Intersoft Community - WebGrid Enterprise - Break in javascript ResponseLoadGroup with null LastRequestObj

Break in javascript ResponseLoadGroup with null LastRequestObj

Hans — Tue, 19 Aug 2014 02:25:27 GMT

Hello,

Thank you for your reply.

If you want to use “VirtualLoad” paging mode in large data, please kindly try to set the “VirtualLoadMode” property value to “LargeData”.
You can find the “VirtualLoadMode” property under <LayoutSettings> tag.

Regards,
Hans K.

Break in javascript ResponseLoadGroup with null LastRequestObj

RobertPehrson — Mon, 18 Aug 2014 05:31:37 GMT

Unfortunately it is not straightforward to extract the entire configuration, as it's constructed in code with quite a few different options. We have a workaround now and are not dependant on this bug being fixed.

The problem seems to occur when the grid attempts to restore expanded/collapsed grouped rows from a very large dataset with the grid configured to use 'VirtualLoad'. Changing the grid to use 'Paged' mode (where large data sets are broken down into pages of data) resolves the issue.

Break in javascript ResponseLoadGroup with null LastRequestObj

Hans — Thu, 14 Aug 2014 02:53:21 GMT

Hello,

I apologize for any inconvenience this problem may have caused you.

If you don’t mind, could you please provide me more information about your current WebGrid’s configuration?
So that I can investigate this issue further more.

Thank you for your help.

Regards,
Hans K.

Break in javascript ResponseLoadGroup with null LastRequestObj

RobertPehrson — Thu, 07 Aug 2014 06:24:27 GMT

I have a WebGrid that breaks in javascript when refreshing after updating data. The grid is complex, withgrouping at the top level and two levels of child table, and it is full, with 424, 1389 and 7116 records at the three levels of the hierarchy. The break does not occur when the volume of data is low, like 7, 30 and 904 records.

The grid loads ok initially, and when refreshing the grid after a data update, there is no problem while the progress message "Refreshing data..." shows. But then during "Loading group..." the client breaks with the exception:

Unhandled exception at line 1, column 104896 in http://localhost/ISRes.axd?G/WebGrid_UI.js/807200259

0x800a138f - JavaScript runtime error: Unable to get property 'fullPath' of undefined or null reference

The break is on p.fullPath where p is null in:

ResponseLoadGroup:function(c,q){var a=ISXml.GetNodeText(q,"//htmlString");var k=c.Tables[ISXml.GetNodeText(q,"//tblName")];var l=k.GetElement(WG40.BODY,WG40.HTMLTABLE);var p=c.LastRequestObj;var f=p.fullPath;

Is this a known problem, and is there a workaround (other than reducing the volume of data)?