Код: Выделить всё
private: System::Void add_task_Click(System::Object^ sender, System::EventArgs^ e) {
ofstream myFiles;
myFiles.open("allTask.txt", fstream::out,fstream::app);
String^ task_name = task->Text;
tasks_list->Items->Add(task_name);
if (myFiles.is_open()) {
myFiles
Подробнее здесь: [url]https://stackoverflow.com/questions/78672615/i-cant-write-a-string-variable-to-my-file-using-fstream[/url]