protected function dtgDepreciationClass_Bind()
{
$this->dtgDepreciationClass->TotalItemCount = DepreciationClass::CountAll();
if ($this->dtgDepreciationClass->TotalItemCount == 0) {
$this->dtgDepreciationClass->ShowHeader = false;
} else {
$this->dtgDepreciationClass->DataSource = DepreciationClass::LoadAll();
$this->dtgDepreciationClass->ShowHeader = true;
}
}