Maintaining one visible form with CF2.0

Hi,

I have recently created a CF2.0 Pocket PC application using VS 2005 Beta 2 after being inspired by the following white paper:

"Northwind Pocket Service: Field Service for Windows Mobile-based Pocket PCs"

available at:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnppcgen/html/fieldservice_pocketpc.asp

When opening and closing all forms in my application I use the method used in the white paper which is described in an extract from the white paper below:

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The code that runs when the first menu option (Plan) is selected looks like this:

Cursor.Current = Cursors.WaitCursor; PlanForm planForm =new PlanForm(this); planForm.ShowDialog();

During the load of the new form, the wait cursor is shown. Also note that the current form instance is passed as a parameter to the child form (PlanForm) to allow the child form to control the parent form's visibility.

This is what the PlanForm constructor looks like:

public PlanForm(Form parentForm) { InitializeComponent(); this.parentForm = parentForm; }

The parent form instance is saved in a private variable (parentForm) that is used in the form's load event:

privatevoid PlanForm_Load(object sender, EventArgs e) { parentForm.Hide(); Cursor.Current = Cursors.Default; }

It is used to hide the parent form and remove the wait cursor. Also, it is used when the form closes:

privatevoid PlanForm_Closing(object sender, CancelEventArgs e) { parentForm.Show(); }

The parent form is shown again. The reason for doing this is that there will be only one instance of the application in the current running programs list (Start > Settings > System > Memory > Running Programs).

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This works fine for a CF1.1 application created in VS2003. However when I use the above method in a CF2.0 application, the application momentarily disappears when a form is shown. I think this is due to the load event running 'parentForm.Hide();' before the form that is being loaded is visible.

Please can someone help me out with this issue?

Best Regards,

Craig Harrison

[3723 byte] By [CraigHarrison] at [2008-2-13]