asp.net - How to pass value to javascript from code behind page? -

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i have web application want call 1 method on body onload method.

i have method 

<body id="pageid1" onload="setupfeaturedproperty(1,['http://www.brightlogic-estateagents.co.uk/mrus/upload/918-1.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/918-2.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/918-3.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/918-4.jpg']);setupfeaturedproperty(2,['http://www.brightlogic-estateagents.co.uk/mrus/upload/665-1.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/665-2.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/665-3.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/665-4.jpg']);setupfeaturedproperty(3,['http://www.brightlogic-estateagents.co.uk/mrus/upload/38-1.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/38-2.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/38-3.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/38-4.jpg']);setupfeaturedproperty(4,['http://www.brightlogic-estateagents.co.uk/mrus/upload/122-1.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/122-2.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/122-3.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/122-4.jpg']);setupfeaturedproperty(5,['http://www.brightlogic-estateagents.co.uk/mrus/upload/1076-1.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/1076-2.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/1076-3.jpg', 'http://www.brightlogic-estateagents.co.uk/mrus/upload/1076-4.jpg']);">

and arguments of these method can change in after time.

i want pass argument when page loaded.

i have tried lot of method pass argument code behind page page it's not working. please let me know better solution this.

thanks

use this:

page.clientscript.registerstartupscript(this.gettype(), "myscript",getscript(),true);

and then:

private string getscript() {   return "setupfeaturedproperty(etc,etc,etc);"; }

if using updatepanels use scriptmanager class instead of page.clientscript


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