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    <p>Here is what I did:</p> <p>In controller, I placed try catch:</p> <pre><code> try { //model = getmodelfromdb(); return View("MyView", model); } catch (Exception ex) { Elmah.ErrorSignal.FromCurrentContext().Raise(ex); return View("../Error/ShowException", ex); } </code></pre> <p>For custom view for 404, I did this in global.asax:</p> <pre><code> protected void Application_OnError( ) { var exception = Server.GetLastError( ); Elmah.ErrorSignal.FromCurrentContext().Raise(exception); Helper.SetSessionValue(SessionKeys.EXCEPTION, exception); Response.Redirect( "~/Error/ShowException"); } </code></pre> <p>For jqgrid, I did this in my controller:</p> <pre><code> [HttpPost] public ActionResult ListRecords( int page , DateTime? fromdate , DateTime? todate) { try { var list = FetchListFromDB(); var result = new { total = Math.Ceiling(list.Count / (decimal)Helper.PAGE_SIZE), page = page, //--- current page records = list.Count, //--- total items rows = list.List.Select(x =&gt; new { id = x.EntityID, cell = new string[] { x.Property1, x.Property2 } }).ToArray() }; return Json(result, JsonRequestBehavior.AllowGet); } catch (Exception ex) { var result = new { errorMessage = "An unexpected error occurred while fetching data. An automatic email has been generated for the support team who will address this issue shortly. Details: " + ex.Message, records = 0 }; Elmah.ErrorSignal.FromCurrentContext().Raise(ex); return Json(result, JsonRequestBehavior.AllowGet); } </code></pre> <p>And this in the View (in the jqgrid definition):</p> <pre><code> loadComplete:function(data) { if (data.errorMessage) { alert(data.errorMessage); } }, </code></pre> <p>In a general ajax scenario:</p> <pre><code> success: function(data) { if (data.errorMessage) { alert(data.errorMessage); } else { //... } }, </code></pre>
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    1. USRaza Ali
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    1. COThis will work, but I would *strongly* advise against `catch (Exception ex)` unless you do it very carefully. Catch the specific exception types you're expecting; you never know when this might catch some other exception and prevent it from getting to its proper handler, or from reaching somewhere it'll make sense to you when debugging. I'd also advise against showing the users your exception messages; you don't want to expose the details of how your application works. Best case scenario is that it'll mean nothing to them; worst case is that it helps a malicious user understand your system.
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    2. COThanks for the good advice.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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