Not able to retrieve Integer Value from excel in C#

[Shirin14]

Hello,

I am trying to retrive data from excel sheet based on a query , I have stored the excel sheet in an ODBC Driver.

The Query is : "select Newvalue from [Sheet1$] where Oldvalue='" + value + "'"

It works fine if the value which i am passing as old value is a string eg.abc , it returns an appropriate New Value for the old value passed from the excel sheet However, the Problem arises when the value passed is an integer value eg.757869

I get error on this lines

if (readData.HasRows) and while (readData.Read())


Below is the code which I have written:

OdbcConnection connectExcel = null;
connectionStringExcel = "DSN=abc;

try
{
connectExcel = new OdbcConnection(connectionStringExcel);
OdbcCommand DBCommandExcel = connectExcel.CreateCommand();

/* OdbcCommand*/
DBCommandExcel = new OdbcCommand("select NewId from [Sheet1$] where OldId='" + value + "'", connectExcel);
connectExcel.Open();
DBCommandExcel.ExecuteNonQuery();
try
{
OdbcDataAdapter adapter = new OdbcDataAdapter();
OdbcDataReader readData = DBCommandExcel.ExecuteReader();
int fCount = readData.FieldCount;

if (readData.HasRows)
{
while (readData.Read())
{
for (int i = 0; i < readData.FieldCount; i++)
{
id= readData.GetValue(i).ToString();
}
}
}

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