Asp.net Path is working but IIS path is not working

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C#

ASP.NET

IIS

Hello,
i created one folder under solution explorer called subimg (subimg is not under any folder. it is under solution explorer).

In my project i need show different images for the product.
so,i need to save and delete images from folder .

Below code works exctaly what i want when i am running in localhost.

But after hosting in IIS Server, it is not working.

to save image into folder
showimage.ashx.cs
*****************

string path23 = context.Server.MapPath("~/subimg");
                bmpToSave1.Save("" + path23 + "/"+ ".jpg");

to delete image from folder
product.aspx.cs(pageload)
************************

try
                    {
                        var fileimgpath = Directory.GetFiles(Server.MapPath("~/subimg"));

                        foreach (string s1 in fileimgpath)
                        {
                            if (File.Exists(s1))
                            {
                                File.Delete(s1);
                            }
                        }
                    }
                    catch(Exception ex)
                    {

                    }

i tried ../, only / , without / too instead of '~'. but not working.

help needed.