OleViewDotNet.MainForm.menuFileOpenDatabase_Click C# (CSharp) Метод

        private void menuFileOpenDatabase_Click(object sender, EventArgs e)
        {
            using (OpenFileDialog dlg = new OpenFileDialog())
            {
                dlg.Filter = "OleViewDotNet DB File (*.ovdb)|*.ovdb|All Files (*.*)|*.*";
                if (dlg.ShowDialog(this) == DialogResult.OK)
                {
                    using (LoadingDialog loader = new LoadingDialog(false, dlg.FileName))
                    {
                        if ((loader.ShowDialog() != DialogResult.OK) && (loader.Error != null))
                        {
                            MessageBox.Show(loader.Error.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                        }
                    }                    
                }
            }
        }