CurrencyManager.Refresh Metode

Definisi

Ruang nama:

System.Windows.Forms

Rakitan:

System.Windows.Forms.dll

Sumber:

CurrencyManager.cs

Memaksa repopulasi daftar terikat data.

public:
 void Refresh();

public void Refresh();

member this.Refresh : unit -> unit

Public Sub Refresh ()

Contoh

Contoh kode berikut membuat array dan mengikatnya ke TextBox kontrol, lalu mengubah satu nilai. Metode Refresh ini dapat dipanggil untuk memperbarui nilai yang ditampilkan oleh TextBox kontrol.

void DemonstrateRefresh()
{
   
   // Create an array with ten elements and bind to a TextBox.
   array<String^>^myArray = gcnew array<String^>(10);
   for ( int i = 0; i < 10; i++ )
   {
      myArray[ i ] = String::Format( "item {0}", i );

   }
   textBox1->DataBindings->Add( "Text", myArray, "" );
   
   // Change one value.
   myArray[ 0 ] = "New value";
   
   // Uncomment the next line to refresh the CurrencyManager.
   // RefreshGrid(myArray);
}

void RefreshGrid( Object^ dataSource )
{
   CurrencyManager^ myCurrencyManager = dynamic_cast<CurrencyManager^>(this->BindingContext[ dataSource ]);
   myCurrencyManager->Refresh();
}

private void DemonstrateRefresh(){
    // Create an array with ten elements and bind to a TextBox.
    string[] myArray= new string[10];
    for(int i = 0; i <10; i++){
       myArray[i] = "item " + i;
    }
    textBox1.DataBindings.Add ("Text",myArray,"");
    // Change one value.
    myArray[0]= "New value";

    // Uncomment the next line to refresh the CurrencyManager.
    // RefreshGrid(myArray);
 }
 private void RefreshGrid(object dataSource){
    CurrencyManager myCurrencyManager = (CurrencyManager)this.BindingContext[dataSource];
    myCurrencyManager.Refresh();
 }

Private Sub DemonstrateRefresh()
    ' Create an array with ten elements and bind to a TextBox.
    Dim myArray(9) As String
    Dim i As Integer
    For i = 0 To 9
        myArray(i) = "item " & i
    Next i
    textBox1.DataBindings.Add("Text", myArray, "")
    ' Change one value.
    myArray(0) = "New value"

    ' Uncomment the next line to refresh the CurrencyManager.
    ' RefreshGrid(myArray);

End Sub

Private Sub RefreshGrid(dataSource As Object)
    Dim myCurrencyManager As CurrencyManager = CType(Me.BindingContext(dataSource), CurrencyManager)
    myCurrencyManager.Refresh()
End Sub

Keterangan

Refresh Gunakan metode ketika sumber data tidak mendukung pemberitahuan saat diubah (misalnya, jika itu adalah Array).

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