Dynamic Tooltip on DataGrid Cell

Radzen.Blazor Components
1

I try to place tooltip on Datagrid Cell. Value of tooltip should be value of another item of RadzenDataGrid datasource. After some investigation here I still haven't found any solution.

My Blazor code uses Template due to using MouseEnter event on column:

<RadzenDataGridColumn TItem="StavbaVv" Property="Ds_Drs" Title="Druh st." TextAlign="TextAlign.Right" Width="30px" HeaderCssClass="rz-background-color-success-lighter">
  <Template Context="stavby">
    <RadzenText MouseEnter="@(args => ShowTooltipDdrs(args,stavby.Ds_DrsTxt??"?"))">@stavby.Ds_Drs</RadzenText>
  </Template>
    <EditTemplate Context="stavby">
      <RadzenDropDown @bind-Value="stavby.Ds_Drs" Data="@drss" TextProperty="Name" ValueProperty="Code" Style="width:100%">
        <Template>
          @((context as KN_cis).Code) - @((context as KN_cis).Name)
        </Template>
      </RadzenDropDown>
    </EditTemplate>
</RadzenDataGridColumn>"

In C# code section I have:

void ShowTooltipDdrs(ElementReference elementReference, string dsdrstxt, TooltipOptions options = null) => tooltipService.Open(elementReference, dsdrstxt, options);

The event is fired, parameters are passed correctly, but I have no tooltip. ShowCellDataAsTooltip property is in default mode.
Where is problem?
Thanks for any help.

Summary

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2

Make sure RadzenTooltip or RadzenComponents is part of your layout as instructed in our Getting started:

image
image1920×1080 247 KB

3

Yes, my solution is under .Net 6 and in my Program.cs I have:

builder.Services.AddScoped<TooltipService>();

similar as other Radzen services (Notification, Dialog).
If I do not have I will not be able to use
@inject TooltipService tooltipService
in my razor page.

4

You misunderstood my reply, check it again. There are placeholders for special components like the tooltip that should be declared in the layout.

5

Thank you.
The problem was caused by a missing placeholder.
<RadzenTooltip/> in MainLayout.razor page.
Now I see a tooltip in a different color and frame type than a default tooltips in
other Datagrid cells.
Can I unify them somehow?