DataTypeInfos.Item Property

Returns a DataTypeInfo object from the collection.

命名空間: Microsoft.SqlServer.Dts.Runtime
組件: Microsoft.SqlServer.ManagedDTS (in microsoft.sqlserver.manageddts.dll)

語法

'宣告
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)

參數

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

屬性值

A DataTypeInfo object.

備註

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.

範例

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

執行緒安全性

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.

平台

開發平台

如需受支援的平台清單，請參閱＜安裝 SQL Server 2005 的硬體和軟體需求＞。

目標平台

如需受支援的平台清單，請參閱＜安裝 SQL Server 2005 的硬體和軟體需求＞。

請參閱

參考

DataTypeInfos Class
DataTypeInfos Members
Microsoft.SqlServer.Dts.Runtime Namespace