仅在复选框中选中的项目填充combox

Question

I want the checked items in the checklistbox to only populate the combobox.

    For i As Integer = 0 To chekBoxList1.Items.Count - 1
        If chekBoxList1.GetItemCheckState(i) = CheckState.Checked Then
            comboBox1.Items(i).Add = chekBoxList1.Items(i)
        End If
    Next

This code gets highlighted for an error: cboShipment.Items(i).Add = chkLstShipments.Items(i)

The Error:

"InvalidArgument=Value of '0' is not valid for 'index'. Parameter name: index"

Any suggestion for correction is appreciated!

Answer 1

使用ComboBox1.Items.Add（chekBoxList1.Items（i））

Answer 2

While others in the comments suggested the second problem, you do not need to specify an index when using .Add().

To fix this completely, the final line should look like such:

comboBox1.Items.Add(chekBoxList1.Items(i))