Posted 4 September 2018, 4:47 am EST
Hi,
I’m using version 4.0.20182.291 of the C1.Web.Wijmo. Controls.4, targeting .Net 4.71 and have found some odd behaviour. I have a data set of about 2500 rows by 27 columns and have set paging to show 15 rows per page, and allow filtering.
I have two buttons to export as CSV or XSLX files respectively, and have the option to export only the visible page, or everything.
When I filter and cut down the number of entries to less than 1500 or so, the processing goes reasonably quickly (a few seconds to have the web service produce the output file), but when I have all the rows present, it can take up to a minute.
During that time, I have no way of showing the user feedback that something’s happening, as the web service call is made, but, although it ties up the web page, the calling function terminates.
Is there any way of setting up a callback function so I know when the web service has completed, so I can turn a wait cursor on and off? Also, why does the full grid take so much longer to create than the partial grid, when even at it’s largest size, it’s still only 2500 by 27?
Thanks in advance for your thoughts…
