Problem with selecting individual ComboBox in an Array of ComboBox Control

private string[] dataTypes = {"bigint", "int", "smallint", "tinyint", "bit", "decimal", "numeric", "money", "smallmoney", "float", "real", "datetime", "smalldatetime", "char", "varchar", "text", "nchar", "nvarchar", "ntext", "binary", "varbinary", "image", "cursor", "sql_variant", "table", "timestamp", "uniqueidentifier"};



for(int i = 0; i < dataTypeComboBox.Length; i++){
                this.Controls.Add(this.dataTypeComboBox[i]);
                this.dataTypeComboBox[i].DataSource = dataTypes;
}