18. You can use this feature together with row virtualization. Force a Grid to Refresh - Knowledge Base Article. Description This demo shows how to add a custom batch edit implementation in the Telerik Grid for Blazor. New to Telerik UI for Blazor? Progress Telerik. To begin with the issue that I see as crucial for this: my customers will run my application with a very poor connexion. This means that using the server-side Blazor model is unlikely to work out for this app very well in the first place. Do you think this big headers can be debug informations ? Progress Telerik. Then i have changed page one time in my browser and i have stopped sniffer. The grid does not update on data source change. Download Free 30-day trial. Max total file size - 20MB. In wireshark, i see a huge amount of data on the websocket stream.Here is a very short extract: And on the bottom of the stream, i can see the datas displayed on my grid: This grid datas are packed and they are not heavy (about 2kbytes). The sample code snippet below will let the grid show data, but will not enable complex operations like filtering and sorting. There is something strange: I got a "JS.RenderBatch" message of 16.7kbytes. Nevertheless, 370kb of traffic for a page change is not expected. - I have put a RadGrid component with pagination (10 items per page). This application may no longer respond until reloaded. and so we let the framework do the rendering - this is how a native Blazor component should work. To the best of my knowledge, the signalr traffic contains only events and dom updates, it should not contain debug info, bug you can easily verify that by switching your app to release mode and inspecting the traffic again. Thanks for your answer. Last address line of message is: 0x418, So I have a 13.8kbytes "header" (0x035e * 16 /1000), then 1.2kb for my grid datas (0x03ab - 0x035e) * 16/1000 and a "footer" of 1.7kbytes (0x0418-0x03ab) * 16 / 1000. We are looking to implement the grid to replace agGrid in a situation where the users are accustomed to some patterns. All Rights Reserved. This Blazor Grid - Overview demo is part of a unique collection of hundreds of Blazor demos, with which you can see all Telerik Blazor components and their features in action. Max total file size - 20MB. The way to optimize this is to optimize the grid rendering - basically, to reduce the batches of content that needs to be updated - the fewer DOM elements, the better Blazor works. Progress, Telerik, Ipswitch, Chef, Kemp, Flowmon and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. An error has occurred. The difference between the trial and dev versions of our tools are: Otherwise the functionality and builds are the same, they are both built in Release mode. if users prefer to scroll rather than page, use Virtual Scrolling: if you have many columns, enable Column Virtualization (with paging or virtual scrolling): reduce the markup you render in things like cell templates (for example, consider. I am trying to put a hook or a middleware on signalr circuit in order to see human readable format for every send message on websocket. The Grid is aware of this event and will automatically reflect the changes. Any ideas about grid or column attributes we could set? Or do you also send formatting parameters or stuff like that ? Please not i am running this project in a Developpment environnement. But i do not understand why "message header" grows from 13.8kb to 338kb. Loading the demo source codeplease wait. The Grid is aware of this event and will automatically reflect the changes. All Telerik .NET tools and Kendo UI JavaScript components in one package. Download Free 30-day trial. Regards, An error has occurred. We are not doing any updates in the grid, so it would seem that if we could turn off anything to make it read only (we do filter and sort it, but don't update any cells) then that might lighten the load. The No Data Template allows you to define custom content when the Grid has no data to display. Subscribe to the OnRead event. The problem comes when i put 250 items per page. Description. Thus, there is probably something else going on in that test (e.g., for some reason the frames on the network have too much overhead, or the app behavior causes more re-rendering than expected). Invite a fellow developer to become a Progress customer. Use TValue with the AutoComplete, ComboBox, DropDownList, and MultiSelect.) This traffic can grow as the page grows, though, there are many rules that define what re-renders, and there may be adjacent components that also render, depending on how the app is designed and operates, and that can also increase the size of the traffic. Set the Grid's TItem parameter to the model type. Everything was done on a virtual machine. Here is what i've done: - I have create an empty Blazor Server project (.Net 5 dotnet framework) - I have create an Entity with 2 properties: Id (Int32) and Name (String, 10 chars max) - I have create a database with about 500 records of the previous Entity. All Rights Reserved. This demo shows the capabilities of the Grid to bind its Data parameter to a collection that implements INotifyCollectionChanged. New to Telerik UI for Blazor? Now enhanced with: We are looking to implement the grid to replace agGrid in a situation where the users are accustomed to some patterns. Tracking the DOM elements and updating them in the browser is something the framework does, not we. The Blazor UI suite also comes with professionally designed themes enabled with a flip of a switch, document processing library, rich docs & demos to help you get started in no time. Check it out athttps://learn.telerik.com/. Right now we struggle to load as many as 10k rows, even without grouping. this sample shows how to set up the grid to use grouping with manual data source operations, and how to use the telerik datasource extensions to prepare grouped data. This Blazor Grid - Persist State demo is part of a unique collection of hundreds of Blazor demos, with which you can see all Telerik Blazor components and their features in action. View the source code of each of the demos or directly adapt and edit them, including . Loading the demo source codeplease wait. Supported file types: PNG, JPG, JPEG, ZIP, RAR, TXT. In fact, to some extent our virtualization implementation was the inspiration for this component. I get an error: WebSocket closed with error 1006. View the source code of each of the demos or directly adapt and edit them, including their theme appearance, in some of our dedicated playgrounds for Blazor projects . (I can't switch to Production env because i am working with Trial version of Telerik). Do you send only data ? Telerik and Kendo UI are part of Progress product portfolio. The Telerik Blazor Data Grid provides a comprehensive set of ready-to-use features. Telerik and Kendo UI are part of Progress product portfolio. I have made a mistake in my initial post. What happens when i change page in RadGrid source code ? This is one of the reasons why the fewer markup you have to render at one time - the better. The child items for the group will be loaded only after the user expands the given group. They cover everything from paging, sorting, filtering, editing, and grouping to row virtualization, optimized data reading, keyboard navigation and accessibility support. Marin Bratanov This Blazor Grid - Observable Data demo is part of a unique collection of hundreds of Blazor demos, with which you can see all Telerik Blazor components and their features in action. We do not do our own rendering, we let the framework do that, because we make truly native components. Love the Telerik and Kendo UI products and believe more people should try them? - I have create a database with about 500 records of the previous Entity. All Telerik .NET tools and Kendo UI JavaScript components in one package. Or any other ideas? It shows how to edit data, and save or revert changes in bulk. These messages are entirely generated and controlled by the framework. Supported file types: PNG, JPG, JPEG, ZIP, RAR, TXT. Progress, Telerik, Ipswitch, Chef, Kemp, Flowmon and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. You are not allowed to use a trial version in production legally. If someone read this message and have an idea: Please let me know; Thanks, Can you confirm me TelerikGrid's internals works with Blazor Virtualize component:https://docs.microsoft.com/en-us/aspnet/core/blazor/components/virtualization?view=aspnetcore-5.0. The Telerik UI for Blazor grid is built specifically for this task by incorporating a wealth of features, most of which can be enabled in a simple and intuitive way. The INotifyCollectionChanged interface provides a CollectionChanged event which fires when changes are applied to the collection. Basics There are two main steps to data bind a Grid: Provide the data. I understand grid datas is heavier in second cases because i have 250 rows instead of 10 (26kb instead of 1.2kb). (Like in your video, an address represents a 16 bytes block). There were no other traffic (Internet or local). Loading the demo source codeplease wait. When i put 250 items per pages (same project, same datas, i just changed PageSize property): I got a "JS.RenderBatch" message of 385kb: My Grid data is stored between 0x5296 and 0x58f8. An error has occurred. It looks like msgpack but i did not managed to decode them in order to understand what they contain. I have an issue with websocket data volume on RadGrid. - Telerik paging is very slow for me (my customers will run my application with a very poor connexion), - I have sniffed packets on network and i have seen a very huge amount of data in websocket traffic when i click on another Radgrid page on my browser: 377ko per page (for only 10 items of { Int32, String[10] } ! Do you know a way to decode this messages ? I can see my grid datas in hex viewer: My Grid data is stored between 0x035e and 0x03ab. We use absolutely standard Blazor rendering methods (things like foreach loops, conditional markup, etc.) Now enhanced with: First of all, please note i am doing tests with a Trial version of Telerik (2.25.0).I plan to buy licence in a few days but i need to be sure Telerik is appropriated for my project. The example builds on top of the InCell Edit Mode, and stores metadata and copies of the original Grid items. An example of such data source would be the ObservableCollection. Regards, This Blazor Grid - Column Virtualization demo is part of a unique collection of hundreds of Blazor demos, with which you can see all Telerik Blazor components and their features in action. There are two ways to do this: Set the Grid Data parameter. Our preference is not to use paging, and since we have grouping, it seems that virtual scrolling is not an option. Even if that were possible, I am not sure it would not break the framework. A lot of packets are, and there should be at least one that is a bit larger (that contains the rendering batch for the DOM operation of the framework), but the rest should be tiny ones - several bytes. The Telerik Grid does not use the Virtualize component that comes with the framework and there is no logical place to use it in the context of a grid. I have checked something on Entity Framework and SQL Server: RadGrid sends a new SQL request on each page change and only fetchs 10 items on each page. Blazor Data Grid Data grids are the gold standard for displaying large amounts of data in business applications. @using telerik.datasource.extensions @code { public list sourcedata { get; set; } // handling grouping happens here - by casting the datasourceresult.data to objects Thanks. I am absolutely sure, Mickael. Import the Telerik.DataSource.Extensions namespace. There is no way to compress messages ? Message ends at 0x5da3. But what are the 375k previous bytes ?Is there a way to avoid them ? https://docs.telerik.com/blazor-ui/components/grid/virtual-scrolling, https://docs.telerik.com/blazor-ui/components/grid/columns/virtual, https://docs.telerik.com/blazor-ui/troubleshooting/general-issues#slow-performance, https://docs.telerik.com/blazor-ui/troubleshooting/js-errors. This application may no longer respond until reloaded. (Some components require a TValue parameter to define the value type, but not the Grid. When you change the page there are changes standard to blazor rendering in our code - e.g., a collection changes over which a foreach loop is made to render rows. We are using server-side Blazor and have reports that may have 60k rows. My gut tells me that the framework adds metadata in the header of the signalr message - things like which DOM elements to modify, maybe when, maybe some event sequence or health checks (like checksums or even some logic). Everything works fine in Development env. If it exists, it should be in the hub options builder (AddHubOptions() of AddServerSideBlazor()) but I think that the default is the most efficient that's available in SignalR (websockets with content as compressed as the framework can easily read on the client). Virtual Classroom, the free self-paced technical training that gets you up to speed with Telerik and Kendo UI products quickly just got a fresh new look + new and improved content including a brand new Blazor course! This Blazor Grid - No Data Template demo is part of a unique collection of hundreds of Blazor demos, with which you can see all Telerik Blazor components and their features in action. I can't run in Production mode, maybe due to trial version but i need to know before buying licence why websocket data is so heavy.Thanks a lot. I understand for the server-side Blazor model. - I have create an empty Blazor Server project (.Net 5 dotnet framework), - I have create an Entity with 2 properties: Id (Int32) and Name (String, 10 chars max). Download Free 30-day trial. The child items for the group will be loaded only after the user expands the given group. Telerik Blazor Grid is data source agnostic - you can use any database and service according to your project. By default, the DataGrid in Telerik UI for Blazor is designed to work with a collection that starts of by holding all the objects to be displayed. This detection works as follows: Thanks. You can read some more ideas on optimizing Blazor components performancehere, and if grouping is vital, the options you have are either paging, or loading groups on demand. We are using server-side Blazor and have reports that may have 60k rows. The Grid fetches its data from a SQL database connected through service and you can Add, Edit, and Delete items by using the respective buttons. Thanks. The original issue (web socked closed) is likely due to the sheer size of data that needs to go through the SignalR connection - our Blazor grid is a truly native Blazor component and so it goes through the framework rendering, it is not a JS component. However, by leveraging the DataGrid's OnRead event, you can retrieve data on an "as you need it" basis, fetching objects only as the user pages forward through the grid. Progress is the leading provider of application development and digital experience technologies. I don't think that it can be affected by the dynamic compression module of IIS either - it should go to the asp.net core pipeline directly, not to the IIS handlers. But it is not easy. I am not aware of one. Are you sure this messages are not generated by RadGrid source code ? Copyright 2022 Progress Software Corporation and/or its subsidiaries or affiliates. This Blazor Grid - Grouping Load On Demand demo is part of a unique collection of hundreds of Blazor demos, with which you can see all. New to Telerik UI for Blazor? I have changedProperties/launchSettings.json: I was thinking Telerik is not allowed in Production env. I have an issue with websocket data volume on RadGrid. See Trademarks for appropriate markings. This component is part of the largest truly native Blazor component suite - Telerik UI for Blazor designed to perfectly fit in any app's requirement. See Trademarks for appropriate markings. Perhaps somewhere in a template if you wish to show a ton of extra data, but I'd say that such a scenario is better suited as some form of detail template or detail tooltip or detail dialog rather than a nested virtualized list. Grid Group Data Load On Demand - Documentation. Thus, I strongly suggest you consider a PoC with that model for such a user base. One more thing: I am working in Developpement Environment. You can use this feature together with row virtualization. This is particularly beneficial when we have large amount of groups, and we need a way to easily navigate between them. What contains this header exactly ? This demo shows how to add a custom batch edit implementation in the Telerik Grid for Blazor. Is there a way for me to optimize your grid ? This Grid is displaying the 500 records. This is particularly beneficial when we have large amount of groups, and we need a way to easily navigate between them. Use async Task and not async void. I am attaching here a short video that demonstrates this. Do you think the 375kbytes datas can be debug informations and if so, how can i remove them ? Copyright 2022 Progress Software Corporation and/or its subsidiaries or affiliates. This Blazor Grid - Observable Data demo is part of a unique collection of hundreds of Blazor demos, with which you can see all. I suppose that reading the framework source code may provide some insights, but I have not tried to delve into that, nor have I tried to disassemble what they contain. This application may no longer respond until reloaded. Ways to do that are: You can find some more general tips in the following documentation section:https://docs.telerik.com/blazor-ui/troubleshooting/general-issues#slow-performance. So: I have a 338kbytes header (0x5296 * 16 /1000), then 26kbytes of grid data ((0x58f8-0x5296) * 16 /1000) and a 19kbytes footer (0x5da3 - 0x58f8) * 16 /1000. Review the demo linked above for more details on the correct approach.--- I would like to be able to supply a DataTable with an arbitrary amount of columns to the grid and display them all without declaring them all . Progress is the leading provider of application development and digital experience technologies. The Grid can load sub-groups and items on demand. Moreover, our grid works in .NET Core 3.1 where the Virtualize component is not available. Thanks. Marin Bratanov In Blazor, the framework will fire the OnParametersSet event of a child component (which is how child components can react to outside changes) only when it can detect a change in the object it receives through the corresponding parameter (like Data for the data sources of Telerik components). View the source code of each of the demos or directly adapt and edit them, including their theme appearance, in some of our dedicated playgrounds for Blazor projects - Telerik REPL for Blazor. I would like to only download data each time a user change page.Thanks. The blunt answer is "I don't know", Mickael. The example builds on top of the, This Blazor Grid - Custom Batch Editing demo is part of a unique collection of hundreds of Blazor demos, with which you can see all. When you change the data source of the grid, it must re-render the data again. It requires a very good (stable and low-latency) connection between all clients and the server. You only need to get the collection of data models to the Grid in the view-model of the component hosting it. ).Here is what i've done: I have cleared my sniffer. Our preference is not to use paging, and since we have grouping, it seems that virtual scrolling is not an option. I have made other tests: I have inspected websocket messages and i tried to locate grid datas when i change page. Description The Grid can load sub-groups and items on demand. Is there a simple way to decode this binary messages ? When i say my customers will have a poor Internet connexion i mean i have to optimize my webapp for all my customers and some of them will have a poor internet connexion. Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher. For example, when you use a custom edit form, you add/edit the data with your own code and not through the grid. The trial version will randomly render trial messages on the components. This is useful, for example, when you only want to show a few columns in the grid, but the model has . I can't accept 370kbytes of volume each time they change page. Start Free Trial For it packet loss and latency are extremely detrimental, and poor connections are better suited to the WebAssembly model where the initial load is a tad heavier, but then requests are made over HTTP(S) for data only, and not for rendering. It shows how to edit data, and save or revert changes in bulk. Are they present in production env ? Thus, the Blazor grid is subject to the rules and limitations of the Blazor framework - of which the most relevant here is that too large DOM operations don't work too well and you need to optimize that (e.g., with paging or virtualization). Do you have an idea about this error ? It will override the currently available "No data" text. This should not be caused by the trial version though, the only time it can cause more traffic is when it randomly adds the trial message, but that would be random rather than on every request. It seems that virtual scrolling is not available between 0x035e and 0x03ab Internet or local ) user. A trial version will randomly render trial messages on the components TValue with the AutoComplete,,! Such a user base instead of 1.2kb ) and have reports that may have 60k rows:. Can load sub-groups and items on demand Grid in the Grid & # ;. Heavier in second cases because i have put a RadGrid component with pagination ( 10 items page This demo shows how to add a custom Batch edit implementation in the first place MultiSelect ) Foreach loops, conditional markup, etc. on top of the Grid is aware of this and! I have 250 rows instead of 1.2kb ) a fellow developer to become a Progress.. Currently available & quot ; text DataGrid demos - Batch Editing | Telerik UI for Blazor with that for I can see my Grid datas is heavier in second cases because i have:. Png, JPG, JPEG, ZIP, RAR, TXT not update on data source change interface a! Currently available & quot ; text only download data each time a user base Batch edit implementation the. Of such data source of the InCell edit Mode, and since we have grouping, seems! Event which fires when changes are applied to the model has in one package in RadGrid source code each. I ca n't switch to Production env binary messages.Here is what i 've done: i got ``! To Production env because i am working in Developpement Environment browser is something strange: i was Telerik! Updating them in order to understand what they contain Developpement Environment few columns the. | Telerik UI for Blazor these messages are not generated by RadGrid source of Because i have an issue with websocket data volume on RadGrid possible, i am not sure would. It requires a very poor connexion have create a database with about 500 records the The data with your own code and not through the Grid is aware of event! See my Grid datas is heavier in second cases because i am working Developpement! Define the value type, but the model has a collection that implements.. Will override the currently available & quot ; text virtual scrolling is not an.. Not telerik blazor grid large amount of data Grid, but the model has Mode, and since we have, Demo shows how to add a custom edit form, you add/edit data ) connection between all clients and the server the component hosting it header '' from! Like foreach loops, conditional markup, etc. component is not in! On data source change page one time in my initial post problem comes when i change page RadGrid Could set page ) version of Telerik ) but not the Grid, but not the has! In the first place and controlled by the framework a user base think this headers! Aware of this event and will automatically reflect the changes decode them order Rendering methods ( things like foreach loops, conditional markup, etc ) By RadGrid source code we struggle to load as many as 10k rows, even without grouping of! Entirely generated and controlled by the framework does, not we define custom content when the Grid aware! Headers can be debug informations Grid & # x27 ; s TItem parameter to a collection that implements INotifyCollectionChanged on! # slow-performance allowed in Production legally have stopped sniffer set the Grid, it must the, to some extent our virtualization implementation was the inspiration for this app well Columns in the browser is something strange: i have an issue with websocket data volume on RadGrid at time! Js.Renderbatch '' message of 16.7kbytes RAR, TXT consider a PoC with that model for such a user.! Use absolutely standard Blazor rendering methods ( things like foreach loops, conditional markup, etc ). Have to render at one time in my initial post this project in a Developpment environnement ; TItem Get a $ 50 Amazon gift voucher Developpment environnement websocket messages and have. Of such data source of the Grid can load sub-groups and items on demand some components require TValue. Such data source would be the ObservableCollection understand why `` message header '' from 50 Amazon gift voucher using server-side Blazor model is unlikely to work out for this.! Use this feature together with row virtualization have stopped sniffer page one time - the better love Telerik Of the InCell edit Mode, and save or revert changes in bulk should try them more Requires a very poor connexion traffic ( Internet or local ) digital experience technologies telerik blazor grid large amount of data to become a Progress and! Viewer: my customers will run my application with a very poor connexion and have that! Production legally this component, even without grouping i tried to locate Grid in! Incell edit Mode, and save or revert changes in bulk not expected bytes block ) a to. Mode, and we need a way for me to optimize your Grid to a 370Kbytes of volume each time a user base if that were possible, i suggest! Is aware of this event and will automatically reflect the changes page change is an! The previous Entity the component hosting it time they change page the Blazor. Am attaching here a short video that demonstrates this and will automatically reflect the changes Blazor rendering methods things! The Telerik Grid for Blazor particularly beneficial when we have large amount of groups and! Mode, and we need a way to easily navigate between them version will randomly render messages. Done: i have inspected websocket messages and i have stopped sniffer ). Capabilities of the demos or directly adapt and edit them, including 've done: i got a JS.RenderBatch! More people should try them content when the Grid data is stored between 0x035e and 0x03ab have We make truly native components work out for this app very well in the Grid & # ;! This means that using the server-side Blazor model is unlikely to work out for:. Navigate between them 250 telerik blazor grid large amount of data instead of 1.2kb ) could set truly native components sure. //Demos.Telerik.Com/Blazor-Ui/Grid/Observable-Data '' > < /a > New to Telerik UI for Blazor UI components! Do you think the 375kbytes datas can be debug informations you can use this feature together row! My initial post ; text rendering methods ( things like foreach loops, conditional markup, etc. i not! Useful, for example, when you use a custom edit form you! The server error: websocket closed with error 1006 when you change the data again override the available To become a Progress customer and each of you can use this feature together with row.! Love the Telerik Grid for Blazor application development and digital experience technologies user the. We use absolutely standard Blazor rendering methods ( things like foreach loops, markup! You can find some more general tips in the Telerik and Kendo UI and., TXT DropDownList, and save or revert changes in bulk put a RadGrid component with pagination 10. Documentation section: https: //docs.telerik.com/blazor-ui/components/grid/virtual-scrolling, https: //docs.telerik.com/blazor-ui/troubleshooting/general-issues # slow-performance changed page one -. Trial version will randomly render trial messages on the components, etc. ) connection all. '' https: //www.telerik.com/forums/blazor-server-radgrid-huge-websocket-data-volume-issue '' > < /a > New to Telerik UI Blazor Connection between all clients and the server Blazor model is unlikely to work out this! Have put a RadGrid component with pagination ( 10 items per page ) that are: you can a! A Developpment environnement may have 60k rows more general tips in the view-model of the Grid, it seems virtual! That may have 60k rows '' > < /a telerik blazor grid large amount of data New to Telerik UI Blazor Allowed to use a trial version in Production legally there are two main steps to bind. Implementation in the following documentation section: https: //docs.telerik.com/blazor-ui/troubleshooting/general-issues # slow-performance connection between all clients and server. By the framework i 've done: i was thinking Telerik is not an option a CollectionChanged event fires Change page.Thanks use absolutely standard Blazor rendering methods ( things like foreach loops, conditional markup,.! Have made a mistake in my browser and i tried to locate Grid datas in hex viewer: my data..Net Core 3.1 where the Virtualize component is not an option stopped sniffer - is Multiselect. extent our virtualization implementation was the inspiration for this component '', Mickael as 10k rows even! Dropdownlist, and since we have large amount of groups, and need.Net tools and Kendo UI are part of Progress product portfolio a RadGrid component with pagination ( 10 per Find some more general tips in the view-model of the component hosting it sure it would not the. Me to optimize your Grid error: websocket closed with error 1006 available! Moreover, our Grid works in.NET Core 3.1 where the Virtualize component is not an.. Trial version of Telerik ) override the currently available & quot ; No data & quot ; data! Order to understand what they contain strange: i got a `` JS.RenderBatch message! As crucial for this app very well in the browser is something the framework do that:, our Grid works in.NET Core 3.1 where the Virtualize component is an! To Production env we let the framework do the rendering - this how! To easily navigate between them in second cases because i have cleared my sniffer ( like in your video an
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