BindingSource.Current Propiedad

public:
 property System::Object ^ Current { System::Object ^ get(); };

[System.ComponentModel.Browsable(false)]
public object Current { get; }

[System.ComponentModel.Browsable(false)]
public object? Current { get; }

[<System.ComponentModel.Browsable(false)>]
member this.Current : obj

Public ReadOnly Property Current As Object

Valor de propiedad

Object que representa el elemento actual de la lista subyacente representada por la propiedad List, o bien, null si la lista no tiene ningún elemento.

Atributos

BrowsableAttribute

Ejemplos

En el ejemplo de código siguiente se muestra la Current propiedad . Para ejecutar este ejemplo, pegue el código en un formulario y llame al PopulateBindingSourceWithFonts método desde el método de control de eventos del Load formulario.

  public BindingSource bindingSource1 = new BindingSource();
  TextBox box1 = new TextBox();

  private void PopulateBindingSourceWithFonts()
  {
      bindingSource1.CurrentChanged += new EventHandler(bindingSource1_CurrentChanged);
      bindingSource1.Add(new Font(FontFamily.Families[2], 8.0F));
      bindingSource1.Add(new Font(FontFamily.Families[4], 9.0F));
      bindingSource1.Add(new Font(FontFamily.Families[6], 10.0F));
      bindingSource1.Add(new Font(FontFamily.Families[8], 11.0F));
      bindingSource1.Add(new Font(FontFamily.Families[10], 12.0F));
      DataGridView view1 = new DataGridView();
      view1.DataSource = bindingSource1;
      view1.AutoGenerateColumns = true;
      view1.Dock = DockStyle.Top;
      this.Controls.Add(view1);
      box1.Dock = DockStyle.Bottom;
      box1.Text = "Sample Text";
      this.Controls.Add(box1);
      box1.DataBindings.Add("Text", bindingSource1, "Name");
      view1.Columns[7].DisplayIndex = 0;
  }

  void bindingSource1_CurrentChanged(object sender, EventArgs e)
  {
      box1.Font = (Font)bindingSource1.Current;
  }

 Private WithEvents bindingSource1 As New BindingSource()
 Private box1 As New TextBox()

 
 Private Sub PopulateBindingSourceWithFonts()
   
     bindingSource1.Add(New Font(FontFamily.Families(2), 8.0F))
     bindingSource1.Add(New Font(FontFamily.Families(4), 9.0F))
     bindingSource1.Add(New Font(FontFamily.Families(6), 10.0F))
     bindingSource1.Add(New Font(FontFamily.Families(8), 11.0F))
     bindingSource1.Add(New Font(FontFamily.Families(10), 12.0F))
     Dim view1 As New DataGridView()
     view1.DataSource = bindingSource1
     view1.AutoGenerateColumns = True
     view1.Dock = DockStyle.Top
     Me.Controls.Add(view1)
     box1.Dock = DockStyle.Bottom
     box1.Text = "Sample Text"
     Me.Controls.Add(box1)
     view1.Columns("Name").DisplayIndex = 0
     box1.DataBindings.Add("Text", bindingSource1, "Name")
     
 End Sub
  
 Sub bindingSource1_CurrentChanged(ByVal sender As Object, ByVal e As EventArgs) _
     Handles bindingSource1.CurrentChanged
     box1.Font = CType(bindingSource1.Current, Font)
 End Sub

Comentarios

Utilice la Current propiedad para tener acceso al elemento actual, pero use la List propiedad para obtener toda la lista. Para determinar el tipo del objeto actual, use los GetTypemétodos , o ToString .

Para cambiar el elemento actual, establezca la Position propiedad en un nuevo valor entero o use uno de los métodos de navegación como MoveNext.

Se aplica a

Consulte también

• List
• Position
• Count