File Type Validation using Java Script

Step 1:

Create a File browse item.

Step 2:

Create a button to submit the page. Give the Action when Clicked as Defined by Dynamic Action.

Step 3:

Create a Dynamic Action with execution of JavaScript as

function validateEstimation() {

            var IsValid = true;

    var estimate_file=$("#P13_ESTIMATE_FILE").val().trim();

       

            if (IsValid) {

              var exist_file= "";

            if($("#P13_DOWNLOAD_FILE").length > 0) exist_file = $("#P13_DOWNLOAD_FILE").html();

               if (estimate_file == "" && exist_file == "") {

                                                            IsValid = false;

                    alert("Please select estimate file.");

               }

               else if (estimate_file !="")

               {

                   estimate_file = estimate_file.substring(estimate_file.lastIndexOf("."));

                   //alert(estimate_file);

                   var allowedFormats = "|.pdf|.xls|.doc|.xlsx|.docx|";

                   if (allowedFormats.indexOf("|" + estimate_file + "|") == -1) {

                       IsValid = false;

                       alert("Invalid Estimate file format selected.");

$("#P13_ESTIMATE_FILE").val('');

                   }

               }

                   if (!IsValid) return false;

            }

}

This Java Script function helps to accept .pdf,.xls,.doc,.xlsx,.docx files.

By

A.Arun Kumar