void refreshCategoriesGrid()
{
bs = ClientCommands.refreshCategories(nameField);
dataGridView1.DataSource = bs.DataSource;
}
public void refreshCategories()
{
bs3 = ClientCommands.refreshCategories(nameField);
comboBox1.DataSource = comboBox2.DataSource = bs3.DataSource;
comboBox1.DisplayMember = comboBox2.DisplayMember = nameField;
}