pass js array to asmx c# method

Hi all,

I am trying to pass a multi layered array in the form;

array[<string>, array[<string>, <string>]]

using ajax to a c# asmx method. I catch the element successfully like so;

public static bool UpdateSheet(List<object> updates)
{
...
}

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and I cast as follows;

List<KeyValuePair<String, List<KeyValuePair<String, String>>>> current = (List<KeyValuePair<String, List<KeyValuePair<String, String>>>>)updates[i];

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however its throwning an error any reasons why?

thanks in advance.
flynnyAsked:
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Chris WatsonSoftware DeveloperCommented:
What is the exception you're getting?
0
flynnyAuthor Commented:
Internal Server Error:error:{"Message":"Unable to cast object of type \u0027System.Object[]\u0027 to type \u0027System.Collections.Generic.List`1[System.Collections.Generic.KeyValuePair`2[System.String,System.Collections.Generic.List`1[System.Collections.Generic.KeyValuePair`2[System.String,System.String]]]]\u0027.","StackTrace":"   at AdminFunctions.UpdateStyleSheet(List`1 updates)
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flynnyAuthor Commented:
sorry in fact looking at my code i think it should be as follows;

KeyValuePair<String, List<KeyValuePair<String, String>>> current = (KeyValuePair<String, List<KeyValuePair<String, String>>>)updates[i];

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however, this is throwing the following error;


System.InvalidCastException
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arnoldCommented:
The difficulty in analyzing what you are experiencing deals with the means by which the data is being passed. The method used to transfer data.

One option might be to pass the data as an xml stream/structure.
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flynnyAuthor Commented:
HI Arnold,

passing as xml would be an option could you provide an example of doing this?
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arnoldCommented:
Your javascript will have to create the xml structure

Alternatively, you can use the data you have, but you have to parse convert the data versus relying on a function which does not seem suitable to the formatting you are using.
<array>
     <1>value</1>
     <2>value</>
</array>

There are several examples if you search for javascript xml to array and the reverse .

Your existing setup might be missing a single step to convert any URL or HTTP encoding which  could be the cause for the conversion error.
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GaryCommented:
I've requested that this question be deleted for the following reason:

The question has either no comments or not enough useful information to be called an "answer".
0
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