JQuery Ajax Get passing parameters

I am working on my first MVC application and am running into a bit of a problem. I have a data table that when a row is clicked, I want to return the detail from that row. I have a function set up as:

function rowClick(item)
{
    $("#detailInfo").data("width.dialog", 800); 
    $.ajax({
        type: "GET",
        contentType: "application/json; charset=utf-8",
        url: "<%= Url.Action("GetDetails", "WarningRecognition")%>",
        data: "",
        dataType: "json",
        success: function(data) {//do some stuff...and show results}
 }

The problem I am running into is the passing of the "item". I calls the Controller function that looks like this:

public JsonResult GetDetails(string sDetail)
    {
        Debug.WriteLine(Request.QueryString["sDetail"]);
        Debug.WriteLine("sDetail: " + sDetail);
        var myDetailsDao = new WarnRecogDetailsDao();

        return new JsonResult { Data = myDetailsDao.SelectDetailedInfo(Convert.ToInt32(sDetail)) };
    }

But it never shows anything as the the "sDetail". It does hit the function bu开发者_开发知识库t nothing is passed to it.

So, I have read where you pass the parameter via the data but I have tried every combination I can think of and it never shows up. Tried:

data: {"item"}
data: {sDetail[item]}
data: {sDetail[" + item + "]}

Did you try { sDetail: item }? The data item name needs to match the action argument or asp.net mvc won't know how to wire things up properly.

All i know is the format must be:

var data = '{"sDetail":"item"}';

It doesn't look like your data is in the format. Have you tried that combination?