这段代码干净吗？
private void button1_Click(object sender, EventArgs e)
{
frmCustomDialog f = new frmCustomDialog();
if(f.ShowDialog() == DialogResult.OK)
TextBox1.Text = f.MyCustomProperty;
}
您是否需要关闭或处置表单 f 或其他任何东西？还是自动进行垃圾回收？
谢谢。
最佳答案
是的，你应该处理表格:
private void button1_Click(object sender, EventArgs e)
{
using (frmCustomDialog f = new frmCustomDialog())
{
if(f.ShowDialog() == DialogResult.OK)
{
TextBox1.Text = f.MyCustomProperty;
}
}
}
ShowDialog() 不会处理表单，因为您可以重复使用它并再次显示它。如果您不需要这样做，您应该自己处理它。
来自 ShowDialog() 的文档:
Unlike modeless forms, the Close method is not called by the .NET Framework when the user clicks the close form button of a dialog box or sets the value of the DialogResult property. Instead the form is hidden and can be shown again without creating a new instance of the dialog box. Because a form displayed as a dialog box is not closed, you must call the Dispose method of the form when the form is no longer needed by your application.
关于c# - .NET WinForm GC 问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/645836/