Formatting Numbers in App Designer's UITable

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Is there a way to format numbers in a UITable in App Designer? For example, can I have the second row's format be '%.1f' and cell (4,2)'s format be '%.4e'? I don't want to use strings because I need to keep the table's numerical data.

Accepted Answer

Walter Roberson
Walter Roberson on 10 Jan 2025
You have two possibilities here:
  1. format as strings
  2. independently round() each column to the appropriate number of digits
The problem with strings is that a) the table no longer contains full-precision data; and b) you lose the ability to force edits to be strictly numeric format (though with CellEditCallback you can post-process and remove the unacceptable portions of the entry.)
The problem with round() is that a) the table no longer contains full-precision data; and b) trailing zero decimal places will not be displayed, so you cannot force the equivalent of %.4f
There is no mechanism that preserves the full-precision values inside the uitable but displays the data with custom format. You can set 'ColumnFormat' for individual entries to be 'short' but that is not so satisfactory.

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