C# - Adding Data With Same Primary Key Data?
Feb 25, 2011
I have a table name AVUKAT and it's columns (AVUKAT, HESAP(Primary KEY), MUSTERI)
All MUSTERI has a one unique HESAP (int).
Simple I have a page like this.
First dropdown is selected MUSTERI, second is AVUKAT
And i automaticly calculating HESAP (int and Primary KEY) with this code. (On the background.)
[code]....
The reason use try catch , if anybody try to add add with same HESAP (int) value for the MUSTERI i want show an error message and don't add the table.
But when i try to add same MUSTERI (also same HESAP) adding same MUSTERI with HESAP=0 value.
How can i prevent this situation? I select HESAP column is Primary KEY, but still add same MUSTERI.
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