Re: Wicket Kendo UI - Grid/Chart datasources not cleaned up
Thank you guys. Manfred -- Sent from: http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket Kendo UI - Grid/Chart datasources not cleaned up
Hi Manfred, Alternatively, you can have a look at KendoDestroyListener, Initializer, and classes implementing IDestroyable in Wicket jQuery UI... Thanks and best regards, Sebastien
Re: Wicket Kendo UI - Grid/Chart datasources not cleaned up
Hi Manfred, See org.apache.wicket.protocol.http.AjaxEnclosureListener for inspiration. You'll need to do something similar - check whether any of the components in the passed Map is a parent of a Grid or Chart and destroy it so it cleans the DOM. On Tue, Sep 10, 2019 at 6:15 PM Manfred Bergmann wrote: > OK, maybe it's better to follow up on this while it hot. > > I'm not entirely certain what to do and where. > I'd assume that when a user clicks elsewhere, which raises an > AjaxRequestTarget I'll have to add a functionality to destroy the > chart/grid > as part of the AjaxRequestTarget. > But since the click can be anywhere, should this listener be part of the > Grid/Chart component? > Can you briefly guide me on what to do? > > > Manfred > > > > Manfred Bergmann wrote > > Hi Martin. > > > > OK, thanks. That looks like a doable solution. > > I'd go for the Listener but I'll probably have to ask some more when I'm > > going to implement it. > > > > > > Manfred > > > > > > > > Martin Grigorov-4 wrote > >> Hi Manfred, > >> > >> The #refresh(PartialPageUpdateHandler) methods are useful if you update > >> the > >> specific component. > >> They do not help if you repaint a parent of such a component. > >> In your case you will need to destroy the component (grid, chart) in > your > >> action callback (e.g. onUpdate(), onClick()). > >> You can do this in your code or with AjaxRequestTarget.Listener. If you > >> do > >> the Listener then you can donate it to Wicket JQuery UI project. > >> > >> On Tue, Sep 10, 2019 at 10:52 AM Manfred Bergmann < > > > >> mb@ > > > >> > > >> wrote: > >> > >>> Hi Sebastian. > >>> > >>> Thanks for the additional explanation. > >>> But I'm not fully sure for how this is supposed to work in my case > given > >>> this structure/hierarchy: > >>> page -> panel(a) -> panel(b) -> grid/chart > >>> > >>> Where panel (a) is replaced. Any instance of panel (b) can have a > >>> grid/chart > >>> but it can also host something else (depends on what is being > >>> displayed). > >>> I understand that when panel (a) is replaced it is garbage collected > and > >>> all > >>> content on it as well in which case a reload for the grid/chart on > >>> panel(b) > >>> won't work? > >>> > >>> > >>> Regards, > >>> Manfred > >>> > >>> > >>> > >>> > >>> Sebastien wrote > >>> > Hi Manfred, > >>> > > >>> > Sorry, my previous answer was incomplete. > >>> > Kendo components do usually have two methods for ajax, #reload and > >>> > #refresh. > >>> > Reload aims to reload the component (ie reattach to the dom) while > >>> refresh > >>> > aim to refresh the data only. > >>> > IIRC, grid and chart are different in the sense that grid does have > >>> its > >>> > datasource aware of the request cycle so it is safe to > reattach/reload > >>> the > >>> > component, the datasource will be destroyed from the dom. That's > >>> > unfortunately not the case of the chart (you can open an issue, I can > >>> try > >>> > to figure out if it's achievable). > >>> > One nice way to refresh the data without having the reload/reattach > >>> the > >>> > component is to use the event bus. Your master page/component will > >>> > send/broadcast a RefreshEvent or RefreshChatEvent that will be > catched > >>> by > >>> > the component hosting the chart (or the chart itself if you have > >>> overriden > >>> > it). Then just call refesh... > >>> > > >>> > Thanks and best regards, > >>> > Sebastien > >>> > > >>> > > >>> > On Mon, Sep 9, 2019, 23:29 Manfred Bergmann < > >>> > >>> > mb@ > >>> > >>> > > wrote: > >>> > > >>> >> Hi Sebastian. > >>> >> > >>> >> OK, but I don't really see how reusing instances of a Kendo Grid > >>> really > >>> >> works in a component based design where the parents of where the > >>> Grids > >>> >> are > >>> >> placed are replaced on the page. > >>> >> > >>> >> In particular we have a three panes border layout, kind of a > >>> >> 'master-detail' > >>> >> plus a tree on the left side. > >>> >> The right most pane is the 'detail' pane where panels are replaced > >>> >> depending > >>> >> on selection on the 'master' pane. Those panels can contain Kendo > >>> Grid > >>> >> but > >>> >> some do not. So I have no other chance of creating new instances of > >>> Kendo > >>> >> Grids (DataTable). > >>> >> So switching through the 'master' selections creates new Kendo > Grids, > >>> or > >>> >> Charts adding up datasources on the DOM root. > >>> >> > >>> >> I don't see how just using Chart/DataTable#refresh really should > >>> work? > >>> >> > >>> >> > >>> >> Manfred > >>> >> > >>> >> > >>> >> > >>> >> Sebastien wrote > >>> >> > Hi Manfred, > >>> >> > > >>> >> > The recommended way to refresh kendo ui components - those bound > to > >>> a > >>> >> > datasource - is to read from the datasource. > >>> >> > > >>> >> > See Chart#refresh, it should solve the problem. > >>> >> > > >>> >> > Thanks and best regards, > >>> >> > Sébastien > >>> >> > >>> >> > >>> >> > >>> >> -- > >>> >> Sent from: > >>> >> > http://apache-wicket.1842946.n
Re: Wicket Kendo UI - Grid/Chart datasources not cleaned up
OK, maybe it's better to follow up on this while it hot. I'm not entirely certain what to do and where. I'd assume that when a user clicks elsewhere, which raises an AjaxRequestTarget I'll have to add a functionality to destroy the chart/grid as part of the AjaxRequestTarget. But since the click can be anywhere, should this listener be part of the Grid/Chart component? Can you briefly guide me on what to do? Manfred Manfred Bergmann wrote > Hi Martin. > > OK, thanks. That looks like a doable solution. > I'd go for the Listener but I'll probably have to ask some more when I'm > going to implement it. > > > Manfred > > > > Martin Grigorov-4 wrote >> Hi Manfred, >> >> The #refresh(PartialPageUpdateHandler) methods are useful if you update >> the >> specific component. >> They do not help if you repaint a parent of such a component. >> In your case you will need to destroy the component (grid, chart) in your >> action callback (e.g. onUpdate(), onClick()). >> You can do this in your code or with AjaxRequestTarget.Listener. If you >> do >> the Listener then you can donate it to Wicket JQuery UI project. >> >> On Tue, Sep 10, 2019 at 10:52 AM Manfred Bergmann < > >> mb@ > >> > >> wrote: >> >>> Hi Sebastian. >>> >>> Thanks for the additional explanation. >>> But I'm not fully sure for how this is supposed to work in my case given >>> this structure/hierarchy: >>> page -> panel(a) -> panel(b) -> grid/chart >>> >>> Where panel (a) is replaced. Any instance of panel (b) can have a >>> grid/chart >>> but it can also host something else (depends on what is being >>> displayed). >>> I understand that when panel (a) is replaced it is garbage collected and >>> all >>> content on it as well in which case a reload for the grid/chart on >>> panel(b) >>> won't work? >>> >>> >>> Regards, >>> Manfred >>> >>> >>> >>> >>> Sebastien wrote >>> > Hi Manfred, >>> > >>> > Sorry, my previous answer was incomplete. >>> > Kendo components do usually have two methods for ajax, #reload and >>> > #refresh. >>> > Reload aims to reload the component (ie reattach to the dom) while >>> refresh >>> > aim to refresh the data only. >>> > IIRC, grid and chart are different in the sense that grid does have >>> its >>> > datasource aware of the request cycle so it is safe to reattach/reload >>> the >>> > component, the datasource will be destroyed from the dom. That's >>> > unfortunately not the case of the chart (you can open an issue, I can >>> try >>> > to figure out if it's achievable). >>> > One nice way to refresh the data without having the reload/reattach >>> the >>> > component is to use the event bus. Your master page/component will >>> > send/broadcast a RefreshEvent or RefreshChatEvent that will be catched >>> by >>> > the component hosting the chart (or the chart itself if you have >>> overriden >>> > it). Then just call refesh... >>> > >>> > Thanks and best regards, >>> > Sebastien >>> > >>> > >>> > On Mon, Sep 9, 2019, 23:29 Manfred Bergmann < >>> >>> > mb@ >>> >>> > > wrote: >>> > >>> >> Hi Sebastian. >>> >> >>> >> OK, but I don't really see how reusing instances of a Kendo Grid >>> really >>> >> works in a component based design where the parents of where the >>> Grids >>> >> are >>> >> placed are replaced on the page. >>> >> >>> >> In particular we have a three panes border layout, kind of a >>> >> 'master-detail' >>> >> plus a tree on the left side. >>> >> The right most pane is the 'detail' pane where panels are replaced >>> >> depending >>> >> on selection on the 'master' pane. Those panels can contain Kendo >>> Grid >>> >> but >>> >> some do not. So I have no other chance of creating new instances of >>> Kendo >>> >> Grids (DataTable). >>> >> So switching through the 'master' selections creates new Kendo Grids, >>> or >>> >> Charts adding up datasources on the DOM root. >>> >> >>> >> I don't see how just using Chart/DataTable#refresh really should >>> work? >>> >> >>> >> >>> >> Manfred >>> >> >>> >> >>> >> >>> >> Sebastien wrote >>> >> > Hi Manfred, >>> >> > >>> >> > The recommended way to refresh kendo ui components - those bound to >>> a >>> >> > datasource - is to read from the datasource. >>> >> > >>> >> > See Chart#refresh, it should solve the problem. >>> >> > >>> >> > Thanks and best regards, >>> >> > Sébastien >>> >> >>> >> >>> >> >>> >> -- >>> >> Sent from: >>> >> http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html >>> >> >>> >> - >>> >> To unsubscribe, e-mail: >>> >>> > users-unsubscribe@.apache >>> >>> >> For additional commands, e-mail: >>> >>> > users-help@.apache >>> >>> >> >>> >> >>> >>> >>> >>> -- >>> Sent from: >>> http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html >>> >>> - >>> To unsubscribe, e-mail: > >> users-unsubscribe@.apache > >>> For additional commands, e-mail: > >> users-help@.apache > >>> >>> > > > > -- >
Re: Wicket Kendo UI - Grid/Chart datasources not cleaned up
Hi Martin. OK, thanks. That looks like a doable solution. I'd go for the Listener but I'll probably have to ask some more when I'm going to implement it. Manfred Martin Grigorov-4 wrote > Hi Manfred, > > The #refresh(PartialPageUpdateHandler) methods are useful if you update > the > specific component. > They do not help if you repaint a parent of such a component. > In your case you will need to destroy the component (grid, chart) in your > action callback (e.g. onUpdate(), onClick()). > You can do this in your code or with AjaxRequestTarget.Listener. If you do > the Listener then you can donate it to Wicket JQuery UI project. > > On Tue, Sep 10, 2019 at 10:52 AM Manfred Bergmann < > mb@ > > > wrote: > >> Hi Sebastian. >> >> Thanks for the additional explanation. >> But I'm not fully sure for how this is supposed to work in my case given >> this structure/hierarchy: >> page -> panel(a) -> panel(b) -> grid/chart >> >> Where panel (a) is replaced. Any instance of panel (b) can have a >> grid/chart >> but it can also host something else (depends on what is being displayed). >> I understand that when panel (a) is replaced it is garbage collected and >> all >> content on it as well in which case a reload for the grid/chart on >> panel(b) >> won't work? >> >> >> Regards, >> Manfred >> >> >> >> >> Sebastien wrote >> > Hi Manfred, >> > >> > Sorry, my previous answer was incomplete. >> > Kendo components do usually have two methods for ajax, #reload and >> > #refresh. >> > Reload aims to reload the component (ie reattach to the dom) while >> refresh >> > aim to refresh the data only. >> > IIRC, grid and chart are different in the sense that grid does have its >> > datasource aware of the request cycle so it is safe to reattach/reload >> the >> > component, the datasource will be destroyed from the dom. That's >> > unfortunately not the case of the chart (you can open an issue, I can >> try >> > to figure out if it's achievable). >> > One nice way to refresh the data without having the reload/reattach the >> > component is to use the event bus. Your master page/component will >> > send/broadcast a RefreshEvent or RefreshChatEvent that will be catched >> by >> > the component hosting the chart (or the chart itself if you have >> overriden >> > it). Then just call refesh... >> > >> > Thanks and best regards, >> > Sebastien >> > >> > >> > On Mon, Sep 9, 2019, 23:29 Manfred Bergmann < >> >> > mb@ >> >> > > wrote: >> > >> >> Hi Sebastian. >> >> >> >> OK, but I don't really see how reusing instances of a Kendo Grid >> really >> >> works in a component based design where the parents of where the Grids >> >> are >> >> placed are replaced on the page. >> >> >> >> In particular we have a three panes border layout, kind of a >> >> 'master-detail' >> >> plus a tree on the left side. >> >> The right most pane is the 'detail' pane where panels are replaced >> >> depending >> >> on selection on the 'master' pane. Those panels can contain Kendo Grid >> >> but >> >> some do not. So I have no other chance of creating new instances of >> Kendo >> >> Grids (DataTable). >> >> So switching through the 'master' selections creates new Kendo Grids, >> or >> >> Charts adding up datasources on the DOM root. >> >> >> >> I don't see how just using Chart/DataTable#refresh really should work? >> >> >> >> >> >> Manfred >> >> >> >> >> >> >> >> Sebastien wrote >> >> > Hi Manfred, >> >> > >> >> > The recommended way to refresh kendo ui components - those bound to >> a >> >> > datasource - is to read from the datasource. >> >> > >> >> > See Chart#refresh, it should solve the problem. >> >> > >> >> > Thanks and best regards, >> >> > Sébastien >> >> >> >> >> >> >> >> -- >> >> Sent from: >> >> http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html >> >> >> >> - >> >> To unsubscribe, e-mail: >> >> > users-unsubscribe@.apache >> >> >> For additional commands, e-mail: >> >> > users-help@.apache >> >> >> >> >> >> >> >> >> -- >> Sent from: >> http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html >> >> - >> To unsubscribe, e-mail: > users-unsubscribe@.apache >> For additional commands, e-mail: > users-help@.apache >> >> -- Sent from: http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket Kendo UI - Grid/Chart datasources not cleaned up
Hi Manfred, The #refresh(PartialPageUpdateHandler) methods are useful if you update the specific component. They do not help if you repaint a parent of such a component. In your case you will need to destroy the component (grid, chart) in your action callback (e.g. onUpdate(), onClick()). You can do this in your code or with AjaxRequestTarget.Listener. If you do the Listener then you can donate it to Wicket JQuery UI project. On Tue, Sep 10, 2019 at 10:52 AM Manfred Bergmann wrote: > Hi Sebastian. > > Thanks for the additional explanation. > But I'm not fully sure for how this is supposed to work in my case given > this structure/hierarchy: > page -> panel(a) -> panel(b) -> grid/chart > > Where panel (a) is replaced. Any instance of panel (b) can have a > grid/chart > but it can also host something else (depends on what is being displayed). > I understand that when panel (a) is replaced it is garbage collected and > all > content on it as well in which case a reload for the grid/chart on panel(b) > won't work? > > > Regards, > Manfred > > > > > Sebastien wrote > > Hi Manfred, > > > > Sorry, my previous answer was incomplete. > > Kendo components do usually have two methods for ajax, #reload and > > #refresh. > > Reload aims to reload the component (ie reattach to the dom) while > refresh > > aim to refresh the data only. > > IIRC, grid and chart are different in the sense that grid does have its > > datasource aware of the request cycle so it is safe to reattach/reload > the > > component, the datasource will be destroyed from the dom. That's > > unfortunately not the case of the chart (you can open an issue, I can try > > to figure out if it's achievable). > > One nice way to refresh the data without having the reload/reattach the > > component is to use the event bus. Your master page/component will > > send/broadcast a RefreshEvent or RefreshChatEvent that will be catched by > > the component hosting the chart (or the chart itself if you have > overriden > > it). Then just call refesh... > > > > Thanks and best regards, > > Sebastien > > > > > > On Mon, Sep 9, 2019, 23:29 Manfred Bergmann < > > > mb@ > > > > wrote: > > > >> Hi Sebastian. > >> > >> OK, but I don't really see how reusing instances of a Kendo Grid really > >> works in a component based design where the parents of where the Grids > >> are > >> placed are replaced on the page. > >> > >> In particular we have a three panes border layout, kind of a > >> 'master-detail' > >> plus a tree on the left side. > >> The right most pane is the 'detail' pane where panels are replaced > >> depending > >> on selection on the 'master' pane. Those panels can contain Kendo Grid > >> but > >> some do not. So I have no other chance of creating new instances of > Kendo > >> Grids (DataTable). > >> So switching through the 'master' selections creates new Kendo Grids, or > >> Charts adding up datasources on the DOM root. > >> > >> I don't see how just using Chart/DataTable#refresh really should work? > >> > >> > >> Manfred > >> > >> > >> > >> Sebastien wrote > >> > Hi Manfred, > >> > > >> > The recommended way to refresh kendo ui components - those bound to a > >> > datasource - is to read from the datasource. > >> > > >> > See Chart#refresh, it should solve the problem. > >> > > >> > Thanks and best regards, > >> > Sébastien > >> > >> > >> > >> -- > >> Sent from: > >> http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html > >> > >> - > >> To unsubscribe, e-mail: > > > users-unsubscribe@.apache > > >> For additional commands, e-mail: > > > users-help@.apache > > >> > >> > > > > -- > Sent from: > http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html > > - > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > >
Re: Wicket Kendo UI - Grid/Chart datasources not cleaned up
Hi Sebastian. Thanks for the additional explanation. But I'm not fully sure for how this is supposed to work in my case given this structure/hierarchy: page -> panel(a) -> panel(b) -> grid/chart Where panel (a) is replaced. Any instance of panel (b) can have a grid/chart but it can also host something else (depends on what is being displayed). I understand that when panel (a) is replaced it is garbage collected and all content on it as well in which case a reload for the grid/chart on panel(b) won't work? Regards, Manfred Sebastien wrote > Hi Manfred, > > Sorry, my previous answer was incomplete. > Kendo components do usually have two methods for ajax, #reload and > #refresh. > Reload aims to reload the component (ie reattach to the dom) while refresh > aim to refresh the data only. > IIRC, grid and chart are different in the sense that grid does have its > datasource aware of the request cycle so it is safe to reattach/reload the > component, the datasource will be destroyed from the dom. That's > unfortunately not the case of the chart (you can open an issue, I can try > to figure out if it's achievable). > One nice way to refresh the data without having the reload/reattach the > component is to use the event bus. Your master page/component will > send/broadcast a RefreshEvent or RefreshChatEvent that will be catched by > the component hosting the chart (or the chart itself if you have overriden > it). Then just call refesh... > > Thanks and best regards, > Sebastien > > > On Mon, Sep 9, 2019, 23:29 Manfred Bergmann < > mb@ > > wrote: > >> Hi Sebastian. >> >> OK, but I don't really see how reusing instances of a Kendo Grid really >> works in a component based design where the parents of where the Grids >> are >> placed are replaced on the page. >> >> In particular we have a three panes border layout, kind of a >> 'master-detail' >> plus a tree on the left side. >> The right most pane is the 'detail' pane where panels are replaced >> depending >> on selection on the 'master' pane. Those panels can contain Kendo Grid >> but >> some do not. So I have no other chance of creating new instances of Kendo >> Grids (DataTable). >> So switching through the 'master' selections creates new Kendo Grids, or >> Charts adding up datasources on the DOM root. >> >> I don't see how just using Chart/DataTable#refresh really should work? >> >> >> Manfred >> >> >> >> Sebastien wrote >> > Hi Manfred, >> > >> > The recommended way to refresh kendo ui components - those bound to a >> > datasource - is to read from the datasource. >> > >> > See Chart#refresh, it should solve the problem. >> > >> > Thanks and best regards, >> > Sébastien >> >> >> >> -- >> Sent from: >> http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html >> >> - >> To unsubscribe, e-mail: > users-unsubscribe@.apache >> For additional commands, e-mail: > users-help@.apache >> >> -- Sent from: http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket Kendo UI - Grid/Chart datasources not cleaned up
Hi Manfred, Sorry, my previous answer was incomplete. Kendo components do usually have two methods for ajax, #reload and #refresh. Reload aims to reload the component (ie reattach to the dom) while refresh aim to refresh the data only. IIRC, grid and chart are different in the sense that grid does have its datasource aware of the request cycle so it is safe to reattach/reload the component, the datasource will be destroyed from the dom. That's unfortunately not the case of the chart (you can open an issue, I can try to figure out if it's achievable). One nice way to refresh the data without having the reload/reattach the component is to use the event bus. Your master page/component will send/broadcast a RefreshEvent or RefreshChatEvent that will be catched by the component hosting the chart (or the chart itself if you have overriden it). Then just call refesh... Thanks and best regards, Sebastien On Mon, Sep 9, 2019, 23:29 Manfred Bergmann wrote: > Hi Sebastian. > > OK, but I don't really see how reusing instances of a Kendo Grid really > works in a component based design where the parents of where the Grids are > placed are replaced on the page. > > In particular we have a three panes border layout, kind of a > 'master-detail' > plus a tree on the left side. > The right most pane is the 'detail' pane where panels are replaced > depending > on selection on the 'master' pane. Those panels can contain Kendo Grid but > some do not. So I have no other chance of creating new instances of Kendo > Grids (DataTable). > So switching through the 'master' selections creates new Kendo Grids, or > Charts adding up datasources on the DOM root. > > I don't see how just using Chart/DataTable#refresh really should work? > > > Manfred > > > > Sebastien wrote > > Hi Manfred, > > > > The recommended way to refresh kendo ui components - those bound to a > > datasource - is to read from the datasource. > > > > See Chart#refresh, it should solve the problem. > > > > Thanks and best regards, > > Sébastien > > > > -- > Sent from: > http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html > > - > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > >
Re: Wicket Kendo UI - Grid/Chart datasources not cleaned up
Hi Sebastian. OK, but I don't really see how reusing instances of a Kendo Grid really works in a component based design where the parents of where the Grids are placed are replaced on the page. In particular we have a three panes border layout, kind of a 'master-detail' plus a tree on the left side. The right most pane is the 'detail' pane where panels are replaced depending on selection on the 'master' pane. Those panels can contain Kendo Grid but some do not. So I have no other chance of creating new instances of Kendo Grids (DataTable). So switching through the 'master' selections creates new Kendo Grids, or Charts adding up datasources on the DOM root. I don't see how just using Chart/DataTable#refresh really should work? Manfred Sebastien wrote > Hi Manfred, > > The recommended way to refresh kendo ui components - those bound to a > datasource - is to read from the datasource. > > See Chart#refresh, it should solve the problem. > > Thanks and best regards, > Sébastien -- Sent from: http://apache-wicket.1842946.n4.nabble.com/Users-forum-f1842947.html - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Wicket Kendo UI - Grid/Chart datasources not cleaned up
Hi Manfred, The recommended way to refresh kendo ui components - those bound to a datasource - is to read from the datasource. See Chart#refresh, it should solve the problem. Thanks and best regards, Sébastien
