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DbExpressionBuilder.GroupBindAs Method

.NET Framework 4.6 and 4.5

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.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type DbExpression. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

ExceptionCondition
ArgumentNullException

input, varName or groupVarName is null.

ArgumentException

input does not have a collection result type.

.NET Framework

Supported in: 4.6, 4.5
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