private void btnNext_Click(object sender, EventArgs e)
 {
     if (radBut1.Checked==true)
     {
         InfoTest test = new InfoTest(numTeacher);
         test.Show();
         this.Hide();
     }
     if (radBut2.Checked==true)
     {
         if (chBox1.Checked)
         {
             TestEditXml testedit = new TestEditXml(numTeacher,txtPath.Text);
             this.Hide();
             testedit.Show();
         }
     }
     if (radBut3.Checked==true)
     {
         delTest deltest = new delTest(numTeacher);
         deltest.Show();
         this.Hide();
     }
 }
 private void создатьТестToolStripMenuItem_Click(object sender, EventArgs e)
 {
     InfoTest newtest = new InfoTest(Convert.ToInt32(numPrepod));
     newtest.Show();
 }