertyDescriptor descriptor, object obj): base(descriptor){this.descriptor = descriptor;this.obj = obj;}public override object GetValue(object component){return descriptor.GetValue(obj);}public override void SetValue(object component, object value){descriptor.SetValue(obj, value);}public override void ResetValue(object component){descriptor.ResetValue(obj);}public override bool CanResetValue(object component){return descriptor.CanResetValue(obj);}public override bool ShouldSerializeValue(object component){return descriptor.ShouldSerializeValue(obj);}public override Type ComponentType{get { return descriptor.ComponentType; }}public override bool IsReadOnly{get { return descriptor.IsReadOnly; }}public override Type PropertyType{get { return descriptor.PropertyType; }}}List<object> objects = new List<object>{new object1(),new object2(),new object3()};CustomTypeDescriptor typeDescriptor = new CustomTypeDescriptor(objects);propertyGrid1.SelectedObject = typeDescriptor;

以上两种方式都可以在PropertyGrid中显示多个对象的属性，并根据需要进行分组和组织。