You can refer the below article. After uploading the file to db you can preview it.

Upload and save (insert) multiple files to database in ASP.Net using C# and VB.Net

Thanks for the reply.But How would i Know which file user select first and so on.I want to "Multiple image upload in a sequence Selected by User (Sequential Upload).Preserve the order in which files are selected by user"

It is not possible. How does the browser know you have selected suppose in a order like 1,5,3,4,2. For that you have to select one image at a time.

Or you can refer the below article that will fullfill your requirement.

Uploading Multiple Files using FileUpload Control in ASP.Net 2.0, 3.0 and 3.5

i tried this but not working

/*global $ */
$(function () {
    $('#file_upload').fileUploadUI({
        uploadTable: $('#files'),
        buildUploadRow: function (files, index) {
            return $('<tr><td>' + files[index].name + '<\/td>' +
                    '<td class="file_upload_progress"><div><\/div><\/td>' +
                    '<td class="file_upload_cancel">' +
                    '<button class="ui-state-default ui-corner-all" title="Cancel">' +
                    '<span class="ui-icon ui-icon-cancel">Cancel<\/span>' +
                    '<\/button><\/td><\/tr>');
        },
        buildDownloadRow: function (file) {
            return $('<tr><td>' + file.name + '<\/td><\/tr>');
        },
        sequentialUploads: true
    });
});

HTML5 multiple file uploads is controlled by browser so it cannot be predicted for sequence