Feature: DataGrid Self-Reference Hierarchy

[Gareth064]

Would it be possible to add a new feature to the DatGrid which allows you to render records in a Hierarchy (Parent/Child). Basically a tree type DataGrid.

I hate referencing other Libraries in these conversations, but this is the only other example I could find that demonstrates what I mean.

This is from Radzen and they named it "Self-Referencing Hierarchy"

As you can see the nested/child data is just displayed, aligned to the same columns as the main DataGrid etc.
With a little indent there on the first column to demonstrate that its a child of the row above it.

[stsrki]

I think you're looking for the detail-row feature of DataGrid. You can see it here https://blazorise.com/docs/extensions/datagrid/templates/detail-row

[Gareth064]

Thanks for the response, but that's not the same type of feature. That just lets you render some under the DataGrid row.

The behaviour I am talking about is like a task list where each task can have sub/child tasks, and those can have sub/child tasks etc.

All of the same data type so that each row fits into the same columns of the DataGrid. Its not about rendering random content under a row.

The theory is that when a row has child rows, they are rending into the same DataGrid structure, they work with the main DataGrid header sorts and filters etc.

[stsrki]

We don't support that feature. However, it seems very similar to our detail row. You could make it in a similar way by adding the DetailRowTemplate and the filtering on currently expanded or selected row. The filtered data would be assigned to the nested DataGrid in DetailRowTemplate.

To make it even better, you can remove padding and margin for the nested row or table.

[Gareth064]

I have tried that before with other libraries, which have this row detail feature, same as yours, and the problem is that you never can get the column widths from the parent DataGrid and the Children DataGrid (remembering it can nest many times) to be the same.

But oh well. My search continues.

[Gareth064]

I was working on this feature for the MudBlazor library, but they have just said that its unlikely they would accept a PR for it. But here is a visual demonstration of the desired outcome.

[stsrki]

I cannot promise it. But I can consider adding it for the coming 2.0 release. We'll see how it goes. There are still some more urgent features we're working on.

[Gareth064]

No worries. It's a datagrid feature I thought would have been very useful for lots of use cases and was surprised to find only one library that offered it. I look forward to anything you can do in this space in the future.

[stsrki]

Coming in 2.1 #6400