DataTypeInfoEnumerator.Reset Método

public:
 virtual void Reset();

public void Reset ();

abstract member Reset : unit -> unit
override this.Reset : unit -> unit

Public Sub Reset ()

Implementações

Exemplos

O exemplo de código a seguir cria um enumerador e, em seguida, usa o , MoveNexte Reset os Currentmétodos para navegar pela coleção.

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;  

            //Create the enumerator.  
            DataTypeInfoEnumerator myEnumerator = dataInfos.GetEnumerator();  
            Console.WriteLine("The collection contains the following values:");  
            int i = 0;  
            DataTypeInfo dtiObject;  
            while ((myEnumerator.MoveNext()) && (myEnumerator.Current != null))  
            {  
                dtiObject = (DataTypeInfo)myEnumerator.Current;  
                Console.WriteLine("[{0}] {1} {2}", i++, dtiObject.TypeName, dtiObject.TypeEnumName);  
            }  
            // Reset puts the index pointer before the beginning.  
            // Do not retrieve from the collection until MoveNext is called.  
            myEnumerator.Reset();  
            myEnumerator.MoveNext();  
            // Now that the enumerator has been reset, and moved to the  
            // first item in the collection, show the first item.  
            dtiObject = (DataTypeInfo)myEnumerator.Current;  
            Console.WriteLine("The first item in the enumerator after Reset:");  
            Console.WriteLine("{0}, {1}", dtiObject.TypeName, dtiObject.TypeEnumName);  
        }  
    }  
}  

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   

            'Create the enumerator.  
            Dim myEnumerator As DataTypeInfoEnumerator =  dataInfos.GetEnumerator()   
            Console.WriteLine("The collection contains the following values:")  
            Dim i As Integer =  0   
            Dim dtiObject As DataTypeInfo  
            While (myEnumerator.MoveNext()) &&(myEnumerator.Current <> Nothing)  
                dtiObject = CType(myEnumerator.Current, DataTypeInfo)  
                Console.WriteLine("[{0}] {1} {2}",i = Console.WriteLine("[{0}] {1} {2}",i + 1  
            End While  
            ' Reset puts the index pointer before the beginning.  
            ' Do not retrieve from the collection until MoveNext is called.  
            myEnumerator.Reset()  
            myEnumerator.MoveNext()  
            ' Now that the enumerator has been reset, and moved to the  
            ' first item in the collection, show the first item.  
            dtiObject = CType(myEnumerator.Current, DataTypeInfo)  
            Console.WriteLine("The first item in the enumerator after Reset:")  
            Console.WriteLine("{0}, {1}", dtiObject.TypeName, dtiObject.TypeEnumName)  
        End Sub  
    End Class  
End Namespace  

Saída de exemplo:

A coleção contém os seguintes valores:

[0] float DT_R4

[1] float de precisão dupla DT_R8

[2] moeda DT_CY

[3] data DT_DATE

[4] DT_BOOL booliano

[5] DT_DECIMAL decimais

[6] inteiro com sinal de byte único DT_I1

[7] inteiro sem sinal de byte único DT_UI1

[8] inteiro com sinal de dois bytes DT_I2

[9] inteiro sem sinal de dois bytes DT_UI2

[10] inteiro com sinal de quatro bytes DT_I4

[11] inteiro sem sinal de quatro bytes DT_UI4

[12] inteiro com sinal de oito bytes DT_I8

[13] inteiro sem sinal de oito bytes DT_UI8

[14] carimbo de data/hora do arquivo DT_FILETIME

[15] identificador exclusivo DT_GUID

[16] DT_BYTES de fluxo de bytes

[17] cadeia de caracteres DT_STR

[18] Cadeia de caracteres Unicode DT_WSTR

[19] DT_NUMERIC numérico

[20] data do banco de dados DT_DBDATE

[21] tempo do banco de dados DT_DBTIME

[22] DT_DBTIMESTAMP de carimbo de data/hora do banco de dados

[23] imagem DT_IMAGE

[24] fluxo de texto DT_TEXT

[25] Fluxo de texto Unicode DT_NTEXT

O primeiro item no enumerador após Redefinir:

float, DT_R4

Aplica-se a