public Stock_Out()
{
InitializeComponent();
categoryComboBox.DataSource = stockOutManager.GetCategoryTable(category);
companyComboBox.DataSource = stockOutManager.GetCompanyTable(company);
itemComboBox.DataSource = stockOutManager.GetItemTable(item);
categoryComboBox.SelectedItem = null;
companyComboBox.SelectedItem = null;
itemComboBox.SelectedItem = null;
categoryComboBox.Text = "------Select-------";
companyComboBox.Text = "------Select-------";
itemComboBox.Text = "------Select-------";
reorderLabel.Text = String.Empty;
quantityLabel.Text = String.Empty;
}