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Cannot Insert the value Null into column "Attachment"

Dear All,

I want to attach some files as details grid of parent grid without using blob adapter settings, files should be stored as binary format in database.

while attaching I am getting a error like this, "Cannot Insert the value Null into column "Attachment"

Herewith, I am attaching my all working screen-shot.

Please suggest me what need to be change for fix this issue.

Here I have composite key for details grid.

Regards,

Dhirendra Kumar Nayak.

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