When creating a table in TableBuilder, either by pasting JSON data or by selecting a file as the data source, any input error can cause the Data Source window to close unexpectedly. Examples include:
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Missing commas in pasted JSON.
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Trailing commas in pasted JSON.
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Invalid or incorrect file paths when selecting a file.
Currently, when such an error occurs, TableBuilder closes the Data Source window and discards all unsaved work. This is particularly problematic when creating a new endpoint, as users can lose significant progress if their work has not been saved beforehand.
Requested Improvement
TableBuilder should not close the Data Source window or discard the user's work when a data source validation error occurs. Instead, it should:
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Display a clear error message indicating the issue.
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Keep the user within the TableBuilder interface.
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Preserve all entered data and configuration settings.
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Allow the user to correct the error and continue without losing progress.
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Instead of writing the path to source file, there should be browser button so that correct file could be choosen.
This change would significantly improve the user experience and prevent unnecessary loss of work caused by minor input mistakes.
