IRelationalCommand.ExecuteScalar Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Overloads
| ExecuteScalar(RelationalCommandParameterObject) |
Executes the command with a single scalar result. |
| ExecuteScalar(IRelationalConnection, IReadOnlyDictionary<String,Object>) |
Executes the command with a single scalar result. |
| ExecuteScalar(IRelationalConnection, IReadOnlyDictionary<String,Object>, Boolean) |
Obsolete.
Executes the command with a single scalar result. |
ExecuteScalar(RelationalCommandParameterObject)
Executes the command with a single scalar result.
public object ExecuteScalar (Microsoft.EntityFrameworkCore.Storage.RelationalCommandParameterObject parameterObject);public object? ExecuteScalar (Microsoft.EntityFrameworkCore.Storage.RelationalCommandParameterObject parameterObject);abstract member ExecuteScalar : Microsoft.EntityFrameworkCore.Storage.RelationalCommandParameterObject -> objPublic Function ExecuteScalar (parameterObject As RelationalCommandParameterObject) As ObjectParameters
- parameterObject
- RelationalCommandParameterObject
Parameters for this method.
Returns
The result of the command.
Applies to
ExecuteScalar(IRelationalConnection, IReadOnlyDictionary<String,Object>)
Executes the command with a single scalar result.
public object ExecuteScalar (Microsoft.EntityFrameworkCore.Storage.IRelationalConnection connection, System.Collections.Generic.IReadOnlyDictionary<string,object> parameterValues);abstract member ExecuteScalar : Microsoft.EntityFrameworkCore.Storage.IRelationalConnection * System.Collections.Generic.IReadOnlyDictionary<string, obj> -> objPublic Function ExecuteScalar (connection As IRelationalConnection, parameterValues As IReadOnlyDictionary(Of String, Object)) As ObjectParameters
- connection
- IRelationalConnection
The connection to execute against.
- parameterValues
- IReadOnlyDictionary<String,Object>
The values for the parameters.
Returns
The result of the command.
Applies to
ExecuteScalar(IRelationalConnection, IReadOnlyDictionary<String,Object>, Boolean)
Caution
Use overload without 'manageConnection' parameter
Executes the command with a single scalar result.
public object ExecuteScalar (Microsoft.EntityFrameworkCore.Storage.IRelationalConnection connection, System.Collections.Generic.IReadOnlyDictionary<string,object> parameterValues = default, bool manageConnection = true);[System.Obsolete("Use overload without 'manageConnection' parameter")]
public object ExecuteScalar (Microsoft.EntityFrameworkCore.Storage.IRelationalConnection connection, System.Collections.Generic.IReadOnlyDictionary<string,object> parameterValues, bool manageConnection);abstract member ExecuteScalar : Microsoft.EntityFrameworkCore.Storage.IRelationalConnection * System.Collections.Generic.IReadOnlyDictionary<string, obj> * bool -> obj[<System.Obsolete("Use overload without 'manageConnection' parameter")>]
abstract member ExecuteScalar : Microsoft.EntityFrameworkCore.Storage.IRelationalConnection * System.Collections.Generic.IReadOnlyDictionary<string, obj> * bool -> objPublic Function ExecuteScalar (connection As IRelationalConnection, Optional parameterValues As IReadOnlyDictionary(Of String, Object) = Nothing, Optional manageConnection As Boolean = true) As ObjectPublic Function ExecuteScalar (connection As IRelationalConnection, parameterValues As IReadOnlyDictionary(Of String, Object), manageConnection As Boolean) As ObjectParameters
- connection
- IRelationalConnection
The connection to execute against.
- parameterValues
- IReadOnlyDictionary<String,Object>
The values for the parameters.
- manageConnection
- Boolean
A value indicating whether to open and close the connection as needed.
Returns
The result of the command.
- Attributes
Applies to
Entity Framework