Remove unwanted empty lines

[John31]

I have several input boxes and want to send the text of the input boxes to a Paragraph Object. I have used the code below.


content =(strButter.."\r\n"..strEggs.."\r\n"..strCheese.." \r\n"..strYoghurt.."\r\n"..strCream.."\r\n"..strMi lk);
Paragraph.SetText ("Paragraph1", content);


The problem is that I do not want empty inputs being sent so I dont get empty lines in the paragraph as the example below.Can I do this? I have searched but cannot find an answer to this.
ie.

Eggs
Cheese
Yoghurt

Milk

[Ulrich]

Well, you would need to see if the Input fields actually contain data before you concatenate the string into "content", wouldn't you?

Ulrich

[RizlaUK]

if content ~= "" then

[Cybergraph]

Maybe, because John31 is a new user, it is necessary to kindly invite him to read the user manual?

[MadDogDean]

Hey John,

Welcome to the forum. Things will be a little daunting and overwhelming to start with, but here's one to get you going.

What RizlaUK said is the key to this.

Copy the following code to the "On Click" of the button.

We need to test the values of the text from each Input and appending the "\r\n" ONLY if the value of the Input field is not (~=) empty. This is a simple, rudimentary style, laying everything out to see, and it'll help you get a better understanding.

strButter	= Input.GetText("Input1")
strEggs		= Input.GetText("Input2")
strCheese	= Input.GetText("Input3")
strYoghurt	= Input.GetText("Input4")
strCream	= Input.GetText("Input5")
strMilk		= Input.GetText("Input6"))

if strButter ~= "" then
	strButter = strButter.." butter\r\n";
end

if strEggs ~= "" then
	strEggs = strEggs.." eggs\r\n";
end

if strCheese ~= "" then
	strCheese = strCheese.." cheese\r\n";
end

if strYoghurt ~= "" then
	strYoghurt = strYoghurt.." yoghurt\r\n";
end

if strCream ~= "" then
	strCream = strCream.." cream\r\n";
end

if strMilk ~= "" then
	strMilk = strMilk.." milk\r\n";
end

content = strButter..strEggs..strCheese..strYoghurt..strCream..strMilk;

if content == "" then
	Paragraph.SetText("Paragraph1", "We have everything!");
else Paragraph.SetText("Paragraph1", "We need:\r\n"..content);
end

Hope this helps to get you started. The forum is a great place for sampling code and getting a feel for what does what.

Cheers,
MadDogDean

PS. If whatever you're baking works out, I get a dozen!

[John31]

Many thanks for the help and special thanks to you MadDogDean for the sample code. The code you supplied really helped me see how to go about this probably easy problem (to anyone who knows the program better). I promise I looked through the online user manual which is how I got as far as I did.
Many thanks great help.

[MadDogDean]

The code you supplied really helped me see how to go about this probably easy problem (to anyone who knows the program better). I promise I looked through the online user manual which is how I got as far as I did.
Many thanks great help.

Glad to help John. Just wait... in a year you'll look back to this first posting and go

"D'oh, how could I NOT have gotten it??!"

Cheers,
MadDogDean