hi guys

i have a combo box inside datagrid

comboBox.DataSource = myAcctng.getGenLedger
ComboBox.DisplayMember = "ACDESC"
ComboBox.ValueMember = "ACNO"
ACDESC IS COMBINATIon of acno and description
so i have two colmns in my displaymember

acno description
1 ASSETS
11 CURRENT ASSETS
1101 Petty cash fund
1102 Change fund
1103 Cash on hand
1104 Cash in bank
1104001 Cash in bank - MBTC (MKNA)
1104002 Cash in bank - BANCO DE ORO

the problem is when i type 1104001 and press tab in deletes what i choose so that the combo box is null if i set it top dropdownlist , when i try to type 1104001, it stops in 1104, i want just the keyboard to choose not them mouse,

hope u understand it