我试图OpenFileDialog
在下面的代码中使用,但编译器显示异常System::NullReferenceException
,一旦我将代码放在try
和catch
块之间,不会引发异常,但现在显示对话框!?
try
{
if(openFileDialog1->ShowDialog() == System::Windows::Forms::DialogResult::OK)
{
this->textBox18->Text=openFileDialog1->FileName->ToString();
}
}
catch(System::NullReferenceException^ e){ e->Message;}