how to solve cross-thread operation not valid control

If you use backgroud worker in project and you need to access some control[DevExpress] in another thread
then use invoke

barStaticItem1.Caption = "Process : Checking file";
this.BeginInvoke(new MethodInvoker(delegate
{
barStaticItem1.Refresh();
}));

in above example code is mean invoke refresh method of barStaticItem1

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