c# - AddObject and Save Not Working -

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i have dbml have table within mvc environment.

db.trucktable.addobject(trucktbl); db.savechanges();

it isn't working can't find addobject() pertaining trucktable. wordering if there way around make table save in dbml file.

with linq-to-sql method add objects called insertonsubmit() , saving changes done through submitchanges().

db.trucktable.insertonsubmit(trucktbl); db.submitchanges();

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