EXCEL VBA (Combo Box)

[newbie26]

Hi,
Can someone help me.
I need to create a VBA project in excel using combo box.
For example, I have in column A, combo box of ITEMSA and in column B, combo box of ITEMSB.
If I choose items from ITEMSA, just the corresponding items that will match will be displayed in combo box B.

ITEMS A
Paris
New York
London

ITEMS B
A
B
C
D
E
F
G

if I choose "Paris" from Combo Box A, what will be displayed in combo box B are:
A
B
C

and if I choose "New York"
D
E
F

and so on..

please help.
thanks..

[ss125]

USe datatable to store the excel data

and use the following connection string for excel file

try these:

                    string fileName = Path.GetFileName(FileUpload1.PostedFile.FileName);
                    string fileExtension = Path.GetExtension(FileUpload1.PostedFile.FileName);
                    string fileLocation = Server.MapPath("~/App_Data/" + fileName);
                    FileUpload1.SaveAs(fileLocation);
                    //Check whether file extension is xls or xslx
                    if (fileExtension == ".xls")
                    {
                        connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + fileLocation + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=2\"";
                    }
                    else if (fileExtension == ".xlsx")
                    {
                        connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileLocation + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=2\"";
                    }

                    //Create OleDB Connection and OleDb Command
                    OleDbConnection con = new OleDbConnection(connectionString);
                    OleDbCommand cmd = new OleDbCommand();
                    cmd.CommandType = System.Data.CommandType.Text;
                    cmd.Connection = con;
                    OleDbDataAdapter dAdapter = new OleDbDataAdapter(cmd);
                    DataTable dtExcelRecords = new DataTable();
                    con.Open();
                    DataTable dtExcelSheetName = con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
                    string getExcelSheetName = dtExcelSheetName.Rows[0]["Table_Name"].ToString();
                    cmd.CommandText = "SELECT * FROM [" + getExcelSheetName + "]";
                    dAdapter.SelectCommand = cmd;
                    dAdapter.Fill(dtExcelRecords);
                    con.Close();