I need simple control designer in runtime. I want set only several properties for several controls. For example Text for Label control and Size form my UserControl. I plan use PropertyGrid for this purpose. But it displays all browsable properties for every control. I need to set list of properties which have to be displayed in PropertyGrid. I try to create class MyPropertyGrid derived from PropertyGrid and class MyPropertiesTab derived from PropertiesTab. I override MyPropertyGrid.DefaultTabType to typeof(MyPropertiesTab) and create empty constructor w/o parameters.
But when I set MyPropertyGrid.SelectedObject to any control I get exception:
System.IndexOutOfRangeException was unhandled
Message="Index was outside the bounds of the array."
Source="System.Windows.Forms"
StackTrace:
at System.Windows.Forms.PropertyGrid.UpdatePropertiesViewTabVisibility()
at System.Windows.Forms.PropertyGrid.ShowEventsButton(Boolean value)
at System.Windows.Forms.PropertyGrid.set_SelectedObjects(Object[] value)
at System.Windows.Forms.PropertyGrid.set_SelectedObject(Object value)
I don't write any code in MyPropertiesTab class (except empty constructor w/o parameters).
If I remove overriden MyPropertyGrid.DefaultTabType then MyPropertyGrid is displayed.
What is wrong
How to make MyPropertiesTab working
How to filter properties in PropertyGrid?
Luis Ayala
BobLusk
mak101
If you'd like to filter out properties, try writing your own TypeConverter. By overriding GetProperties, you can supply the properties you need to the propertygrid.
I made my own typeconverter. Here's how I implemented the GetProperties, maybe you can retrieve some ideas from it. It is an object similar to the Padding structure, but for floats. I expose some specific properties in it.
public override PropertyDescriptorCollection GetProperties( ITypeDescriptorContext context, object value, Attribute[] attributes )
{
PropertyDescriptorCollection collection = TypeDescriptor.GetProperties( value, attributes );
string[] textArray = new string[ 5 ] { "All", "Left", "Top", "Right", "Bottom" };
return collection.Sort( textArray );
}