how do I set the values of one comboBox based on another comboBox

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C#3.5

Hi everybody,

Following is my code

class CItemList
    {
            public string Name;
            public long Value;

            public CNameList(string name, long value)
            {
                Name = name;
                Value = value;
            }

            public override string ToString()
            {
                 Generates the text shown in the combo box
                return Name;
            }
    }

with which i am adding values to both 1) combo_box_1 and 2) combo_box_2.
I am able to retrieve the ID from combo_box_1.
Now, I would like to know how I can set the values of combo_box_2 based on this ID.
Was simple in VB.Net. But unable to figure it out in C#.Net. Please help. Thank you in advance.