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; }
member this.Current : obj
Public ReadOnly Property Current As Object

プロパティ値

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

次のコード例は、Current プロパティを示しています。The following code example demonstrates the Current property. この例を実行するには、コードをフォームに貼り付け、フォームの Load イベント処理メソッドから PopulateBindingSourceWithFonts メソッドを呼び出します。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

Current プロパティを使用して現在の項目にアクセスしますが、List プロパティを使用して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、または ToString メソッドを使用します。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は、Position プロパティを新しい整数値に設定するか、MoveNextなどのナビゲーションメソッドのいずれかを使用します。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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