.Net Trigger, Reading All The Data

I have a trigger written in C# which I have added to the insert event on a table, however, when testing it generates a "System.Data.SQLClient.SqlException; Cannot use text, ntext, or image columns in the 'inserted' and 'deleted' tables"

My code is attempting to read all the column names & the data contained in them as the record is created, so a solution that allows me to read all the data from each column is what I am after.


Code Extract:

public static void splTrigger()
{
SqlTriggerContext triggContext = SqlContext.TriggerContext;
// string userName, realName;
SqlConnection connection = new SqlConnection("context connection = true");
connection.Open();
SqlCommand command = connection.CreateCommand();
SqlDataReader reader;
string data = "";

switch (triggContext.TriggerAction)
{
case TriggerAction.Insert:
command.CommandText = "SELECT * from " + "inserted";
reader = command.ExecuteReader();
//userName = (string)reader[0];
//realName = (string)reader[1];
// prepare data as name value pairs
for (int i = 0; i < reader.FieldCount; i++)
{
data = data + reader.GetName(i) + ":" + (string)reader[ i ] + " ";
}
break;
...
}}