---
myst:
  substitutions:
    prop: |-
      ```{image} /img/code_reference/net_library/prop.ico
      ```
    ms_exception_link: |-
      [System.Exception](<https://docs.microsoft.com/en-us/dotnet/api/system.exception?redirectedfrom=MSDN&view=netframework-4.5>) 
---

# 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;{{ms_exception_link}}\
&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 {{ms_exception_link}}).                                                             |
| {{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.                                                                                  |
| {{prop}} int    | StatusCode  | Gets the [HTTP status code](<https://en.wikipedia.org/wiki/List_of_HTTP_status_codes>) of the server response.                                                         |
| {{prop}} string | Source      | Indicates in which part of the ERP integration the error was caused (by the *"Local computer"*, *"powerGateServer"* or the "*ERP system*"). (Inherited from {{ms_exception_link}}).                                  |
| {{prop}} string | StackTrace  | Gets a string representation of the immediate frames on the call stack (provided by the powerGateServer Plugin or Erp system). (Inherited from {{ms_exception_link}}). |

## 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#HTTP/1.1_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>)