Question

I am doing this:

var command = new SqlCommand(query, myConnection);
                foreach (DataRow row in dt.Rows)
                {
                    query = @"update FileLog set
                    FaxStatus=" + "'" + row.ItemArray[0].ToString() + "'," +
                    "FaxedPageCount=" + "'" + row.ItemArray[1].ToString() + "'," +
                    "dtFaxed=" + "'" + row.ItemArray[2].ToString() + "'," +
                    "RetryCount=" + "'" + row.ItemArray[4].ToString() + "' " +
                    "where JobID=" + "'" + row.ItemArray[3].ToString() + "'";
                    command = new SqlCommand(query, myConnection);
                   command.ExecuteNonQuery();

                }

JobID is a uniqueidentifier

And I am getting this error:

Conversion failed when converting from a character string to uniqueidentifier.

What am I doing wrong?

The JobID field looks like this:

DB9424E5-1E73-4108-A855-B252E516A2A2
2EB17B8B-C0A1-46FE-82AF-37AEF2A8A6EC
C24F0460-7667-4A3A-8D8F-64B9728C2359
8DCDB020-8C7B-493E-9D21-719CBAFC16B6

Answer 1

i found the solution. turns out you need to do this:

                var command = new SqlCommand(query, myConnection);
                foreach (DataRow row in dt.Rows)
                {
                    query = @"update FileLog set
                    FaxStatus=" + "'" + row.ItemArray[0].ToString() + "'," +
                    "FaxedPageCount=" + "'" + row.ItemArray[1].ToString() + "'," +
                    "dtFaxed=" + "'" + row.ItemArray[2].ToString() + "'," +
                    "BiscomCode=" + "'" + row.ItemArray[5].ToString() + "', " +
                    "RetryCount=" + "'" + row.ItemArray[4].ToString() + "' " +
                    "where CONVERT(VARCHAR(255), JobID) =" + "'" + row.ItemArray[3].ToString() + "'";
                    command = new SqlCommand(query, myConnection);
                   command.ExecuteNonQuery();

                }

you have to convert it to a varchar first