Controlling Scroll Text Properties

[mrbean]

I have a string indicator with a scroll bar on the side.  Each line that is written displays underneath the previous line.  However, when it gets to the bottom (8th line), it does not auto scroll up.  Therefore, I have to use the scroll bar to see what was last written.  Is there a property that allows me to control this so that the last item added always displays?

[UliB]

Hello,

there is a property 'Text.Scroll Position'. Wire -1 to it to show the last line of text.

UliB

[perhult]

Set Text.ScrollPos to the number of letters in your indicator, and the scroll position will move to the last line.

If you do not know the number of letters, read Text.Text and find the string length.

[mrbean]

I read about the -1.  However, the type is U32 and it won't let me use the -1

[perhult]

-1 will cast to the maximum size of U32, which will have the same effect as setting it to the length of the text in the indicator.

But I think setting it to the actual length is more correct since it does not hide what is actually happening.

[UliB]

Well,

-1 in I32 will convert to 4294967295 in U32. If you always want the last line wire a I32 constant with -1 to the property.

UliB

[mrbean]

I tried some of the suggestions, and they don't seem to work.  One question, though, can I set the Text.ScrollPos attribute once (at the beginning) and be done? Or do I have to set it each time I write to it?

[UliB]

The property node updates the display when you call it, so you should call 'Text.Scroll Position' every time after you updated your text.

You could use property 'value' and property 'Text.Scroll Position' in one property node.

UliB

[UliB]

It could be like this:

 

UliB

[mrbean]

That seems to work now!  Thanks for all the help