DataTypeInfos.Item Property

Articolo
12/15/2008

Returns a DataTypeInfo object from the collection.

Spazio dei nomi: Microsoft.SqlServer.Dts.Runtime
Assembly : Microsoft.SqlServer.ManagedDTS (in microsoft.sqlserver.manageddts.dll)

Sintassi

'Dichiarazione
Public ReadOnly Default Property Item ( _
    index As Object _
) As DataTypeInfo

public DataTypeInfo this [
    Object index
] { get; }

public:
property DataTypeInfo^ default [Object^] {
    DataTypeInfo^ get (Object^ index);
}

/** @property */
public DataTypeInfo get_Item (Object index)

Parametri

index
The index of the DataTypeInfo object to retrieve from the collection.

Valore proprietà

A DataTypeInfo object.

Osservazioni

If the call to the Contains method returns true, you can access the specified element in the collection by using the syntax DataTupeInfos[index]. If the Contains method returns false, this property throws an exception. In C#, this property is the indexer for the DataTypeInfos class.

Esempio

The following code sample retrieves an item from the collection using two methods. The first method uses the dataInfos[0] syntax to retrieve the entire object located in the first position of the collection and place it in the dtInfo object. After this is done you can retrieve all properties from the dtInfo object as usual. The second method demonstrates how to retrieve a specific property from the first object in the collection.

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.SqlServer.Dts.Runtime;

namespace DataTypeInfos_GetEnum_Current
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create the DataTypeInfos collection.
            DataTypeInfos dataInfos = new Application().DataTypeInfos;

            //Using the Item method syntax of [x], obtain the first entry.
            DataTypeInfo dtInfo = dataInfos[0];
            String nameOfFirstItem = dataInfos[0].TypeName;

            //Print the name of the task object located at position [0].
            Console.WriteLine("The TypeEnumName of the first item is: {0}", dtInfo.TypeEnumName);
            Console.WriteLine("The TypeName of the first task is: {0}", nameOfFirstItem);
        }
    }
}

Imports System
Imports System.Collections.Generic
Imports System.Text
Imports Microsoft.SqlServer.Dts.Runtime
 
Namespace DataTypeInfos_GetEnum_Current
    Class Program
        Shared  Sub Main(ByVal args() As String)
            'Create the DataTypeInfos collection.
            Dim dataInfos As DataTypeInfos =  New Application().DataTypeInfos 
 
            'Using the Item method syntax of [x], obtain the first entry.
            Dim dtInfo As DataTypeInfo =  dataInfos(0) 
            Dim nameOfFirstItem As String =  dataInfos(0).TypeName 
 
            'Print the name of the task object located at position [0].
            Console.WriteLine("The TypeEnumName of the first item is: {0}", dtInfo.TypeEnumName)
            Console.WriteLine("The TypeName of the first task is: {0}", nameOfFirstItem)
        End Sub
    End Class
End Namespace

Sample Output:

The TypeEnumName of the first item is: DT_R4

The TypeName of the first task is: float

Thread Safety

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Piattaforme

Piattaforme di sviluppo

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

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