How to Check If Record Exist Before Insert in C# with SQL | ProgrammingGeek

This tutorial teach you how to check record Product ID (int) exists before performing insert operation in c# windows form application step by step.
This is very easy to check whether record exist or not in string variable, but it is not so easy to check records exist or not in datatype int. Because in int datatype can not pass null value. So we need to convert to varchar and string so that it pass null value easily.

If you watch this full tutorial you can understand How to check if record Exists before insert in int datatype column.

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[kuldeepmohanty]

Thanks for responding to the comment and making a tutorial as well. ThankYou and Much appreciated...

[aminaali]

Thanks for sharing such helpful tutorial. I have searched enough this tutorial. Great 👍👍👍

[montassirben]

Hello sir
your tutorials are great please keep going.
thank you so much !

[SriRamTrading]

i am trying to implement this to my azure sql table but i am adding the value directly from addvalue function then how i find the id for comparing that its already present or not