Is it possible to pass a list/array of arguments to a JS function from C#?

Question

For instance Is it possible to pass the following parameters as arguments to a JS function from code-behind?:

ddlLines.Attributes.Add("onchange", "setPanel("
        + " '" + ddlAdd.ClientID + "', "
        + " '" + nCkPTitle.ClientID + "', "
        + " '" + manCkEntry.ClientID + "', "
        + " '" + nCkLabel.ClientID + "', "
        + " '" + txtRefNo.ClientID + "', "
        + " '" + TCEE.pval + "', "
        + " '" + TCEE.ptxt + "', "
        + " '" + ddlLines.ClientID + "' "
        + ");"

At this time my JS function argument list is as follows:

function setPanel(ddlClientId, lblClientId, lblManCLientId, 
    lblRefNo, altRefNo, altValParm, altTxtParm, ddlLinesClientId){
   ...
}

I would like to be able to dynamically send an indeterminate list of parameters as arguments to the JS function from the code behind.

I have researched the .apply() function, but have not been able to use it successfully.

Sky Fang · Accepted Answer · 2015-07-20 22:09:58Z

0

You just need to add [] ,it is means Array in js

ddlLines.Attributes.Add("onchange", "setPanel("
        + " ['" + ddlAdd.ClientID + "', "
        + " '" + nCkPTitle.ClientID + "', "
        + " '" + manCkEntry.ClientID + "', "
        + " '" + nCkLabel.ClientID + "', "
        + " '" + txtRefNo.ClientID + "', "
        + " '" + TCEE.pval + "', "
        + " '" + TCEE.ptxt + "', "
        + " '" + ddlLines.ClientID + "'] )"
        );

But I suggest that you can use json here,such as

ddlLines.Attributes.Add("onchange", "setPanel("
            + " {'aaaID':'" + ddlAdd.ClientID + "', "
            //...
            + " 'zzzID':'" + ddlLines.ClientID + "'} )"
            );

edited Jul 20, 2015 at 22:09

answered Jul 20, 2015 at 22:04

Sky Fang

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2 Comments

TheSchnitz Over a year ago

Ah okay, I am new to programming, but I have used .ajax() JSON successfully to send a parameter list from JS to C# code-behind. looks like this is similar. I am assuming I would then use the KVP values in my JS function , correct?

Alexei Levenkov Over a year ago

Note that there is no reason to use array as list of parameter (because it is already array on JavaScript side)... Options pattern is nicer, but still need proper encoding of parameters (which depend on framework used to render pages and hence not answerable in current state)

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