I am trying to add aggregation to the grouping and display them in the group footers. I am successfully returning the aggregated values but they are not displayed in the GroupFooterTemplate.
Hi Telerik team,
When I want to bind the Blazor Grid to an ExpandoObject I need to assign the FieldType. I know I have to use non-nullable types.
But I want to use nullable types (for example int?) to have a blank cell within the Grid when there is no value for it. With "typeof(int)" instead of "typeof(int?)" every empty cell shows "0" which I don't want.
Is there any chance to let FieldType accept nullable types?
Best regards,
Rayko
Using mobile browser (Safari iOS or Chrome Android)
Go to demo grid page
https://demos.telerik.com/blazor-ui/grid/overview
Click any grid's filter menu which contains text field
Try to enter text into textbox.
The filter menu automatically closed, so you can't enter anything
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ADMIN EDIT
this happens because the keyboard pops up, changes the screen size and may even scroll the page, and both of these events hide the popup menu.
A workaround could be using the filter row mode, with the caveat that it takes up more space on the initial rendering, and that filtering happens immediately.
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Add a setting similar to the AllowUnsort so that I can disable the unsorted state of the Grid.
ADMIN EDIT:
Here is how to achieve this with the Grid state.
I am using this sample to implement server-side grouping:
https://github.com/telerik/blazor-ui/tree/master/grid/datasourcerequest-on-server/WasmApp
Now I need Aggregate sum for the price in the GroupFooterTemplate. When I add aggregates, exceptions are thrown if a group footer uses the aggregate value, if not - the grid simply does not look grouped.
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ADMIN EDIT
The issue stems from the inability of the System.Text.Json to deserialize interfaces - there are a couple of interfaces in the datasource request and data source result related to aggregates. Preliminary review indicates that perhaps some or all of them might be changed to, for example, Dictionary<string, object> from the current IDictionary<string, object>, or perhaps the framework might "learn" to deserialize interfaces.
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I need to know which cell the user right clicked on so I can adjust my context menu. I need the cell value, the row model and the field of the column.
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ADMIN EDIT
The following KB article shows a solution you can use immediately: https://docs.telerik.com/blazor-ui/knowledge-base/grid-which-cell-context-menu.
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Hi.
Is it possiblle add a contextual menu on a grid row and choose actions for that row?
Thanks.
The idea of the feature is to be able to customize the list of FilterOperators displayed in the list of the FilterRow and FilterMenu.
FilterRow UI element
FilterMenu UI element
Please expose an option to configure the field delimiter for CSV export. I want to set semicolon as field delimiter instead of a comma.
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ADMIN EDIT
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Internally the Grid uses SpreadStreamProcessing library to perform the export. That said, a necessary prerequisite to implement the current enhancement is that SpreadStreamProcessing supports settings for changing the delimiter when exporting to CSV. You may vote for the item and follow it to get status email updates.
For the time being, you may customize the exported file to set the desired field separator as suggested in the Grid CSV export - change the comma field delimiter knowledge base article.
The select-all functionality of the Grid is slow in WebAssembly apps, when SelectAllMode="GridSelectAllMode.All".
A possible workaround is to use a CheckBoxColumn HeaderTemplate.
We have a Blazor Telerik Grid with DetailTemplate. One of the columns in Master/Parent is an editable column. The grid is set with "Incell" for property 'EditMode'.
Issue:-
When the editable column is clicked for editing, the entire grid row(with detail) is collapsed if the row is in expanded mode. Once editing is completed, the grid goes back to its previous state(expanded).
Editing parent column in collapsed mode, works without any issues.
Would like to know if I can keep the grid row in expanded mode while editing(ie. keep the original state) if its in expanded state.
If not, is it the default behavior of hierarchy grid and how can it be overridden?
Note - Tried with OnEdit and OnRowClick events, but the collapse happens before the respective event handler call.
Thanks in advance !
Sreeni
In a filterable Grid, if a column is not bound to a field from the model the Grid uses, it throws with:
Error: System.ArgumentNullException: Value cannot be null. (Parameter 'nullableType')
Reproduction: https://blazorrepl.telerik.com/GyEUlFEs04AUJoJ601.
The issue is reproducible :
- For `FilterRow` - on initialization even if the column is not filterable.
- For `FilterMenu` - on initialization when the column is filterable.
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ADMIN EDIT
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A possible workaround for the time being is to set the FieldType of the column: https://blazorrepl.telerik.com/wSugvFui10jhcpZy00.
Please add a property to the grid that lets me specify a debounce time for filtering. This way I can (for example) set the debounce time to 500(ms), and then only have the grid filter (which is slow) when the user stops typing (it current takes about 300ms per keypress anyway).
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ADMIN EDIT
We are reopening this feature request because it can make sense for the FilterRow filter mode as an out-of-the-box feature, even if it can be achieved right now with a bit of application code (example).
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