---
substitutions:
  prop: |-
    ```{image} ico/prop.ico
    ```
---

# WebRequestException Class

The exception that is thrown when an error occurs while sending a request.

**Namespace:** powerGate.Erp.Client\
**Assembly:** powerGate.Erp.Client.dll

## Inheritance Hierarchy

[System.Object](<https://msdn.microsoft.com/en-us/library/system.object(v=vs.110).aspx>)\
&emsp;[System.Exception](<https://msdn.microsoft.com/en-us/library/system.exception(v=vs.110).aspx>)\
&emsp;&emsp;**powerGate.Erp.Client.WebRequestException**

## Syntax

```{code-block} CSharp
:linenos:

public class WebRequestException : Exception
```

The following members which allow to determine why the Web server response was not successful:

## Properties

| Type            | Name        | Description                                                                                                                                                                       |
|-----------------|-------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| {{prop}} string | Message     | Gets a human-readable message that describes the current exception (Inherited from [System.Exception](https://msdn.microsoft.com/en-us/library/system.exception(v=vs.110).aspx)). |
| {{prop}} int    | StatusCode  | Gets the [HTTP status code](https://en.wikipedia.org/wiki/List_of_HTTP_status_codes) of the server response.                                                                      |
| {{prop}} string | RawResponse | Gets the plain message body from the server response.                                                                                                                             |
| {{prop}} object | Response    | Gets the error data from the OData response or null for generic HTTP error responses.                                                                                             |


## Remarks

Exceptions of this type are thrown by the [ErpClient](erpclient), [ErpEntitySet](ierpentityset) and [MediaResources](imediaresources) when requesting data from the ERP Services.

The **Message** property returns the error message from within the OData response (the message of the most *InnerError* is provided, when such data is available in the OData response).\
For generic HTTP error responses a returned [reason phrase](https://en.wikipedia.org/wiki/Hypertext_transfer-Protocol#Response_messages) provides further information about the nature of the problem.

The **Response** property provides access to the data within OData error responses (see [OData v3](https://www.odata.org/documentation/odata-version-3-0/json-verbose-format/#representingerrorsinaresponse) and [OData v4](http://docs.oasis-open.org/odata/odata-json-format/v4.01/odata-json-format-v4.01.html#_Toc38457793)):

- The property `Message` contains a human-readable representation of the error.
- `ErrorCode` returns a service-defined error code which serves as a sub-status for the HTTP *StatusCode*.
- `InnerError` data can be available and contains information that will help to debug the service.

## See also

**Reference**

- [powerGate.Erp.Client namespace](/code_reference/net_library)