Programmatically Scroll GridView Control

I have an AJAX enabled web form with several data-filled GridView controls. The users accessing this web app will navigate the site via touch-screen monitors (i.e.: no mouse). As a result, I need an easy way for them to scroll the GridViews when the data is not visible. I want them to click on a button, which will then accordingly scroll the grid up or down. I have tried all the various combinations of the suggestions that I could find:

GridView.Rows(20).RowState = DataControlRowState.Selected

and

GridView.Rows(20).Focus()

and

GridView.SelectedIndex = 20

and

'Set focus to a hidden button control (column)
GridView.SelectedRow.Cells(5).Focus()

If I could set focus to a particular row, I think it should scroll to show that row. This would be fine, but nothing seems to work. Anyone have any suggestions on how I could programatically scroll a GridView control?

Thanks!

Hi AxeRose,

Did you find any solution for this problem?

I have asimilar purpose and meantime I don't have no idea, how to do this.

No, I never found a solution. I ended up using Paging instead -- which works fine for my situation.

Good luck!

I do not know if this works (and probably only in IE or in everything but IE ) but there is a javascript function called scrollIntoView that you could try. Just a suggestion.

Seehttp://forums.asp.net/t/1162570.aspx

You can use the JavaScript function: scrollTo(...)

-Damien

<script type="text/javascript">
var prm = Sys.WebForms.PageRequestManager.getInstance();

prm.add_beginRequest(beginRequest);

function beginRequest()
{
prm._scrollPosition = null;
}
</script>

http://forums.asp.net/t/1156877.aspx

push data to client/ keep checking the server side for any update to load

hi..

Im developing a web application to be used over the internet (not entranet) that means I have unknown of users accessing my web site.

I need to keep checking the server side every 30sec by creating hidden iframe to keep submiting to the server and check for specific updates( such database table). I think this way will reduce the performance of the server and not accepted!

is it true as I think? there is any other technique to this? is there some AJAX control to use instead?

note: Im fetching a small amount of text from the server

It really depends on your system and the expected number of users. Of course, every time you poll the server it takes some performance but in many cases the rewards outweight the performance hit.There are a lot of sites that do this and its not a huge performance hit if you are just retrieving a small amount of text. I would say go for it if you have the capacity.

Take a look at this: http://encosia.com/index.php/2007/07/25/display-data-updates-in-real-time-with-ajax/

The page method call for polling keeps the traffic level very low, compared to other techniques.

push message to user

Hi, I would like to know how do i push a message to multiple users in asp.net atlas?

I would like to enter a message then click send and it would display on multiple users computers in a box that would appear within a webpage.

This would be used to alert users of network issues.

thanks

Kunal

You could use theTimer control:

thanks, is there any other controls or ways to push the content, i have heard of ajax comet.

I'm afraid that you cann't do this in another way, The Ajax isn't a kind of "Server push" technology.

question about updateprogress control

Hi Everyone,

I'm building my first pages with AJAX. I have added a two updatepanels. One has the selections for my users searches, the other the viewgrids with the information they get back. It all works great. One option in for the viewgrids is to have the first column show as a link, and that brings back another smaller grid with the detail list for that selection they've clicked on. Works great -- brings back the info. I've added a updateprogress control to let them know the page is working when the click and it works great. Only problem I am having is that the updateprogress control is up above my main grid. If they are near the top, they see it, but if they are further down the page, they won't see it, plus they won't see the details grid when it is done building. Is there any way I can bounce them to the top of the report? Some sort of repositioning? How is this normally done?

thanks!

jekerry

You can try to use AlwaysVisibleControl, I think it will help you.

http://ajax.asp.net/ajaxtoolkit/AlwaysVisibleControl/AlwaysVisibleControl.aspx

That looks really good, only problem is that I am not sure how to get it added to my project! I have downloaded the toolkit to a folder on my harddrive, but have to admit I am not sure what do past that step.

thanks,

jekerry

Hello, please take a look athttp://ajax.asp.net/ajaxtoolkit/Walkthrough/Setup.aspx

Thank you! Just what I was looking for but somehow hadn't stumbled across.

jekerry