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Editorial Team
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Asked: 2026-05-22T13:06:21+00:00

I have an application in Delphi 7 which is using a clientdataset, and make

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I have an application in Delphi 7 which is using a clientdataset, and make several operations on it. ClientDataSet is linked to an Intraweb Grid.

I make an insert or an edit on the ClientDataSet. How can I verify the data introduced in the clientdataset for each field? I can not verify the input from the user on the webform, so I must make validation using ClientDataSet events.

LE: I want to validate data when the user make the input. Not at the onbeforepost event. So, I put the clientdataset in the edit/insert. User make an input in the grid, and I want to validate the data for that row in the clientdataset like in the image bellow:

enter image description here

first column is string, second is integer, the third one is also an integer. Now, I want to validate the third column after the user make the input. This validation must be done (if it is possible), only by using clientdataset events/hacks.

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1 Answer

  1. Editorial Team

    You should handle TClientDataset BeforePost event, and if data is not valid use abort method

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