EdmFunctions.IndexOf(DbExpression, DbExpression) Method

Definition

Creates a DbFunctionExpression that invokes the canonical 'IndexOf' function with the specified arguments, which must each have a string result type. The result type of the expression is Edm.Int32.

public:
[System::Runtime::CompilerServices::Extension]
 static System::Data::Common::CommandTrees::DbFunctionExpression ^ IndexOf(System::Data::Common::CommandTrees::DbExpression ^ searchString, System::Data::Common::CommandTrees::DbExpression ^ stringToFind);
public static System.Data.Common.CommandTrees.DbFunctionExpression IndexOf (this System.Data.Common.CommandTrees.DbExpression searchString, System.Data.Common.CommandTrees.DbExpression stringToFind);
static member IndexOf : System.Data.Common.CommandTrees.DbExpression * System.Data.Common.CommandTrees.DbExpression -> System.Data.Common.CommandTrees.DbFunctionExpression
<Extension()>
Public Function IndexOf (searchString As DbExpression, stringToFind As DbExpression) As DbFunctionExpression

Parameters

searchString
DbExpression

An expression that specifies the string to search for stringToFind.

stringToFind
DbExpression

An expression that specifies the string to locate within searchString should be checked.

Returns

DbFunctionExpression

A new DbFunctionExpression that returns the first index of stringToFind in searchString.

Exceptions

searchString stringToFind

searchString stringToFind

Remarks

The index returned by IndexOf is <b>1-based</b>.

Applies to