private void BtnExhibitionPeterburg_Click(object sender, EventArgs e)
{
ArtExhibitions_Peterburg f = new ArtExhibitions_Peterburg();
f.ShowDialog();
}
private void СанктПетербургToolStripMenuItem_Click(object sender, EventArgs e)
{
ArtExhibitions_Peterburg f = new ArtExhibitions_Peterburg();
f.ShowDialog();
}
