WoWInterface - Change Button Text on Click Event

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- - Change Button Text on Click Event (https://www.wowinterface.com/forums/showthread.php?t=59059)

Change Button Text on Click Event

Hi all,

I have a button that I want to say "Start" when loaded and then say "Stop" when clicked.

Here is the lua creating the Fontstring and event:
BtnStopGo:SetScript("OnClick", StopStart)
local fs = BtnStopGo:CreateFontString(nil, "OVERLAY", "GameFontHighlight")
fs:SetText("Start")
fs:SetPoint("CENTER")
BtnStopGo:SetFontString(fs)
BtnStopGo.text = fs

And here is the code I tried but it has errors:
function StopStart()
if boolStartStop == true
then
CommandStartStop.texture:SetColorTexture(255,0,0)
boolStartStop = false
fs:SetText("stop")
fs:SetText("Stop")
fs:SetPoint("CENTER")
BtnStopGo:SetFontString(fs)
BtnStopGo.text = fs
else
CommandStartStop.texture:SetColorTexture(0,255,0)
boolStartStop = true
fs:SetText("stop")
fs:SetText("Stop")
fs:SetPoint("CENTER")
BtnStopGo:SetFontString(fs)
BtnStopGo.text = fs
end
end

Here is the Bugsack error message:
"2x Grid\Grid.lua:641: attempt to index global 'fs' (a nil value)"

I've googled a lot and can't find the correct way to have text of a button change on clicking the button. Can anyone help please?

Code:

local button = CreateFrame("Button", nil, UIParent, "UIPanelButtonTemplate")

button:SetSize(100,20)

button:SetPoint("CENTER")

button:RegisterForClicks("AnyUp")

button:SetText("Start")

button:SetScript("OnClick", function(self,btn)

  if self:GetText()=="Start" then

    self:SetText("Stop")

  else

    self:SetText("Start")

  end

end)

button:SetMovable(true)

button:RegisterForDrag("LeftButton")

button:SetScript("OnDragStart", button.StartMoving)

button:SetScript("OnDragStop", button.StopMovingOrSizing)

button:SetScript("OnHide", button.StopMovingOrSizing)

button:Show()

This should make a minimal button for testing but your error mentions line 641, meaning there's a ton of code you're not showing.

The most probable cause is that fs does not exist inside StopStart because it is defined as a local in another scope.

Thanks. That is so much more elegant than my effort as well as working!