Unhandled exception occurred - System.IndexOutOfRangeException: upc

I added a new table to our database named upc.

When I add it to the front end of our site, I'm getting this error:

Description: An unhandled exception occurred during the execution of the current web 开发者_运维技巧request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IndexOutOfRangeException: upc

Source Error:

    if (!Sdr["upc"].ToString().Trim().Equals(""))

           liupc.InnerHtml = "upc: " + Sdr["upc"].ToString();

    else

I'm not sure what this error means or how I can resolve it - any insight is much appreciated.

I'm guessing (you really need to show more code) that "Sdr" is a SqlDataReader instance. If that's the case, you would not reference the table inside the indexer, but columns in the table (or whatever resultset) after a call to SqlCommand.ExecuteReader().

Something like:

SqlCommand cmd = ...;

SqlDataReader Sdr = cmd.ExecuteReader();

while(Sdr.Read())
{
    var value = Sdr["column_name"];
    // etc...
}

Also, see System.Data.SqlClient.SqlDataReader.

Simply put, it isn't recognizing "upc" as a string index in your array Sdr.

change line 120 to be,

if(!string.IsNullOrEmpty(Sdr["upc"]))

and try that.