c# - Trying to set a non-null string to type 'System.Int32' -

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The unit's outline is throwing this exception:

'BranchIdentity' running 'PasswordIterations' property Could not set to a 'system.String' value You must set this property in non-null value of type 'System.Int32'.

This is throwing on this line:

  // Validate specificity or email and user name var user = sqlStorage.BranchIdentities.FirstOrDefault (i = & Gt; i.Username.ToLower () == View Model.User. TOLower ());  

Exception only throws when one unit matches the query. . If there are no matches, then there is no exception

My BranchIdentity Model:

  Namespace Branch.Models.Sql {Public Sector BranchIdentity {[Key] Public Integer ID { get receive; Set; } [Required] Public String Username {get; Set; } [Required] Public string passwordHash {get; Set; } [Required] Public string passwordSalt {get; Set; } [Required] Public et Password Retention {Receive; Set; } [Required] Public String Email {get; Set; } [Required] public string full name {get; Set; } Public Virtual Icon & Lt; Branch Identity Sessions & gt; Branch {IDENTIFICATION SESSION} Set; } Public virtual branch roll branch branch receipt; Set; } Received Public Virtual GamerIdentity GamerIdentity {}; Set; }}}  

and my schema (taken from SQL database) - Auto-generated using code-first migration:

  Table [dbo]. [BranchIdentities] ([id] INT identity (1, 1) No NULL, [username] NVARCHAR (max) NULL, [PasswordHash] NVARCHAR (max) NULL, [PasswordSalt] NVARCHAR (max) NULL, [PasswordIterations ] INT No NULL, [Email] NVARCHAR (MAX) No NULL, [BranchRole_Id] INT Zero, [GamerIdentity_Id] INT Zero, [FullName] NVARCHAR (Max) default ('') No NULL, Obstacle [PK_dbo.BranchIdentities] Primary key Package ([ID] ASC), Contract [FKDDO Bronchitis DDA] BranchRollsborsch Riv_ID] Foreign Key ([branch roll_id]] reference [DBO]. [ Branch code] [], [[ID]], contract [FKDDBO.bronkeyindtityw.W.GemarEditentsGameIndentity_ID] Foreign Keys ([GamerIdentity_Id]) Reference [DBO]. [GamerIdenti Relations] ([ID]));  

I have tried to make password alert the taps, but there is no benefit.