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n/a asked on 18 Nov 2020, 08:14 AM

Hello.

 

I have two questions.

- Is it possible to calculate server side aggregation ?

- Can we only display a global aggregation (total) but not in the TreeList (sub-total)?

 

Thank you.

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Georgi Denchev
Telerik team
answered on 20 Nov 2020, 06:34 PM

Hello Jérôme,

Thank you for contacting Telerik support.

In ASP.NET Core the ServerOperation option is turned on by default. This means the aggregates are calculated on the server and not on the client.

As for the other question, you can utilize the Expand event of the Treelist and hide the footers of the child elements. This way you will only see the footer of the main element.

.Events(ev => ev.Expand("onExpand"))

<script>
function onExpand() {
                      let treelist = this;
                      // Get the number of the last footer.
                      let lastFooter = $(".k-footer-template").length - 1;
                      
                      setTimeout(function() {
                        // Hide every footer except the last one.
                      	treelist.tbody.find(".k-footer-template:not(:eq(" + lastFooter +"))").hide();
                      }, 10)
}
</script>

The setTimeout function is needed because the child footers are rendered after the expand event is triggered.

Here is a live dojo example that demonstrates this functionality.

Let me know in case I misunderstood any of your questions.

Best Regards,
Georgi Denchev
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