private void Form1_Load(object sender, EventArgs e)
{
cmbFacilityConfiguration.SelectedIndex = 1;
cmbFacilityShape.SelectedIndex = 0;
cmbFacilityType.SelectedIndex = 1;
cmbHierachy.SelectedIndex = 1;
cmbInfiltrationProcedure.SelectedIndex = 0;
cmbDischargePoint.SelectedIndex = 0;
this.cmbHierachy.SelectedIndexChanged += cmbHierachy_SelectedIndexChanged;
this.cmbFacilityType.SelectedIndexChanged += cmbFacilityType_SelectedIndexChanged;
this.cmbFacilityConfiguration.SelectedIndexChanged += cmbFacilityConfiguration_SelectedIndexChanged;
this.cmbFacilityShape.SelectedIndexChanged += cmbFacilityShape_SelectedIndexChanged;
ValidateFacility(cmbHierachy.Text, cmbFacilityType.Text, cmbFacilityConfiguration.Text);
}