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EdmFunctions.StartsWith Method

.NET Framework 4.5

Creates a DbFunctionExpression that invokes the canonical 'StartsWith' function with the specified arguments, which must each have a string result type. The result type of the expression is Boolean.

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

public static DbFunctionExpression StartsWith(
	this DbExpression stringArgument,
	DbExpression prefix
)

Parameters

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

An expression that specifies the string that is searched at the start for string prefix.

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

An expression that specifies the target string that is searched for at the start of stringArgument.

Return Value

Type: System.Data.Common.CommandTrees.DbFunctionExpression
A new DbFunctionExpression that returns a Boolean value indicating whether or not stringArgument starts with prefix.

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).

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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