WebDuplicate Key Exception (Object, String, Exception) Initializes a new instance of the DuplicateKeyException class by referencing the duplicate key, providing an error … WebYou have to fix you Category class: public int Id { get; set; } [DisplayName ("Category ")] [Required (ErrorMessage = "Category Name is Required")] public string CategoryName { get; set; } [InverseProperty (nameof (Library.Category))] public virtual ICollection LibraryItems {get; set:}
c# - sqlexception cannot insert duplicate key row - Stack …
WebApr 15, 2024 · org.hibernate.MappingException: Could not determine type for: java.util.Set [duplicate] Instantiate a class object with constructor that accepts a string parameter? deleting folder from java [duplicate] How to display HTML as inline element? What is the difference between :before and ::before? Identity in ASP.Net Core 2.1 - Customize ... WebOct 7, 2024 · try { con.Open (); SqlCommand cmd = new SqlCommand (query, con); SqlParameter [] param = new SqlParameter [5]; param [0] = new SqlParameter ("@Username", SqlDbType.VarChar, 20); param [1] = new SqlParameter ("@Password", SqlDbType.VarChar, 20); param [2] = new SqlParameter ("@FName", SqlDbType.VarChar, … mounties song
Is it possible to determine what caused a duplicate key
WebOct 19, 2012 · The duplicate key value is (1). The statement has been terminated. Msg 2627, Level 14, State 1, Line 4 Violation of UNIQUE KEY constraint 'UN_Table1'. Cannot insert duplicate key in object 'dbo.Table1'. The duplicate key value is (1). The statement has been terminated. Msg 2601, Level 14, State 1, Line 5 Cannot insert duplicate key row in ... WebJul 15, 2024 · The code below is written to capture the inner SqlException and only handles SQL unique index violations. It starts with the method that detects each type of error you want to handle, and then calling the appropriate method. It’s basically a sophisticated switch pattern, and you can add more error handling by adding extra tests. 1 2 3 4 5 6 7 8 9 WebError Message: Violation of PRIMARY KEY Constraint; Error Message: Violation of PRIMARY KEY Constraint Cannot inset duplicate key in object mounties mount pritchard contact