dataGrid.View

Radzen.Blazor Components
1

Hi
I have a datagrid without paging.

<RadzenDataGrid @ref=dataGrid Style="height: 420px" Data="@dzialList"

After adding the row, I reload the data and call the javascript, which sets the visibility of the highlighted row by reading its position in the list.
This works great for editing, but after adding a row and reloading the data, dataGrid.View.ToList() does not contain the new row yet. Despite the orders
await dataGrid.Reload();
StateHasChanged();
After the procedure is completed, the new row is visible in the grid, but scrolling did not work.


-> Adds row

 dynamic dialogResult =
         await DialogService.OpenAsync<DzialDialog>(editName, new Dictionary<string, object>() { { "id", 0 }, { "viewMode", false } },
         new DialogOptions() { Width = "700px", Height = "500", Resizable = false, Draggable = true });
 if (dialogResult != null)
 {  
dzial = (Dzial) dialogResult;
var query = planData.nxPlanowanieDataContext.Dzials.Where(x => x.IdDzial > 0).AsQueryable();
//...
dzialList = query.ToList();   
await dataGrid.Reload();
StateHasChanged();

//Now try find dzial in dzialList
int index = dataGrid.View.ToList().IndexOf(dzial);
//The new line is not in the list

Thans
Maciej

2

Better use some key property to find what you are looking for since IndexOf(), Contains(), etc. will unable to locate object in a list with different hash even if all property values are the same.

3

The problem is that there is no added row in the dataGrid.View list.
Datasource of DataGrid - dzialList has e.g. 20 elements including a new row, and dataGrid.View still has 19.

4

If it’s not part of the View the item is not part of the Data as well. You can check our code for reference.

5

The new row is in the list, but only when you return to view.

dzialList = query.ToList();   // is that enough?

// Here dziaList has 20 items

await dataGrid.Reload();
StateHasChanged();

//Here dataGrid.View has 19 items
int index = dataGrid.View.ToList().IndexOf(dzial);
//After return from procedure, the new row is visible

[/quote]

thanks
Maciej