类需要什么才能使属性网格显示其属性? 语言:C#.Net Framework 4.6.1 操作系统:Windows 7 Home 64位
有人能告诉我一个属性网格需要什么样的类才能显示它的属性吗 我只是尝试继承和实现ICustomTypeDescriptor,但什么都没有显示 我希望属性网格也尝试解析这些值,而不是仅仅接受一个字符串,并且我希望能够指定一个类别 这是我的密码类需要什么才能使属性网格显示其属性? 语言:C#.Net Framework 4.6.1 操作系统:Windows 7 Home 64位,c#,winforms,dynamic,propertygrid,C#,Winforms,Dynamic,Propertygrid,有人能告诉我一个属性网格需要什么样的类才能显示它的属性吗 我只是尝试继承和实现ICustomTypeDescriptor,但什么都没有显示 我希望属性网格也尝试解析这些值,而不是仅仅接受一个字符串,并且我希望能够指定一个类别 这是我的密码 using System; using System.Collections; using System.Dynamic; using System.Collections.Generic; using System.Web.Script.Serializat
using System;
using System.Collections;
using System.Dynamic;
using System.Collections.Generic;
using System.Web.Script.Serialization;
using System.Collections.Specialized;
using System.ComponentModel;
namespace PureCore.Library.Data
{
public class Property : DynamicObject, ICustomTypeDescriptor
{
private Dictionary<string, object> Properties = new Dictionary<string, object>();
public override bool TryGetMember(GetMemberBinder binder, out object value)
{
if (Properties.ContainsKey(binder.Name))
{
value = Properties[binder.Name];
return true;
}
return base.TryGetMember(binder, out value);
}
public override bool TrySetMember(SetMemberBinder binder, object value)
{
if (Properties.ContainsKey(binder.Name))
{
Properties[binder.Name] = value;
return true;
}
Properties.Add(binder.Name, value);
return true;
}
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()
{
return TypeDescriptor.GetEvents(this, true);
}
public EventDescriptorCollection GetEvents(Attribute[] attributes)
{
return TypeDescriptor.GetEvents(this, attributes, true);
}
public PropertyDescriptorCollection GetProperties()
{
return TypeDescriptor.GetProperties(this, true);
}
public PropertyDescriptorCollection GetProperties(Attribute[] attributes)
{
return TypeDescriptor.GetProperties(this, attributes, true);
}
public object GetPropertyOwner(PropertyDescriptor pd)
{
return this;
}
}
}
您必须添加更多的代码,特别是您必须明确地为网格提供一个属性列表,从中派生,如下所示:
public class CustomType : DynamicObject, ICustomTypeDescriptor
{
private readonly Dictionary<string, object> _properties = new Dictionary<string, object>();
public AttributeCollection GetAttributes() => new AttributeCollection();
public string GetClassName() => null;
public string GetComponentName() => null;
public TypeConverter GetConverter() => null;
public EventDescriptor GetDefaultEvent() => null;
public PropertyDescriptor GetDefaultProperty() => null;
public object GetEditor(Type editorBaseType) => null;
public EventDescriptorCollection GetEvents() => GetEvents(null);
public EventDescriptorCollection GetEvents(Attribute[] attributes) => new EventDescriptorCollection(null);
public PropertyDescriptorCollection GetProperties() => GetProperties(null);
public object GetPropertyOwner(PropertyDescriptor pd) => this;
public PropertyDescriptorCollection GetProperties(Attribute[] attributes) => new PropertyDescriptorCollection(_properties.Select(p => new CustomProperty(p.Key, p.Value, "Mycats")).ToArray());
public override bool TryGetMember(GetMemberBinder binder, out object value) => _properties.TryGetValue(binder.Name, out value);
public override bool TrySetMember(SetMemberBinder binder, object value)
{
_properties[binder.Name] = value;
return true;
}
}
public class CustomProperty : PropertyDescriptor
{
public CustomProperty(string name, object value, string category)
: base(name, new Attribute[] { new CategoryAttribute(category) })
{
Value = value;
}
public object Value { get; set; }
public override Type ComponentType => typeof(CustomType);
public override bool IsReadOnly => false;
public override Type PropertyType => Value != null ? Value.GetType() : typeof(object);
public override bool CanResetValue(object component) => false;
public override object GetValue(object component) => Value;
public override void ResetValue(object component) => throw new NotSupportedException();
public override void SetValue(object component, object value) => Value = value;
public override bool ShouldSerializeValue(object component) => false;
}
公共类CustomType:DynamicObject,ICustomTypeDescriptor
{
专用只读词典_properties=new Dictionary();
public AttributeCollection GetAttributes()=>new AttributeCollection();
公共字符串GetClassName()=>null;
公共字符串GetComponentName()=>null;
public TypeConverter GetConverter()=>null;
公共事件描述符GetDefaultEvent()=>null;
公共属性描述器GetDefaultProperty()=>null;
公共对象GetEditor(类型editorBaseType)=>null;
public EventDescriptorCollection GetEvents()=>GetEvents(null);
public EventDescriptorCollection GetEvents(Attribute[]attributes)=>new EventDescriptorCollection(null);
公共属性DescriptorCollection GetProperties()=>GetProperties(null);
公共对象GetPropertyOwner(PropertyDescriptor pd)=>此;
public PropertyDescriptorCollection GetProperties(属性[]属性)=>new PropertyDescriptorCollection(_properties.Select(p=>new CustomProperty(p.Key,p.Value,“Mycats”)).ToArray();
public override bool TryGetMember(GetMemberBinder binder,out object value)=>\u properties.TryGetValue(binder.Name,out value);
public override bool TrySetMember(SetMemberBinder绑定器,对象值)
{
_属性[binder.Name]=值;
返回true;
}
}
公共类CustomProperty:PropertyDescriptor
{
公共CustomProperty(字符串名称、对象值、字符串类别)
:base(名称,新属性[]{new CategoryAttribute(category)})
{
价值=价值;
}
公共对象值{get;set;}
公共覆盖类型ComponentType=>typeof(CustomType);
公共覆盖bool IsReadOnly=>false;
公共重写类型PropertyType=>Value!=null?Value.GetType():typeof(对象);
公共覆盖布尔CanResetValue(对象组件)=>false;
公共覆盖对象GetValue(对象组件)=>Value;
public override void ResetValue(对象组件)=>抛出新的NotSupportedException();
public override void SetValue(对象组件,对象值)=>value=value;
公共重写bool ShouldSerializeValue(对象组件)=>false;
}
哇,真管用!而这个类型实际上被解析为一个实类型。如何将属性添加到除misc之外的类别?@Shadowblitz16-category是PropertyDescriptor上的自定义属性
public class CustomType : DynamicObject, ICustomTypeDescriptor
{
private readonly Dictionary<string, object> _properties = new Dictionary<string, object>();
public AttributeCollection GetAttributes() => new AttributeCollection();
public string GetClassName() => null;
public string GetComponentName() => null;
public TypeConverter GetConverter() => null;
public EventDescriptor GetDefaultEvent() => null;
public PropertyDescriptor GetDefaultProperty() => null;
public object GetEditor(Type editorBaseType) => null;
public EventDescriptorCollection GetEvents() => GetEvents(null);
public EventDescriptorCollection GetEvents(Attribute[] attributes) => new EventDescriptorCollection(null);
public PropertyDescriptorCollection GetProperties() => GetProperties(null);
public object GetPropertyOwner(PropertyDescriptor pd) => this;
public PropertyDescriptorCollection GetProperties(Attribute[] attributes) => new PropertyDescriptorCollection(_properties.Select(p => new CustomProperty(p.Key, p.Value, "Mycats")).ToArray());
public override bool TryGetMember(GetMemberBinder binder, out object value) => _properties.TryGetValue(binder.Name, out value);
public override bool TrySetMember(SetMemberBinder binder, object value)
{
_properties[binder.Name] = value;
return true;
}
}
public class CustomProperty : PropertyDescriptor
{
public CustomProperty(string name, object value, string category)
: base(name, new Attribute[] { new CategoryAttribute(category) })
{
Value = value;
}
public object Value { get; set; }
public override Type ComponentType => typeof(CustomType);
public override bool IsReadOnly => false;
public override Type PropertyType => Value != null ? Value.GetType() : typeof(object);
public override bool CanResetValue(object component) => false;
public override object GetValue(object component) => Value;
public override void ResetValue(object component) => throw new NotSupportedException();
public override void SetValue(object component, object value) => Value = value;
public override bool ShouldSerializeValue(object component) => false;
}