この TrackBar が使用する範囲の下限値を取得または設定します。
名前空間: System.Windows.Forms
アセンブリ: System.Windows.Forms (system.windows.forms.dll 内)
構文
'宣言
Public Property Minimum As Integer
'使用
Dim instance As TrackBar
Dim value As Integer
value = instance.Minimum
instance.Minimum = value
public int Minimum { get; set; }
public:
property int Minimum {
int get ();
void set (int value);
}
/** @property */
public int get_Minimum ()
/** @property */
public void set_Minimum (int value)
public function get Minimum () : int
public function set Minimum (value : int)
プロパティ値
TrackBar の最小値。既定値は 0 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
TickFrequency、Minimum、Maximum の各メンバの使用方法、および ValueChanged イベントの処理方法を示すコード例を次に示します。この例を実行するには、TrackBar1 という名前の TrackBar コントロールと TextBox1 という名前の TextBox コントロールが配置されているフォームに次のコードを貼り付けます。次に、フォームのコンストラクタまたは Load のイベント処理メソッドで InitializeTrackBar メソッドを呼び出します。
'Declare a new TrackBar object.
Friend WithEvents TrackBar1 As System.Windows.Forms.TrackBar
' Initalize the TrackBar and add it to the form.
Private Sub InitializeTrackBar()
Me.TrackBar1 = New System.Windows.Forms.TrackBar
' Set the TickStyle property so there are ticks on both sides
' of the TrackBar.
TrackBar1.TickStyle = TickStyle.Both
' Set the minimum and maximum number of ticks.
TrackBar1.Minimum = 10
TrackBar1.Maximum = 100
' Set the tick frequency to one tick every ten units.
TrackBar1.TickFrequency = 10
TrackBar1.Location = New System.Drawing.Point(75, 30)
Me.Controls.Add(Me.TrackBar1)
End Sub
' Handle the TrackBar.ValueChanged event by calculating a value for
' TextBox1 based on the TrackBar value.
Private Sub TrackBar1_ValueChanged(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles TrackBar1.ValueChanged
TextBox1.Text = System.Math.Round(TrackBar1.Value / 10)
End Sub
//Declare a new TrackBar object.
internal System.Windows.Forms.TrackBar TrackBar1;
// Initalize the TrackBar and add it to the form.
private void InitializeTrackBar()
{
this.TrackBar1 = new System.Windows.Forms.TrackBar();
TrackBar1.Location = new System.Drawing.Point(75, 30);
// Set the TickStyle property so there are ticks on both sides
// of the TrackBar.
TrackBar1.TickStyle = TickStyle.Both;
// Set the minimum and maximum number of ticks.
TrackBar1.Minimum = 10;
TrackBar1.Maximum = 100;
// Set the tick frequency to one tick every ten units.
TrackBar1.TickFrequency = 10;
// Associate the event-handling method with the
// ValueChanged event.
TrackBar1.ValueChanged +=
new System.EventHandler(TrackBar1_ValueChanged);
this.Controls.Add(this.TrackBar1);
}
// Handle the TrackBar.ValueChanged event by calculating a value for
// TextBox1 based on the TrackBar value.
private void TrackBar1_ValueChanged(object sender, System.EventArgs e)
{
TextBox1.Text = (System.Math.Round(TrackBar1.Value/10.0)).ToString();
}
//Declare a new TrackBar object.
internal:
System::Windows::Forms::TrackBar^ TrackBar1;
// Initalize the TrackBar and add it to the form.
private:
void InitializeTrackBar()
{
this->TrackBar1 = gcnew System::Windows::Forms::TrackBar;
TrackBar1->Location = System::Drawing::Point( 75, 30 );
// Set the TickStyle property so there are ticks on both sides
// of the TrackBar.
TrackBar1->TickStyle = TickStyle::Both;
// Set the minimum and maximum number of ticks.
TrackBar1->Minimum = 10;
TrackBar1->Maximum = 100;
// Set the tick frequency to one tick every ten units.
TrackBar1->TickFrequency = 10;
// Associate the event-handling method with the
// ValueChanged event.
TrackBar1->ValueChanged += gcnew System::EventHandler( this, &Form1::TrackBar1_ValueChanged );
this->Controls->Add( this->TrackBar1 );
}
// Handle the TrackBar.ValueChanged event by calculating a value for
// TextBox1 based on the TrackBar value.
void TrackBar1_ValueChanged( Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
TextBox1->Text = (System::Math::Round( TrackBar1->Value / 10.0 )).ToString();
}
//Declare a new TrackBar object.
System.Windows.Forms.TrackBar trackBar1;
// Initalize the TrackBar and add it to the form.
private void InitializeTrackBar()
{
this.trackBar1 = new System.Windows.Forms.TrackBar();
trackBar1.set_Location(new System.Drawing.Point(75, 30));
// Set the TickStyle property so there are ticks on both sides
// of the TrackBar.
trackBar1.set_TickStyle(TickStyle.Both);
// Set the minimum and maximum number of ticks.
trackBar1.set_Minimum(10);
trackBar1.set_Maximum(100);
// Set the tick frequency to one tick every ten units.
trackBar1.set_TickFrequency(10);
// Associate the event-handling method with the
// ValueChanged event.
trackBar1.add_ValueChanged(new System.EventHandler(
trackBar1_ValueChanged));
this.get_Controls().Add(this.trackBar1);
} //InitializeTrackBar
// Handle the TrackBar.ValueChanged event by calculating a value for
// textBox1 based on the TrackBar value.
private void trackBar1_ValueChanged(Object sender, System.EventArgs e)
{
textBox1.set_Text(((System.Double)System.Math.Round(
trackBar1.get_Value() / 10.0)).ToString());
} //trackBar1_ValueChanged
プラットフォーム
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。
バージョン情報
.NET Framework
サポート対象 : 2.0、1.1、1.0
.NET Compact Framework
サポート対象 : 2.0、1.0