在propertygrid中使用Dictionary
我想使用propertygrid编辑键值（字符串，字符串）项的列表。 当我使用Dictionary作为类型时，propertygrid将显示一个GUI，但它似乎没有“启用”，即。 我无法添加任何物品。
是否支持Dictionary对象，或者是否有任何其他对象可以解决此问题？
我在过去的代码中完成了它：
class DictionaryPropertyGridAdapter : ICustomTypeDescriptor { IDictionary _dictionary; public DictionaryPropertyGridAdapter(IDictionary d) { _dictionary = d; } public string GetComponentName() { return TypeDescriptor.GetComponentName(this, true); } public EventDescriptor GetDefaultEvent() { return TypeDescriptor.GetDefaultEvent(this, true); } public string GetClassName() { return TypeDescriptor.GetClassName(this, true); } public EventDescriptorCollection GetEvents(Attribute[] attributes) { return TypeDescriptor.GetEvents(this, attributes, true); } EventDescriptorCollection System.ComponentModel.ICustomTypeDescriptor.GetEvents() { return TypeDescriptor.GetEvents(this, true); } public TypeConverter GetConverter() { return TypeDescriptor.GetConverter(this, true); } public object GetPropertyOwner(PropertyDescriptor pd) { return _dictionary; } public AttributeCollection GetAttributes() { return TypeDescriptor.GetAttributes(this, true); } public object GetEditor(Type editorBaseType) { return TypeDescriptor.GetEditor(this, editorBaseType, true); } public PropertyDescriptor GetDefaultProperty() { return null; } PropertyDescriptorCollection System.ComponentModel.ICustomTypeDescriptor.GetProperties() { return ((ICustomTypeDescriptor)this).GetProperties(new Attribute[0]); } public PropertyDescriptorCollection GetProperties(Attribute[] attributes) { ArrayList properties = new ArrayList(); foreach (DictionaryEntry e in _dictionary) { properties.Add(new DictionaryPropertyDescriptor(_dictionary, e.Key)); } PropertyDescriptor[] props = (PropertyDescriptor[])properties.ToArray(typeof(PropertyDescriptor)); return new PropertyDescriptorCollection(props); } } class DictionaryPropertyDescriptor : PropertyDescriptor { IDictionary _dictionary; object _key; internal DictionaryPropertyDescriptor(IDictionary d, object key) : base(key.ToString(), null) { _dictionary = d; _key = key; } public override Type PropertyType { get { return _dictionary[_key].GetType(); } } public override void SetValue(object component, object value) { _dictionary[_key] = value; } public override object GetValue(object component) { return _dictionary[_key]; } public override bool IsReadOnly { get { return false; } } public override Type ComponentType { get { return null; } } public override bool CanResetValue(object component) { return false; } public override void ResetValue(object component) { } public override bool ShouldSerializeValue(object component) { return false; } } private void Form1_Load(object sender, System.EventArgs e) { IDictionary d = new Hashtable(); d["Hello"] = "World"; d["Meaning"] = 42; d["Shade"] = Color.ForestGreen; propertyGrid1.SelectedObject = new DictionaryPropertyGridAdapter(d); }
为我们工作得很好。
如果您尝试将包含Dictionary属性的类绑定到PropertyGrid，而不是直接绑定Dictionary本身，那么这里是一个免费的（LGPL许可的）组件，它正是这样做的： http ： //gendictedit.codeplex.com/