problem reusing Dialog Form

ok, I have a form that I wish to use as a Dialog Form to edit item details,
when I use the form more than once it becomes unresponsive to setting the
dialogresult.

this app is based on the TaskVision architecture:

in a global class I have a static dialog form item...
declared as such:
************************************************** This is the declaration
in the global class

static ItemDetailForm m_ItemDetailForm;

I also have static methods called:

************************************************** This method is called to
load the form from the splash page

// LOAD ItemDetailForm into Global variable

static public void LoadItemDetailForm()

{

if (m_ItemDetailForm == null)

m_ItemDetailForm = new ItemDetailForm();

}

************************************************** When a button is clicked
on the main form this method is called to return the form object

// RETURN the ItemDetailForm

static public ItemDetailForm GetItemDetailForm()

{

if (m_ItemDetailForm== null)

m_ItemDetailForm= new ItemDetailForm();

return m_ItemDetailForm;

}

************************************************** This is the main form
button code

ItemDetailForm fdf = Global.GetItemDetailForm();

fdf.DataChanged +=new EventHandler(detailform_DataChanged);

fdf.FoodID = FoodID;

fdf.ShowDialog();

************************************************** the first time the above
code is called, everything works fine, the dialog is displayed, I make
modifications to the data and click an update button that does the following
on the dialog form.

DialogResult = DialogResult.OK;

************************************************** this line closes the form
and returns to the calling form correctly.as expected.

if I try to call the dialog form again, it is displayed properly, but the
following line has no impact...

DialogResult = DialogResult.OK;

after this line of code the form acts as though nothing was clicked, in fact
setting dialogresult.cancel has no response as well.

one thing I have tried it setting the form.dialogresult=dialogresult.none
prior to opening the form, with no luck.



I am sort of new to C#, so is there something obvious Im overlooking about
using modaldialogs?

Apreciate any/all help about this matter anyone can provide.

Thanks,

David Johnson

Hi, David
It's hard to see what's wrong from your code. Here is some suggestions:
1. Check your DataChanged event handler implementation. In the button code
you subscribe the DataChanged event. Did you un-subscribe the event after
the form is being used?
2. Start with simple code. Comment out your code and see where it starts to
get broken.
3. When it hangs - can you get a stack trace?
Hope this helps
Thanks
Xin