How do I resolve my error when trying to convert a data type of VarChar to a Numeric type?

Question

On the line date=(int) datamanager.ExecuteScalar(CommandType.Text, Query); I am getting an error saying:

Error converting data type varchar to numeric.

In the GETEDITDATE query I'm trying to retrieve data that is of type varchar . How do I resolve this issue?

Code:

public string returneditdate(string receiptid, string ConString) {
    string Query = string.Empty;
    int date = 0;
    string dat = string.Empty;
    DataManager datamanager = null;
    try {
        datamanager = Supporter.GetDataManager();
        datamanager.ConnectionString = ConString;
        datamanager.Open();
        Query = DataSourceSQLConstants.GETEDITDATE.Replace("@fldreceiptid", receiptid.ToString());
        date = (int) datamanager.ExecuteScalar(CommandType.Text, Query);
        dat = date.ToString();
    }
}

Answer 1

If it's a varchar datatype, it is text. You need to use int.Parse method to convert it to a integer.