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Dear Folks,

Please tell me how to send the file from JQuery to C#.

Below is my code

JavaScript
$('#btnUpload').click(function () {
            $('#fileUpload').trigger('click');
         });
         $('#btnSave').click(function () {
            $.ajax({
               type: "POST",
               url: "MultipleFileUploadUsingService.aspx/Upload",
               data: $('#fileUpload')[0].files["0"],
               contentType: "image/jpeg; charset=utf-8",               
               success: function () { alert($('#fileUpload')[0].files["0"].name); }
            });
         });    


C#
[System.Web.Services.WebMethod]
        public static void Upload(Byte[] docbinaryarray)
        {
                   
        }


When i send the data with parameter and its contenttype: "application/json", then i receive the value in C# but when i send the file it won't.

Please anybody help me
Thanks & Regards
Kanag.M
Posted

Should not the content type be: 'multipart/form-data'

BTW, why not use already available jQuery plugins to do all the work for you? look at this sample and try:
Tutorials:Multiple File Upload Magic[^]
Ajax File Upload[^]
AJAX Multiple File Upload Form Using jQuery[^]
 
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you can used like this:-


C#
$.ajax({
                    type: "post",
                    url: "rizwan.aspx/addUserMethod",
                    data: "{Value:'" + $("#hdn").val() + "',groupId:'" + $("#drpList").val() + "',Email_Id:'" + $("#txtemail").val() + "' }",

                    contentType: "application/json; charset=utf-8",
                    dataType: "json",

                    success: function (data) {
                        alert(data.d)
                        $("#DivDetails").hide();
                    },
                    error: function () {
                        alert('Problem');
                    }
                });


on cs file:-
  [WebMethod]
        #region Ajax Methods
        public static string addUserMethod(string Value, string groupId, string Email_Id)
        {
           //do some thing
            return str;
            }

          
        }
        #endregion
 
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v2
Comments
kanagmathes 6-Jul-12 7:02am    
its fine but how to send jpg file to c#
rizwan muhammed khan gouri 12-Jul-12 1:43am    
$.ajax(
{
type: "POST",
url: "../ajaxURLs/InsertDocument.aspx?requestNumber=" + reqNum + "&fileName=" + fileName,
contentType: 'multipart/form-data',
cache: false,
success: function (html) {
alert("File Inserted!")
},
error(jqXHR, textStatus, errorThrown) {
alert( "Error: " + textStatus + ": " + errorThrown );
}
});
Put these codes in aspx page Call the function DemoAjaxCall() button click
JavaScript
<script type="text/javascript">

    function DemoAjaxCall() {
            $.ajax({
                type: "post",
                data:"{xyz:'"+23+"'}",
                url: "WebForm1.aspx/DemoAjaxCall",
                contentType: "application/json; charset=utf-8",
                dataType: "json"
            });
        }
</script>

In aspx.cs page write these bellow code.
C#
[WebMethod]
       public static int DemoAjaxCall(int abc)
       {
           return 1;
       }
 
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v2

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