private void readDataButton_Click(object sender, EventArgs e)
{
ServiceReference.ServiceClient obj = new ServiceReference.ServiceClient();
ServiceReference.Building testObjcet = new ServiceReference.Building();
testObjcet = obj.TestBuilding();
idBuildingTextBox.Text = testObjcet.IdBuilding.ToString();
cityTextBox.Text = testObjcet.City;
streetTextBox.Text = testObjcet.Street;
postCodeTextBox.Text = testObjcet.PostCode;
buildingNumberTextBox.Text = testObjcet.BuildingNumber;
}