TrackBar.Maximum プロパティ
この TrackBar が使用する範囲の上限値を取得または設定します。
Public Property Maximum As Integer
[C#]
public int Maximum {get; set;}
[C++]
public: __property int get_Maximum();public: __property void set_Maximum(int);
[JScript]
public function get Maximum() : int;public function set Maximum(int);
プロパティ値
TrackBar の最大値。既定値は、10 です。
解説
SetRange メソッドを使用すると、 Maximum プロパティと Minimum プロパティの両方を同時に設定できます。
使用例
[Visual Basic, C#, C++] TrackBar コントロールと TextBox コントロールが配置されたフォームを表示する例を次に示します。この例では、 Maximum 、 TickFrequency 、 LargeChange 、 SmallChange の各プロパティを設定して、 Scroll イベントを処理しています。 TextBox の内容は、 Scroll イベントが発生したときに、 Value プロパティの値に更新されます。
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Public Class Form1
Inherits System.Windows.Forms.Form
Private WithEvents trackBar1 As System.Windows.Forms.TrackBar
Private textBox1 As System.Windows.Forms.TextBox
<System.STAThread()> _
Public Shared Sub Main()
System.Windows.Forms.Application.Run(New Form1)
End Sub 'Main
Public Sub New()
Me.textBox1 = New System.Windows.Forms.TextBox
Me.trackBar1 = New System.Windows.Forms.TrackBar
' TextBox for TrackBar.Value update.
Me.textBox1.Location = New System.Drawing.Point(240, 16)
Me.textBox1.Size = New System.Drawing.Size(48, 20)
' Set up how the form should be displayed and add the controls to the form.
Me.ClientSize = New System.Drawing.Size(296, 62)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.textBox1, Me.trackBar1})
Me.Text = "TrackBar Example"
' Set up the TrackBar.
Me.trackBar1.Location = New System.Drawing.Point(8, 8)
Me.trackBar1.Size = New System.Drawing.Size(224, 45)
' The Maximum property sets the value of the track bar when
' the slider is all the way to the right.
trackBar1.Maximum = 30
' The TickFrequency property establishes how many positions
' are between each tick-mark.
trackBar1.TickFrequency = 5
' The LargeChange property sets how many positions to move
' if the bar is clicked on either side of the slider.
trackBar1.LargeChange = 3
' The SmallChange property sets how many positions to move
' if the keyboard arrows are used to move the slider.
trackBar1.SmallChange = 2
End Sub 'New
Private Sub trackBar1_Scroll(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles trackBar1.Scroll
' Display the trackbar value in the text box.
textBox1.Text = trackBar1.Value
End Sub
End Class 'Form1
[C#]
using System;
using System.Drawing;
using System.Windows.Forms;
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.TrackBar trackBar1;
private System.Windows.Forms.TextBox textBox1;
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
public Form1()
{
this.textBox1 = new System.Windows.Forms.TextBox();
this.trackBar1 = new System.Windows.Forms.TrackBar();
// TextBox for TrackBar.Value update.
this.textBox1.Location = new System.Drawing.Point(240, 16);
this.textBox1.Size = new System.Drawing.Size(48, 20);
// Set up how the form should be displayed and add the controls to the form.
this.ClientSize = new System.Drawing.Size(296, 62);
this.Controls.AddRange(new System.Windows.Forms.Control[] {this.textBox1,this.trackBar1});
this.Text = "TrackBar Example";
// Set up the TrackBar.
this.trackBar1.Location = new System.Drawing.Point(8, 8);
this.trackBar1.Size = new System.Drawing.Size(224, 45);
this.trackBar1.Scroll += new System.EventHandler(this.trackBar1_Scroll);
// The Maximum property sets the value of the track bar when
// the slider is all the way to the right.
trackBar1.Maximum = 30;
// The TickFrequency property establishes how many positions
// are between each tick-mark.
trackBar1.TickFrequency = 5;
// The LargeChange property sets how many positions to move
// if the bar is clicked on either side of the slider.
trackBar1.LargeChange = 3;
// The SmallChange property sets how many positions to move
// if the keyboard arrows are used to move the slider.
trackBar1.SmallChange = 2;
}
private void trackBar1_Scroll(object sender, System.EventArgs e)
{
// Display the trackbar value in the text box.
textBox1.Text = "" + trackBar1.Value;
}
}
[C++]
using namespace System;
using namespace System::Drawing;
using namespace System::Windows::Forms;
public __gc class Form1 : public System::Windows::Forms::Form {
private:
System::Windows::Forms::TrackBar* trackBar1;
System::Windows::Forms::TextBox* textBox1;
public:
Form1() {
this->textBox1 = new System::Windows::Forms::TextBox();
this->trackBar1 = new System::Windows::Forms::TrackBar();
// TextBox for TrackBar::Value update.
this->textBox1->Location = System::Drawing::Point(240, 16);
this->textBox1->Size = System::Drawing::Size(48, 20);
// Set up how the form should be displayed and add the controls to the form.
this->ClientSize = System::Drawing::Size(296, 62);
System::Windows::Forms::Control* formControls[] = {
this->textBox1, this->trackBar1};
this->Controls->AddRange(formControls);
this->Text = S"TrackBar Example";
// Set up the TrackBar.
this->trackBar1->Location = System::Drawing::Point(8, 8);
this->trackBar1->Size = System::Drawing::Size(224, 45);
this->trackBar1->Scroll += new
System::EventHandler(this, &Form1::trackBar1_Scroll);
// The Maximum property sets the value of the track bar when
// the slider is all the way to the right.
trackBar1->Maximum = 30;
// The TickFrequency property establishes how many positions
// are between each tick-mark.
trackBar1->TickFrequency = 5;
// The LargeChange property sets how many positions to move
// if the bar is clicked on either side of the slider.
trackBar1->LargeChange = 3;
// The SmallChange property sets how many positions to move
// if the keyboard arrows are used to move the slider.
trackBar1->SmallChange = 2;
}
private:
void trackBar1_Scroll(Object* /*sender*/, System::EventArgs* /*e*/) {
// Display the trackbar value in the text box.
textBox1->Text = String::Concat(S"", __box(trackBar1->Value));
}
};
[STAThread]
int main() {
Application::Run(new Form1());
}
[JScript] JScript のサンプルはありません。Visual Basic、C#、および C++ のサンプルを表示するには、このページの左上隅にある言語のフィルタ ボタン .gif)
をクリックします。
必要条件
プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ, .NET Compact Framework - Windows CE .NET