telerik blazor grid selecteditems

Progress Telerik. You can use the OnRowClick event to achieve the desired behavior. Also, deselecting multiple rows with a single click on any row will become impossible. The Charts allow you to visualize and output graphical representations of data. I know virtually nothing about JS (hence my enthusiasm for Blazor) so an actual example would be great. 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. (at least when I do it). https://github.com/telerik/blazor-ui/blob/master/grid/persist-selection, https://github.com/adrianwright109/blazor-ui/tree/feature/persisted-state-not-updated-in-grid, https://demos.telerik.com/blazor-ui/grid/persist-state, https://docs.telerik.com/blazor-ui/components/grid/selection/overview#selecteditems-equals-comparison, Invite a fellow developer to become a Progress customer. On the other hand, programmatic selection and deselection is demonstrated in the online demo: https://demos.telerik.com/blazor-ui/grid/selection. I need to both select page 3, select the row and make sure it's visible. Clearing Grid data does not clear SelectedItems. via Ctrl + Click (Windows) or Cmd + Click (Mac) If the user should be able to deselect a row via a simple click, this may create inconsistency with other well-known interfaces (such as Windows Explorer or Excel . Regards, If you are using single selection you could use JS interop to find the row the has the selected state and call its .scrollIntoView() method. Trying to figure out how to make the grid rerender after this now. Check checkbox -> All items from the previous data set will be selected (printed in ul bellow grid)I have inspected the grid and i does not contain any item in its Data collection so I'm unsure from where does it get the selection. This would be pretty handy as currently the only way that makes sense for me is to make no use of selection mode at all. Let me know if you have any comments on all of the above. With the keyboard support that we introduced in our latest release, the user can also use the up/down arrows to move around the rows, and that will also scroll the grid. I have taken thehttps://github.com/telerik/blazor-ui/blob/master/grid/persist-selectionexample and updated it to use a CascadingValue parameter to persist the state across pages. The example shows how to get the index of a particular item, in a similar fashion you could get that index according to all the data you have, not just the current page (that logic is entirely up to the app, the grid cannot influence the way you obtain data, and especially how to do this in a performant manner). Great, thx for the quick reply that helps. All Rights Reserved. If you manually scroll a bit, the grid will update and items will rerender. TelerikGrid - Deselect selected rows (by clicking on it or promatically), Thanks for the repsonse. 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. There doesn't seem to be a way to deselect the selected row either by clicking on a selected row again or by two-way-binding and setting it to an empty list. What exactly isn't working with new versions? Telerik and Kendo UI are part of Progress product portfolio. Marin Bratanov What is not working is that those rows in the grid should also be highlighted and ticked as selected. Notice that the checkbox is selected even though nothing is in the grid. After an update I want to be able to select a row and make sure is viewable in the grid. There is no built-in feature for scrolling to a specific selected row, however. Progress Telerik. I have the same issue with version 2.5.1 of the Telerik.UI.for.Blazor" nuget package. 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. To use single row selection, set the SelectionMode property to Telerik.Blazor.GridSelectionMode.Single. The Scheduler allows you to display events in different views with built-in support for editing. I am logging this for further research as there isn't further public API to control this. See Trademarks for appropriate markings. I can store the selected tickbox state to hold a list of all the selected items. yes - I tried that, but it does not seem to work (the former selected row stays red - might be an issue on doing it in the rowClick event as it might overwrite the selected items later): . Are you using this approach? Hi Lutz, The Grid allows users to deselect rows in two ways: via unchecking the respective checkbox, especially on touch devices. If you want to deselect all rows, you can assign an empty List, e.g. I'm following your example listed here (in ObservableCollection section)https://docs.telerik.com/blazor-ui/components/grid/selection/overview, Clear data set. If you are using single selection you could use JS interop to find the row the has the selected state and call its .scrollIntoView() method.". Check checkbox -> All items from the previous data set will be selected (printed in ul bellow grid) If I hard code the data then the persisted selection so correctly when returning back to the grid. All Telerik .NET tools and Kendo UI JavaScript components in one package. Telerik and Kendo UI are part of Progress product portfolio. This solves half of my problem; in addition to being able to select the row and scroll it into view I need to select the correct page that the row appears on. This is required because the SelectedItemsChanged event would fire after the OnRowClick. I would go back to 2.22.0 but its no longer in the nuget package source. Love the Telerik and Kendo UI products and believe more people should try them? Can you please provide an example of how to move to a different page of the grid? Hi Adrian, I combined all your posts into a single one so there is a clear flow in the order you found and tried things. This application may no longer respond until reloaded. An error has occurred. Can you share your implementation? I checked in more detail and confirm that it is not possible to trigger deselection specifically in the row click event. As an attached file you can see a demo application that showcases such an implementation. All Rights Reserved. You can select a row programmatically by using two-way binding on the SelectedItems collection: You may also find useful this sample:https://github.com/telerik/blazor-ui/tree/master/grid/persist-selection. : Have you tried this approach? Is this a bug or do I need to manually override/set Equals on the grid row objects?If implementing manual overrides to the Equals method is required, examples of how to do this so its compatible with the grid would be appreciated. Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher. Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher. All Rights Reserved. Best regards,Robert. 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! You can also use a checkbox column to select rows. See Trademarks for appropriate markings. You guys are great, very fast response. When it gets fixed its status will change (to something like Planned, In Development, Completed) and a Release will be shown. Can you elaborate about how to do this? The Grid allows you to browse, sort and edit tabular data. 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. fyi, scrolling into view with a virtual grid worked fine in 2.22.0 but broke in 2.24. // the line below assumes no sorting or filtering. Grid (simplified) look like this. Regards, Download Free 30-day trial. In the meantime, we will review this use case in the product team. One important thing that should be done is the cancellation of the SelectedItemsChanged event. The Examples section showcases how you can use the grid features together. To observe the behavior of the different selection modes use the dropdown list on the top left side of the demo. See Trademarks for appropriate markings. Indeed, it exists in 2.5.1 as well, because is it not fixed yet. The Telerik Grid for Blazor allows you to select an item or a multitude of items. And if the active row is not visible allow scrolling the active row into view? Check it out athttps://learn.telerik.com/. For multiple row selection that would become a heuristic task, however. Notice that the checkbox is selected even though nothing is in the grid.Uncheck chekcbox. Most Popular Blazor Components. Not sure how or why this broke, but now you can scroll to the item, but the list will render as empty, just with the scrollbar visible. Thank you very much. I think the issue could be that the grid is not seeing the selected items that have been persisted as the same as the ones when returning back to the grid.The data in the grid is re-populated from the database and the object references don't match. Uncheck chekcbox. A toggle mode like, (Total attached files size should be smaller than, Progress Telerik UI for Blazor Feedback Portal, Invite a fellow developer to become a Progress customer, via unchecking the respective checkbox, especially on touch devices, via Ctrl + Click (Windows) or Cmd + Click (Mac). The selection itself can be done in different ways: This demo shows both concepts. All Telerik .NET tools and Kendo UI JavaScript components in one package. Progress is the leading provider of application development and digital experience technologies. Now enhanced with: I have a Telerik Blazor Grid which has selection tickboxes that allow multiple tickboxes to be selected at any one time. Regards, // select item 11 which would be hidden initially, //rougly one rendering frame so this has the chance to render in the browser. Grid Single-row Selection - Documentation. You can click the Follow button to get email notifications about status changes. Copyright 2022 Progress Software Corporation and/or its subsidiaries or affiliates. Progress is here for your business, like always. I combined all your posts into a single one so there is a clear flow in the order you found and tried things. Progress is the leading provider of application development and digital experience technologies. To select multiple rows, hold down the Ctrl or Shift key to extend the selection. Progress Telerik, "There is no built-in feature for scrolling to a specific selected row, however. You can set the Page parameter of the grid to make it go to a different page: You could start with the approach described here: https://docs.telerik.com/blazor-ui/knowledge-base/grid-get-index-of-grid-row. The following scenario does not work. Loading the demo source codeplease wait. Copyright 2022 Progress Software Corporation and/or its subsidiaries or affiliates. Imagine a grid with 100 rows with 10 rows per page. If Ctrl + Click will not be intuitive for your users, please consider adding a checkbox column, which will produce the desired ability to unselect a selected row in a straightforward way. If I navigate away from the grid say to another page and then return back to the grid I would like to be able to render the grid with the rows that were selected so they are shown as still ticked - is this possible? Progress is the leading provider of application development and digital experience technologies. Telerik and Kendo UI are part of Progress product portfolio. Supported file types: PNG, JPG, JPEG, ZIP, RAR, TXT. I thought I could set a reference to the grid component and select the page in code, but that only changes the page selector at the bottom of the grid, it doesn't advance the contents of the grid so that it's showing the rows on that page. The DropDownList allows you to select an item from a list of predefined values . Max total file size - 20MB. Progress is the leading provider of application development and digital experience technologies. (Total attached files size should be smaller than, Progress Telerik UI for Blazor Feedback Portal, https://docs.telerik.com/blazor-ui/components/grid/selection/overview, https://feedback.telerik.com/blazor/1444399-clearing-grid-data-does-not-clear-selecteditems. The Telerik Grid for Blazor allows you to select an item or a multitude of items. All Rights Reserved. Basics. This is a migrated thread and some comments may be shown as answers. Now enhanced with: Is there a way to programmatically select an active row in the Grid? See Trademarks for appropriate markings. In order to achieve the desired behavior, you should handle both the selection and deselection of the items in the OnRowClick event handler. To un-select the item, click its checkbox again, or hold the Ctrl key and click/tap the row. To observe the behavior of the different selection modes use the dropdown list on the top left side of the demo. Max total file size - 20MB. Marin Bratanov I have followed the pattern in here: https://github.com/telerik/blazor-ui/blob/master/grid/persist-selection/Pages/Index.razorI am storing the SelectedItems in the SelectedItemsChanged event handler and storing them on a Cascading value component so they are available across pages.When returning back to the page that has the grid the SelectedItems are not highlighted.The grid's SelectedItems property points to the CascadingValue property of selected items.I can successfully print out the SelectedItems count from the same CascadingValue property above the grid, so there is definitely data there, but the grid doesn't seem to want to show those items as selected.I have also tried setting the SelectedItems property on SetState but that has same problem.FYIThe grid uses OnRead where the data is filled into the grid on initialization of the page and when ever paging or filtering, sorting is applied. You can configure the selection behavior by setting SelectionMode to a member of the Telerik.Blazor.GridSelectionMode enum. Love the Telerik and Kendo UI products and believe more people should try them? I moved this report to the public Feedback portal so you can Follow its status: https://feedback.telerik.com/blazor/1444399-clearing-grid-data-does-not-clear-selecteditems. This solves half of my problem; in addition to being able to select the row and scroll it into view I need to select the correct page that the row appears on. Supported file types: PNG, JPG, JPEG, ZIP, RAR, TXT. Select an item in the grid. Marin Bratanov With the public forums, you can edit your original post to add/change information to have a coherent description of the problem that won't get scattered if the thread is sorted by date, or upvote on posts change the order. This can be found here in this feature branch:https://github.com/adrianwright109/blazor-ui/tree/feature/persisted-state-not-updated-in-grid. The CascadingValue is working to persist state across pages as can be seen from the animated gif below, as the IDs 1 and 3 are shown under the grid after navigating pages. With the public forums, you can edit your original post to add/change information to have a coherent description of the problem that won't get scattered if the thread is sorted by date, or upvote on posts change the order. New to Telerik UI for Blazor? It already contains the selected items and I think (as you have also found) that the only thing you need to do is to ensure an Equals comparison works for that scenario, see more here:https://docs.telerik.com/blazor-ui/components/grid/selection/overview#selecteditems-equals-comparison. The selection itself can be done in different ways: This Blazor Grid - Selection demo is part of a unique collection of hundreds of Blazor demos, with which you can see all. Telerik and Kendo UI are part of Progress product portfolio. Progress Telerik. // in more complex scenarios, calculate the desired row position, // based on the whole Grid data set and the current sorting/filtering state, https://docs.telerik.com/blazor-ui/components/grid/selection/single#two-way-binding-of-selecteditems, https://docs.telerik.com/blazor-ui/components/grid/selection/multiple#two-way-binding-of-selecteditems, https://github.com/telerik/blazor-ui/tree/master/grid/persist-selection, https://docs.telerik.com/blazor-ui/knowledge-base/grid-get-index-of-grid-row. Copyright 2022 Progress Software Corporation and/or its subsidiaries or affiliates. Scrolling to a Grid row in virtual mode should rely on the Skip property of the Grid state. That said, I would first suggest you look into the Grid State feature to save the current grid settings for your user: https://demos.telerik.com/blazor-ui/grid/persist-state. Clear data set. Marin: Thanks for the prompt reply and sample code. Grid (simplified) look like this. Then, since you know the PageSize, you can perform the calculation to know which Page this item is on.

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