Chart Updates Even After Invalid Decimal Input in ChartRedrawView

[jturfanbasis]

Description

When entering a decimal value (e.g., 1.5) in any input field and clicking the "Redraw Chart" button, the chart updates and accepts the invalid input, even though a warning is displayed indicating that the input is not valid.
Additionally, the input field accepts negative numbers, which is not expected.

Steps to Reproduce

1. Navigate to the page googlecharts > types > ChartRedrawView.java
2. Enter a decimal value (e.g., 1.5) into one of the input fields
3. Observe the warning message that appears: "Please enter a valid value. The two nearest valid values are 1 and 2."
4. Click the "Redraw Chart" button then Observe that the chart updates.

Expected Behavior

The application should not update the chart when an invalid value (e.g., a decimal number) is entered. Instead, it should reject the input and prompt the user to provide a valid value.

Screen.Recording.2024-12-18.151339.mp4