I have a Windows Forms dialog, where a long operation is undergoing a background card (Asynchron) work. During this operation I want to change some values on the form (label, ...). But when the developer tries to make some changes on the form, I get the " cross-thread action is not valid " error! How can this problem be solved?
Call the report progress method from the worker, and update the current status To change by changing progress .
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