Class ColumnsExpression

Expression which represent projection part of sql select.

Inheritance

System.Object

System.Linq.Expressions.Expression

QueryExpression

ColumnsExpression

Inherited Members

QueryExpression.NodeType

QueryExpression.Type

Namespace: Kros.KORM.Query.Expressions

Assembly: Kros.KORM.dll

Syntax

public class ColumnsExpression : QueryExpression

Constructors

ColumnsExpression(String)

Initializes a new instance of the ColumnsExpression class.

Declaration

public ColumnsExpression(string columns)

Parameters

Type	Name	Description
System.String	columns	The columns part of sql.

Remarks

Columns are separate by ,

ColumnsExpression(String[])

Initializes a new instance of the ColumnsExpression class.

Declaration

public ColumnsExpression(params string[] columns)

Parameters

Type	Name	Description
System.String[]	columns	The columns.

Properties

ColumnsPart

Gets the columns part.

Declaration

public string ColumnsPart { get; }

Property Value

Type	Description
System.String

Methods

Accept(ExpressionVisitor)

Dispatches to the specific visit method for this node type. For example, System.Linq.Expressions.MethodCallExpression calls the System.Linq.Expressions.ExpressionVisitor.VisitMethodCall(System.Linq.Expressions.MethodCallExpression).

Declaration

protected override Expression Accept(ExpressionVisitor visitor)

Parameters

Type	Name	Description
System.Linq.Expressions.ExpressionVisitor	visitor	The visitor to visit this node with.

Returns

Type	Description
System.Linq.Expressions.Expression	The result of visiting this node.

Overrides

System.Linq.Expressions.Expression.Accept(System.Linq.Expressions.ExpressionVisitor)

Create<T, TResult>(Func<T, TResult>, TableInfo)

Creates the ColumnsExpression by selector.

Declaration

public static ColumnsExpression Create<T, TResult>(Func<T, TResult> selector, TableInfo tableInfo)

Parameters

Type	Name	Description
System.Func<T, TResult>	selector	The selector.
TableInfo	tableInfo	The table information.

Returns

Type	Description
ColumnsExpression	ColumnsExpression

Type Parameters

Name	Description
T	Type of model class.
TResult	The type of the result.

See Also

ISqlExpressionVisitor