Merge pull request #4012 from syncfusion-content/ES-906899-FM

906899: Core MVC How to pass custom value from client to server side in the File Manager component.

Author: kmkrish001

ej2-asp-core-mvc/file-manager/how-to/pass-custom-value-to-server.md

@@ -132,7 +132,7 @@ For the **download** operation, use the **beforeDownload** event, setting **useF
 function beforeDownload(args){
   args.useFormPost = false;
   if (args.ajaxSettings) {
-    (args.ajaxSettings as any).beforeSend = function (args: any) {
+    args.ajaxSettings.beforeSend = function (args) {
       args.fetchRequest.headers.append('Authorization', 'User1');
     };
   }
@@ -158,7 +158,7 @@ function beforeDownload(args){
 function beforeDownload(args){
   args.useFormPost = false;
   if (args.ajaxSettings) {
-    (args.ajaxSettings as any).beforeSend = function (args: any) {
+    args.ajaxSettings.beforeSend = function (args) {
       args.fetchRequest.headers.append('Authorization', 'User1');
     };
   }