Reading A Fixed Format Text File

问题

Its been years since I have had to attempt to read a file using either Microsoft Text ODBC Driver or Microsoft Jet OLE DB 4.0 Provider.

So I have the following code

public void Example()
{
string CVS = Application.StartupPath;
string SQL = "SELECT * FROM [MyFile.txt]";
string Connection = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+CVS+";"+"Extended Properties='text;HDR=Yes;FMT=Fixed;";
OleDbDataAdapter OLE = new OleDbDataAdapter(SQL,Connection);
DataTable Table = new DataTable();
OLE.Fill(Table);
}

When I run the above code I get an "Unexpected Error", I know I am missing something, I am not sure what exactly.

Sources:

http://www.connectionstrings.com/textfile
http://www.connectionstrings.com/Providers/net-framework-data-provider-for-ole-db
http://www.aspdotnetcodes.com/Importing_CSV_Database_Schema.ini.aspx

Any direction would be appreciated.

Let us assume the Schema.ini file is correct. It has 30 and 60 length text values. I will provide the document if requested.

回答1:

Remove ' (just prior to 'text;) from the connection string.

In order to resolve the "Could not find installable ISAM", run the following command: Regsvr32 c:\winnt\system32\mstext40.dll * Make sure that file is in that folder first. And change WINNT to whatever your windows directory is.

回答2:

I know this is not a real answer to your question, but i would really rethink about using this architecture to read in a file.

I would really prefer something like CSV Reader, cause it gives you much more power about how the data will be interpreted. Alternative you could also take a look into the FileHelpers.

来源：https://stackoverflow.com/questions/9036505/reading-a-fixed-format-text-file