我想从我的 PropertyGrid 中的可浏览属性中排除 Property MiddleName。
当我在我的 Person 类上的 ICustomTypeDescriptor 接口上闲逛时,我在启动我的应用程序时遇到了这个异常。
我错了什么?
System.ArgumentException:无法绑定到 DataSource 上的属性或列 TestNamefür。参数名称:dataMember bei System.Windows.Forms.BindToObject.CheckBinding() bei System.Windows.Forms.Binding.SetListManager(BindingManagerBase bindingManagerBase) bei System.Windows.Forms.ListManagerBindingsCollection.AddCore(Binding dataBinding)
public class Person : ICustomTypeDescriptor
{
public string TestName { get; set; }
public string FirstName { get; set; }
public string MiddleName { get; set; }
public string LastName { get; set; }
AttributeCollection ICustomTypeDescriptor.GetAttributes()
{
return TypeDescriptor.GetAttributes(this, true);
}
string ICustomTypeDescriptor.GetClassName()
{
return TypeDescriptor.GetClassName(this, true);
}
string ICustomTypeDescriptor.GetComponentName()
{
return TypeDescriptor.GetComponentName(this, true);
}
TypeConverter ICustomTypeDescriptor.GetConverter()
{
return TypeDescriptor.GetConverter(this, true);
}
EventDescriptor ICustomTypeDescriptor.GetDefaultEvent()
{
return TypeDescriptor.GetDefaultEvent(this, true);
}
PropertyDescriptor ICustomTypeDescriptor.GetDefaultProperty()
{
return TypeDescriptor.GetDefaultProperty(this, true);
}
object ICustomTypeDescriptor.GetEditor(Type editorBaseType)
{
return TypeDescriptor.GetEditor(this, editorBaseType, true);
}
EventDescriptorCollection ICustomTypeDescriptor.GetEvents(Attribute[] attributes)
{
return TypeDescriptor.GetEvents(this, attributes, true);
}
EventDescriptorCollection ICustomTypeDescriptor.GetEvents()
{
return TypeDescriptor.GetEvents(this, true);
}
PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes)
{
Debug.Print("GetProperties()");
Print("Attributes is {0}null", attributes == null ? "" : "not ");
PropertyDescriptorCollection origCol = TypeDescriptor.GetProperties(this, attributes, true);
bool wantBrowsable = attributes.Contains<Attribute>(new BrowsableAttribute(true));
Debug.Print("Wants Browsable: {0}", wantBrowsable);
List<PropertyDescriptor> newCol = new List<PropertyDescriptor>();
foreach (PropertyDescriptor pd in origCol)
{
System.Diagnostics.Debug.Print("Property Name: {0}", pd.Name);
if (pd.Name != "MiddleName")
{
System.Diagnostics.Debug.Print("Property {0} is included.", pd.Name);
newCol.Add(pd);
}
}
return new PropertyDescriptorCollection(newCol.ToArray());
}
PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties()
{
return ((ICustomTypeDescriptor)this).GetProperties(null);
}
object ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor pd)
{
return this;
}
}
更新+解决方案:
标有 的属性Browseable(false)
不能绑定!所以我这样做了:
Marc Gravell的最后一个解决方案就像呼吸一样!