Search file in Folder MVC ASP.Net - asp.net-mvc

Question

I started working with MVC ASP.NET and i am stuck on 2 points.
How to search file in folder. For example if one file is inserted in folder then the system will pick this file and add display in list. (only newly inserted file).
Where should i add this code. Model or Control (not in view I guess).
Please help in this matter.

Answer 1

You will be writing your codes in the controller. You got negative points, because you didnt do anything on your own.
cheers

Answer 2

You can search a file in the View or in the Controller. In below I will explain how to do it in the controller with AJAX.
Add this to your View:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
function Check() {
$.ajax({
type: "POST",
url: '#Url.Action("SearchFile")',
data: '{fileName: ' + $('#input1').val() + '}',
dataType: "json",
contentType: "application/json; charset=utf-8",
success: function (result) {
$("#result").val(result);
},
error: function (jqXHR, textStatus, errorThrown) {
alert(jqXHR.status + " " + jqXHR.statusText);
}
});
}
</script>
<div>
<input id="input1">
<button id="btnCheck" onclick="Check()"> Check </button>
<span id="result"></span>
</div>
And I must Add a controller for getting the file name from AJAX and searching it.
[HttpPost]
public ActionResult SearchFile(string fileName)
{
if (!Request.IsAjaxRequest())
return Json(false);
var relativePath = "~/YourFolder/" + fileName;
var absolutePath = HttpContext.Server.MapPath(relativePath);
return Json(System.IO.File.Exists(absolutePath));
}