Class ThrowHelper

Provides methods to throw common exceptions.

Inheritance

object

ThrowHelper

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Namespace: RentADeveloper.DbConnectionPlus

Assembly: RentADeveloper.DbConnectionPlus.dll

Syntax

public static class ThrowHelper

Methods

ThrowConfigurationIsFrozenException()

Throws an InvalidOperationException indicating that the configuration of DbConnectionPlus is frozen and can no longer be modified.

Declaration

[DoesNotReturn]
public static void ThrowConfigurationIsFrozenException()

Exceptions

Type	Condition
InvalidOperationException	Always thrown.

ThrowDatabaseAdapterDoesNotSupportTemporaryTablesException(IDatabaseAdapter)

Throws an NotSupportedException indicating that an attempt was made to use the temporary tables feature of DbConnectionPlus, but the database adapter for the current database system does not support temporary tables.

Declaration

[DoesNotReturn]
public static void ThrowDatabaseAdapterDoesNotSupportTemporaryTablesException(IDatabaseAdapter databaseAdapter)

Parameters

Type	Name	Description
IDatabaseAdapter	databaseAdapter	The database adapter that does not support temporary tables.

Exceptions

Type	Condition
NotSupportedException	Always thrown.

ThrowDatabaseOperationAffectedUnexpectedNumberOfRowsException(int, int, object)

Throws an DbUpdateConcurrencyException indicating that a concurrency violation was encountered while deleting or updating an entity in a database. A concurrency violation occurs when an unexpected number of rows are affected by a delete or update operation. This is usually because the data in the database has been modified since the entity has been loaded.

Declaration

[DoesNotReturn]
public static void ThrowDatabaseOperationAffectedUnexpectedNumberOfRowsException(int expectedNumberOfAffectedRows, int actualNumberOfAffectedRows, object entity)

Parameters

Type	Name	Description
int	expectedNumberOfAffectedRows	The expected number of affected rows.
int	actualNumberOfAffectedRows	The actual number of affected rows.
object	entity	The entity that was involved in the operation.

Exceptions

Type	Condition
DbUpdateConcurrencyException	Always thrown.

ThrowEntityTypeHasNoKeyPropertyException(Type)

Throws an ArgumentException indicating that the specified entity type has no key property.

Declaration

[DoesNotReturn]
public static void ThrowEntityTypeHasNoKeyPropertyException(Type entityType)

Parameters

Type	Name	Description
Type	entityType	The entity type that lacks a key property.

Exceptions

Type	Condition
ArgumentException	Always thrown.

ThrowInvalidEnumSerializationModeException<T>(EnumSerializationMode)

Throws an ArgumentOutOfRangeException indicating that the specified EnumSerializationMode is invalid.

Declaration

[DoesNotReturn]
public static T ThrowInvalidEnumSerializationModeException<T>(EnumSerializationMode enumSerializationMode)

Parameters

Type	Name	Description
EnumSerializationMode	enumSerializationMode	The EnumSerializationMode value that is invalid.

Returns

Type	Description
T

Type Parameters

Name	Description
T	The type parameter for the return value of this method. This just exists to satisfy the compiler when this method is used in an expression or when we must trick the compiler to believe a value is returned.

Exceptions

Type	Condition
ArgumentOutOfRangeException	Always thrown.

ThrowSqlStatementReturnedMoreThanOneRowException()

Throws an InvalidOperationException indicating that an SQL statement did return more than one row when it was expected to return just one.

Declaration

[DoesNotReturn]
public static void ThrowSqlStatementReturnedMoreThanOneRowException()

Exceptions

Type	Condition
InvalidOperationException	Always thrown.

ThrowSqlStatementReturnedNoRowsException()

Throws an InvalidOperationException indicating that an SQL statement did not return any rows when it was expected to.

Declaration

[DoesNotReturn]
public static void ThrowSqlStatementReturnedNoRowsException()

Exceptions

Type	Condition
InvalidOperationException	Always thrown.

ThrowWrongConnectionTypeException<TExpectedConnectionType, T>()

Throws an ArgumentOutOfRangeException indicating that the specified connection is not of the expected type.

Declaration

[DoesNotReturn]
public static T ThrowWrongConnectionTypeException<TExpectedConnectionType, T>() where TExpectedConnectionType : DbConnection

Returns

Type	Description
T

Type Parameters

Name	Description
TExpectedConnectionType	The type of connection that was expected.
T	The type parameter for the return value of this method. This just exists to satisfy the compiler when this method is used in an expression or when we must trick the compiler to believe a value is returned.

Exceptions

Type	Condition
ArgumentOutOfRangeException	Always thrown.

ThrowWrongTransactionTypeException<TExpectedTransactionType, T>()

Throws an ArgumentOutOfRangeException indicating that the specified transaction is not of the expected type.

Declaration

[DoesNotReturn]
public static T ThrowWrongTransactionTypeException<TExpectedTransactionType, T>() where TExpectedTransactionType : DbTransaction

Returns

Type	Description
T

Type Parameters

Name	Description
TExpectedTransactionType	The type of transaction that was expected.
T	The type parameter for the return value of this method. This just exists to satisfy the compiler when this method is used in an expression or when we must trick the compiler to believe a value is returned.

Exceptions

Type	Condition
ArgumentOutOfRangeException	Always thrown.