Custom Viewer for datatable / dataset not working in F# debugger

[smoothdeveloper]

Repro steps

In Visual Studio (2022 here)

open System.Data

let table = new DataTable("test")
table.Columns.Add("a", typeof<string>)
table.Columns.Add("b", typeof<int>)

table.Rows.Add("a",1) |> ignore
table.Rows.Add("b",2) |> ignore

table

• debug the script till point there is one record in the table
• after hovering on table symbol, click on view

Expected behavior

I would like it to work the same as in C# or VB.NET debugger, it should show what is described on https://docs.microsoft.com/en-us/visualstudio/debugger/dataset-visualizer-dialog-box?view=vs-2022

Actual behavior

It shows

Could not load this custom viewer.

Known workarounds

Not found.

Related information

• Windows 11 Pro build 22598.200
• VS 2022 17.2.0
• .NET Framework 4.8

[psfinaki]

@smoothdeveloper this can be closed now, right?

[smoothdeveloper]

@psfinaki 100% although I was just waiting to try it out in a future preview release.

I think it doesn't matter, so closing and will reopen if a future preview doesn't have it in a while.