I want to expose some properties in my custom control. I require to get input for three parameters that I expose as Browsable
properties from the control. Based on input for one property the other two might not be required. How can I disable/hide the properties that are not required based on selection for first property?
Yes, with a little reflection, you can achieve this:
public class TestControl : Control {
private string _PropertyA = string.Empty;
private string _PropertyB = string.Empty;
[RefreshProperties(RefreshProperties.All)]
public string PropertyA {
get { return _PropertyA; }
set {
_PropertyA = value;
PropertyDescriptor pd = TypeDescriptor.GetProperties(this.GetType())["PropertyB"];
ReadOnlyAttribute ra = (ReadOnlyAttribute)pd.Attributes[typeof(ReadOnlyAttribute)];
FieldInfo fi = ra.GetType().GetField("isReadOnly", BindingFlags.NonPublic | BindingFlags.Instance);
fi.SetValue(ra, _PropertyA == string.Empty);
}
}
[RefreshProperties(RefreshProperties.All)]
[ReadOnly(true)]
public string PropertyB {
get { return _PropertyB; }
set { _PropertyB = value; }
}
}
This will disable PropertyB whenever PropertyA is an empty string.
Found this article at the Code Project that described this process.