How do I show a “Loading . . . please wait” message in Winforms for a long loading form?

Question

I have a form that is very slow because there are many controls placed on the form.

As a result the form takes a long time to loaded.

How do I load the fo

Answer 1

Another way of making "Loading screen" only display at certain time is, put it before the event and dismiss it after event finished doing it's job.

For example: you want to display a loading form for an event of saving result as MS Excel file and dismiss it after finished processing, do as follows:

LoadingWindow loadingWindow = new LoadingWindow();

try
{
    loadingWindow.Show();                
    this.exportToExcelfile();
    loadingWindow.Close();
}
catch (Exception ex)
{
    MessageBox.Show("Exception EXPORT: " + ex.Message);
}

Or you can put loadingWindow.Close() inside finally block.