private void BtnAdd_Click(object sender, RoutedEventArgs e)
        {
            string msg = string.Empty;

            if (Equipment.getEquipId == null)
            {
                string    query = "select top 1 id from as_bodenbelag order by id desc";
                DataTable dt    = DataConnection.GetData(query);
                int       id    = 1;
                if (dt != null && dt.Rows.Count == 1)
                {
                    id    = Convert.ToInt32(dt.Rows[0][0].ToString()) + 1;
                    query = "insert into as_bodenbelag values('" + Application.Current.Properties["BuildingId"] + "','" + Application.Current.Properties["LevelId"] + "','" + Application.Current.Properties["CadId"] + "'," + id + ",'','" + cbBodenbelagtyp.SelectedValue + "'," + txtFlaeche.Text + ")";
                    msg   = DataConnection.ExecuteQuery(query);
                }
                else if (dt != null && dt.Rows.Count >= 1)
                {
                    int status = 0;
                    for (int i = 0; i < dt.Rows.Count; i++)
                    {
                        if (dt.Rows[i][0].ToString() != "")
                        {
                            id     = Convert.ToInt32(dt.Rows[0][0].ToString()) + 1;
                            query  = "insert into as_bodenbelag values('" + Application.Current.Properties["BuildingId"] + "','" + Application.Current.Properties["LevelId"] + "','" + Application.Current.Properties["CadId"] + "'," + id + ",'','" + cbBodenbelagtyp.SelectedValue + "'," + txtFlaeche.Text + ")";
                            msg    = DataConnection.ExecuteQuery(query);
                            status = 1;
                            break;
                        }
                    }
                    if (status == 0)
                    {
                        query = "insert into as_bodenbelag values('" + Application.Current.Properties["BuildingId"] + "','" + Application.Current.Properties["LevelId"] + "','" + Application.Current.Properties["CadId"] + "'," + id + ",'','" + cbBodenbelagtyp.SelectedValue + "'," + txtFlaeche.Text + ")";
                        msg   = DataConnection.ExecuteQuery(query);
                    }
                }
                else
                {
                    query = "insert into as_bodenbelag values('" + Application.Current.Properties["BuildingId"] + "','" + Application.Current.Properties["LevelId"] + "','" + Application.Current.Properties["CadId"] + "'," + id + ",'','" + cbBodenbelagtyp.SelectedValue + "'," + txtFlaeche.Text + ")";
                    msg   = DataConnection.ExecuteQuery(query);
                }
                //var myWindow =
                if (msg == "Executed")
                {
                    query = "select top 1 id from as_bodenbelag order by id desc";
                    dt    = DataConnection.GetData(query);
                    if (dt != null && dt.Rows.Count > 0)
                    {
                        UpdateChildGetSet     = true;
                        SelectChildTypeValues = "EquipId " + dt.Rows[0][0].ToString() + ": " + "bodenbelag " + cbBodenbelagtyp.SelectedValue + "," + txtFlaeche.Text;
                        Window.GetWindow(this).Close();
                    }
                }
                else
                {
                    MessageBox.Show("Please select/enter correct input values");
                }
            }
            else
            {
                string updatedcolumns = "bodenbelagstyp='" + cbBodenbelagtyp.SelectedValue + "' , flaeche='" + txtFlaeche.Text + "'";
                msg = EquipmentData.UpdateEquipment("as_bodenbelag", updatedcolumns, Equipment.getEquipId);
                if (msg == "Executed")
                {
                    UpdateChildGetSet     = true;
                    SelectChildTypeValues = "EquipId " + Equipment.getEquipId + ": " + "bodenbelag " + cbBodenbelagtyp.SelectedValue + "," + txtFlaeche.Text;
                    Window.GetWindow(this).Close();
                }
                else
                {
                    MessageBox.Show("Please select/enter correct input values");
                }
            }
        }