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Hello,
I wrote a SL application that loads huge data from WCF and display it in a gridview... keeping things simple I've got a main menu with 3 items (0 parameters,1 parameters, 2 parameters) and it shows up some data based on some criteria... On the click of a menu item I do a
gvContent.Items.Clear()
but if the user has just loaded the data from another menu item's content, IE/FFox won't free the ~150MB of ram allocated for the gridview.... need I to implement an IDisposable inside the gvContent's usercontrol? how I remove the items of the Gridview?
Thanks in advance
p.s. another question.... when I detach an event doing:
what happens to the 2 EventHandler created? when are they disposed ??(I've always asked myself)
Thanks
Paolo
I wrote a SL application that loads huge data from WCF and display it in a gridview... keeping things simple I've got a main menu with 3 items (0 parameters,1 parameters, 2 parameters) and it shows up some data based on some criteria... On the click of a menu item I do a
gvContent.Items.Clear()
but if the user has just loaded the data from another menu item's content, IE/FFox won't free the ~150MB of ram allocated for the gridview.... need I to implement an IDisposable inside the gvContent's usercontrol? how I remove the items of the Gridview?
Thanks in advance
p.s. another question.... when I detach an event doing:
| m_clientUtility.GetStoreProcedureFromTipoCompleted -= new EventHandler<GetStoreProcedureFromTipoCompletedEventArgs>(m_clientUtility_GetStoreProcedureFromTipoCompleted); |
| m_clientUtility.ExecuteStoreProcedureCompleted -= new EventHandler<ExecuteStoreProcedureCompletedEventArgs>(m_clientUtility_ExecuteStoreProcedureCompleted); |
what happens to the 2 EventHandler created? when are they disposed ??(I've always asked myself)
Thanks
Paolo
4 Answers, 1 is accepted
0
Hello Paolo,
Regarding your first question . In general you will not need to do anything additional in order to free memory ( such as implementing IDisposable) . As usually the framework will keep an object in memory as long as there is a reference to it.
So the next question would be - does RadGridView keep reference to the previous items or something else prevents the GC to flush the memory.
This can easily be checked - e.g. try a regular List box instead of the RadGridView . If the problem disappears this would mean that RadGridView is to blame for the memory leak.
In such case please let us know and we will address this immediately.
Regarding your second question :
Event handler is delegate - in other words just something that points to another object's method.
The important thing which happens when you use " -=" to detach an event handler is that you break the reference between the two objects - the one raising the event and the one listening for the event.
Finally when an object remains unreferenced by other objects it can get collected by the GC.
Anyway, again if you suspect any memory-related problems in your application are caused
by RadGridView or other controls from our suite - please let us know. ( with some details how to reproduce if possible ) . Such issues are always addressed with high priority.
Regards,
Pavel Pavlov
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.
Regarding your first question . In general you will not need to do anything additional in order to free memory ( such as implementing IDisposable) . As usually the framework will keep an object in memory as long as there is a reference to it.
So the next question would be - does RadGridView keep reference to the previous items or something else prevents the GC to flush the memory.
This can easily be checked - e.g. try a regular List box instead of the RadGridView . If the problem disappears this would mean that RadGridView is to blame for the memory leak.
In such case please let us know and we will address this immediately.
Regarding your second question :
Event handler is delegate - in other words just something that points to another object's method.
The important thing which happens when you use " -=" to detach an event handler is that you break the reference between the two objects - the one raising the event and the one listening for the event.
Finally when an object remains unreferenced by other objects it can get collected by the GC.
Anyway, again if you suspect any memory-related problems in your application are caused
by RadGridView or other controls from our suite - please let us know. ( with some details how to reproduce if possible ) . Such issues are always addressed with high priority.
Regards,
Pavel Pavlov
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.
0
Michele
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Rank 2
answered on 23 Feb 2010, 10:03 AM
Hello Pavel,
I've checked.... I got the same problem with the ListBox... it's really strange...when I load the UC dinamically it tooks 4mb (not loading any telerik component) then cleaning everything I free 500kb...
I've checked.... I got the same problem with the ListBox... it's really strange...when I load the UC dinamically it tooks 4mb (not loading any telerik component) then cleaning everything I free 500kb...
0
Michele
Top achievements
Rank 2
Rank 2
answered on 23 Feb 2010, 11:05 AM
Hello Pavel,
sorry to disturb you again... I thinks I've found something usefull.. I've found a post about finding memory leak by a colleage of yours... I've used windbg and after having done the switch between the usecontrol and cleared it I figured this :
I've done a !dumpheap -stat -Type Telerik and omitting the small ones... I got
0ac18cb4 7 336 System.Collections.Generic.Dictionary`2[[System.String, mscorlib],[Telerik.Windows.Controls.Animation.RadAnimation, Telerik.Windows.Controls]]
0ba51a38 1 344 Telerik.Windows.Controls.RadGridView
0ac15a90 22 352 Telerik.Windows.ClassHandlersStore
0ac15694 23 368 Telerik.Windows.RoutedEventHandlerInfoList
0b53d08c 3 420 Telerik.Windows.RouteItem[]
0ac19920 7 420 System.Collections.Generic.Dictionary`2+Entry[[System.String, mscorlib],[Telerik.Windows.Controls.Animation.RadAnimation, Telerik.Windows.Controls]][]
0ac1745c 20 480 System.Collections.Generic.List`1[[Telerik.Windows.RoutedEventHandlerInfo, Telerik.Windows.Controls]]
0ac12690 4 496 Telerik.Windows.Controls.RadMenuItem
0ac1d4dc 1 604 System.Collections.Generic.Dictionary`2+Entry[[Telerik.Windows.DependencyObjectType, Telerik.Windows.Controls],[System.Object, mscorlib]][]
0ac187dc 1 604 System.Collections.Generic.Dictionary`2+Entry[[System.Windows.DependencyProperty, System.Windows],[Telerik.Windows.CoerceValueCallback, Telerik.Windows.Controls]][]
0ac1a238 41 656 Telerik.Windows.Controls.Office_BlackTheme
0ac13fc8 29 696 System.Collections.Generic.List`1[[Telerik.Windows.RoutedEvent, Telerik.Windows.Controls]]
0ac15f44 69 828 Telerik.Windows.DependencyPropertyKey
0ac153f4 34 1088 Telerik.Windows.CoerceValueCallback
0ac13b54 56 1120 Telerik.Windows.DependencyObjectType
0ac15c60 44 1352 Telerik.Windows.RoutedEventHandlerInfo[]
0ac14a5c 1 1436 System.Collections.Generic.Dictionary`2+Entry[[System.Type, mscorlib],[Telerik.Windows.DependencyObjectType, Telerik.Windows.Controls]][]
0ac15828 22 1812 Telerik.Windows.ClassHandlers[]
0ac132e8 115 3220 Telerik.Windows.RoutedEvent
0ac1559c 530 10600 Telerik.Windows.PropertyMetadata+<>c__DisplayClass1
I've done a !dumpheap -MT 0ac1559c
and got :
doing a !gcroot
As far as I've seen this can a memory leak.... can you confirm? Consider that I've not loaded any item from the GridView, just loaded it and then done a clear...
My XAML file is :
Hope this helps... Thanks
sorry to disturb you again... I thinks I've found something usefull.. I've found a post about finding memory leak by a colleage of yours... I've used windbg and after having done the switch between the usecontrol and cleared it I figured this :
I've done a !dumpheap -stat -Type Telerik and omitting the small ones... I got
0ac18cb4 7 336 System.Collections.Generic.Dictionary`2[[System.String, mscorlib],[Telerik.Windows.Controls.Animation.RadAnimation, Telerik.Windows.Controls]]
0ba51a38 1 344 Telerik.Windows.Controls.RadGridView
0ac15a90 22 352 Telerik.Windows.ClassHandlersStore
0ac15694 23 368 Telerik.Windows.RoutedEventHandlerInfoList
0b53d08c 3 420 Telerik.Windows.RouteItem[]
0ac19920 7 420 System.Collections.Generic.Dictionary`2+Entry[[System.String, mscorlib],[Telerik.Windows.Controls.Animation.RadAnimation, Telerik.Windows.Controls]][]
0ac1745c 20 480 System.Collections.Generic.List`1[[Telerik.Windows.RoutedEventHandlerInfo, Telerik.Windows.Controls]]
0ac12690 4 496 Telerik.Windows.Controls.RadMenuItem
0ac1d4dc 1 604 System.Collections.Generic.Dictionary`2+Entry[[Telerik.Windows.DependencyObjectType, Telerik.Windows.Controls],[System.Object, mscorlib]][]
0ac187dc 1 604 System.Collections.Generic.Dictionary`2+Entry[[System.Windows.DependencyProperty, System.Windows],[Telerik.Windows.CoerceValueCallback, Telerik.Windows.Controls]][]
0ac1a238 41 656 Telerik.Windows.Controls.Office_BlackTheme
0ac13fc8 29 696 System.Collections.Generic.List`1[[Telerik.Windows.RoutedEvent, Telerik.Windows.Controls]]
0ac15f44 69 828 Telerik.Windows.DependencyPropertyKey
0ac153f4 34 1088 Telerik.Windows.CoerceValueCallback
0ac13b54 56 1120 Telerik.Windows.DependencyObjectType
0ac15c60 44 1352 Telerik.Windows.RoutedEventHandlerInfo[]
0ac14a5c 1 1436 System.Collections.Generic.Dictionary`2+Entry[[System.Type, mscorlib],[Telerik.Windows.DependencyObjectType, Telerik.Windows.Controls]][]
0ac15828 22 1812 Telerik.Windows.ClassHandlers[]
0ac132e8 115 3220 Telerik.Windows.RoutedEvent
0ac1559c 530 10600 Telerik.Windows.PropertyMetadata+<>c__DisplayClass1
I've done a !dumpheap -MT 0ac1559c
and got :
| 0:031> !dumpheap -MT 0ac1559c |
| Address MT Size |
| 076f70a8 0ac1559c 20 |
| 076f7590 0ac1559c 20 |
| 076f7658 0ac1559c 20 |
| 076f76dc 0ac1559c 20 |
| 076f7760 0ac1559c 20 |
| 076f77f8 0ac1559c 20 |
| 076f787c 0ac1559c 20 |
| 076f7900 0ac1559c 20 |
| 076f7984 0ac1559c 20 |
| 076f7afc 0ac1559c 20 |
| 076f7d5c 0ac1559c 20 |
| 076f7e74 0ac1559c 20 |
| 076f7f10 0ac1559c 20 |
| 076f7fac 0ac1559c 20 |
| 076f852c 0ac1559c 20 |
| 076f8608 0ac1559c 20 |
| 076f873c 0ac1559c 20 |
| 076f8b54 0ac1559c 20 |
| 076f9688 0ac1559c 20 |
| 076f976c 0ac1559c 20 |
| 076f97f0 0ac1559c 20 |
| 076f9904 0ac1559c 20 |
| 076fe478 0ac1559c 20 |
| 076fe568 0ac1559c 20 |
| 076fe5fc 0ac1559c 20 |
| 076fe690 0ac1559c 20 |
| 076fe79c 0ac1559c 20 |
| 076feabc 0ac1559c 20 |
| 076ff018 0ac1559c 20 |
| 076ff0b8 0ac1559c 20 |
| 077025ec 0ac1559c 20 |
| 07702970 0ac1559c 20 |
| 07702aa4 0ac1559c 20 |
| 07702bcc 0ac1559c 20 |
| 07703830 0ac1559c 20 |
| 077038f0 0ac1559c 20 |
| 0770399c 0ac1559c 20 |
| 07703abc 0ac1559c 20 |
| 0770691c 0ac1559c 20 |
| 07706a10 0ac1559c 20 |
| 07706b70 0ac1559c 20 |
| 077074c0 0ac1559c 20 |
| 07707550 0ac1559c 20 |
| 07707610 0ac1559c 20 |
| 07707694 0ac1559c 20 |
| 07707718 0ac1559c 20 |
| 077077a8 0ac1559c 20 |
| 07707888 0ac1559c 20 |
| 07707918 0ac1559c 20 |
| 0770799c 0ac1559c 20 |
| 07707a2c 0ac1559c 20 |
| 07707ab0 0ac1559c 20 |
| 07707b50 0ac1559c 20 |
| 07707bc0 0ac1559c 20 |
| 077080b0 0ac1559c 20 |
| 07708134 0ac1559c 20 |
| 077081b8 0ac1559c 20 |
| 07709b10 0ac1559c 20 |
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| 0770a114 0ac1559c 20 |
| 0770a1b0 0ac1559c 20 |
| 0770bc4c 0ac1559c 20 |
| 0770bd50 0ac1559c 20 |
| 0770be60 0ac1559c 20 |
| 0770bef8 0ac1559c 20 |
| 0770bffc 0ac1559c 20 |
| 0770c090 0ac1559c 20 |
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| 0770c188 0ac1559c 20 |
| 0770c2f8 0ac1559c 20 |
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| 0770c834 0ac1559c 20 |
| 0770c8d0 0ac1559c 20 |
| 0770c96c 0ac1559c 20 |
| 0770d538 0ac1559c 20 |
| 0770d668 0ac1559c 20 |
| 0770e050 0ac1559c 20 |
| 0770e104 0ac1559c 20 |
| 0770e298 0ac1559c 20 |
| 0770e314 0ac1559c 20 |
| 0770fca4 0ac1559c 20 |
| 077113c4 0ac1559c 20 |
| 07711498 0ac1559c 20 |
| 0771151c 0ac1559c 20 |
| 077115d8 0ac1559c 20 |
| 07711720 0ac1559c 20 |
| 077119a8 0ac1559c 20 |
| 07711a2c 0ac1559c 20 |
| 07711acc 0ac1559c 20 |
| 07711bac 0ac1559c 20 |
| 07711c94 0ac1559c 20 |
| 07711d04 0ac1559c 20 |
| 07711d74 0ac1559c 20 |
| 07711e70 0ac1559c 20 |
| 07711f00 0ac1559c 20 |
| 07711f90 0ac1559c 20 |
| 07712020 0ac1559c 20 |
| 07712398 0ac1559c 20 |
| 07712460 0ac1559c 20 |
| 077124d0 0ac1559c 20 |
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| 07712668 0ac1559c 20 |
| 07712700 0ac1559c 20 |
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| 07713a80 0ac1559c 20 |
| 07713afc 0ac1559c 20 |
| 07713b8c 0ac1559c 20 |
| 07713c50 0ac1559c 20 |
| 07713cd4 0ac1559c 20 |
| 07713ed0 0ac1559c 20 |
| 07713f60 0ac1559c 20 |
| 07713fe4 0ac1559c 20 |
| 07714068 0ac1559c 20 |
| 077140ec 0ac1559c 20 |
| 0771417c 0ac1559c 20 |
| 07714238 0ac1559c 20 |
| 077142bc 0ac1559c 20 |
| 07714754 0ac1559c 20 |
| 077147f4 0ac1559c 20 |
| 07714878 0ac1559c 20 |
| 077148ec 0ac1559c 20 |
| 07714b70 0ac1559c 20 |
| 0771841c 0ac1559c 20 |
| 077184dc 0ac1559c 20 |
| 07718580 0ac1559c 20 |
| 07718610 0ac1559c 20 |
| 07718724 0ac1559c 20 |
| 07718794 0ac1559c 20 |
| 0771aaa4 0ac1559c 20 |
| 0771b4a8 0ac1559c 20 |
| 0771bde4 0ac1559c 20 |
| 0771be68 0ac1559c 20 |
| 0771bf4c 0ac1559c 20 |
| 0771bfe4 0ac1559c 20 |
| 0771c074 0ac1559c 20 |
| 0771c104 0ac1559c 20 |
| 0771c174 0ac1559c 20 |
| 0771c2a4 0ac1559c 20 |
| 0771c344 0ac1559c 20 |
| 0771c3b4 0ac1559c 20 |
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| 0771c8d0 0ac1559c 20 |
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| 07722f1c 0ac1559c 20 |
| 07722fa0 0ac1559c 20 |
| 07723010 0ac1559c 20 |
| 07723538 0ac1559c 20 |
| 077235ec 0ac1559c 20 |
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| 07723a5c 0ac1559c 20 |
| 07723acc 0ac1559c 20 |
| 07724c68 0ac1559c 20 |
| 07724d2c 0ac1559c 20 |
| 07724dc0 0ac1559c 20 |
| 07724e54 0ac1559c 20 |
| 07724f90 0ac1559c 20 |
| 07725fc8 0ac1559c 20 |
| 07726114 0ac1559c 20 |
| 0772626c 0ac1559c 20 |
| 07726624 0ac1559c 20 |
| 077266b8 0ac1559c 20 |
| 07726cdc 0ac1559c 20 |
| 07726d88 0ac1559c 20 |
| 07726e00 0ac1559c 20 |
| 07726e84 0ac1559c 20 |
| 07727074 0ac1559c 20 |
| 07727548 0ac1559c 20 |
| 07727604 0ac1559c 20 |
| 07727674 0ac1559c 20 |
| 07727c60 0ac1559c 20 |
| 07727d68 0ac1559c 20 |
| 0774c304 0ac1559c 20 |
| 0774c40c 0ac1559c 20 |
| 0774c9a4 0ac1559c 20 |
| 0774cafc 0ac1559c 20 |
| 0774cbb0 0ac1559c 20 |
| 0774dad0 0ac1559c 20 |
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| 0774e370 0ac1559c 20 |
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| 0774ea70 0ac1559c 20 |
| 0774eb04 0ac1559c 20 |
| 07752804 0ac1559c 20 |
| 077539e8 0ac1559c 20 |
| 07753bfc 0ac1559c 20 |
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| 07758c70 0ac1559c 20 |
| 07758d00 0ac1559c 20 |
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| 0775a0c8 0ac1559c 20 |
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| 0775fea0 0ac1559c 20 |
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| 0775ffa8 0ac1559c 20 |
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| 0776cdc8 0ac1559c 20 |
| 0776ce68 0ac1559c 20 |
| 0776ceec 0ac1559c 20 |
| 0776cf70 0ac1559c 20 |
| 0776cff4 0ac1559c 20 |
| 0776d078 0ac1559c 20 |
| 0776d0fc 0ac1559c 20 |
| 0776d18c 0ac1559c 20 |
| 0776d21c 0ac1559c 20 |
| 0776d2c0 0ac1559c 20 |
| 0776d350 0ac1559c 20 |
| 0776d3e0 0ac1559c 20 |
| 0776d454 0ac1559c 20 |
| 0776d538 0ac1559c 20 |
| 0776d59c 0ac1559c 20 |
| 0776d6e8 0ac1559c 20 |
| 0776d7c8 0ac1559c 20 |
| 0776d84c 0ac1559c 20 |
| 0776d8d0 0ac1559c 20 |
| 0776d954 0ac1559c 20 |
| 0776da04 0ac1559c 20 |
| 0776db28 0ac1559c 20 |
| 0776dc50 0ac1559c 20 |
| 0776dce0 0ac1559c 20 |
| 0776dee4 0ac1559c 20 |
| 0776dfb8 0ac1559c 20 |
| 0776e03c 0ac1559c 20 |
| 0776e0c0 0ac1559c 20 |
| 0776e1d4 0ac1559c 20 |
| 0776e244 0ac1559c 20 |
| 0776e3a4 0ac1559c 20 |
| 0776e458 0ac1559c 20 |
| 0776e4fc 0ac1559c 20 |
| 0776e56c 0ac1559c 20 |
| 0776e7f4 0ac1559c 20 |
| 0776e8b4 0ac1559c 20 |
| 0776e938 0ac1559c 20 |
| 0776e9f4 0ac1559c 20 |
| 0776f314 0ac1559c 20 |
| 0776f640 0ac1559c 20 |
| 07779af4 0ac1559c 20 |
| 07779b64 0ac1559c 20 |
| 077879cc 0ac1559c 20 |
| 07787a80 0ac1559c 20 |
| 07787b40 0ac1559c 20 |
| 07787bb8 0ac1559c 20 |
| 07787c48 0ac1559c 20 |
| 07787cac 0ac1559c 20 |
| 07787d4c 0ac1559c 20 |
| 07788bf8 0ac1559c 20 |
| 07788d40 0ac1559c 20 |
| 07788f98 0ac1559c 20 |
| 07789064 0ac1559c 20 |
| 077890e0 0ac1559c 20 |
| 07789144 0ac1559c 20 |
| 077891b8 0ac1559c 20 |
| 07789248 0ac1559c 20 |
| 077892d8 0ac1559c 20 |
| 0778935c 0ac1559c 20 |
| 0778952c 0ac1559c 20 |
| 077895ac 0ac1559c 20 |
| 0778f750 0ac1559c 20 |
| 0778f804 0ac1559c 20 |
| 0778f888 0ac1559c 20 |
| 0778f90c 0ac1559c 20 |
| 0778fa60 0ac1559c 20 |
| 0778faf8 0ac1559c 20 |
| 07795fb0 0ac1559c 20 |
| 077960d4 0ac1559c 20 |
| 07796158 0ac1559c 20 |
| 07798b14 0ac1559c 20 |
| 07798bc8 0ac1559c 20 |
| 07798c4c 0ac1559c 20 |
| 07798cbc 0ac1559c 20 |
| 07798d50 0ac1559c 20 |
| 07798dc0 0ac1559c 20 |
| 07798e50 0ac1559c 20 |
| 07798ee0 0ac1559c 20 |
| 077990d0 0ac1559c 20 |
| 07799144 0ac1559c 20 |
| 077991b8 0ac1559c 20 |
| 0779922c 0ac1559c 20 |
| 077992a0 0ac1559c 20 |
| 07799330 0ac1559c 20 |
| 07799410 0ac1559c 20 |
| 077994b4 0ac1559c 20 |
| 0779f184 0ac1559c 20 |
| 0779f244 0ac1559c 20 |
| 0779f3c8 0ac1559c 20 |
| 0779f458 0ac1559c 20 |
| 0779f694 0ac1559c 20 |
| 0779f79c 0ac1559c 20 |
| 0779f818 0ac1559c 20 |
| 077a724c 0ac1559c 20 |
| 077b5f58 0ac1559c 20 |
| 077b600c 0ac1559c 20 |
| 077b6090 0ac1559c 20 |
| 077b6104 0ac1559c 20 |
| 077b6180 0ac1559c 20 |
| 077b61fc 0ac1559c 20 |
| 077b627c 0ac1559c 20 |
| 077b62fc 0ac1559c 20 |
| 077b637c 0ac1559c 20 |
| 077b63fc 0ac1559c 20 |
| 077b649c 0ac1559c 20 |
| 077b651c 0ac1559c 20 |
| 077b659c 0ac1559c 20 |
| 077b663c 0ac1559c 20 |
| 077b66bc 0ac1559c 20 |
| 077b6758 0ac1559c 20 |
| 077b67e8 0ac1559c 20 |
| 077b684c 0ac1559c 20 |
| 077b6bac 0ac1559c 20 |
| 077b6cdc 0ac1559c 20 |
| 077b74f0 0ac1559c 20 |
| 077b75e4 0ac1559c 20 |
| 077b7744 0ac1559c 20 |
| 077b7810 0ac1559c 20 |
| 077b788c 0ac1559c 20 |
| 077b78f0 0ac1559c 20 |
| 077b7a14 0ac1559c 20 |
| 077b7a84 0ac1559c 20 |
| 077b7b04 0ac1559c 20 |
| 077b81ac 0ac1559c 20 |
| 077b82a0 0ac1559c 20 |
| 077b8704 0ac1559c 20 |
| 077b9740 0ac1559c 20 |
| 077b97d0 0ac1559c 20 |
| 077b98bc 0ac1559c 20 |
| 077b9958 0ac1559c 20 |
| 077b99dc 0ac1559c 20 |
| 077b9a74 0ac1559c 20 |
| 077ba364 0ac1559c 20 |
| 077ba488 0ac1559c 20 |
| 077bae94 0ac1559c 20 |
| 077baf34 0ac1559c 20 |
| 077bafa4 0ac1559c 20 |
| 077bb1d0 0ac1559c 20 |
| 077bb320 0ac1559c 20 |
| 077c4dec 0ac1559c 20 |
| 077c5978 0ac1559c 20 |
| 077c6fb4 0ac1559c 20 |
| 077c70cc 0ac1559c 20 |
| 077c7130 0ac1559c 20 |
| 077c7e7c 0ac1559c 20 |
| 077c7f10 0ac1559c 20 |
| 077c7fb4 0ac1559c 20 |
| 077c8064 0ac1559c 20 |
| 077c8114 0ac1559c 20 |
| 077c81f8 0ac1559c 20 |
| 077c82b8 0ac1559c 20 |
| 077c8328 0ac1559c 20 |
| 077c8398 0ac1559c 20 |
| 077c8408 0ac1559c 20 |
| 077c8498 0ac1559c 20 |
| 077c8508 0ac1559c 20 |
| 077c8614 0ac1559c 20 |
| 077c86a4 0ac1559c 20 |
| 077c8734 0ac1559c 20 |
| 077c8ac0 0ac1559c 20 |
| 077c8b50 0ac1559c 20 |
| 077c8bd4 0ac1559c 20 |
| 077c8c58 0ac1559c 20 |
| 077c8cdc 0ac1559c 20 |
| 077c8d4c 0ac1559c 20 |
| 077c8ddc 0ac1559c 20 |
| 077c8e94 0ac1559c 20 |
| 077c8f24 0ac1559c 20 |
| 077c8ff0 0ac1559c 20 |
| 077c90c4 0ac1559c 20 |
| 077c9198 0ac1559c 20 |
| 077c922c 0ac1559c 20 |
| 077c92e8 0ac1559c 20 |
| 077c9860 0ac1559c 20 |
| 077c9978 0ac1559c 20 |
doing a !gcroot
| 0:031> !gcroot 077c9978 |
| Note: Roots found on stacks may be false positives. Run "!help gcroot" for |
| more info. |
| Scan Thread 8 OSTHread 13b0 |
| Scan Thread 24 OSTHread 124c |
| Scan Thread 25 OSTHread 12d4 |
| Scan Thread 28 OSTHread c94 |
| Scan Thread 29 OSTHread ea0 |
| DOMAIN(0598EDE8):HANDLE(Pinned):9b712f0:Root: 086e64a0(System.Object[])-> |
| 077c99ac(System.Windows.CustomDependencyProperty)-> |
| 077c998c(System.Windows.PropertyChangedCallback)-> |
| 077c9978(Telerik.Windows.PropertyMetadata+<>c__DisplayClass1)-> |
| DOMAIN(0598EDE8):HANDLE(Pinned):9b712f8:Root: 086e4260(System.Object[])-> |
| 076e84a8(System.Collections.Generic.List`1[[System.Windows.DependencyProperty, System.Windows]])-> |
| 0775c710(System.Object[])-> |
| 077c99ac(System.Windows.CustomDependencyProperty)-> |
| 077c998c(System.Windows.PropertyChangedCallback)-> |
| 077c9978(Telerik.Windows.PropertyMetadata+<>c__DisplayClass1)-> |
As far as I've seen this can a memory leak.... can you confirm? Consider that I've not loaded any item from the GridView, just loaded it and then done a clear...
My XAML file is :
| <IF:LayoutBase x:Class="IFWebLight.Utility.Dettagli.DataSingola" |
| xmlns:telerikGridView="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView" |
| xmlns:grid="clr-namespace:Telerik.Windows.Controls.GridView;assembly=Telerik.Windows.Controls.GridView" |
| xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" |
| xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" |
| xmlns:ms="clr-namespace:System.Windows.Controls;assembly=System.Windows" |
| xmlns:data="clr-namespace:Telerik.Windows.Data;assembly=Telerik.Windows.Data" |
| xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls" |
| xmlns:telerikInput="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Input" |
| xmlns:IF="clr-namespace:IFWebLight.Utility.Dettagli" |
| > |
| <Grid x:Name="LayoutRoot" Loaded="LayoutRoot_Loaded" SizeChanged="LayoutRoot_SizeChanged"> |
| <Grid.RowDefinitions> |
| <RowDefinition Height="25"></RowDefinition> |
| <RowDefinition ></RowDefinition> |
| </Grid.RowDefinitions> |
| <StackPanel Grid.Row="0" Orientation="Horizontal" x:Name="spMain"> |
| <TextBlock Text="Selezionare Vista" VerticalAlignment="Center" ></TextBlock> |
| <ComboBox x:Name="cbStore" Margin="5,0,0,0" DisplayMemberPath="Descrizione" MinWidth="120"></ComboBox> |
| <TextBlock Text="Data Inizio" Width="70" VerticalAlignment="Center" HorizontalAlignment="Left" Margin="5,0,0,0" ></TextBlock> |
| <telerikInput:RadDatePicker MinWidth="120" x:Name="dpDataInizio" IsTodayHighlighted="True" Height="22" IsEnabled="False" Margin="5,0,0,0"></telerikInput:RadDatePicker> |
| <Button x:Name="btnCarica" Margin="5,0,0,0" Content="Carica" Click="Carica_Click"></Button> |
| <Button x:Name="btnExport" Margin="5,0,0,0" Content="Export Xls" Click="btnExport_Click" IsEnabled="False" ></Button> |
| </StackPanel> |
| <Grid Grid.Row="1" Margin="0,5,0,0" HorizontalAlignment="Stretch" x:Name="gridContent" > |
| <telerikGridView:RadGridView x:Name="gvContent" AutoGenerateColumns="False" DataLoadMode="Asynchronous"> |
| </telerikGridView:RadGridView> |
| </Grid> |
| <telerik:RadProgressBar Grid.Row="1" x:Name="pb" Width="260" Height="30" Minimum="0" Maximum="1000" Margin="0,0,0,30" IsIndeterminate="True" Visibility="Collapsed" /> |
| </Grid> |
| </IF:LayoutBase> |
Hope this helps... Thanks
0
Hi Paolo,
Thanks for taking the time and profiling our memory usage. What you have found out are static references to dependency property metadata objects that RadGridView is using. This is definitely not a memory leak, because this is the way Silverlight works, it requires you to create static fields in order to have dependency properties.
All the best,
Stefan Dobrev
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.
Thanks for taking the time and profiling our memory usage. What you have found out are static references to dependency property metadata objects that RadGridView is using. This is definitely not a memory leak, because this is the way Silverlight works, it requires you to create static fields in order to have dependency properties.
All the best,
Stefan Dobrev
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.