How to Check for Column Name in SqlDataReader object in C# ?

Question

How to implement an Object Pool in C#.NET.

Answer 1

public static bool HasColumn(IDataRecord dataReader, string columnName)
{
    for (int i = 0; i < dataReader.FieldCount; i++)
    {
        if (dataReader.GetName(i).Equals(columnName, StringComparison.InvariantCultureIgnoreCase))
            return true;
    }
    return false;
}