.Net Framework > v3.5.21022.8 > System > Linq > Queryable > Sum<TSource> Sum<TSource>(IQueryable<TSource>,Func<TSource,Int32>>)
Sum<TSource>(IQueryable<TSource>,Func<TSource,Nullable<Int32>>>)
Sum<TSource>(IQueryable<TSource>,Func<TSource,Int64>>)
Sum<TSource>(IQueryable<TSource>,Func<TSource,Nullable<Int64>>>)
Sum<TSource>(IQueryable<TSource>,Func<TSource,Single>>)
Sum<TSource>(IQueryable<TSource>,Func<TSource,Nullable<Single>>>)
Sum<TSource>(IQueryable<TSource>,Func<TSource,Double>>)
Sum<TSource>(IQueryable<TSource>,Func<TSource,Nullable<Double>>>)
Sum<TSource>(IQueryable<TSource>,Func<TSource,Decimal>>)
Sum<TSource>(IQueryable<TSource>,Func<TSource,Nullable<Decimal>>>)

Sum<TSource>(IQueryable<TSource>,Func<TSource,Int32>>)

Category

Method

Description

Computes the sum of the sequence of System.Int32 values that is obtained by invoking a projection function on each element of the input sequence.

Type

Int32

Character

public, static

Parameters

Name	Type	Description
source	System.Linq.IQueryable<TSource>
selector	System.Linq.Expressions.Expression<System.Func<TSource,Int32>>

Attributes

Name	Value/Assignment
ExtensionAttribute

Tags

01892ABD01, 02E3ABA98D, 0322962271

Sum<TSource>(IQueryable<TSource>,Func<TSource,Nullable<Int32>>>)

Category

Method

Description

Computes the sum of the sequence of nullable System.Int32 values that is obtained by invoking a projection function on each element of the input sequence.

Type

System.Nullable<Int32>

Character

public, static

Parameters

Name	Type	Description
source	System.Linq.IQueryable<TSource>
selector	System.Linq.Expressions.Expression<System.Func<TSource,System.Nullable<Int32>>>

Attributes

Name	Value/Assignment
ExtensionAttribute

Tags

01892ABD01, 02E3ABA98D, 0322962271

Sum<TSource>(IQueryable<TSource>,Func<TSource,Int64>>)

Category

Method

Description

Computes the sum of the sequence of System.Int64 values that is obtained by invoking a projection function on each element of the input sequence.

Type

Int64

Character

public, static

Parameters

Name	Type	Description
source	System.Linq.IQueryable<TSource>
selector	System.Linq.Expressions.Expression<System.Func<TSource,Int64>>

Attributes

Name	Value/Assignment
ExtensionAttribute

Tags

01892ABD01, 02E3ABA98D, 0322962271

Sum<TSource>(IQueryable<TSource>,Func<TSource,Nullable<Int64>>>)

Category

Method

Description

Computes the sum of the sequence of nullable System.Int64 values that is obtained by invoking a projection function on each element of the input sequence.

Type

System.Nullable<Int64>

Character

public, static

Parameters

Name	Type	Description
source	System.Linq.IQueryable<TSource>
selector	System.Linq.Expressions.Expression<System.Func<TSource,System.Nullable<Int64>>>

Attributes

Name	Value/Assignment
ExtensionAttribute

Tags

01892ABD01, 02E3ABA98D, 0322962271

Sum<TSource>(IQueryable<TSource>,Func<TSource,Single>>)

Category

Method

Description

Computes the sum of the sequence of System.Single values that is obtained by invoking a projection function on each element of the input sequence.

Type

Single

Character

public, static

Parameters

Name	Type	Description
source	System.Linq.IQueryable<TSource>
selector	System.Linq.Expressions.Expression<System.Func<TSource,Single>>

Attributes

Name	Value/Assignment
ExtensionAttribute

Tags

01892ABD01, 02E3ABA98D, 0322962271

Sum<TSource>(IQueryable<TSource>,Func<TSource,Nullable<Single>>>)

Category

Method

Description

Computes the sum of the sequence of nullable System.Single values that is obtained by invoking a projection function on each element of the input sequence.

Type

System.Nullable<Single>

Character

public, static

Parameters

Name	Type	Description
source	System.Linq.IQueryable<TSource>
selector	System.Linq.Expressions.Expression<System.Func<TSource,System.Nullable<Single>>>

Attributes

Name	Value/Assignment
ExtensionAttribute

Tags

01892ABD01, 02E3ABA98D, 0322962271

Sum<TSource>(IQueryable<TSource>,Func<TSource,Double>>)

Category

Method

Description

Computes the sum of the sequence of System.Double values that is obtained by invoking a projection function on each element of the input sequence.

Type

Double

Character

public, static

Parameters

Name	Type	Description
source	System.Linq.IQueryable<TSource>
selector	System.Linq.Expressions.Expression<System.Func<TSource,Double>>

Attributes

Name	Value/Assignment
ExtensionAttribute

Tags

01892ABD01, 02E3ABA98D, 0322962271

Sum<TSource>(IQueryable<TSource>,Func<TSource,Nullable<Double>>>)

Category

Method

Description

Computes the sum of the sequence of nullable System.Double values that is obtained by invoking a projection function on each element of the input sequence.

Type

System.Nullable<Double>

Character

public, static

Parameters

Name	Type	Description
source	System.Linq.IQueryable<TSource>
selector	System.Linq.Expressions.Expression<System.Func<TSource,System.Nullable<Double>>>

Attributes

Name	Value/Assignment
ExtensionAttribute

Tags

01892ABD01, 02E3ABA98D, 0322962271

Sum<TSource>(IQueryable<TSource>,Func<TSource,Decimal>>)

Category

Method

Description

Computes the sum of the sequence of System.Decimal values that is obtained by invoking a projection function on each element of the input sequence.

Type

Decimal

Character

public, static

Parameters

Name	Type	Description
source	System.Linq.IQueryable<TSource>
selector	System.Linq.Expressions.Expression<System.Func<TSource,Decimal>>

Attributes

Name	Value/Assignment
ExtensionAttribute

Tags

01892ABD01, 02E3ABA98D, 0322962271

Sum<TSource>(IQueryable<TSource>,Func<TSource,Nullable<Decimal>>>)

Category

Method

Description

Computes the sum of the sequence of nullable System.Decimal values that is obtained by invoking a projection function on each element of the input sequence.

Type

System.Nullable<Decimal>

Character

public, static

Parameters

Name	Type	Description
source	System.Linq.IQueryable<TSource>
selector	System.Linq.Expressions.Expression<System.Func<TSource,System.Nullable<Decimal>>>

Attributes

Name	Value/Assignment
ExtensionAttribute

Tags

01892ABD01, 02E3ABA98D, 0322962271

Software for developers

.Net Components
Delphi Components
Software for Android Developers

More information resources

WinAPI Programmer's Reference
Unix Manual Pages
Delphi Examples

Databases for Amazon shops developers

Amazon Categories Database
Browse Nodes Database