CellType Event Return oldValue is undefined

CellType Event Return oldValue is undefined

Posted by: dnguyenthanhtu on 22 November 2022, 4:03 pm EST

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  dnguyenthanhtu

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  Posted 22 November 2022, 4:03 pm EST - Updated 22 November 2022, 4:08 pm EST

  I add a column when I click button add
  
  When I select a cell and change format for that cell the oldValue is null
  
  It seems I’m missing something.
  
  That image is the args in the cellchanged event
  
  The old value is undefined make me some issue
  
  Please explain for me what’s the issue happened?
  
  Thanks

  

  1911×314 16.8 KB

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  ankit.kumar

  

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  Posted 23 November 2022, 5:12 pm EST - Updated 23 November 2022, 5:17 pm EST

  Hi,

  The argument “oldValue” specifies the old value of the property that has been changed. For example, if you change the formatter of the cell, then the “oldValue” specifies the old formatter applied to the cell. In that case, the “oldValue” doesn’t mean the cell old value.
  
  And when you change the “value” of the cell, the “oldValue” specifies the old value of the cell.

  Please refer to the following code sample: https://jscodemine.grapecity.com/share/eK9Z3WhVsUiJQUJfF3q25Q/

  Please let us know if you need further assistance on this topic. We would be happy to help you.

  Regards,

  Ankit

  

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  dnguyenthanhtu

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  Posted 24 November 2022, 1:59 pm EST

  I think the default of formatter is “General”, not is undefined

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  ankit.kumar

  

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  Posted 27 November 2022, 3:08 pm EST

  Hi,

  The term “undefined” indicates that no formatting is applied to the cell. The “General formatter” is applied to the cell by default.

  If the formatter is undefined, the cell has been formatted with “General Formatter.” This is by design.

  Regards,

  Ankit