Load Data during scroll

[Ludovic Gerbault]

Hi

I'm currently having troubles with the RadGridView performances. I tried almost everything I could think of.

What I'm trying to do is load variable amount of data (from 5 rows to several thousands depending on my request) onto a RadGridView.
The structure of the loaded data is also completely different each time (different number of columns or type of data)

I'm loading my data from a PostgreSQL database using WCF service, but the grid takes between 2 and 6 seconds to display the data, which isn't acceptable for my purpose.

So I had an idea on how I could fix my problem.

I thought that I could try to load only the first 20 or 30 rows at a time, and when I scroll down (I'm on deferred mode), I would call my webservice to load the data corresponding to my scrollbar position.

But unfortunatly, after several attermpts, I couldn't find a way to achieve this.
So I'm asking if you'd have any way to perform such coding. (btw, since everything in my application is dynamic, every treatments are code-behind based.

Regards
Ludovic

[Vlad]

Hi Ludovic,

You can find such demo here:
http://demos.telerik.com/silverlight/#GridView/Performance/ServerSide

Regards,
Vlad
the Telerik team

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[Ludovic Gerbault]

Hi

This isn't exactly what I need, but I might be able to use it as a start point.

Thanks for that.

If anyone passing by has any idea, I'd be thankful for sharing it.

Regards
Ludovic