private void button2_Click(object sender, EventArgs e)
{
string str = treeView1.SelectedNode.Text;
int i = Convert.ToInt32(str.Length == 5 ? str.Substring(1, 1) : str.Substring(1, 2));
if (i == 1)
{
FrmStrengthCalculation1 childFrame = new FrmStrengthCalculation1(i);
childFrame.Show();
}
if (i == 2)
{
FrmStrengthCalculation2 childFrame = new FrmStrengthCalculation2(i);
childFrame.Show();
}
if (i == 3)
{
FrmStrengthCalculation2 childFrame = new FrmStrengthCalculation2(i);
childFrame.Show();
}
if (i == 4)
{
Form19 childFrame = new Form19(i);
childFrame.Show();
}
}
