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Unidbgrid Columns CustomConstraint

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In UniDbGrid ,columns don't get CustomConstraint.

I Create UniDbGrid in Runtime and set fields,But UniDbGrid columns don't have CustomConstraint that Field in dataset has.

I write below code

      For i := Columns.Count - 1 DownTo 0 do

But Show below Error


First chance exception at $0040BF8A. Exception class $C0000005 with message 'access violation at 0x0040bf8a: write of address 0x00000094'. Process P.exe (5616)


Best Regards.

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