Having limited experience with MVC, Json, jQuery, etc., I am currently working on validating a form within a Modal popup using a JsonResult method to post the data to the server. Although my initial preference was to load a Partial View in the popup, that option is unavailable.
Previously, my validation code was functional before a Git pull/push caused some issues. While I perform basic JavaScript validation for required fields and correct data types, more complex validations like ensuring unique user input require business logic processing.
Upon research, I discovered that in order for jQuery to detect errors from a JsonResult in an AJAX request, an HTTP Status Code must be included. It appears any number in the 400's or 500's should suffice.
Currently, I set the Status Code and Description using Response.StatusCode and Response.StatusDescription, but only the Status Code seems to reach my jQuery script. Despite confirming correct settings in the C# code, extracting the custom Status Description remains challenging.
Below are snippets of the code:
The Modal Popup
<fieldset id="SmtpServer_QueueCreate_Div">
@Form.HiddenID("SMTPServerId")
<div class="editor-label">
@Html.LabelFor(model => model.ServerName)
<br />
<input type="text" class="textfield wide-box" id="ServerName" name="ServerName" title="The display name of the Server" />
<br />
<span id="ServerNameValidation" style="color:Red;" />
</div>
<div class="editor-label">
<span id="GeneralSMTPServerValidation" style="color:Red;" />
</div>
<br />
<p>
<button type="submit" class="button2" onclick="onEmail_SmtpServerQueueCreateSubmit();">
Create SMTP Server</button>
<input id="btnCancelEmail_SmtpServerQueueCreate" type="button" value="Cancel" class="button"
onclick="Email_SmtpServerQueueCreateClose();" />
</p>
</fieldset>
The Controller
[HttpPost]
public virtual JsonResult _QueueCreate(string serverName)
{
Email_SmtpServerModel model = new Email_SmtpServerModel();
string errorMessage = "";
try
{
// Business logic processing
}
catch (Exception ex)
{
errorMessage = ex.Message;
}
Response.StatusCode = 500;
Response.StatusDescription = errorMessage;
return Json(model);
}
The jQuery Ajax Request
$.ajax({
type: 'POST',
data: { ServerName: serverName },
url: getBaseURL() + 'Email_SmtpServer/_QueueCreate/',
success: function (data) { onSuccess(data); },
error: function (xhr, status, error) {
$('#GeneralSMTPServerValidation').html(error);
}
});
Yesterday, this setup displayed informative messages when encountering non-unique names. However, the current outcome is displaying an "Internal Server Error" message without the custom Status Description. After attempting different status codes, I faced either no message or incorrect text being displayed.
Any insights into what might have changed or gone wrong in the code would be greatly appreciated!
If additional code snippets are needed, please let me know.
Thank you!