I need to programmatically open an Excel file that is stored in a MOSS 2007 Shared Documents List. I’d like to use an OleDbConnection so that I may return the contents of the file as a DataTable. I believe this is possile since a number of articles on the Web imply this is possible. Currently my code fails when trying to initialize a new connection (oledbConn = new OleDbConnection(_connStringName); The error message is:
Format of the initialization string does not conform to specification starting at index 0.
I believe I am just not able to figure the right path to the file. Here is my code:
public DataTable GetData(string fileName, string workSheetName, string filePath)
{
// filePath == C:\inetpub\wwwroot\wss\VirtualDirectories\80\MySpWebAppName\Shared Documents\FY12_FHP_SPREADSHEET.xlsx
// Initialize global vars
_connStringName = DataSource.Conn_Excel(fileName, filePath).ToString();
_workSheetName = workSheetName;
dt = new DataTable();
//Create the connection object
if (!string.IsNullOrEmpty(_connStringName))
{
SPSecurity.RunWithElevatedPrivileges(delegate()
{
oledbConn = new OleDbConnection(_connStringName);
try
{
oledbConn.Open();
//Create OleDbCommand obj and select data from worksheet GrandTotals
OleDbCommand cmd = new OleDbCommand("SELECT * FROM " + _workSheetName + ";", oledbConn);
//create new OleDbDataAdapter
OleDbDataAdapter oleda = new OleDbDataAdapter();
oleda.SelectCommand = cmd;
oleda.Fill(dt);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
finally
{
oledbConn.Close();
}
});
}
return dt;
}
public static OleDbConnection Conn_Excel(string ExcelFileName, string filePath)
{
// filePath == C:\inetpub\wwwroot\wss\VirtualDirectories\80\MySpWebAppName\Shared Documents\FY12_FHP_SPREADSHEET.xlsx
OleDbConnection myConn = new OleDbConnection();
myConn.ConnectionString = string.Format(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filePath + ";Extended Properties=Excel 12.0");
return myConn;
}
What am I doing wrong, or is there a better way to get the Excel file contents as a DataTable?
