Func.IsNull(IQueryColumnExpressionConvertible,IQueryColumnExpressionConvertible) - метод Смотри также Terrasoft.Core.DB - пространство имен > Func - класс > IsNull - метод : IsNull(IQueryColumnExpressionConvertible,IQueryColumnExpressionConvertible) - метод C#
- checkExpression
- Expression to check for being equal to
null.
- replacementValue
- Expression returned by the function if checkExpression is equal to
null.
Glossary Item Box
null value for the replacement value for the specified expression to check and the replacement expression.
Синтаксис
public static IsNullQueryFunction IsNull( IQueryColumnExpressionConvertible checkExpression, IQueryColumnExpressionConvertible replacementValue )
Параметры
- checkExpression
- Expression to check for being equal to
null. - replacementValue
- Expression returned by the function if checkExpression is equal to
null.
Тип возвращаемого значения
Function that substitutes thenull value in the checkExpression expression for the replacementValue expression.
