how to replace array with new array using ScriptManager.RegisterArrayDeclaration

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I am using

ScriptManager.RegisterArrayDeclaration

to pass an array from server side to be used in a java script function defined in external JS on the page.
My problem is that this is happening repeatedly on Timer_Click event.

so initially when i pass an array let suppose containing 161 in its index 0 it works fine. than on the next timer_click I have only 162 value in index 0 on server side. but when array is passed to JS, it appends the last passed array, thus making it contains 161 & 162.

How can i avoid this?? I want to update the previously paased array with new and not to append.

ANY help???

Posted 30-Dec-13 20:49pm

VICK

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Kornfeld Eliyahu Peter · Answer 1 · 2014-01-01T03:22:00

Solution 1

According to Microsoft there is no way to replace - only to add...

Quote:
The RegisterArrayDeclaration checks to see whether a registered array exists with the same name as the name specified in the arrayName parameter and, if so, adds the values specified in the arrayValue parameter. Because the underlying storage mechanism is based on an ArrayList, duplicates are allowed. If a registered array with the same name as the arrayName parameter does not exist, it is created and the values in the arrayValue parameter added to it.

http://msdn.microsoft.com/en-us/library/system.web.ui.clientscriptmanager.registerarraydeclaration(v=vs.110).aspx[^]

Posted 1-Jan-14 3:22am

Kornfeld Eliyahu Peter

Comments

VICK 2-Jan-14 5:11am

Thanks for your precious time. but is there any other way to perform what I want??

Kornfeld Eliyahu Peter 2-Jan-14 5:18am

Can you explain more on what you try to do?
There is any connection between the original array the new send on timer tick?
Did you considered to use aspx page as the source of your js array?

VICK 3-Jan-14 2:13am

on aspx page a timer is placed for an update panel. and inside that Update Panel there is a repeater which is getting bind with the fresh data on each timer click. and based on that fresh data, I have to remove the div's from the page, for example initially repeater had div 1, div 2 and div 3.. and on timer tick ,, now repeater have only div 1 and div 3, so I want to pass the div1 and div 3 to the array on aspx page.. so that except those div's other could be rmoved...

M I clear enough???

Kornfeld Eliyahu Peter 4-Jan-14 14:57pm

Isn't your repeater is a server side? So bind it to some data source and refresh that data source on timer...

VICK 6-Jan-14 5:46am

AHHHHH.. you didnt understand me.. I am refreshing the datasource on timer tick and rebinding the repeater as well , and it is working fine too. I just have to send the data which is in repeater to the client side so perform some client side functionality.

Kornfeld Eliyahu Peter 6-Jan-14 6:08am

Now I understand you much better... :-)
You mean extra data that are not on the controls inside the repeater?
Can you add this extra data as additional attributes to the controls like data-x-foot-size=''?

VICK 7-Jan-14 0:00am

yes.. extra data.. you can say a datatable consist of dat extra data..

Further now i m unable to understand you.. Can you add this extra data as additional attributes to the controls like data-x-foot-size=''?...... :(

Can you explain more???

Kornfeld Eliyahu Peter 7-Jan-14 2:15am

If the extra data is small size (2-4 fields) you can add it as html attributes.
For example you have in your repeater a div holding the data to display you can add attributes to it (in a loop) of the new html 5 format - data-{some-name} = '{value}'.
However if you have a lot of data it not a good option.
What you can do is add some hidden fields to your repeater and bind them to the data you need, so it will be updated wit hthe repeater itself...

VICK 7-Jan-14 7:14am

hmmm. can u provide me some link regarding all this with some example???

Kornfeld Eliyahu Peter 7-Jan-14 7:27am

Inside the ItemTemplate of your data repeater add elements like this:
<input type="hidden" value="<%# DataBinder.Eval(Container.DataItem, "some-data-to-send-to-client") %>"/>
Add as much hidden field as you need...

VICK 8-Jan-14 4:18am

Well thanks Kornfeld... :)

Kornfeld Eliyahu Peter 8-Jan-14 5:05am

You welcome...