如何在 jqGrid 中有效處理伺服器端錯誤訊息和驗證？

Handling Server-Side Error Messages and Validation in jqGrid

In your JSON responses, you have a 'STATUS' and 'errors' property and need a method to parse these errors and display them in a dialog box when 'status' is 'ERROR'.

Using HTTP Status Codes for Error Handling

HTTP responses have a status code that indicates the success or failure of the request. jqGrid uses this status code to determine how to handle the response. If the status code is not 200 (OK), jqGrid will consider it an error.

In your case, you should use error HTTP status codes for responses that contain errors. This is the standard method for indicating that something went wrong.

Customizing Error Handling

If you need more control over error handling, you can define a custom function for the loadError event. This function will be called when jqGrid receives an error response.

Here is a sample implementation:

$("#grid").jqGrid({
  loadError: function(jqXHR, textStatus, errorThrown) {
    var errorMessage = jqXHR.responseText; // Get the error message from the server
    alert(errorMessage); // Display the error message
  }
});

In this example, the error message is simply displayed in an alert box. You can customize the message and display it in the dialog box as needed.

Additional Resources

Refer to the following resources for more information:

• [jqGrid Events](https://www.trirand.com/jqgridwiki/doku.php?id=wiki:events)
• [HTTP Status Codes](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status)
• [ASP.NET MVC and HTTP Error Codes](https://stackoverflow.com/questions/6541495/custom-http-error-response-in-asp-net-mvc)

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