Only load detail when expanded

Question

I have a master-detail grid setup. I only want the detail to be loaded after the expand button is clicked since loading each detail when the grid is created would seriously impact performance. Is this possible?

Prathap Senthil · Answer

Hi Marc,

Greetings from Syncfusion support

Using the dictionary variable, which
is updated when clicking the expand icon, we have rendered the subgrid. So that
the subgrid will be displayed for each row based on the unique values. so that
when expanded, the detail will load. We used the new events support to accomplish
your request for Details Expanding and Details Collapsing. Kindly check the
sample solution attached for your reference.
New Events Provided-https://blazor.syncfusion.com/documentation/release-notes/20.3.57?type=all#grid

Event name

Description

DetailsExpanding

An Event that is raised when Detail template row is clicked to
  expand, you can also cancel this action by using Cancel property provided in
  the event args.

DetailsExpanded

An Event that is raised after Detail Template row is expanded.

DetailsCollapsing

An event that is raised when Detail Template row is clicked to
  collapse, you can also cancel this action by using Cancel property provided
  in the event args.

DetailsCollapsed

An event that is raised after Detail Template row is collapsed.

Regards,
Prathap SAttachment: DetailTemplate_576bf1ba.zip