Progress Telerik UI for Blazor


  • Visualize data and let users edit it with the powerful Blazor Grid component. With support for paging, sorting, filtering, lazy loading, flexible data binding to any application data source,  and many other features, this comprehensive control can be trivially setup to cover a variety of use cases.
  • 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.
  • 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.
Telerik UI for Blazor Suite
Nasa, Visa, Microsoft Fox, Samsung, IBM World Bank Group, Volvo
  • Blazor Grid Overview

    The Blazor Data Grid is a full featured data visualization and editing component that works in both Blazor WebAssembly (WASM) and server-side Blazor apps. You can easily display large amounts of data in a table, then page, filter, sort and group over it, as well as edit rows and validate the user input. 

    All you need to do is provide data to the grid, enable the features you want through simple parameters and we will do the rest to ensure beautiful display and great performance. You can also tweak the visualization through templates and your own CSS styles. 

    Telerik UI for Blazor Grid
  • CSV Export

    The Telerik Blazor Grid now has the functionality to be exported to a CSV format. It is easily configured in the toolbar by adding a dedicated command button. After exporting, you will have all applied filters, sorting, paging, grouping and column ordering transferred to the CSV file. You have the option to export only the current page, or all the data.

    Telerik UI for Blazor Grid-CSV Export
  • Column Menu

    The Column Menu feature simplifies access to common operations and provides your app’s users with a convenient way to apply sorting, filtering, and toggle the visible and lock states of the columns from a central spot. You also have the ability to group columns within the menu and configure it further via the GridColumnMenuSettings tag.

    Telerik UI for Blazor Grid Column Menu
  • The Search Box is an additional method of filtering records in a Grid, complementary to the Grid Filtering options but much simpler. To add a Search Box to your Grid, simply add a GridSearchBox to its children. Once done, users will be able to type text to immediately and intuitively filter grid elements.

    Telerik UI for Blazor Grid Search Box
  • Multi-Checkbox Filters

    Through the Multi-checkbox Filters, users can easily filter Grid data by a chosen value. This type of filter functions similarly to Microsoft Excel filtering and has many applications—from finding all sales made by an employee to finding all inventory items in a given category.

    Grid - Multi-checkbox filter
  • Multi-Column Headers

    In many scenarios, your tables will contain columns that represent several parts of a whole. For example, you might have a First and Last name columns, both of which store information about the person’s name. In these cases, the Grid component provides multi-column headers to help you visually represent the relationship between these columns. 

    Check out the Blazor Grid Multi-Column Headers demo
    Telerik UI for Blazor Grid - Multi-column Headers
  • Row(s) Drag and Drop

    To facilitate reordering items in the Grid or moving rows from one Grid to another, the control supports dragging and dropping. Enable the RowDraggable attribute and this will add a special column at the beginning of the table for users to hold on to while dragging. 
    Telerik UI for Blazor Grid Drag & Drop
  • Loading Animation

    Sometimes it takes a while for your Grid to update some data on a heavily overloaded server. If you don’t want your users to stare at a blank screen during the operation, you can use the build-in Grid loading indicator to visually indicate that the data is being processed. The Grid is smart enough to show busy indicator when it detects detect a slow-running async data operation.

    Check out the Grid Loading Animation demo page for an example on how to implement it.

    Telerik UI for Blazor Grid-loading animation
  • Load Groups on Demand

    This time-saver feature is designed to enable you and your users to selectively process only a fraction of the information in your Grid that is needed at a given moment. If your Grid has grouping applied to it (either by the user or through the grid state) and the LoadGroupsOnDemand parameter is set to true, the Grid will collapse all groups by default and ask your data source for the data only when that specific group is expanded. If your groups are large, this one parameter can dramatically improve your performance and the discoverability of a specific group. 
    Telerik UI for Blazor Grid - Grouping Load On Demand
  • Customization Based on Screen Space

    Thanks to the Telerik UI for Blazor MediaQuery component, the Grid can be easily configured to accommodate a vast array of devices – you can hide or show columns depending on how much screen real estate you have available! Any customization option can be used together with the MediaQuery to serve as many users as possible. 
    Telerik UI for Blazor Grid
  • Multi-Column Sorting

    With the Grid SortMode property, you can enable data sorting based on multiple grid columns. The SortMode accepts two values:

    • Single (default value): Only one sort criteria can be applied to the data
    • Multiple: Sorting on multiple columns. Sorting on a column and then sorting another one applies both sort criteria in the specified order.
    Telerik UI for Blazor Grid Multi-column Sorting
  • Display aggregated results in the Grid footer template for each data-bound column, commonly referred to Grand Total. This is especially useful in finance apps or internal reports where you can quickly give a summary of the data. Both of those examples aggregate values of each column and can show custom content. The footer template will always remain visible regardless of the vertical scrolling of the Grid.

    Telerik UI for Blazor Grid Footer Template for Aggregates
  • Column Visible Property

    Use the Grid column Visible property to programmatically control which Grid columns are visible. When a column needs to stay hidden at all times, you can directly set the column property Visible to false. However, you can also dynamically manage the column’s visibility in other cases when you need to provide conditional visibility. Check out more code samples on how to control column visibility in the Telerik UI for Blazor Grid.

    Telerik UI for Blazor Grid Visible Parameter For Columns
  • Grid custom filter rows and menus

    Custom filter rows and Custom filter menus are two more ways to tailor the Grid for your specific needs. They provide you with the ability to replace the built-in filters on top of each column in the Grid with a more user-friendly filter for your specific case. For example, instead of the general built-in feature for numbers which can be overwhelming, you might want to simply give the user options to pick min and max values without too much thinking.

    Telerik UI for Blazor Grid Custom Filter Menu
  • Delete Confirmation

    When editing the Grid elements in Inline mode, the user can choose to delete a certain row. However, they might click the button by accident and end up losing important information. Thus, we have added a Delete Confirmation popup which asks the user whether they want to proceed deleting the record or cancel the action.  
    Telerik UI for Blazor Grid - Delete Confirmation
  • Grid Filtering

    When you are looking for a certain record, or for rows that match a given criteria, you need to filter the data set. The Telerik Blazor grid lets your users do that effortlessly. The two different filtering modes offer different experiences—the always available Filter Row lets them type and filter immediately, while the Filter Menu takes up less real estate and lets them build more complex queries. 
    Telerik UI for Blazor Grid Filtering Menu
  • Editing Data in Grid

    The Telerik Blazor Grid component lets your end users edit the data. They can alter or delete existing records or insert new ones—all the CRUD operations are conveniently exposed through events that give you the user action and the model, so all you have to do is add your business logic and call your data service. Excel-like editing is also supported in which the number of keystrokes is greatly reduced – hitting Enter will store the current cell value, move on to the next cell in the column, and automatically select its content so that the next keystroke will override it. 

    The grid also offers three built-in editing modes:

    • Popup

    • Inline where the entire row is being edited and saved at the same time,  

    • InCell which lets you quickly edit only a certain field and send up the changes. 

    All 3 editing modes offer integration with validation through the Blazor built-in validation and the Telerik UI for Blazor Validation Tooltip component 

    Telerik UI for Blazor Grid
  • Grid Grouping

    You can group the grid according to the values in different fields to see relationships between them, aggregates over the given groups and nest groups within groups to explore the data. Just set the Groupable parameter to true and you can simply drag the column headers to group by them. 

    Telerik UI for Blazor Grid Grouping
  • Customizing Grid with Templates

    The Telerik Blazor Data Grid lets you customize what renders in cells, editors and various headers and footers so you can tweak it according to your needs and to also show extra data. 

    You can define: 

    • Special content for the cells – from specific formatting for a string or number, to entire components like charts and tooltips can go into each data cell. 

    • Your own editors – while the grid offers built-in editors according to the field type, you can define your own where you can implement further logic, rendering and appearance. 

    • Column header – when the field name is not enough and you want to add something more – from multiline text, to actionable buttons. 

    • Column Group footer – a great place to add aggregates information (which the grid provides for you). 

    • Group header – more descriptions about the current grouping level, including data aggregates. 

    • The entire row rendering – you can render your own HTML, down to the <td> elements, instead of the grid. 

    Learn more in our Blazor Grid Templates documentation

  • Conditional Formatting of Grid Cells

    The Telerik UI for Blazor Grid component dispatches the OnCellRender event when any of the Grid columns is rendered. The event is raised for every cell in the column and is given information about the items for which the current cell is being used. Use this event to conditionally format the styling classes of the cell.

    Telerik UI for Blazor Conditional Formatting of Grid Cells
  • Conditional Formatting of Grid Rows

    The OnRowRender event is fired whenever a Grid’s row is rendered. It is called once per row and in the handler you receive information about the current item being rendered. Use this method to conditionally format the styling of different rows.
  • Grid Column Display Format

    The Grid can print any value type with a custom display format to improve the readability of values. The display format can be specified either by adding an attribute on the data member in the class or by adding an attribute to the GridColumn tag.

  • Grid support for dynamic ExpandoObject

    The Telerik UI for Blazor Grid can also use data from a weakly-typed ExpandoObject. This is often the case when connecting to a backend based on older technologies and usually makes integration much harder the Grid takes care of it.

  • Grid Virtual Scrolling

    Some users prefer to scroll through the data instead of using a pager. With large data sets, this can easily slow down your application. Telerik Grid avoids that by enabling Virtual Scrolling. It renders only the rows from the current page of data and swaps them as the user scrolls, instead of rendering a row for each and every item in the data source. You can even load on demand the next page, instead of providing all the data at once. 
    Telerik UI for Blazor Grid Virtual Scrolling
  • Grid Column Scrolling

    In addition to the row virtualization, you can add easily enable virtualization of the Grid columns. And the great thing is that you can have both rows and columns simultaneously virtualized for optimal performance when dealing with large volume of data rows and columns in your Blazor Grid.    

  • Grid Column Resizing

    You can define the desired width of each column in the grid according to the data you expect, or other business logic. Your users, however, may have a different preference, or a weird screen resolution, and they may want a new size for the columns. The Telerik Grid has you covered – it lets the users resize the columns and you can even store that state for each individual, so they don’t have to repeat it. 
    Telerik UI for Blazor Grid Column Resizing
  • Grid Column Reordering

    When you declare the columns in a grid, you would usually put the most important ones first. A user may have a different need, task or preference, though, and the Telerik Blazor Grid lets them rearrange columns to fit their needs. 

    Telerik UI for Blazor Grid Column Reordering
  • Grid row click and double click events

    Whenever a row in the Grid is clicked or double-clicked, the corresponding event is fired and you can handle it to do interesting things like showing a detailed view of that row in a separate control or  fetching/sending more data about this particular item to the server.

  • Grid Automatically Generated Columns

    To simplify Grid columns definition, you can benefit from the automatic column generation feature. For cases when you want to display a list of columns in a Grid that are an exact match to your data model you can visualize, update, delete and insert records without extra overhead – all you have to do is set the Grid AutoGenerateColumns parameter to “true”. 

    Grid automatically generated columns work well together with column virtualization in Blazor Grid.  

  • Grid Frozen Columns

    In a grid with many columns, the users often scroll to the left and right and want to keep certain important columns visible at all times – such as IDs, command column to edit, selection column, or anything else of value. The Telerik Blazor grid brings the Excel Frozen Columns feature to the web with even more flexibility – you can keep columns frozen in the beginning, at the end, and even columns from the middle of the grid can be always visible and stick to one end. 

    Telerik UI for Blazor Grid Frozen Columns
  • Grid State Management

    At the end of the day, people want to shut down their computers, then come back tomorrow exactly where they left off. The Telerik Blazor grid lets them have this experience in a web app by saving and loading its state from any storage. Every user action that changes the grid display (such as paging, filtering, even editing) fires up an event that you can use to record its state so you can restore it as-is when the user logs back in, or even on the click of a button. 

    Grid State also lets you invoke these operations from other places in your app logic. For example, if something else happens in the app, you can tell the grid to filter by a certain field and value, or to go back to the first page. 

    Grid State Management examples – persist (save and load), and change programmatically. 

    Telerik UI for Blazor Grid Persist State
  • Blazor Grid Nested Models

    Thanks to the out-of-the-box support of complex (nested, navigation) properties, the Telerik Blazor Grid can be bound to both primitive types and complex model objects. 

  • Grid Hierarchy

    The row has a lot of details, but not all of them are important. Hide them in the Detail Template so the user can expand the row and see them when needed, without cluttering the main table.  

    The hierarchy feature of the grid is flexible and lets you drill down into data, expand and collapse the rows you want to look into and show data on demand. You can devise any layout you want, and put a grid there to showcase hierarchical relationship between the nested grid and its parent row. 

    Telerik UI for Blazor Grid Hierarchy
  • Grid Export to Excel

    Users in both Blazor server-side and WebAssembly applications can easily export Grid data to Excel with a click of a button. The exported file will preserve the Grid settings, so that filtering, sorting, paging, grouping, column order and column size are applied to data in the xlsx document. The export allows developers to set the resulting file name and configuration of the data to be exported – current shown page or all pages in the grid.

    Export of Blazor Grid Data to Excel.

    Telerik UI for Blazor Grid Export-to-excel
  • Grid Paging

    Large data sets are commonly split into smaller pages of date for the convenience of your end users and to improve your app performance. The grid can do this for you automatically, just enable a single property. 

    Telerik UI for Blazor Grid Paging
  • Grid Row Selection

    When users highlight a certain row, you can use that information to show more data, other components or simply collect a list of their choices. The grid exposes all of this through single and multiple row selection modes, and also lets you select all items on the current page or across the entire grid, which comes in handy for batch operations like deleting many records at once, or moving data from one place (or state) to another. Select rows by clicking them or add a checkbox for selection to preserve the click interaction for cell editing.  

    The selected items offer a lot of flexibility – you can use two-way binding to predefine items or get your collection updated automatically; or you can consume an event so you can react to user activity and update your app. 

    Telerik UI for Blazor Grid
  • Grid Data Binding

    In the simplest case, you just point the data parameter of the Blazor Grid to your data collection and define the columns you want in it. The grid will do everything else for you (paging, sorting, filtering and so on). 

    Telerik UI for Blazor Data Binding
  • Bind Grid to DataTable

    The Telerik UI for Blazor Grid can also use data from a DataTable object. This makes it easier to connect with legacy code which is still using DataTables.

  • Grid Performance

    You can improve performance by loading only the current page of data on demand using an IQueriable collection powered by EntityFramework (for a server-side Blazor app), or implementing your own data operations through the OnRead event (applies to both WASM and server-side Blazor). The custom data loading also applies to all other grid features such as paging, filtering and virtual scrolling, so you can make the most efficient database queries. 

    Performance for Telerik UI for Blazor Components
  • Grid Globalization and Localization

    The Telerik Blazor Grid responds to the user culture automatically – for example, formats in numeric inputs and date inputs use the current user culture, and strings such as pager tooltips and command buttons’ texts can be easily translated. 

    Telerik UI for Blazor Globalization and Localization
  • Grid Accessibility and Keyboard Navigation

    Users with disabilities need to use your site as well, and the Telerik Grid component helps in that regard – it uses semantic markup and covers the current accessibility standards (including WCAG, Section 508 and WAI-ARIA attributes for screen readers). Moreover, you can navigate around the grid and invoke all actions with the keyboard alone. 

    Telerik UI for Bazor Keyboard Navigation
  • Grid Theming

    The Telerik Blazor Grid component has several built-in themes such as Default (our own styling), Material (based on the Material Design guidelines) and Bootstrap (which looks like the Bootstrap styling to integrate better). You can easily customize any of out-of-the-box themes, style a specific component instance or create new theme to match your colors and branding by using the Telerik SASS ThemeBuilder application
    Telerik UI for Blazor Grid Theming
  • Grid No Data Template

    The Telerik UI for Blazor Grid lets you define custom content which will be rendered when the component has no data to display for this specific row. The No Data Template will override the “No data” text and will display the content you have provided.  
    Telerik UI for Blazor Grid - No data template
  • Frozen Columns With Column Virtualization

    Columns can be frozen even if column virtualization is enabled! Imagine a Grid full of sales data for a shop which has been operating for 20 years – the first column may contain the list of items while all the others store sales on a monthly basis for each item. That’s 20 * 12 = 240 columns! Browsing this data is trivial if you virtualize the columns but freeze the item names – this way you users can easily check the sales for a specific month without performance hitches.
  • Keyboard Navigation with Column Virtualization

    This feature enables users to use keyboard navigation with virtual columns in the Grid component. As the standard shortcuts are still applicable, there are some differences. The Home and End buttons move focus to the first or last cell in the virtual column range for a cell not in edit mode. The combination of Alt + Home/End button results in moving focus to first/last cell in a row, also not in edit mode. Pressing F2 puts the row in edit mode, if inline edit mode is enabled and Tab focuses the next focusable element in the virtual column range.  
  • Fit Column Width To Content

    Columns can be automatically resized so that their width equals width of the widest cell in the column, similar to how MS Excel and other spreadsheets operate. 
    Telerik UI for Blazor Grid
  • Alignment of Cell Values

    The grid columns provide a way to specify horizontal alignment for the content through the TextAlign parameter. You can choose from Left, Right or Center column alignment to structure your data in the most convenient way for your needs.  

    Explore the Different Formatting Options

    Telerik UI for Blazor Grid - Alignment of Grid Cell Values
  • Pass Context to Command Buttons

    The Telerik UI for Blazor Grid component now allows you to have conditional command buttons depending on the properties of the row item. This is achieved by adding the current row item as a context (of type object) to the current ChildContent parameter. 

Next Steps

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