DataRow.ItemArray DataRow.ItemArray DataRow.ItemArray DataRow.ItemArray Property

定義

配列を使用してこの行のすべての値を取得または設定します。Gets or sets all the values for this row through an array.

public:
 property cli::array <System::Object ^> ^ ItemArray { cli::array <System::Object ^> ^ get(); void set(cli::array <System::Object ^> ^ value); };
public object[] ItemArray { get; set; }
member this.ItemArray : obj[] with get, set
Public Property ItemArray As Object()

プロパティ値

Object[]

Object 型の配列。An array of type Object.

例外

配列がテーブルの列数より大きいです。The array is larger than the number of columns in the table.

配列内の値が、各値の DataType 内の DataColumn と一致していません。A value in the array does not match its DataType in its respective DataColumn.

編集が制約に違反しています。An edit broke a constraint.

編集によって読み取り専用の列の値を変更しようとしています。An edit tried to change the value of a read-only column.

編集によって、AllowDBNull オブジェクトの DataColumnfalse である列に null 値を入力しようとしています。An edit tried to put a null value in a column where AllowDBNull of the DataColumn object is false.

次の例を使用して値を取得および設定方法を示して、ItemArrayプロパティ。The following examples show how to get and set values using the ItemArray property.

private void CreateRowsWithItemArray()
{
    // Make a DataTable using the function below.
    DataTable dt = MakeTableWithAutoIncrement();
    DataRow relation;
    // Declare the array variable.
    object [] rowArray = new object[2];
    // Create 10 new rows and add to DataRowCollection.
    for(int i = 0; i <10; i++)
    {
        rowArray[0]=null;
        rowArray[1]= "item " + i;
        relation = dt.NewRow();
        relation.ItemArray = rowArray;
        dt.Rows.Add(relation);
    }
    PrintTable(dt);
}

private DataTable MakeTableWithAutoIncrement()
{
    // Make a table with one AutoIncrement column.
    DataTable table = new DataTable("table");
    DataColumn idColumn = new DataColumn("id", 
        Type.GetType("System.Int32"));
    idColumn.AutoIncrement = true;
    idColumn.AutoIncrementSeed = 10;
    table.Columns.Add(idColumn);

    DataColumn firstNameColumn = new DataColumn("Item", 
        Type.GetType("System.String"));
    table.Columns.Add(firstNameColumn);
    return table;
}

private void PrintTable(DataTable table)
{
    foreach(DataRow row in table.Rows)
    {
        foreach(DataColumn column in table.Columns)
        {
            Console.WriteLine(row[column]);
        }
    }
}
Private Sub CreateRowsWithItemArray()
    ' Make a DataTable using the function below.
    Dim dt As DataTable = MakeTableWithAutoIncrement()
    Dim relation As DataRow

    ' Declare the array variable.
    Dim rowArray(1) As Object

    ' Create 10 new rows and add to DataRowCollection.
    Dim i As Integer
    For i = 0 to 9
       rowArray(0) = DBNull.Value
       rowArray(1)= "item " & i.ToString()
       relation = dt.NewRow()
       relation.ItemArray = rowArray
       dt.Rows.Add(relation)
    Next
    PrintTable(dt)
End Sub
 
Private Function MakeTableWithAutoIncrement() As DataTable
    ' Make a table with one AutoIncrement column.
    Dim table As DataTable = New DataTable("table")
    Dim idColumn As DataColumn = New DataColumn("id", _
        Type.GetType("System.Int32"))
    idColumn.AutoIncrement = True
    idColumn.AutoIncrementSeed = 10
    table.Columns.Add (idColumn)
    
    Dim firstNameColumn As DataColumn = New DataColumn( _
        "Item", Type.GetType("System.String"))
    table.Columns.Add(firstNameColumn)
    MakeTableWithAutoIncrement = table
End Function
 
Private Sub PrintTable(table As DataTable)
    Dim row As DataRow
    Dim column As DataColumn
    For Each row in table.Rows
       For Each column in table.Columns
          Console.WriteLine(row(column))
       Next
    Next
End Sub

注釈

このプロパティを使用して、配列を使用してこの行の値を取得または設定することができます。You can use this property to set or get values for this row through an array. このプロパティを使用して値を設定する場合、配列は同じサイズと列のコレクションと順序付けが必要です。If you use this property to set values, the array must have the same size and ordering as the column collection. 渡すnullで、ItemArray値が指定されていないことを示します。Passing null in the ItemArray indicates that no value was specified.

ユーザーが例外を生成、ColumnChangingイベントまたはRowChangingイベント。Users can generate exceptions in the ColumnChanging event or the RowChanging event.

適用対象

こちらもご覧ください