DbExpressionBuilder.IsNull Method (DbExpression)
Creates a new DbIsNullExpression that determines whether the specified argument is null.
Assembly: EntityFramework (in EntityFramework.dll)
Parameters
- argument
-
Type:
System.Data.Entity.Core.Common.CommandTrees.DbExpression
An expression that specifies the argument.
Return Value
Type: System.Data.Entity.Core.Common.CommandTrees.DbIsNullExpressionA new DbIsNullExpression with the specified argument.
Exception | Condition |
---|---|
ArgumentNullException | argument is null. |
ArgumentException | argument has a collection result type. |