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TextBounds

TextBox

Vector2

The read-only property TextBounds reflects the absolute pixel size of rendered text. In other words, if you were to try to fit text into a rectangle, this property would reflect the minimum dimensions of the rectangle you would need in order to fit the text.

Using TextService/GetTextSize, you can predict what TextBounds will be on a TextLabel given a string, TextBox/Font, TextBox/TextSize and frame size.


Code Samples


Dynamic TextBox Size

This code sample dynamically resizes a TextLabel, TextButton or TextBox to match the size of its TextBounds. Try changing the minimum width/height and pasting into a LocalScript in a TextBox.

local textBox = script.Parent

-- The smallest the TextBox will go
local minWidth, minHeight = 10, 10

-- Set alignment so our text doesn't wobble a bit while we type
textBox.TextXAlignment = Enum.TextXAlignment.Left
textBox.TextYAlignment = Enum.TextYAlignment.Top

local function updateSize()
	textBox.Size = UDim2.new(
		0, math.max(minWidth, textBox.TextBounds.X),
		0, math.max(minHeight, textBox.TextBounds.Y)
	)
end

textBox:GetPropertyChangedSignal("TextBounds"):Connect(updateSize)