Dynamically set readonly attribute of properties in PropertyGrid

Question

I have PropertyGridone that I used to display properties in a helper class. I assign a helper class PropertyGridas follows:

myPropertyGrid.SelectedObject = mySettingsHelper;

In the helper class, I assign ReadOnlyAttributeduring development as follows:

[DisplayName("DisplayExA"),
Description("DescriptionExA"),
ReadOnlyAttribute(true)]
public string PropertyA { get; set; }

[DisplayName("DisplayExB"),
Description("DescriptionExB"),
ReadOnlyAttribute(false)]
public string PropertyB { get; set; }

[DisplayName("DisplayExC"),
Description("DescriptionExC"),
ReadOnlyAttribute(true)]
public string PropertyC { get; set; }

But now I need to be able to change this attribute on individual properties dynamically at runtime. Based on certain criteria, some of these properties may be required to be read-only or not only read-only. How to make a dynamic change at runtime?

EDIT:

, ReadOnly ! . PropertyA , PropertyA .

public static class PropertyReadOnlyHelper
{
    public static  void SetReadOnly(object container, string name, bool value)
    {
        try
        {
            PropertyDescriptor descriptor = TypeDescriptor.GetProperties(container.GetType())[name];
            ReadOnlyAttribute attribute = (ReadOnlyAttribute)descriptor.Attributes[typeof(ReadOnlyAttribute)];
            FieldInfo fieldToChange = attribute.GetType().GetField("isReadOnly",
                                                System.Reflection.BindingFlags.NonPublic |
                                                System.Reflection.BindingFlags.Instance);
            fieldToChange.SetValue(attribute, value);
        }
        catch { }
    }
}

Answer 1

, ( ), CodeProject . , .NET PropertyGrid .

Answer 2

, ReadOnlyAttribute, IsReadOnly . , PropertyGrid, , SelectedObjects null . , , PropertyGrid RefreshTabs, .

EDIT:

, IsReadOnly ... , IsReadOnly.

Answer 3

Add Readonly

enter code here
TextBoxID.Attributes.Add("readonly","true");

Remove readonly

enter code here
TextBoxID.Attributes.Remove("readonly");