How to pass string array to asp.net mvc action method or Api

This one works. Issue is its not able to download zip files.

 

This code works fine. 

 

public class HomeController : Controller
{
static List ingList = new List
{
"1615\\1211\\0\\mustang.jpg",
"1615\\1211\\0\\audi.jpg",
"1615\\1211\\0\\bmw.jpg"
};
public ActionResult Index()
{
DownLoadZip(ingList);
return View();
}

public void DownLoadZip(List imgList)
{

string imgRootPath = ConfigurationManager.AppSettings["filepath"] + "\\";
string imgFile = "";
string imgKey = "";
if (imgList.Count > 0)
{
string[] fileNames = imgList.FirstOrDefault().ToString().ToLower().Split('\\');
string fileName = "DaysImage_";
fileName += fileNames[0] + fileNames[1] + fileNames[2] + ".zip";

using (ZipFile zipFile = new ZipFile())
{

foreach (var imgPath in imgList)
{
imgKey = imgPath.Substring(imgPath.LastIndexOf("\\") + 1);
imgFile = imgRootPath + imgPath;
zipFile.AddEntry(imgKey, imgFile);
}

Response.ClearContent();
Response.ClearHeaders();
Response.AppendHeader("content-disposition", "attachment; filename=" + fileName );

zipFile.Save(Response.OutputStream);
}
}
}

 

But i think when i made call from ajax, does it expect something in return?

Hi Mangesh ,

 

I could not find System.Web.Http to add FormBody

Hi Rana,

 

change the below code,

 

$.ajax({

url: "/Home/DownloadImages",

headers: { "__RequestVerificationToken": token }, //Remove this line

type: 'POST',

data: postData

public string Greetings(List imageList) //This should be imageList, Not PostData

{

string result = "";

foreach(var item in postData)

{

result += item + " ";

}

return result;

}

Here is problem with object name and type... Try this...

Hi Dharmaraj,

 

If i did like the way you said, I get Null value in parameter in my action method 

var token = $('[name=__RequestVerificationToken]').val();

//$(".imgEmail-checked").each(function (index) {

// var imageID = $(this).prop("id");
// var imagename = imageID.substring(2);
// var image = "";

// var imageelm = $("#i-" + imagename);

// var newimagename = imageelm.attr("data-newimagename");
// if (typeof newimagename != "undefined") {
// if (newimagename.length != 0) {
// image = newimagename;
// }
// else {
// image = imagename;
// }
// }
// else {
// image = imagename;
// }

// var day = $("#questionlist").attr("data-day");
// var StoreNumber = $("#questionlist").attr("data-StoreNumber");
// var ProjectID = $("#questionlist").attr("data-ProjectID");

// var jpg = image.toLowerCase().indexOf(".jpg")

// var name = image.replace(/\./g, '\\.');
// imagename = imagename.replace(/\./g, '\\.');
// if (jpg == -1) {
// image = image + ".jpg";
// }

// imgSourcePath = ProjectID + "\\" + StoreNumber + "\\" + day + "\\" + image;

// imgSourcePathCollection.push(imgSourcePath);

//});

imgSourcePathCollection = ["1615\\1211\\0\\audi.jpg", "1615\\1211\\0\\bmw.jpg", "1615\\1211\\0\\mustang.jpg"]

var postData = { imageList: imgSourcePathCollection };

console.log(postData)

$.ajax({
url: "/Home/DownloadImages",
headers: { "__RequestVerificationToken": token },
type: 'POST',
data: JSON.stringify(postData),
dataType: "json",
traditional: true,

success: function (data) {
imgSourcePathCollection = [];
},
[HttpPost]
public void DownloadImages(List postData)
{
try
{
string imgRootPath = ConfigurationManager.AppSettings["filepath"] + "\\";

string imgFile = string.Empty;
string imgKey = string.Empty;

if (postData.Count > 0)
{
string[] fileNames = postData.FirstOrDefault().ToString().ToLower().Split('\\');
string fileName = "DaysImage_";
fileName += fileNames[0] + fileNames[1] + fileNames[2] + ".zip";

using (ZipFile zipFile = new ZipFile())
{
foreach (var imgPath in postData)
{
imgKey = imgPath.Substring(imgPath.LastIndexOf("\\") + 1);
imgFile = imgRootPath + imgPath;
zipFile.AddEntry(imgKey, imgFile);
}

Response.ClearContent();
Response.ClearHeaders();
Response.AppendHeader("content-disposition", "attachment; filename=" + fileName);

zipFile.Save(Response.OutputStream);
}
}

}
catch (Exception ex)
{
string s = ex.ToString();
}
}

Hi Dharma Raj,

 

When I tried the way you asked me to do , I got below error.
SyntaxError: Unexpected end of JSON input
at parse ()

Problem is here...

 And make array stringify....