Bug? For - Next Loop fails with WebLabel array

Targets Web
1

I have known-good code with a For / Next loop working with an integer iteration that is used to select the array member to add the text to a String variable.

For some reason this fails with a WebLabel array.

This code works:

// g() has several members, all WebLabel controls.
Var s As String
Var g As Integer

For g = 0 To 7
s = s + " " + w(g).Text
Next

Var js As String = “navigator.clipboard.writeText('” + s + “');”
ExecuteJavaScript(js)

THIS code FAILS:

Var s As String

For Each b As WebLabel In g
s = s + " " + b.Text
Next

Var js As String = “navigator.clipboard.writeText('” + s + “');”
ExecuteJavaScript(js)

I copied the same pattern of logic that I saw with String arrays being used in For Each - Next loops, and I’m wondering if this is a bug that I’m encountering.

It could be that I’m sleep-deprived and am missing something ridiculously obvious, or this could be a bug. Thanks to anyone helping restore my sanity on here.

2

Can you give more information about “this code fails”?
What do you see?
Or you can provide a sample code to easily see what you see.

3

I am getting errors, and the logic I’m using is patterned after String array code.

image
image618×520 12.5 KB

4

You’re seeing that because control sets don’t implement the iterable functionality. Additionally, the framework still gives you no way of determining how many controls are in a set, such as by using myControlSet.LastIndex.

One way around this is to use a property something like myControlSetLastIndex As Integer = -1 then in the control set’s Opening event you add one to that property. That would then allow you to write the following for iteration:

for index as Integer = 0 to myControlSetLastIndex
  var current as myControlSet = myControlSet(index)
  '// do something here...
next

Or you can iterate all controls on the WebPage/Window/Container:

for each o as Object in self.Controls
  if o isa myControlSet then
    var label as myControLSet = myControlSet(o)
    '// do something here...
  end if
next
5

Ah, makes sense. I’m surprised that control sets don’t implement iterable functionality, considering that such functionality exists with folders / children and variable sets such as String and Integer.

I know exactly how many WebLabel controls I have in the array, so at least I don’t have to sort that out.

6

I implement it that way to futureproof. I can add or remove labels as needed without modifying code.