How to update the custom Task property at runtime?

I am currently working on to find a way to update the properties of the custom task view at runtime. I have a custom task with a read-only property in the view. But that property will be chaning during the runtime by the Execute method of the task. I am unable to display the changed value during the runtime by the view. I need to update this value in the view to get it stored in the checkpointfile of the package so that the task can support the checkpointfile.