方法 : フォームの内容のスクロール
[このドキュメントはプレビュー版であり、後のリリースで変更されることがあります。 空白のトピックは、プレースホルダーとして挿入されています。]
Panel コントロールで、 AutoScroll プロパティを true に設定し、その内容を垂直方向にスクロールできます。 ただし、両方をスクロールする垂直方向と水平方向に追加するスクロール バーのプロパティを定義します。
使用例
フォーム上のイメージ縦と横をスクロールする水平および垂直のスクロール バー コントロールを使用する次の使用例に示します。 スクロール バー] をクリックすると、Left と Left プロパティ] パネルの [によって、スクロールのエクスペリエンスを作成するスクロール バーの値にに従って変更します。
次の使用例大きなイメージで作成フォーム、または、X の付いた四角形斜めの四隅を接続します。
ValueChanged イベントのイベント処理コードは、スクロール バーの値を変更した Left または LeftPanel プロパティを変更します。 これらのプロパティは、右垂直スクロール バーでの水平スクロール バーの上下にスクロールすると小さきます。 逆に、反対の方向に移動すると増加させる。
Imports System
Imports System.Drawing
Imports System.Windows.Forms
PublicClass Scrolling
Inherits System.Windows.Forms.Form
PrivateWithEvents HScrollBar1 As System.Windows.Forms.HScrollBar
PrivateWithEvents VScrollBar1 As System.Windows.Forms.VScrollBar
Private Panel1 As System.Windows.Forms.Panel
Private Label1 As System.Windows.Forms.Label
Private Label2 As System.Windows.Forms.Label
Private Label3 As System.Windows.Forms.Label
Private Label4 As System.Windows.Forms.Label
Private PictureBox1 As System.Windows.Forms.PictureBox
Private MainMenu1 As System.Windows.Forms.MainMenu
PublicSubNew()
InitializeComponent()
Dim bmp AsNew Bitmap(PictureBox1.Width, PictureBox1.Height)
Dim blackpen AsNew Pen(Color.Black)
Dim g As Graphics = Graphics.FromImage(bmp)
g.FillRectangle(New SolidBrush(Color.Gainsboro), 0, 0, bmp.Width, bmp.Height)
g.DrawLine(blackpen, 0, 0, bmp.Width, bmp.Height)
g.DrawLine(blackpen, 0, bmp.Height, bmp.Width, 0)
g.Dispose()
Me.PictureBox1.Image = bmp
Me.PictureBox1.Size = bmp.Size
Me.VScrollBar1.Maximum = bmp.Height + Me.ClientSize.Height
Me.HScrollBar1.Maximum = bmp.Width + Me.ClientSize.Width
Me.HScrollBar1.Value = 0
Me.Text = "x = 0, y = 0"EndSubProtectedOverloadsOverridesSub Dispose(ByVal disposing AsBoolean)
MyBase.Dispose(disposing)
EndSubPrivateSub InitializeComponent()
Me.MainMenu1 = New System.Windows.Forms.MainMenu
Me.HScrollBar1 = New System.Windows.Forms.HScrollBar
Me.VScrollBar1 = New System.Windows.Forms.VScrollBar
Me.Panel1 = New System.Windows.Forms.Panel
Me.PictureBox1 = New System.Windows.Forms.PictureBox
Me.Label1 = New System.Windows.Forms.Label
Me.Label2 = New System.Windows.Forms.Label
Me.Label3 = New System.Windows.Forms.Label
Me.Label4 = New System.Windows.Forms.Label
' ' HScrollBar1 ' Me.HScrollBar1.LargeChange = 240
Me.HScrollBar1.Location = New System.Drawing.Point(0, 255)
Me.HScrollBar1.Maximum = 493
Me.HScrollBar1.Size = New System.Drawing.Size(227, 13)
' ' VScrollBar1 ' Me.VScrollBar1.LargeChange = 268
Me.VScrollBar1.Location = New System.Drawing.Point(227, 0)
Me.VScrollBar1.Maximum = 549
Me.VScrollBar1.Size = New System.Drawing.Size(13, 255)
' ' Panel1 ' Me.Panel1.Controls.Add(Me.PictureBox1)
Me.Panel1.Controls.Add(Me.Label1)
Me.Panel1.Controls.Add(Me.Label2)
Me.Panel1.Controls.Add(Me.Label3)
Me.Panel1.Controls.Add(Me.Label4)
Me.Panel1.Size = New System.Drawing.Size(480, 536)
' ' PictureBox1 ' Me.PictureBox1.Location = New System.Drawing.Point(88, 36)
Me.PictureBox1.Size = New System.Drawing.Size(304, 464)
' ' Label1 ' Me.Label1.Location = New System.Drawing.Point(8, 8)
Me.Label1.Size = New System.Drawing.Size(82, 20)
Me.Label1.Text = "Top Left" ' ' Label2 ' Me.Label2.Location = New System.Drawing.Point(400, 8)
Me.Label2.Size = New System.Drawing.Size(82, 20)
Me.Label2.Text = "Top Right" ' ' Label3 ' Me.Label3.Location = New System.Drawing.Point(8, 508)
Me.Label3.Size = New System.Drawing.Size(82, 20)
Me.Label3.Text = "Bottom Left" ' ' Label4 ' Me.Label4.Location = New System.Drawing.Point(400, 508)
Me.Label4.Size = New System.Drawing.Size(82, 20)
Me.Label4.Text = "Bottom Right" ' ' Scrolling ' Me.Controls.Add(VScrollBar1)
Me.Controls.Add(HScrollBar1)
Me.Controls.Add(Panel1)
Me.Menu = Me.MainMenu1
Me.Text = "Scrolling"EndSubSharedSub Main()
Application.Run(New Scrolling)
EndSubPrivateSub HScrollBar1_ValueChanged(ByVal sender AsObject, ByVal e As System.EventArgs) Handles HScrollBar1.ValueChanged
Me.Panel1.Left = -Me.HScrollBar1.Value
' Display the current values in the title bar.Me.Text = "x = " + Me.Panel1.Location.X.ToString + ", y = " + Me.Panel1.Location.Y.ToString
EndSubPrivateSub VScrollBar1_ValueChanged(ByVal sender AsObject, ByVal e As System.EventArgs) Handles VScrollBar1.ValueChanged
Me.Panel1.Top = -Me.VScrollBar1.Value
' Display the current values in the title bar. Me.Text = "x = " + Me.Panel1.Location.X.ToString + ", y = " + Me.Panel1.Location.Y.ToString
EndSubEndClass
using System;
using System.Drawing;
using System.Collections;
using System.Windows.Forms;
using System.Data;
using System.Reflection;
namespace Scrolling
{
publicclass Scrolling : System.Windows.Forms.Form
{
private System.Windows.Forms.HScrollBar hScrollBar1;
private System.Windows.Forms.VScrollBar vScrollBar1;
private System.Windows.Forms.Panel panel1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.PictureBox pictureBox1;
private System.Windows.Forms.MainMenu mainMenu1;
public Scrolling()
{
InitializeComponent();
Bitmap bmp = new Bitmap(pictureBox1.Width,pictureBox1.Height);
Pen blackpen = new Pen(Color.Black);
Graphics g = Graphics.FromImage(bmp);
g.FillRectangle(new SolidBrush(Color.Gainsboro),0,0,bmp.Width,bmp.Height);
g.DrawLine(blackpen,0,0, bmp.Width, bmp.Height);
g.DrawLine(blackpen,0,bmp.Height,bmp.Width,0);
g.Dispose();
this.pictureBox1.Image = bmp;
this.pictureBox1.Size = bmp.Size;
this.vScrollBar1.Maximum = bmp.Height + this.ClientSize.Height;
this.hScrollBar1.Maximum = bmp.Width + this.ClientSize.Width;
this.hScrollBar1.Value = 0;
this.Text = "x = 0, y = 0";
}
protectedoverridevoid Dispose( bool disposing )
{
base.Dispose( disposing );
}
privatevoid InitializeComponent()
{
this.mainMenu1 = new System.Windows.Forms.MainMenu();
this.hScrollBar1 = new System.Windows.Forms.HScrollBar();
this.vScrollBar1 = new System.Windows.Forms.VScrollBar();
this.panel1 = new System.Windows.Forms.Panel();
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.label4 = new System.Windows.Forms.Label();
//// hScrollBar1//this.hScrollBar1.LargeChange = 240;
this.hScrollBar1.Location = new System.Drawing.Point(0, 255);
this.hScrollBar1.Maximum = 493;
this.hScrollBar1.Size = new System.Drawing.Size(227, 13);
this.hScrollBar1.ValueChanged += new System.EventHandler(this.hScrollBar1_ValueChanged);
//// vScrollBar1//this.vScrollBar1.LargeChange = 268;
this.vScrollBar1.Location = new System.Drawing.Point(227, 0);
this.vScrollBar1.Maximum = 549;
this.vScrollBar1.Size = new System.Drawing.Size(13, 255);
this.vScrollBar1.ValueChanged += new System.EventHandler(this.vScrollBar1_ValueChanged);
//// panel1//this.panel1.Controls.Add(this.pictureBox1);
this.panel1.Controls.Add(this.label1);
this.panel1.Controls.Add(this.label2);
this.panel1.Controls.Add(this.label3);
this.panel1.Controls.Add(this.label4);
this.panel1.Size = new System.Drawing.Size(480, 536);
//// pictureBox1//this.pictureBox1.Location = new System.Drawing.Point(88, 36);
this.pictureBox1.Size = new System.Drawing.Size(304, 464);
//// label1//this.label1.Location = new System.Drawing.Point(8, 8);
this.label1.Size = new System.Drawing.Size(82, 20);
this.label1.Text = "Top Left";
//// label2//this.label2.Location = new System.Drawing.Point(400, 8);
this.label2.Size = new System.Drawing.Size(82, 20);
this.label2.Text = "Top Right";
//// label3//this.label3.Location = new System.Drawing.Point(8, 508);
this.label3.Size = new System.Drawing.Size(82, 20);
this.label3.Text = "Bottom Left";
//// label4//this.label4.Location = new System.Drawing.Point(400, 508);
this.label4.Size = new System.Drawing.Size(82, 20);
this.label4.Text = "Bottom Right";
//// Scrolling//this.Controls.Add(this.vScrollBar1);
this.Controls.Add(this.hScrollBar1);
this.Controls.Add(this.panel1);
this.Menu = this.mainMenu1;
this.Text = "Scrolling";
}
staticvoid Main()
{
Application.Run(new Scrolling());
}
privatevoid hScrollBar1_ValueChanged(object sender, System.EventArgs e)
{
this.panel1.Left = -this.hScrollBar1.Value;
// Display the current values in the title bar.this.Text = "x = " + this.panel1.Location.X + ", y = " + this.panel1.Location.Y;
}
privatevoid vScrollBar1_ValueChanged(object sender, System.EventArgs e)
{
this.panel1.Top = -this.vScrollBar1.Value;
// Display the current values in the title bar.this.Text = "x = " + this.panel1.Location.X + ", y = " + this.panel1.Location.Y;
}
}
}
コードのコンパイル方法
この例では、次の名前空間への参照が必要です。