Image Unique ID Number aganist a photo

Question

I find in Camera Data(exif) in Bridge Image Unique ID Number aganist a photo which was downloaded from
a Picasa public album.My query is how to create this one. And one more query not related to this forum.I find in some Picasa albums download photo is disabled and I do not find any such option while uploading my photos.Hope I will not be attacked for using the forum for this query.Thank u

Answer 1

I do this in the following way. I create a generic handler(ashx) and in the ashx file I execute the following code:
Using Context As ServerApplicationContext = ServerApplicationContext.CreateContext()
Dim sem As New Semaphore(1, 1, "MyPONumber") 'Allows only 1 to get a number per access. This ensure a unique Number
Try
pDate = Request.QueryString("OrderDetailDate") 'Your Parameter with the Order Date
dim PoNumber as String = "PO"+pDate.Year.ToString("D2")+ pDate.Month.ToString("D2")+ pDate.DayOfWeek.ToString("D2")
'Getting a unique number is more difficult. I store a counter in the database retrieve the value and store the value
sem.WaitOne()
Dim oPoNr = (From s In Context.DataWorkspace.yourdataspace.table Where s.titel = "PoNumberUniquePart").First
dim neuePonummer as ULong
ULong.TryParse(oPoNr.PoNumberUniquePart, neuePonummer)
neueNummer += 1
oPoNr.PoNumberUniquePart = neueNummer.ToString
Context.DataWorkspace.yourdataspace.SaveChanges()
sem.Release()
context.Response.Write(PoNumber)
catch
'some possibly execptions
End Try
In my LS Screen. You can hit a Button to get the PO Number or do it automatically in a Render function.
myapp.Screen.Button_execute = function (screen) {
var paraDate = screen.orderdetaildate;
$.ajax({
type: 'post',
data: {
DateID: paraDate,
url: '../WebRequests/yournameofthe.ashx',
success: function success(result) {
// Show result
if (result != "") {
//alert(result);
screen.Ponumber = result;
else {
alert("Error");
These are some extracts from my code. Please use this as an Idea. When you fit it into your Environment it should work.
Kind Regards
Thomas