How to Display Server-Side Error Messages in jqGrid?

How to Handle Server-Side Error Messages in jqGrid

In jqGrid, you can customize the handling of server-side errors by implementing the loadError callback function.

Checking for Errors

To determine if an error occurred, check the HTTP status code returned by the server. A successful response will typically have a status code of 200, while an error response will have a status code in the 400 or 500 range.

Displaying Error Messages

Once an error has been detected, you can display the error message to the user. One way to do this is to create a div element to contain the error message and display it above the grid.

Example

The following code snippet shows an example of a loadError implementation that displays error messages sent in a custom JSON format:

loadError: function (jqXHR, textStatus, errorThrown) {
    // Remove any existing error divs
    $('#' + this.id + '_err').remove();

    // Parse the error response
    var errorInfo = $.parseJSON(jqXHR.responseText);

    // Construct the error message
    var errorText = '';
    for (var i = 0; i < errorInfo.length; i += 1) {
        if (errorText.length !== 0) {
            errorText += "<hr/>";
        }
        errorText += errorInfo[i].Source + ": " + errorInfo[i].Message;
    }

    // Display the error message
    $(this).closest('div.ui-jqgrid').before(
        '<div>

By implementing the loadError callback function, you can customize the handling of server-side error messages in jqGrid, providing a more informative and user-friendly experience.

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