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處理未造成例外狀況的警告與案例

Reporting Services 不會擲回警告與某些錯誤的例外狀況。例如，當您使用 CreateReport 方法來將新報表發行到報表伺服器時，會以 Warning 物件的陣列傳回發生的任何警告。應該處理和顯示這些警告，才能採取適當的動作。

Try
   warnings = rs.CreateReport(name, parentFolder, False, definition, Nothing)

   If Not (warnings Is Nothing) Then
      Dim warning As Warning
      For Each warning In warnings
         Console.WriteLine(warning.Message)
      Next warning
   Else
      Console.WriteLine("Report {0} created successfully with no warnings", name)
   End If

Catch ex As SoapException
   Console.WriteLine(ex.Detail("Message").InnerXml)
End Try
try
{
   warnings = rs.CreateReport(name, parentFolder, false, definition, null);

   if (warnings != null)
   {
      foreach (Warning warning in warnings)
      {
         Console.WriteLine(warning.Message);
      }
   }
   else
      Console.WriteLine("Report {0} created successfully with no warnings", name);
}

catch (SoapException ex)
{
   Console.WriteLine(ex.Detail["Message"].InnerXml);
}

處理錯誤的另一項方法是評估某些方法的傳回值。例如，FindItems 方法可用以搜尋報表伺服器資料庫中的特定項目。如果找不到符合搜尋準則的項目，則會傳回 CatalogItem 物件的 Null 陣列。您應該評估陣列、檢查 null，而且如果找不到項目，應該讓使用者知道。