Form Not Disposed?? I think...Not sure what I have done

[Tim Cowan]

Hi

I have code to open a form modally:

MM.Forms.frmAddProductWizard fAddProdWiz = new
MM.Forms.frmAddProductWizard();
fAddProdWiz.txtName.Text =
dgvImportReview.Rows[e.RowIndex].Cells["Name"].Value.ToString();
int mfgrid =
System.Convert.ToInt32(dgvImportReview.Rows[e.RowIndex].Cells["ManID"].Value);
fAddProdWiz.cmbMfgr.SelectedValue = mfgrid;
fAddProdWiz.PopulateOtherDropDowns(mfgrid);
fAddProdWiz.cmbProdLine.SelectedValue =
System.Convert.ToInt32(dgvImportReview.Rows[e.RowIndex].Cells["LineID"].Value);
//fAddProdWiz.txtName.Text =
dgvImportReview.Rows[e.RowIndex].Cells["Name"].Value.ToString();
if (fAddProdWiz.ShowDialog() == DialogResult.OK)
{
}
fAddProdWiz.Dispose();

in the form I have cmbMfgr_SelectedIndexChanged event for a combo box. When
it is loading the page I don't want it to change the values in the other
drop downs, once I have finished loading the form I do.

private void cmbMfgr_SelectedIndexChanged(object sender, EventArgs e)
{
if (pageIsLoading)
return;
PopulateOtherDropDowns(System.Convert.ToInt32(this .cmbMfgr.SelectedValue));
}

It works great the first time around. Second and subsequent times although I
set the pageIsLoading bool to true, by the time it gets to the above method,
it is false. I don't understand. I have closed the form and it has triggered
the Dispose() code.

So why even though at the beginning of the form pageIsLoading is true is it
changing to false. If I stop the program and start it again everything is
fine. It seems to me that it is retaining something in memory, but I don't
know what. I have used this sort of technique multiple times.

I am using VS 2005, .NET 2.0, Win XP Pro SP2.

Thanks

Tim