Passing a javascript array to a handler .ashx

[JJ]

I am using a handler (processImage.ashx) to display an image. The image is
displayed according to parameters passed in the querystring. The handerl is
called via some clientside javascript.

I want to send an array of unknown length to the handler. I am not sure
whether the querystring is the best place to do this. What's the best way to
send an array held in the client side javascript to the handler?

Thanks in advance,
JJ

[=?Utf-8?B?YnJ1Y2UgYmFya2VyIChzcWx3b3JrLmNvbSk=?=]

you can not post an image request, so the url is the only option other than a
prelimary ajax call. the url is restricted to about 2k. how you encode the
array depends on the array type. the most common is a array.join('|'), with a
matching split on the server side.

-- bruce (sqlwork.com)
"JJ" wrote:

I am using a handler (processImage.ashx) to display an image. The image is
displayed according to parameters passed in the querystring. The handerl is
called via some clientside javascript.

I want to send an array of unknown length to the handler. I am not sure
whether the querystring is the best place to do this. What's the best way to
send an array held in the client side javascript to the handler?

Thanks in advance,
JJ

[JJ]

How would I do the prelimary ajax call?

Thanks,
JJ
"bruce barker (sqlwork.com)"
<br*******************@discussions.microsoft.comwr ote in message
news:C8**********************************@microsof t.com...

you can not post an image request, so the url is the only option other
than a
prelimary ajax call. the url is restricted to about 2k. how you encode the
array depends on the array type. the most common is a array.join('|'),
with a
matching split on the server side.

-- bruce (sqlwork.com)
"JJ" wrote:

>I am using a handler (processImage.ashx) to display an image. The image
is
displayed according to parameters passed in the querystring. The handerl
is
called via some clientside javascript.

I want to send an array of unknown length to the handler. I am not sure
whether the querystring is the best place to do this. What's the best way
to
send an array held in the client side javascript to the handler?

Thanks in advance,
JJ

[Steven Cheng[MSFT]]

Hi JJ,

I think Bruce means you should pass the image urls(or any array parameters)
either through url querystring or through AJAX xmlhttp request. Directly
manipulate binary content of image is not quite supported in client script
and also not effecient to pass such large content frequently.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead
This posting is provided "AS IS" with no warranties, and confers no rights.
--------------------

>From: "JJ" <ab*@xyz.com>
Subject: Re: Passing a javascript array to a handler .ashx
Date: Tue, 20 Nov 2007 10:55:18 -0000

>How would I do the prelimary ajax call?

Thanks,
JJ
"bruce barker (sqlwork.com)"
<br*******************@discussions.microsoft.comw rote in message
news:C8**********************************@microso ft.com...

>you can not post an image request, so the url is the only option other
than a
prelimary ajax call. the url is restricted to about 2k. how you encode

the

>array depends on the array type. the most common is a array.join('|'),
with a
matching split on the server side.

-- bruce (sqlwork.com)
"JJ" wrote:

>>I am using a handler (processImage.ashx) to display an image. The image
is
displayed according to parameters passed in the querystring. The

handerl

>>is
called via some clientside javascript.

I want to send an array of unknown length to the handler. I am not sure
whether the querystring is the best place to do this. What's the best

way

>>to
send an array held in the client side javascript to the handler?

Thanks in advance,
JJ