Q:

ShowDialog() Not showing the form on top of the main form

I have a winforms application that handle's subscription data. The main form checks if the user is in the datastore(xml file) if not i call this. UserDetails is a data entry form.
else
{
    Form frm = new UserDetails();
    frm.ShowDialog();
}

The Problem is the UserDetail form is not on top and I can select the main form.

A:

This may happen if your main form is TopMost.
Try using
frm.ShowDialog(this);

when called from the main form.
This will ensure that the dialog is a visual child of the main form, and even if the main form is TopMost, the dialog will be above it.

