DataContextFirstOrDefaultTModel Method (ExpressionFuncTModel, Boolean)

First or default returns only the first object or null if not found

Namespace: SanteDB.OrmLite
Assembly: SanteDB.OrmLite (in SanteDB.OrmLite.dll) Version: 2.2.1

Syntax

public TModel FirstOrDefault<TModel>(
	Expression<Func<TModel, bool>> querySpec
)

Public Function FirstOrDefault(Of TModel) ( 
	querySpec As Expression(Of Func(Of TModel, Boolean))
) As TModel

public:
generic<typename TModel>
TModel FirstOrDefault(
	Expression<Func<TModel, bool>^>^ querySpec
)

member FirstOrDefault : 
        querySpec : Expression<Func<'TModel, bool>> -> 'TModel

Parameters

querySpec: Type: System.Linq.ExpressionsExpressionFuncTModel, Boolean
[Missing <param name="querySpec"/> documentation for "M:SanteDB.OrmLite.DataContext.FirstOrDefault``1(System.Linq.Expressions.Expression{System.Func{``0,System.Boolean}})"]

Type Parameters

TModel: [Missing <typeparam name="TModel"/> documentation for "M:SanteDB.OrmLite.DataContext.FirstOrDefault``1(System.Linq.Expressions.Expression{System.Func{``0,System.Boolean}})"]

Return Value

Type: TModel

[Missing <returns> documentation for "M:SanteDB.OrmLite.DataContext.FirstOrDefault``1(System.Linq.Expressions.Expression{System.Func{``0,System.Boolean}})"]

Reference

DataContext Class

FirstOrDefault Overload

SanteDB.OrmLite Namespace