Check duplicaiton before inserting in Database using Entity Framework in ASP.Net MVC

nauna
on May 23, 2019 05:35 AM
3481 Views

hello,

i am using this insert in linQ mvc i want to check duplicate before insert so if value already exists so it should return messages that already exist please advice

 if (ModelState.IsValid)
{
    db.users.Add(SU);
    db.SaveChanges();

}

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pandeyism
on May 23, 2019 05:40 AM

Answer

Hi nauna,

Refer below links -

https://stackoverflow.com/questions/1802286/best-way-to-check-if-object-exists-in-entity-framework

https://stackoverflow.com/questions/9287454/check-the-existence-of-a-record-before-inserting-a-new-record

https://stackoverflow.com/questions/9603131/where-to-run-a-duplicate-check-for-an-entity

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