使用backgroundWorker时C ++ GUI写入textBox

如何解决使用backgroundWorker时C ++ GUI写入textBox

我正在尝试写一个文本框，同时在backgroundworker上有一个循环。我尝试使用Invoke / BeginInvoke，但是我做不到。我如何更改它才能使其正常工作？这是我的下面的代码，谢谢。

 delegate void backgroundWorker1_DoWorkDelegate(Object^ sender,DoWorkEventArgs^ e);
private: System::Void backgroundWorker1_DoWork(System::Object^  sender,System::ComponentModel::DoWorkEventArgs^  e) {
if (textBox1->Invokerequired)
        {
                backgroundWorker1_DoWorkDelegate^ action = gcnew backgroundWorker1_DoWorkDelegate(this,&MyForm::Worker);
                
                this->BeginInvoke(action);
            }

            else
            {
                textBox1->Text = "a";

            }     ...  }

        void Worker(System::Object^  sender,System::ComponentModel::DoWorkEventArgs^ e)
        {
            textBox1->Text = "a";
        }