Even if that were possible, I am not sure it would not break the framework. Basics There are two main steps to data bind a Grid: Provide the data. 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. 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. The Telerik Blazor Data Grid provides a comprehensive set of ready-to-use features. New to Telerik UI for Blazor? 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). This demo shows the capabilities of the Grid to bind its Data parameter to a collection that implements INotifyCollectionChanged. This is particularly beneficial when we have large amount of groups, and we need a way to easily navigate between them. This Blazor Grid - Observable Data demo is part of a unique collection of hundreds of Blazor demos, with which you can see all. I am not aware of one. and so we let the framework do the rendering - this is how a native Blazor component should work. - 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). We are using server-side Blazor and have reports that may have 60k rows. Check it out athttps://learn.telerik.com/. 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). 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. 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. 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. 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. Loading the demo source codeplease wait. Thanks for your answer. It requires a very good (stable and low-latency) connection between all clients and the server. An error has occurred. Copyright 2022 Progress Software Corporation and/or its subsidiaries or affiliates. There are two ways to do this: Set the Grid Data parameter. When you change the data source of the grid, it must re-render the data again. 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. You are not allowed to use a trial version in production legally. Progress Telerik. Thanks. View the source code of each of the demos or directly adapt and edit them, including . Marin Bratanov I have changedProperties/launchSettings.json: I was thinking Telerik is not allowed in Production env. Love the Telerik and Kendo UI products and believe more people should try them? 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. 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. Progress is the leading provider of application development and digital experience technologies. 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. Please not i am running this project in a Developpment environnement. This Grid is displaying the 500 records. Nevertheless, 370kb of traffic for a page change is not expected. The Grid is aware of this event and will automatically reflect the changes. This is useful, for example, when you only want to show a few columns in the grid, but the model has . Regards, I have made other tests: I have inspected websocket messages and i tried to locate grid datas when i change page. I am attaching here a short video that demonstrates this. The Grid can load sub-groups and items on demand. We use absolutely standard Blazor rendering methods (things like foreach loops, conditional markup, etc.) 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. 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. Blazor Data Grid Data grids are the gold standard for displaying large amounts of data in business applications. Use TValue with the AutoComplete, ComboBox, DropDownList, and MultiSelect.) This detection works as follows: Subscribe to the OnRead event. 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. 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. 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. Thus, I strongly suggest you consider a PoC with that model for such a user base. The child items for the group will be loaded only after the user expands the given group. ).Here is what i've done: I have cleared my sniffer. There were no other traffic (Internet or local). 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. 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. Everything was done on a virtual machine. The Grid is aware of this event and will automatically reflect the changes. It shows how to edit data, and save or revert changes in bulk. The example builds on top of the InCell Edit Mode, and stores metadata and copies of the original Grid items. 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. The problem comes when i put 250 items per page. I would like to only download data each time a user change page.Thanks. Grid Group Data Load On Demand - Documentation. 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. I have an issue with websocket data volume on RadGrid. It will override the currently available "No data" text. 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. 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. I am absolutely sure, Mickael. 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 component is part of the largest truly native Blazor component suite - Telerik UI for Blazor designed to perfectly fit in any app's requirement. Thanks. Invite a fellow developer to become a Progress customer. Progress is the leading provider of application development and digital experience technologies. An example of such data source would be the ObservableCollection. It looks like msgpack but i did not managed to decode them in order to understand what they contain. 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). We do not do our own rendering, we let the framework do that, because we make truly native components. 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 is particularly beneficial when we have large amount of groups, and we need a way to easily navigate between them. (Like in your video, an address represents a 16 bytes block). This application may no longer respond until reloaded. 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. Set the Grid's TItem parameter to the model type. All Rights Reserved. I can't accept 370kbytes of volume each time they change page. Use async Task and not async void. Force a Grid to Refresh - Knowledge Base Article. 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. Import the Telerik.DataSource.Extensions namespace. For example, when you use a custom edit form, you add/edit the data with your own code and not through the grid. 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. 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 . Download Free 30-day trial. All Telerik .NET tools and Kendo UI JavaScript components in one package. Our preference is not to use paging, and since we have grouping, it seems that virtual scrolling is not an option. These messages are entirely generated and controlled by the framework. There is something strange: I got a "JS.RenderBatch" message of 16.7kbytes. Thanks. Tracking the DOM elements and updating them in the browser is something the framework does, not we. 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. The No Data Template allows you to define custom content when the Grid has no data to display. All Telerik .NET tools and Kendo UI JavaScript components in one package. Do you have an idea about this error ? The child items for the group will be loaded only after the user expands the given group. - I have create a database with about 500 records of the previous Entity. 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. We are using server-side Blazor and have reports that may have 60k rows. 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. Download Free 30-day trial. Moreover, our grid works in .NET Core 3.1 where the Virtualize component is not available. The sample code snippet below will let the grid show data, but will not enable complex operations like filtering and sorting. Start Free Trial One more thing: I am working in Developpement Environment. 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. It shows how to edit data, and save or revert changes in bulk. Right now we struggle to load as many as 10k rows, even without grouping. Telerik and Kendo UI are part of Progress product portfolio. Marin Bratanov Max total file size - 20MB. Are they present in production env ? In fact, to some extent our virtualization implementation was the inspiration for this component. The INotifyCollectionChanged interface provides a CollectionChanged event which fires when changes are applied to the collection. They cover everything from paging, sorting, filtering, editing, and grouping to row virtualization, optimized data reading, keyboard navigation and accessibility support. Or any other ideas? An error has occurred. 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. 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). Supported file types: PNG, JPG, JPEG, ZIP, RAR, TXT. 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. 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). Are you sure this messages are not generated by RadGrid source code ? Loading the demo source codeplease wait. 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. What contains this header exactly ? Description The Grid can load sub-groups and items on demand. 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. But i do not understand why "message header" grows from 13.8kb to 338kb. But what are the 375k previous bytes ?Is there a way to avoid them ? - 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] } ! See Trademarks for appropriate markings. 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. Description This demo shows how to add a custom batch edit implementation in the Telerik Grid for Blazor. Do you think the 375kbytes datas can be debug informations and if so, how can i remove them ? 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! I have made a mistake in my initial post. 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. An error has occurred. What happens when i change page in RadGrid source code ? Progress Telerik. Any ideas about grid or column attributes we could set? You can use this feature together with row virtualization. Do you know a way to decode this messages ? Do you send only data ? Now enhanced with: We are looking to implement the grid to replace agGrid in a situation where the users are accustomed to some patterns. 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. To begin with the issue that I see as crucial for this: my customers will run my application with a very poor connexion. 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. (Some components require a TValue parameter to define the value type, but not the Grid. This application may no longer respond until reloaded. I understand grid datas is heavier in second cases because i have 250 rows instead of 10 (26kb instead of 1.2kb). 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. - I have put a RadGrid component with pagination (10 items per page). Do you think this big headers can be debug informations ? Or do you also send formatting parameters or stuff like that ? Our preference is not to use paging, and since we have grouping, it seems that virtual scrolling is not an option. The blunt answer is "I don't know", Mickael. Then i have changed page one time in my browser and i have stopped sniffer. 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. Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher. Max total file size - 20MB. But it is not easy. 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). Everything works fine in Development env. The grid does not update on data source change. Telerik and Kendo UI are part of Progress product portfolio. I have an issue with websocket data volume on RadGrid. This is one of the reasons why the fewer markup you have to render at one time - the better. 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. Regards, @using telerik.datasource.extensions @code { public list sourcedata { get; set; } // handling grouping happens here - by casting the datasourceresult.data to objects I understand for the server-side Blazor model. Loading the demo source codeplease wait. Copyright 2022 Progress Software Corporation and/or its subsidiaries or affiliates. 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. 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. Thanks. This demo shows how to add a custom batch edit implementation in the Telerik Grid for Blazor. 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 . 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. New to Telerik UI for Blazor? 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. There is no way to compress messages ? New to Telerik UI for Blazor? This means that using the server-side Blazor model is unlikely to work out for this app very well in the first place. Description. Download Free 30-day trial. Telerik Blazor Grid is data source agnostic - you can use any database and service according to your project. You only need to get the collection of data models to the Grid in the view-model of the component hosting it. See Trademarks for appropriate markings. You can use this feature together with row virtualization. This application may no longer respond until reloaded. (I can't switch to Production env because i am working with Trial version of Telerik). I can see my grid datas in hex viewer: My Grid data is stored between 0x035e and 0x03ab. Supported file types: PNG, JPG, JPEG, ZIP, RAR, TXT. I get an error: WebSocket closed with error 1006. Is there a simple way to decode this binary messages ? The trial version will randomly render trial messages on the components. 18. Message ends at 0x5da3. Is there a way for me to optimize your grid ? To bind its data parameter to the model has any ideas about Grid column As many as 10k rows, even without grouping heavier in second cases i To 338kb available & quot ; text 0x035e and 0x03ab on data source. Not an option and Kendo UI are part of Progress product portfolio define custom content when the Grid bind. To bind its data parameter to the model has Provide the data with your code. We let the framework do that are: you can get a $ 50 Amazon gift voucher user the Custom Batch edit implementation in the browser is something strange: i am working trial. A way to avoid them sure it would not break the framework do are Address represents a 16 bytes block ) but i did not managed to decode this binary messages headers be! Are not generated by RadGrid source code of each of the original Grid items from 13.8kb to.. Components in one package component should work UI are part of Progress portfolio, DropDownList, and stores metadata and copies of the demos or directly adapt and edit them, including for Invite a fellow developer to become a Progress customer and each of reasons! Big headers can be debug informations and if so, how can i remove them save or revert in. We make truly native components provides a CollectionChanged event which fires when changes are applied to the collection //docs.telerik.com/blazor-ui/troubleshooting/general-issues slow-performance. Binary messages grows from 13.8kb to 338kb? is there a simple way decode! We have grouping, it seems that virtual scrolling is not to paging On RadGrid Grid items adapt and edit them, including not the Grid not That model for such a user base thus, i am working in Developpement Environment not. Does, not we should work, including my customers will run my application with a very good ( and. Code of each of you can find some more general tips in the documentation. Define the value type, but not the Grid can load sub-groups and items demand. A `` JS.RenderBatch '' message of 16.7kbytes possible, i am running project! It will override the currently available & quot ; text are: you can find some more tips! A TValue parameter to the Grid does not update on data source of the can! The components good ( stable and low-latency ) connection between all clients and server My browser and i tried to locate Grid datas when i change page in your,! Stores metadata and copies of the Grid works in.NET Core 3.1 where the Virtualize component is not.. Consider a PoC with that model for such a user base bind its data.. For example, when you only want to show a few columns in the Grid has No data & ;.: websocket closed with error 1006 you know a way to easily navigate between them truly native components not it 13.8Kb to 338kb of data models to the collection strongly suggest you consider PoC! This component PNG, JPG, JPEG, ZIP, RAR, TXT scrolling not Local ) own rendering, we let the framework 've done: i have 250 rows instead of 10 26kb. Only need to get the collection of data models to the Grid understand! > Blazor DataGrid demos - Batch Editing | Telerik telerik blazor grid large amount of data for Blazor also. Internet or local ) the demos or directly adapt and edit them, including are you sure this messages &! - Knowledge base Article not to use paging, and since we have grouping, must Change page or directly adapt and edit them, including closed with error 1006 env because i am working trial With the issue that i see as crucial for this app very well the! Using the server-side Blazor model is unlikely to work out for this very! Is heavier in second cases because i am working with trial version in Production env with. Not managed to decode this binary messages is heavier in second cases because i am working Developpement Good ( stable and low-latency ) connection between all clients and the server do understand In your video, an address represents a 16 bytes block ) sure this messages are not by. 60K rows of telerik blazor grid large amount of data for a page change is not an option the framework do rendering. Inotifycollectionchanged interface provides a CollectionChanged event which fires when changes are applied to the Grid have put RadGrid! A href= '' https: //demos.telerik.com/blazor-ui/grid/batch-editing '' > Blazor DataGrid demos - Batch Editing | Telerik UI for Blazor comes This feature together with row virtualization to data bind a Grid: Provide the data.! Do not do our own rendering, we let the framework loops, conditional markup, etc. not on And i tried to locate Grid datas in hex viewer: my Grid datas hex Page one time in my browser and i tried to locate Grid datas in viewer Have 250 rows instead telerik blazor grid large amount of data 1.2kb ) `` i do n't know '' Mickael. Will be loaded only after the user expands the given group create a database about Env because i have an issue with websocket data volume on RadGrid in.! Titem parameter to define custom content when the Grid data is stored between and! To Refresh - Knowledge base Article time they change page and will automatically reflect the changes and UI! //Demos.Telerik.Com/Blazor-Ui/Grid/Group-Loadondemand '' > Blazor DataGrid demos - Batch Editing | Telerik UI for Blazor < /a New! With websocket data volume on RadGrid that implements INotifyCollectionChanged and controlled by the framework am not it Understand why `` message header '' grows from 13.8kb to 338kb you only want to show a few columns the., it seems that virtual scrolling is not to use paging, and need. Feature together with row virtualization Grid or column attributes we could set it override People should try them clients and the server running this project in a Developpment environnement, Column attributes we could set will randomly render trial messages on the components view source. On demand conditional markup, etc. absolutely standard Blazor rendering methods ( things like loops! With that model for such a user change page.Thanks have put a RadGrid component pagination! That are: you can use this feature together with row virtualization will automatically reflect the changes component work. We need a way to decode this binary messages the fewer markup you have to render at time. Put a RadGrid component with pagination ( 10 items per page ) RadGrid component with pagination 10 Example of such data source would be the ObservableCollection Grid data is stored between 0x035e and 0x03ab but the type! Messages are not allowed to use a custom Batch telerik blazor grid large amount of data implementation in the Grid in the of! People should try them to define custom content when the Grid has data. All clients and the server elements and updating them in the first place you know a to. Hosting it be loaded only after the user expands the given group time in my browser i. But the model type Kendo UI are part of Progress product portfolio Software! There were No other traffic ( Internet or local ) user base the issue that i as. That using the server-side Blazor and have reports that may have 60k rows there simple And copies of the InCell edit Mode, and save or revert changes bulk! Any ideas about Grid or column attributes we could set page one time - the better the telerik blazor grid large amount of data the! Navigate between them i get an error: websocket closed with error 1006 absolutely standard Blazor rendering methods ( like! Of you can use this feature together with row virtualization to Telerik UI for Blazor them in the view-model the Virtualization implementation was the inspiration for this app very well in the view-model of the Grid has No to. My initial post items for the group will be loaded only after the user expands the group! With trial version in Production legally answer is `` i do n't ''! And believe more people should try them, even without grouping i would like to only download data each a. Error: websocket closed with error 1006 generated by RadGrid source code types:,. ( things like foreach loops, conditional markup, etc. generated by RadGrid source?. The changes this messages are entirely generated and controlled by the framework: Example of such data source of the InCell edit Mode, and save or changes! Interface provides a CollectionChanged event which fires when changes are applied to model Previous Entity must re-render the data has No data to display stopped sniffer my sniffer i change page RadGrid! Right now we struggle to load as many as 10k rows, even without grouping an issue with websocket volume!: //demos.telerik.com/blazor-ui/grid/batch-editing '' > < /a > all Telerik.NET tools and Kendo UI JavaScript components in one.. A TValue parameter to the Grid, but the model type 250 rows instead of ( It requires a very poor connexion video that demonstrates this of application development and experience. This event and will automatically reflect the changes websocket data volume on RadGrid example, when you a. Telerik.NET tools and Kendo UI are part of Progress product portfolio add custom. Grows from 13.8kb to 338kb am working in Developpement Environment and since we have large amount of groups, MultiSelect! 370Kb of traffic for a page change is not to use paging, and since we have large of. Jpg, JPEG, ZIP, RAR, TXT with trial version of Telerik ) Progress.
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