Web App C# HTML form POST images

I have the below code on the page "[login to view URL]"; I want to rename the file name and save them in the imgs folder. Your task is to code the function "SaveImagesToDirectory"; such that 1- reads the post vales 2- rename images 3- Save the images to imgs folder. <% if ([login to view URL]["imgesSubmitted"] == "imgesSubmitted") { SaveImagesToDirectory(); } %> <form action="ImgesFL" method="post"> <div class="form-body"> <div class="form-group"> <h3 class="form-section">Images</h3> </div> <div class="m-grid m-grid-demo"> <% int i = 0; while (i < 10 ) { %> <div class="m-grid-row"> <div class="m-grid-col m-grid-col-middle m-grid-col-center m-grid-col-md-6"> <div class="fileinput fileinput-new" data-provides="fileinput"> <span class="btn blue btn-file"> <span class="fileinput-new"><i class="fa fa-check"></i> Add/Change</span> <span class="fileinput-exists"><i class="fa fa-check"></i> Add/Change </span> <input type="file" name="structureFileName<% [login to view URL](i); %>"> </span> <span class="fileinput-filename"> </span> &nbsp; <a href="javascript:;" class="close fileinput-exists" data-dismiss="fileinput"> </a> </div> </div> </div> <% i++; } %> </div> </div> <div class="form-actions right"> <input type="hidden" name="imgesSubmitted" value="imgesSubmitted" /> <button type="submit" class="btn blue"><i class="fa fa-check"></i>Save images</button> </div> </form>