方法: Windows フォーム BindingNavigator コントロールを使用してデータを移動する
Windows フォームで BindingNavigator コントロールが登場すると、開発者はエンド ユーザーに、作成したフォーム上の簡単なデータ ナビゲーションと操作ユーザー インターフェイスを提供できます。
BindingNavigator コントロールは、データ セット内の最初、最後、次、および前のレコードへのナビゲーション用に事前に構成されたボタンと、レコードを追加および削除するためのボタンを備えた ToolStrip コントロールです。 BindingNavigator コントロールへのボタンの追加は、ToolStrip コントロールであるため簡単です。 例については、「方法: Windows フォーム BindingNavigator コントロールに読み込み、保存、キャンセル ボタンを追加する」を参照してください。
BindingNavigator コントロールの各ボタンには、プログラムによって同じ機能を許可する BindingSource コンポーネントの対応するメンバーがあります。 たとえば、MoveFirstItem ボタンは、BindingSource コンポーネントの MoveFirst メソッドに対応し、DeleteItem ボタンは RemoveCurrent メソッドに対応します。 その結果、BindingNavigator コントロールでデータ レコード内を移動できるようにすることは、フォーム上の適切な BindingSource コンポーネントにその BindingSource プロパティを設定するのと同じくらい簡単です。
BindingNavigator コントロールを設定するには
bindingSource1
という名前の BindingSource コンポーネントと、textBox1
とtextBox2
という名前の 2 つの TextBox コントロールを追加します。bindingSource1
をデータにバインドし、テキスト ボックス コントロールをbindingSource1
にバインドします。 これを行うには、次のコードをフォームに貼り付け、フォームのコンストラクターまたはイベント処理メソッドからLoadData
Load 呼び出します。private void LoadData() { // The xml to bind to. string xml = @"<US><states>" + @"<state><name>Washington</name><capital>Olympia</capital></state>" + @"<state><name>Oregon</name><capital>Salem</capital></state>" + @"<state><name>California</name><capital>Sacramento</capital></state>" + @"<state><name>Nevada</name><capital>Carson City</capital></state>" + @"</states></US>"; // Convert the xml string to bytes and load into a memory stream. byte[] xmlBytes = Encoding.UTF8.GetBytes(xml); MemoryStream stream = new MemoryStream(xmlBytes, false); // Create a DataSet and load the xml into it. DataSet set = new DataSet(); set.ReadXml(stream); // Set the DataSource to the DataSet, and the DataMember // to state. bindingSource1.DataSource = set; bindingSource1.DataMember = "state"; textBox1.DataBindings.Add("Text", bindingSource1, "name"); textBox2.DataBindings.Add("Text", bindingSource1, "capital"); }
Private Sub LoadData() ' The xml to bind to. Dim xml As String = "<US><states>" + "<state><name>Washington</name><capital>Olympia</capital></state>" + "<state><name>Oregon</name><capital>Salem</capital></state>" + "<state><name>California</name><capital>Sacramento</capital></state>" + "<state><name>Nevada</name><capital>Carson City</capital></state>" + "</states></US>" ' Convert the xml string to bytes and load into a memory stream. Dim xmlBytes As Byte() = Encoding.UTF8.GetBytes(xml) Dim stream As New MemoryStream(xmlBytes, False) ' Create a DataSet and load the xml into it. Dim [set] As New DataSet() [set].ReadXml(stream) ' Set the DataSource to the DataSet, and the DataMember ' to state. bindingSource1.DataSource = [set] bindingSource1.DataMember = "state" textBox1.DataBindings.Add("Text", bindingSource1, "name") textBox2.DataBindings.Add("Text", bindingSource1, "capital") End Sub
bindingNavigator1
という名前の BindingNavigator コントロールをフォームに追加します。bindingNavigator1
の BindingSource プロパティをbindingSource1
に設定します。 これを行うには、デザイナーまたはコードを使用します。bindingNavigator1.BindingSource = bindingSource1;
bindingNavigator1.BindingSource = bindingSource1
例
次のコード例は、前述の手順の完全な例です。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Windows.Forms;
using System.Xml;
using System.IO;
using System.Text;
namespace System.Windows.Forms.BindingSourceCurrent
{
class Form1 : Form
{
private IContainer components;
private BindingNavigator bindingNavigator1;
private ToolStripButton bindingNavigatorAddNewItem;
private ToolStripLabel bindingNavigatorCountItem;
private ToolStripButton bindingNavigatorDeleteItem;
private ToolStripButton bindingNavigatorMoveFirstItem;
private ToolStripButton bindingNavigatorMovePreviousItem;
private ToolStripSeparator bindingNavigatorSeparator;
private ToolStripTextBox bindingNavigatorPositionItem;
private ToolStripSeparator bindingNavigatorSeparator1;
private ToolStripButton bindingNavigatorMoveNextItem;
private ToolStripButton bindingNavigatorMoveLastItem;
private TextBox textBox1;
private TextBox textBox2;
private BindingSource bindingSource1;
private ToolStripSeparator bindingNavigatorSeparator2;
public Form1()
{
InitializeComponent();
LoadData();
bindingNavigator1.BindingSource = bindingSource1;
}
private void LoadData()
{
// The xml to bind to.
string xml = @"<US><states>"
+ @"<state><name>Washington</name><capital>Olympia</capital></state>"
+ @"<state><name>Oregon</name><capital>Salem</capital></state>"
+ @"<state><name>California</name><capital>Sacramento</capital></state>"
+ @"<state><name>Nevada</name><capital>Carson City</capital></state>"
+ @"</states></US>";
// Convert the xml string to bytes and load into a memory stream.
byte[] xmlBytes = Encoding.UTF8.GetBytes(xml);
MemoryStream stream = new MemoryStream(xmlBytes, false);
// Create a DataSet and load the xml into it.
DataSet set = new DataSet();
set.ReadXml(stream);
// Set the DataSource to the DataSet, and the DataMember
// to state.
bindingSource1.DataSource = set;
bindingSource1.DataMember = "state";
textBox1.DataBindings.Add("Text", bindingSource1, "name");
textBox2.DataBindings.Add("Text", bindingSource1, "capital");
}
[STAThread]
public static void Main()
{
Application.EnableVisualStyles();
Application.Run(new Form1());
}
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
System.ComponentModel.ComponentResourceManager resources =
new System.ComponentModel.ComponentResourceManager(typeof(Form1));
this.bindingNavigator1 = new System.Windows.Forms.BindingNavigator(this.components);
this.bindingNavigatorAddNewItem = new System.Windows.Forms.ToolStripButton();
this.bindingNavigatorCountItem = new System.Windows.Forms.ToolStripLabel();
this.bindingNavigatorDeleteItem = new System.Windows.Forms.ToolStripButton();
this.bindingNavigatorMoveFirstItem = new System.Windows.Forms.ToolStripButton();
this.bindingNavigatorMovePreviousItem = new System.Windows.Forms.ToolStripButton();
this.bindingNavigatorSeparator = new System.Windows.Forms.ToolStripSeparator();
this.bindingNavigatorPositionItem = new System.Windows.Forms.ToolStripTextBox();
this.bindingNavigatorSeparator1 = new System.Windows.Forms.ToolStripSeparator();
this.bindingNavigatorMoveNextItem = new System.Windows.Forms.ToolStripButton();
this.bindingNavigatorMoveLastItem = new System.Windows.Forms.ToolStripButton();
this.bindingNavigatorSeparator2 = new System.Windows.Forms.ToolStripSeparator();
this.textBox1 = new System.Windows.Forms.TextBox();
this.textBox2 = new System.Windows.Forms.TextBox();
this.bindingSource1 = new System.Windows.Forms.BindingSource(this.components);
((System.ComponentModel.ISupportInitialize)(this.bindingNavigator1)).BeginInit();
this.bindingNavigator1.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.bindingSource1)).BeginInit();
this.SuspendLayout();
//
// bindingNavigator1
//
this.bindingNavigator1.AddNewItem = this.bindingNavigatorAddNewItem;
this.bindingNavigator1.CountItem = this.bindingNavigatorCountItem;
this.bindingNavigator1.CountItemFormat = "of {0}";
this.bindingNavigator1.DeleteItem = this.bindingNavigatorDeleteItem;
this.bindingNavigator1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
this.bindingNavigatorMoveFirstItem,
this.bindingNavigatorMovePreviousItem,
this.bindingNavigatorSeparator,
this.bindingNavigatorPositionItem,
this.bindingNavigatorCountItem,
this.bindingNavigatorSeparator1,
this.bindingNavigatorMoveNextItem,
this.bindingNavigatorMoveLastItem,
this.bindingNavigatorSeparator2,
this.bindingNavigatorAddNewItem,
this.bindingNavigatorDeleteItem});
this.bindingNavigator1.Location = new System.Drawing.Point(0, 0);
this.bindingNavigator1.MoveFirstItem = this.bindingNavigatorMoveFirstItem;
this.bindingNavigator1.MoveLastItem = this.bindingNavigatorMoveLastItem;
this.bindingNavigator1.MoveNextItem = this.bindingNavigatorMoveNextItem;
this.bindingNavigator1.MovePreviousItem = this.bindingNavigatorMovePreviousItem;
this.bindingNavigator1.Name = "bindingNavigator1";
this.bindingNavigator1.PositionItem = this.bindingNavigatorPositionItem;
this.bindingNavigator1.TabIndex = 2;
this.bindingNavigator1.Text = "bindingNavigator1";
//
// bindingNavigatorAddNewItem
//
this.bindingNavigatorAddNewItem.Image =
((System.Drawing.Image)(resources.GetObject("bindingNavigatorAddNewItem.Image")));
this.bindingNavigatorAddNewItem.Name = "bindingNavigatorAddNewItem";
this.bindingNavigatorAddNewItem.Text = "Add new";
//
// bindingNavigatorCountItem
//
this.bindingNavigatorCountItem.Name = "bindingNavigatorCountItem";
this.bindingNavigatorCountItem.Text = "of {0}";
this.bindingNavigatorCountItem.ToolTipText = "Total number of items";
//
// bindingNavigatorDeleteItem
//
this.bindingNavigatorDeleteItem.Image =
((System.Drawing.Image)(resources.GetObject("bindingNavigatorDeleteItem.Image")));
this.bindingNavigatorDeleteItem.Name = "bindingNavigatorDeleteItem";
this.bindingNavigatorDeleteItem.Text = "Delete";
//
// bindingNavigatorMoveFirstItem
//
this.bindingNavigatorMoveFirstItem.Image =
((System.Drawing.Image)(resources.GetObject("bindingNavigatorMoveFirstItem.Image")));
this.bindingNavigatorMoveFirstItem.Name = "bindingNavigatorMoveFirstItem";
this.bindingNavigatorMoveFirstItem.Text = "Move first";
//
// bindingNavigatorMovePreviousItem
//
this.bindingNavigatorMovePreviousItem.Image =
((System.Drawing.Image)(resources.GetObject("bindingNavigatorMovePreviousItem.Image")));
this.bindingNavigatorMovePreviousItem.Name = "bindingNavigatorMovePreviousItem";
this.bindingNavigatorMovePreviousItem.Text = "Move previous";
//
// bindingNavigatorSeparator
//
this.bindingNavigatorSeparator.Name = "bindingNavigatorSeparator";
//
// bindingNavigatorPositionItem
//
this.bindingNavigatorPositionItem.DisplayStyle =
System.Windows.Forms.ToolStripItemDisplayStyle.ImageAndText;
this.bindingNavigatorPositionItem.Name = "bindingNavigatorPositionItem";
this.bindingNavigatorPositionItem.Size = new System.Drawing.Size(50, 25);
this.bindingNavigatorPositionItem.Text = "0";
this.bindingNavigatorPositionItem.ToolTipText = "Current position";
//
// bindingNavigatorSeparator1
//
this.bindingNavigatorSeparator1.Name = "bindingNavigatorSeparator1";
// bindingNavigatorMoveNextItem
//
this.bindingNavigatorMoveNextItem.Image =
((System.Drawing.Image)(resources.GetObject("bindingNavigatorMoveNextItem.Image")));
this.bindingNavigatorMoveNextItem.Name = "bindingNavigatorMoveNextItem";
this.bindingNavigatorMoveNextItem.Text = "Move next";
//
// bindingNavigatorMoveLastItem
//
this.bindingNavigatorMoveLastItem.Image =
((System.Drawing.Image)(resources.GetObject("bindingNavigatorMoveLastItem.Image")));
this.bindingNavigatorMoveLastItem.Name = "bindingNavigatorMoveLastItem";
this.bindingNavigatorMoveLastItem.Text = "Move last";
//
// bindingNavigatorSeparator2
//
this.bindingNavigatorSeparator2.Name = "bindingNavigatorSeparator2";
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(46, 64);
this.textBox1.Name = "textBox1";
this.textBox1.TabIndex = 3;
//
// textBox2
//
this.textBox2.Location = new System.Drawing.Point(46, 104);
this.textBox2.Name = "textBox2";
this.textBox2.TabIndex = 4;
//
// Form1
//
this.ClientSize = new System.Drawing.Size(292, 266);
this.Controls.Add(this.textBox2);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.bindingNavigator1);
this.Name = "Form1";
((System.ComponentModel.ISupportInitialize)(this.bindingNavigator1)).EndInit();
this.bindingNavigator1.ResumeLayout(false);
this.bindingNavigator1.PerformLayout();
((System.ComponentModel.ISupportInitialize)(this.bindingSource1)).EndInit();
this.ResumeLayout(false);
this.PerformLayout();
}
}
}
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Xml
Imports System.IO
Imports System.Text
Class Form1
Inherits Form
Private components As IContainer
Private bindingNavigator1 As BindingNavigator
Private bindingNavigatorAddNewItem As ToolStripButton
Private bindingNavigatorCountItem As ToolStripLabel
Private bindingNavigatorDeleteItem As ToolStripButton
Private bindingNavigatorMoveFirstItem As ToolStripButton
Private bindingNavigatorMovePreviousItem As ToolStripButton
Private bindingNavigatorSeparator As ToolStripSeparator
Private bindingNavigatorPositionItem As ToolStripTextBox
Private bindingNavigatorSeparator1 As ToolStripSeparator
Private bindingNavigatorMoveNextItem As ToolStripButton
Private bindingNavigatorMoveLastItem As ToolStripButton
Private textBox1 As TextBox
Private textBox2 As TextBox
Private bindingSource1 As BindingSource
Private bindingNavigatorSeparator2 As ToolStripSeparator
Public Sub New()
InitializeComponent()
LoadData()
bindingNavigator1.BindingSource = bindingSource1
End Sub
Private Sub LoadData()
' The xml to bind to.
Dim xml As String = "<US><states>" + "<state><name>Washington</name><capital>Olympia</capital></state>" + "<state><name>Oregon</name><capital>Salem</capital></state>" + "<state><name>California</name><capital>Sacramento</capital></state>" + "<state><name>Nevada</name><capital>Carson City</capital></state>" + "</states></US>"
' Convert the xml string to bytes and load into a memory stream.
Dim xmlBytes As Byte() = Encoding.UTF8.GetBytes(xml)
Dim stream As New MemoryStream(xmlBytes, False)
' Create a DataSet and load the xml into it.
Dim [set] As New DataSet()
[set].ReadXml(stream)
' Set the DataSource to the DataSet, and the DataMember
' to state.
bindingSource1.DataSource = [set]
bindingSource1.DataMember = "state"
textBox1.DataBindings.Add("Text", bindingSource1, "name")
textBox2.DataBindings.Add("Text", bindingSource1, "capital")
End Sub
<STAThread()> _
Public Shared Sub Main()
Application.EnableVisualStyles()
Application.Run(New Form1())
End Sub
Private Sub InitializeComponent()
Me.components = New System.ComponentModel.Container()
Dim resources As New System.ComponentModel.ComponentResourceManager(GetType(Form1))
Me.bindingNavigator1 = New System.Windows.Forms.BindingNavigator(Me.components)
Me.bindingNavigatorAddNewItem = New System.Windows.Forms.ToolStripButton()
Me.bindingNavigatorCountItem = New System.Windows.Forms.ToolStripLabel()
Me.bindingNavigatorDeleteItem = New System.Windows.Forms.ToolStripButton()
Me.bindingNavigatorMoveFirstItem = New System.Windows.Forms.ToolStripButton()
Me.bindingNavigatorMovePreviousItem = New System.Windows.Forms.ToolStripButton()
Me.bindingNavigatorSeparator = New System.Windows.Forms.ToolStripSeparator()
Me.bindingNavigatorPositionItem = New System.Windows.Forms.ToolStripTextBox()
Me.bindingNavigatorSeparator1 = New System.Windows.Forms.ToolStripSeparator()
Me.bindingNavigatorMoveNextItem = New System.Windows.Forms.ToolStripButton()
Me.bindingNavigatorMoveLastItem = New System.Windows.Forms.ToolStripButton()
Me.bindingNavigatorSeparator2 = New System.Windows.Forms.ToolStripSeparator()
Me.textBox1 = New System.Windows.Forms.TextBox()
Me.textBox2 = New System.Windows.Forms.TextBox()
Me.bindingSource1 = New System.Windows.Forms.BindingSource(Me.components)
CType(Me.bindingNavigator1, System.ComponentModel.ISupportInitialize).BeginInit()
Me.bindingNavigator1.SuspendLayout()
CType(Me.bindingSource1, System.ComponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
'
' bindingNavigator1
'
Me.bindingNavigator1.AddNewItem = Me.bindingNavigatorAddNewItem
Me.bindingNavigator1.CountItem = Me.bindingNavigatorCountItem
Me.bindingNavigator1.CountItemFormat = "of {0}"
Me.bindingNavigator1.DeleteItem = Me.bindingNavigatorDeleteItem
Me.bindingNavigator1.Items.AddRange(New System.Windows.Forms.ToolStripItem() {Me.bindingNavigatorMoveFirstItem, Me.bindingNavigatorMovePreviousItem, Me.bindingNavigatorSeparator, Me.bindingNavigatorPositionItem, Me.bindingNavigatorCountItem, Me.bindingNavigatorSeparator1, Me.bindingNavigatorMoveNextItem, Me.bindingNavigatorMoveLastItem, Me.bindingNavigatorSeparator2, Me.bindingNavigatorAddNewItem, Me.bindingNavigatorDeleteItem})
Me.bindingNavigator1.Location = New System.Drawing.Point(0, 0)
Me.bindingNavigator1.MoveFirstItem = Me.bindingNavigatorMoveFirstItem
Me.bindingNavigator1.MoveLastItem = Me.bindingNavigatorMoveLastItem
Me.bindingNavigator1.MoveNextItem = Me.bindingNavigatorMoveNextItem
Me.bindingNavigator1.MovePreviousItem = Me.bindingNavigatorMovePreviousItem
Me.bindingNavigator1.Name = "bindingNavigator1"
Me.bindingNavigator1.PositionItem = Me.bindingNavigatorPositionItem
Me.bindingNavigator1.TabIndex = 2
Me.bindingNavigator1.Text = "bindingNavigator1"
'
' bindingNavigatorAddNewItem
'
Me.bindingNavigatorAddNewItem.Image = CType(resources.GetObject("bindingNavigatorAddNewItem.Image"), System.Drawing.Image)
Me.bindingNavigatorAddNewItem.Name = "bindingNavigatorAddNewItem"
Me.bindingNavigatorAddNewItem.Text = "Add new"
'
' bindingNavigatorCountItem
'
Me.bindingNavigatorCountItem.Name = "bindingNavigatorCountItem"
Me.bindingNavigatorCountItem.Text = "of {0}"
Me.bindingNavigatorCountItem.ToolTipText = "Total number of items"
'
' bindingNavigatorDeleteItem
'
Me.bindingNavigatorDeleteItem.Image = CType(resources.GetObject("bindingNavigatorDeleteItem.Image"), System.Drawing.Image)
Me.bindingNavigatorDeleteItem.Name = "bindingNavigatorDeleteItem"
Me.bindingNavigatorDeleteItem.Text = "Delete"
'
' bindingNavigatorMoveFirstItem
'
Me.bindingNavigatorMoveFirstItem.Image = CType(resources.GetObject("bindingNavigatorMoveFirstItem.Image"), System.Drawing.Image)
Me.bindingNavigatorMoveFirstItem.Name = "bindingNavigatorMoveFirstItem"
Me.bindingNavigatorMoveFirstItem.Text = "Move first"
'
' bindingNavigatorMovePreviousItem
'
Me.bindingNavigatorMovePreviousItem.Image = CType(resources.GetObject("bindingNavigatorMovePreviousItem.Image"), System.Drawing.Image)
Me.bindingNavigatorMovePreviousItem.Name = "bindingNavigatorMovePreviousItem"
Me.bindingNavigatorMovePreviousItem.Text = "Move previous"
'
' bindingNavigatorSeparator
'
Me.bindingNavigatorSeparator.Name = "bindingNavigatorSeparator"
'
' bindingNavigatorPositionItem
'
Me.bindingNavigatorPositionItem.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.ImageAndText
Me.bindingNavigatorPositionItem.Name = "bindingNavigatorPositionItem"
Me.bindingNavigatorPositionItem.Size = New System.Drawing.Size(50, 25)
Me.bindingNavigatorPositionItem.Text = "0"
Me.bindingNavigatorPositionItem.ToolTipText = "Current position"
'
' bindingNavigatorSeparator1
'
Me.bindingNavigatorSeparator1.Name = "bindingNavigatorSeparator1"
'
' bindingNavigatorMoveNextItem
'
Me.bindingNavigatorMoveNextItem.Image = CType(resources.GetObject("bindingNavigatorMoveNextItem.Image"), System.Drawing.Image)
Me.bindingNavigatorMoveNextItem.Name = "bindingNavigatorMoveNextItem"
Me.bindingNavigatorMoveNextItem.Text = "Move next"
'
' bindingNavigatorMoveLastItem
'
Me.bindingNavigatorMoveLastItem.Image = CType(resources.GetObject("bindingNavigatorMoveLastItem.Image"), System.Drawing.Image)
Me.bindingNavigatorMoveLastItem.Name = "bindingNavigatorMoveLastItem"
Me.bindingNavigatorMoveLastItem.Text = "Move last"
'
' bindingNavigatorSeparator2
'
Me.bindingNavigatorSeparator2.Name = "bindingNavigatorSeparator2"
'
' textBox1
'
Me.textBox1.Location = New System.Drawing.Point(46, 64)
Me.textBox1.Name = "textBox1"
Me.textBox1.TabIndex = 3
'
' textBox2
'
Me.textBox2.Location = New System.Drawing.Point(46, 104)
Me.textBox2.Name = "textBox2"
Me.textBox2.TabIndex = 4
'
' Form1
'
Me.ClientSize = New System.Drawing.Size(292, 266)
Me.Controls.Add(textBox2)
Me.Controls.Add(textBox1)
Me.Controls.Add(bindingNavigator1)
Me.Name = "Form1"
CType(Me.bindingNavigator1, System.ComponentModel.ISupportInitialize).EndInit()
Me.bindingNavigator1.ResumeLayout(False)
Me.bindingNavigator1.PerformLayout()
CType(Me.bindingSource1, System.ComponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
End Class
コードのコンパイル
この例では、次のものが必要です。
- System、System.Data、System.Drawing、System.Windows.Forms、および System.Xml アセンブリへの参照。
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