BindingSource.Current プロパティ

定義

リスト内の現在の項目を取得します。Gets the current item in the list.

public:
 property System::Object ^ Current { System::Object ^ get(); };
[System.ComponentModel.Browsable(false)]
public object Current { get; }
[<System.ComponentModel.Browsable(false)>]
member this.Current : obj
Public ReadOnly Property Current As Object

プロパティ値

Object

Object プロパティで表される基底のリスト内の現在の項目を表す List。リストに項目がない場合は nullAn Object that represents the current item in the underlying list represented by the List property, or null if the list has no items.

属性

プロパティのコード例を次に示し Current ます。The following code example demonstrates the Current property. この例を実行するには、フォームにコードを貼り付け、 PopulateBindingSourceWithFonts フォームのイベント処理メソッドからメソッドを呼び出し Load ます。To run this example, paste the code into a form and call the PopulateBindingSourceWithFonts method from the form's Load event handling method.

  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

注釈

プロパティを使用して Current 現在の項目にアクセスしますが、プロパティを使用して List リスト全体を取得します。Use the Current property to access the current item, but use the List property to get the entire list. 現在のオブジェクトの型を確認するには、 GetType メソッド、メソッド、またはメソッドを使用し ToString ます。To determine the type of the current object, use the GetType, or ToString methods.

現在の項目を変更するに Position は、プロパティを新しい整数値に設定するか、などのいずれかのナビゲーションメソッドを使用し MoveNext ます。To change the current item, set the Position property to a new integral value, or use one of the navigation methods such as MoveNext.

適用対象

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