pushUpdate fails for Grid DataSource

[Steve]

Hi,

Im using a grid to display near real-time data from c#/ASP.Net server side via SignalR - adding/updating data rows with pushUpdate().

I already have one grid working in this manner but I haven't been able to work out why updates to a new grid are failing with the error:

TypeError: target.accept is not a function
   at init.pushUpdate (kendo.all.js:6765)

In the following line (kendo.all.js:6762) - I noticed that model.id was undefined:

var target = this.get(model.id);

I have replicated this on dojo. It appears the grid/datasource doesn't handle the initial data, then does reflect the first update, but not the second.

 

On my machine, I'm using the following:

Kendo UI for jQuery R3 2019

Windows 10

Firefox 69.0.3
Chrome 77.0.3865.120

jQuery 3.3.1

[Steve]

Apologies, it was just a typo - "datasource" instead of "dataSource" - cant believe I didnt spot that.

[Tsvetomir]

Hi Steve,

I have investigated the provided code snippets and it appears that everything else is configured accordingly. It is worth mentioning that when the casing or syntax of the grid's declaration is not correct, the grid would simply ignore it. And its contents would not be taken into consideration. That is why the model.id would return undefined.

In case there is something else that I can help with, feel free to contact me.

 

Best regards,
Tsvetomir
Progress Telerik

[Steve]

Thanks Tsvetomir.