What is the best way to supply arguments to a generic handler function?

How can I send parameters to a generic handler in Asp.net using JavaScript/jQuery?

I am working on a jQuery plugin called ajaxfileupload that utilizes a generic Handler. I need to pass certain arguments from the page using jQuery or JavaScript, such as Dynamic Save Path, autogenerated filename, etc.

Answer №1

Here is an example of how it works:

$.ajaxFileUpload(
{       
    url: 'MyHandler.ashx?filename=test.png&path=../test/Images',
    secureuri: false,
    fileElementId: 'fileToUpload',
    dataType: 'json',
    data: { name: 'john', id: '123' },
    success: function(data, status) {
        if (typeof (data.error) != 'undefined') {
            if (data.error != '') {
                alert(data.error);
            } else {
                alert(data.msg);
            }
        }
    },
    error: function(data, status, e) {
        alert(e);
    }
})

Within the Generic Handler:

public void ProcessRequest(HttpContext context)
{
    string fileName = (string)context.Request["filename"];
}

Alternative Solution

var filename = "test.png";
$.ajaxFileUpload(    
{       
    url: 'MyHandler.ashx?filename=test.png&path=../test/Images',
    secureuri: false,
    fileElementId: 'fileToUpload',
    dataType: 'json',
    data: { name: 'john', id: '123', filename: filename },
    success: function(data, status) {
        if (typeof (data.error) != 'undefined') {
            if (data.error != '') {
                alert(data.error);

            } else {
                alert(data.msg);

            }
        }
    },
    error: function(data, status, e) {
        alert(e);
    }
})

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