Populating combobox with items and values from arrays

Hi,
I am trying to populate a combobox from 2 string arrays, the first array contains the name of the item and te second one contains the value of the item:
string[] RangeName;
string[] RangeValue;

RangeName = (new string[] { "Uni10Volts", "Uni5Volts", "Uni2Pt5Volts", "Uni2Volts"});
RangeValue = (new string[] { "100", "101", "102","103"});

so, when the user selects i.e Uni10Volts from the combobox, I want to be able to retrieve the value 100 when using the SelectedValue property. what do I need to add to the following code:
int i;
for (i = 0; i < RangeName.Length; i++)
   {
        this.cmbScanRange.Items.Add(RangeName[i]);  //This will add the array to the combobox

        // what do I need to add here
   }

It was really easy in vb with the DataFieldValue and DataFieldText but I don't have such an options.

does anyone know how to accomplish this task?

thanks