I have a combobox in my form which shows the employee names.If I select one of the names from it I want its corresponding employee id stored in the database.How can I do this?Please help me.Thanks in advance

You can either bind all the items on the form including the combo box or you can use a SQL statement. You then manually add the information to the components on the form. The SQL statement will be as a normal SQL statement except at the end you will have WHERE empName='" & addVarNameHere & "';". This might not be the best way, but it is a way.

ComboBox.DataSource = Employees // SomeArrayof employees(ArrayList, Array, Collection)
ComboBox.Displaymember = EmployeeName
ComboBox.ValueMember = EmployeeId

if you call ComboBox.SelectedValue you will get employee Id value