DataRowState 열거형

정의

DataRow 개체의 상태를 가져옵니다.Gets the state of a DataRow object.

이 열거형에는 멤버 값의 비트 조합을 허용하는 FlagsAttribute 특성이 있습니다.

public enum class DataRowState
[System.Flags]
public enum DataRowState
type DataRowState = 
Public Enum DataRowState
상속
DataRowState
특성

필드

Added 4

행이 DataRowCollection에 추가되었으며 AcceptChanges()는 호출되지 않았습니다.The row has been added to a DataRowCollection, and AcceptChanges() has not been called.

Deleted 8

Delete()DataRow 메서드를 사용하여 행을 삭제했습니다.The row was deleted using the Delete() method of the DataRow.

Detached 1

행이 만들어졌지만 DataRowCollection의 일부는 아닙니다.The row has been created but is not part of any DataRowCollection. DataRow는 만들어진 직후 및 컬렉션에 추가되기 전 또는 컬렉션에서 제거된 경우 이 상태가 됩니다.A DataRow is in this state immediately after it has been created and before it is added to a collection, or if it has been removed from a collection.

Modified 16

행이 수정되었으며 AcceptChanges()는 호출되지 않았습니다.The row has been modified and AcceptChanges() has not been called.

Unchanged 2

AcceptChanges()가 마지막으로 호출된 이후에 행이 변경되지 않았습니다.The row has not changed since AcceptChanges() was last called.

예제

다음 예에서는 먼저 하나의 열이 있는 새 DataTable를 만든 다음 단일 DataRow를 만듭니다.The following example first creates a new DataTable with one column, then creates a single DataRow. DataRow 생성, 추가, 수정 및 삭제 되 면 해당 RowState 인쇄 됩니다.As the DataRow is created, added, modified, and deleted, its RowState is printed.

private void DemonstrateRowState() {
   //Run a function to create a DataTable with one column.
   DataTable myTable = MakeTable();
   DataRow myRow;

   // Create a new DataRow.
   myRow = myTable.NewRow();
   // Detached row.
   Console.WriteLine("New Row " + myRow.RowState);

   myTable.Rows.Add(myRow);
   // New row.
   Console.WriteLine("AddRow " + myRow.RowState);

   myTable.AcceptChanges();
   // Unchanged row.
   Console.WriteLine("AcceptChanges " + myRow.RowState);

   myRow["FirstName"] = "Scott";
   // Modified row.
   Console.WriteLine("Modified " + myRow.RowState);

   myRow.Delete();
   // Deleted row.
   Console.WriteLine("Deleted " + myRow.RowState);
}

private DataTable MakeTable(){
   // Make a simple table with one column.
   DataTable dt = new DataTable("myTable");
   DataColumn dcFirstName = new DataColumn("FirstName", Type.GetType("System.String"));
   dt.Columns.Add(dcFirstName);
   return dt;
}
Private Sub DemonstrateRowState()
    'Run a function to create a DataTable with one column.
    Dim dataTable As DataTable = MakeTable()
    Dim dataRow As DataRow

    ' Create a new DataRow.
    dataRow = dataTable.NewRow()
    ' Detached row.
    Console.WriteLine(String.Format("New Row {0}", dataRow.RowState))

    dataTable.Rows.Add(dataRow)
    ' New row.
    Console.WriteLine(String.Format("AddRow {0}", dataRow.RowState))

    dataTable.AcceptChanges()
    ' Unchanged row.
    Console.WriteLine(String.Format("AcceptChanges {0}", dataRow.RowState))

    dataRow("FirstName") = "Scott"
    ' Modified row.
    Console.WriteLine(String.Format("Modified {0}", dataRow.RowState))

    dataRow.Delete()
    ' Deleted row.
    Console.WriteLine(String.Format("Deleted {0}", dataRow.RowState))
End Sub

Private Function MakeTable() As DataTable
    ' Make a simple table with one column.
    Dim dt As New DataTable("dataTable")
    Dim firstName As New DataColumn("FirstName", _
       Type.GetType("System.String"))
    dt.Columns.Add(firstName)
    Return dt
End Function

설명

DataRowState 열거형은 DataRow 클래스의 RowState 속성에 의해 반환 됩니다.The DataRowState enumeration is returned by the RowState property of the DataRow class.

적용 대상

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