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EntityFunctions.DiffDays Method (Nullable<DateTime>, Nullable<DateTime>)

Invokes the canonical DiffDays function. For information about the canonical DiffDays function, see Date and Time Canonical Functions.

Namespace:  System.Data.Objects
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

[EdmFunctionAttribute("Edm", "DiffDays")]
public static Nullable<int> DiffDays(
	Nullable<DateTime> dateValue1,
	Nullable<DateTime> dateValue2
)

Parameters

dateValue1
Type: System.Nullable<DateTime>

A valid date.

dateValue2
Type: System.Nullable<DateTime>

A valid date.

Return Value

Type: System.Nullable<Int32>
The number of days between dateValue1 and dateValue2.

You cannot call this function directly. This function can only appear within a LINQ to Entities query.

This function is translated to a corresponding function in the database.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4
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