combobox

[suda]

I am filling data as follows.

Dim list As New DataTable()

list.Columns.Add(New DataColumn("Display", GetType(String)))

list.Columns.Add(New DataColumn("Id", GetType(Integer)))

list.Rows.Add(list.NewRow())

list.Rows.Add(list.NewRow())

list.Rows.Add(list.NewRow())

list.Rows(0)(0) = "one" '

list.Rows(0)(1) = 1 '

list.Rows(1)(0) = "two" '

list.Rows(1)(1) = 2 '

list.Rows(2)(0) = "three" '

list.Rows(2)(1) = 3 '

comboBox1.DataSource = list

comboBox1.DisplayMember = "Display"

comboBox1.ValueMember = "Id"

I want to deselect the values in the combo,
I am using
selectindex = -1 but it is nopt working it is displaying the 1 st record
To select I am supposed to do 2 times selectindex = -1 .
I am doing anything wrong.
Please give me a solution for this