When testing, I am using Internet Explorer 11.
Within a RadGrid control, I have a list of Groups (groupId, groupName) displayed. Each Group includes a DetailTable with the GroupMembers (memberId, groupId, memberName).
The RadGrid is located in a ContentPage that belongs to a MasterPage.
In the MasterPage, there is a RadAjaxManager present. Within the ContentPage, I have a RadAjaxManagerProxy with AjaxControlId referencing the RadGrid, and UpdatedControls also referring to the RadGrid.
Without using Ajax for full postback, the expansion/collapse of details works correctly without errors.
However, when utilizing Ajax, a webpage error occurs: Unspecified error. This issue arises frequently (around 80% of the time). While everything displays correctly, this peculiar message still appears. Even when using RadAjaxPanel instead of the proxied settings, the same error persists.
Upon debugging and delving into details, it crashes within ScriptResource.axd on line 835:
var b=g.getBoundingClientRect();
One of the traced functions includes:
$telerik.originalGetLocation [Line: 835, column: 2], ScriptResource.axd
commonScripts.getLocation [Line: 284, column: 2], ScriptResource.axd
commonScripts.getBounds [Line: 347, column: 25], ScriptResource.axd
$T.RadToolTip.prototype._getBoundsRelativeToElement [Line: 901, column: 19], ScriptResource.axd
$T.RadToolTip.prototype.getToolTipBounds [Line: 954, column: 54], ScriptResource.axd
Anonymous function [Line: 733, column: 81], ScriptResource.axd
Anonymous function [Line: 47, column: 9], ScriptResource.axd
$T.RadToolTip.prototype._playAnimation [Line: 740, column: 1], ScriptResource.axd
Anonymous function [Line: 667, column: 65], ScriptResource.axd
Anonymous function [Line: 47, column: 9], ScriptResource.axd
After conducting some tests, it seems to occur more frequently when rapidly clicking to expand/collapse details (perhaps not all content is fully loaded yet, but hard to pinpoint). However, even when taking my time and pausing between clicks, the issue still arises less often.
Despite days of internet research, no solution has been found yet. Confirming web.config settings are accurate, and httphandlers are properly configured.
I humbly request suggestions or steps to resolve this lingering problem.