How to call a function with arguments from a thread?

Question

I create a stream. In a flow I cause function. In this function, I write the program code, simultaneously calling other functions.

//При загрузке формы - создаём поток и в потоке выполняем "главную функцию". private void RadForm1_Load(object sender, EventArgs e) { Thread Main_thread = new Thread(main_function); Main_thread.Priority = ThreadPriority.Normal; Main_thread.Start(); } //А вот тут ошибки public void main_function() { //Функция показа формы из потока. Код ниже с ошибками - VS подчеркивает красным и не компилирует. this.Invoke(new Action(delegate {show_message_form("Идет загрузка.", 1)}); //Это не компилирует //Функция скрытия формы из потока. Код без ошибок. this.Invoke(new Action(hide_message_form)); } //Далее код других функций (можно не смотреть) //Показ формы с сообщением public void show_message_form(string form_text, int show_progress_image) { RadForm3 RadForm3 = new RadForm3(); RadForm3.Show(); RadForm3.radLabel2.Text=form_text; if (show_progress_image == 1) RadForm3.pictureBox1.Visible = true; this.Hide(); } //Скрытие формы с сообщением public void hide_message_form() { this.Show(); RadForm3 RadForm3 = new RadForm3(); RadForm3.Hide(); }

How to call a function ( show_message_form("Идет загрузка.", 1) ) with arguments from a stream?

An error message with which "does not compile" is of course not necessary, does it?
Well, the definition of the show_message_from function and hide_message_from would also be
Vladimir - An error message with which "does not compile" did not result.
"The code below with errors - VS underlines in red" - written impromptu / at random.
I did not know what to write, I wrote what seemed more like the truth.
But if you want ... this. Invoke (new Action (delegate {show_message_form ("Loading (update) directories. Please wait.", 1)})));
(after the closing parenthesis}) Error 2 expected) (following the closing parenthesis}), etc.

Alexey alexey 1,155 one 9 26 · Accepted Answer · 2015-12-24T11:18:20

Replace the line with an error on this:

 this.Invoke(new Action(()=>{ show_message_form("Идет загрузка.", 1); } ));

Alexey

1,155 one 9 26

Works. But the RadForm3 form (// Hiding the form with the message) was not hidden. Strange. But the main thing is that your code works. - webdav
You in the code of the hide_message_form () method create a new form (RadForm3 RadForm3 = new RadForm3 ();) and hide it (RadForm3.Hide ();) and to hide the form created in show_message_form you need to refer to it. - Alexey

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How to call a function with arguments from a thread?

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