How to force an update to the Grid and display a Notification when the DataSource changes

[Jim]

I am using the Telerik Grid on a dashboard-type of web page in ASP.NET Core 2.1 (with Razor pages). I need to have the contents of the Grid updated when the data presented in the Grid changes. In case there are better solutions, I will give a bit more detail.

I have 2 web apps. One, let's call it the child web app, will send a notification via SignalR to the main web app, called the parent. When the parent app receives the notification via SignalR I want to update the Telerik Grid as well as display the message contained in the SignalR notification in a Telerik Notification. 

I know that I can use SignalR directly with the Grid, but I don't see any way to preserve the data that arrives via SignalR.  I need to save the data that arrives in the SignalR message.

So, I need to do this:

1. Force the Grid to re-read and display the data when the web app receives a SignalR notification.

2. At the same time display a Telerik Notification.

Again, this is in an ASP.NET Core web app with Razor pages using .NET Core 2.1

 

[Konstantin Dikov]

Hello Jim,

If the Grid is using AJAX binding, when you receive the notification you can call the "read" method of the Grid's DataSource, which will make another request to get the new data:

$("#yourGridID").getKendoGrid().dataSource.read();

As for the notification, you can use the "show" method either before or after calling the "read" method of the DataSource:

• https://docs.telerik.com/kendo-ui/api/javascript/ui/notification/methods/show

Hope this helps.


Regards,
Konstantin Dikov
Progress Telerik