Nullabletype error DataGrid with Update 2.68.6- 2022-04-27

Radzen Studio Blazor Server
1

Hi ,

After updating to Radzen version [2.68.6- 2022-04-27] some of my pages with a DataGrids do not render on desingtime showing following error/tekst instead of the DataGrid component.

image

I have reverted back to version 2.68.5, the DataGrid functions ok in this version.

Regards
Mehmet

2

The provided information is not enough to reproduce the problem, we will need minimal DataGrid declaration repro.

3

I’ll update tomorrow and provide the needed info to reproduce.

4

Same issue for me. 3.18.4 was the last working version for me.

Error :
System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'IServiceProvider'.

Definition :

<RadzenDataGrid @ref="rigGrid"
                AllowFiltering="true"
                AllowPaging="false"
                PageSize="50"
                AllowSorting="true"
                Data="@_rigs"
                TItem="Data.ORM.Rig">

    <Columns>
        <RadzenDataGridColumn Width="50px" TItem="Data.ORM.Rig" Title="Id" Filterable="false" Sortable="false" TextAlign="TextAlign.Center">
            <Template>
                @context.Id
            </Template>
        </RadzenDataGridColumn>
        <RadzenDataGridColumn TItem="Data.ORM.Rig" Title="Name / Abbrev">
            <Template>
                <h5 class="mt-1 mb-0">@context.Name</h5>
                <p class="m-0" style="font-size: 0.8em;">@context.NameAbbrev</p>
            </Template>
        </RadzenDataGridColumn>
        <RadzenDataGridColumn TItem="Data.ORM.Rig" Property="Owner" Title="Owner" />
        <RadzenDataGridColumn TItem="Data.ORM.Rig" Property="Type" Title="Type" />
        <RadzenDataGridColumn TItem="Data.ORM.Rig" Property="Offshore" Title="Offshore" />
        <RadzenDataGridColumn TItem="Data.ORM.Rig" Property="AirGap" Title="Air Gap (m)" FormatString="{0:n2}" />

        <RadzenDataGridColumn Width="160px" TItem="Data.ORM.Rig" Property="Id" Title="Actions">
            <Template>
                <RadzenButton ButtonStyle="ButtonStyle.Info" Icon="edit" Class="m-1" Click=@(() => EditRigAsync(context.Id)) />
                <RadzenButton ButtonStyle="ButtonStyle.Danger" Icon="delete" Class="m-1"
                              Click=@(args => ConfirmDelete($"You are deleting Rig : {@context.Name}" ,context)) />

            </Template>
        </RadzenDataGridColumn>
    </Columns>
</RadzenDataGrid>
5

This is not the same exception as the one reported in the beginning of the thread.

6

Hi ,
Update on Nullabletype error on DataGrid and not displaying the DataGrid on designtime ( runtime works ok ) with 2.68.6. how to reproduce .

On my DataGrid I have one column with not reference to a database field ( so no model property selected). the value for this column is dependent of a value of an other column and set in the template .
So in the the template field the code is :

@if (data.unit == "ha"){
<span>@data.area</span>
} else if (data.unit == "m") {
<span>@data.length</span>
} else if ( data.unit == "st") {
<span>@data.quantity</span>
}

When the "Filterable" option is checked then the DataGrid does not render and displays the error tekst instead. Once I un-checked the "Filtrable" option the DataGrid displays and no error tekst.

image

Do not know if this is a bug or just something that was working without an issue before the update and now has to be properly addressed ?

Regards.
Mehmet

7

Hi @mcanavar,

I was able to reproduce it - fix will be part of our next update early next week.

1 Like