private void comboBoxEdit1_Properties_MouseEnter(object sender, EventArgs e)
{
comboBoxEdit1.Properties.Items.Clear();
searchdispatchdatatable = SQLMethod.Search_dispatchdatatable();
for (int i = 0; i < searchdispatchdatatable.Count; i++)
{
comboBoxEdit1.Properties.Items.Add(searchdispatchdatatable[i].projectno);
}
}