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c# - WinForms Close() sets DialogResult to Cancel

If I call Close() in my WinForm, it seems that even though DialogResult is None at the time, right after I call Close() I see that it is set to Cancel.

Does this sound normal?

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Or even easier, you can set DialogResult just after Close. For example, assuming ValidateSettings will show the user any problems with the form or return true otherwise:

    private void btnOK_Click(object sender, EventArgs e)
    {
        if (ValidateSettings())
        {
            SaveSettings();
            Close();
            DialogResult = DialogResult.OK;
        }
    }

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