Function to Write to DataTables

WriteDataTableFunc.cs

public void WriteClickLinks(DataTable dt, string filepath)
        {

            StreamWriter output = new StreamWriter(filepath);
            StringBuilder sb = new StringBuilder();
            using (output)
            {

                foreach (DataColumn col in dt.Columns)
                {
                    sb.Append(col.ColumnName + tab);

                }
                
                sb.Length--;
                sb.Append(Environment.NewLine);

                foreach (DataRow row in dt.Rows)
                {
                    foreach (DataColumn col in dt.Columns)
                    {
                        sb.Append((row[col.ColumnName].ToString()) + tab);
                    }
                    
                    sb.Length--;
                    sb.Append(Environment.NewLine);
                }

                output.Write(sb);
            }

        }