DbExpressionBuilder.GroupBindAs Method (DbExpression, String, String)

.NET Framework (current version)
 

Creates a new DbGroupExpressionBinding that uses the specified variable name and group variable names to bind the given expression.

Namespace:   System.Data.Common.CommandTrees.ExpressionBuilder
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

public static DbGroupExpressionBinding GroupBindAs(
	this DbExpression input,
	string varName,
	string groupVarName
)

Parameters

input
Type: System.Data.Common.CommandTrees.DbExpression

The expression to bind.

varName
Type: System.String

The variable name that should be used for the binding.

groupVarName
Type: System.String

The variable name that should be used to refer to the group when the new group expression binding is used in a group-by expression.

Return Value

Type: System.Data.Common.CommandTrees.DbGroupExpressionBinding

A new group expression binding with the specified expression, variable name and group variable name.

Exception Condition
ArgumentNullException

input, varName or groupVarName is null.

ArgumentException

input does not have a collection result type.

.NET Framework
Available since 4.5
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