ScrollBar.Maximum ScrollBar.Maximum ScrollBar.Maximum ScrollBar.Maximum Property

定義

取得またはスクロール可能な範囲の値の数の上限を設定します。Gets or sets the upper limit of values of the scrollable range.

public:
 property int Maximum { int get(); void set(int value); };
public int Maximum { get; set; }
member this.Maximum : int with get, set
Public Property Maximum As Integer

プロパティ値

数値を指定します。A numeric value. 既定値は 100 です。The default value is 100.

次の例で作成した、Formを追加しました、PictureBoxForm、水平方向の追加とHScrollBarと垂直方向VScrollBarPictureBoxします。The following example assumes that you have created a Form, added a PictureBox to the Form, and added a horizontal HScrollBar and a vertical VScrollBar to the PictureBox. このコード例が示されている例の一部、ScrollBarクラスの概要。This code example is part of a larger example provided for the ScrollBar class overview.

この例で、Maximumプロパティのサイズに設定されて、Imageさらに、調整係数のサイズのさらに表示されている場合、スクロール バーのサイズ、LargeChangeプロパティ。In this example, the Maximum property is set to the size of the Image plus the size of the scrollbar if it is visible plus an adjustment factor of the size of the LargeChange property.

参照を追加する必要があります、System.DrawingSystem.Windows.Forms名前空間をこの例を実行します。You must add references to the System.Drawing and System.Windows.Forms namespaces to run this example.

注意

Visual Studio でこの例を実行する方法については、次を参照してください。方法。Visual Studio を使用して、完全な Windows フォームのコードの例をコンパイルしてします。For instructions about how to run this example in Visual Studio, see How to: Compile and Run a Complete Windows Forms Code Example Using Visual Studio.

public void SetScrollBarValues()
{
    //Set the following scrollbar properties:

    //Minimum: Set to 0

    //SmallChange and LargeChange: Per UI guidelines, these must be set
    //    relative to the size of the view that the user sees, not to
    //    the total size including the unseen part.  In this example,
    //    these must be set relative to the picture box, not to the image.

    //Maximum: Calculate in steps:
    //Step 1: The maximum to scroll is the size of the unseen part.
    //Step 2: Add the size of visible scrollbars if necessary.
    //Step 3: Add an adjustment factor of ScrollBar.LargeChange.


    //Configure the horizontal scrollbar
    //---------------------------------------------
    if (this.hScrollBar1.Visible)
    {
        this.hScrollBar1.Minimum = 0;
        this.hScrollBar1.SmallChange = this.pictureBox1.Width / 20;
        this.hScrollBar1.LargeChange = this.pictureBox1.Width / 10;

        this.hScrollBar1.Maximum = this.pictureBox1.Image.Size.Width - pictureBox1.ClientSize.Width;  //step 1

        if (this.vScrollBar1.Visible) //step 2
        {
            this.hScrollBar1.Maximum += this.vScrollBar1.Width;
        }

        this.hScrollBar1.Maximum += this.hScrollBar1.LargeChange; //step 3
    }

    //Configure the vertical scrollbar
    //---------------------------------------------
    if (this.vScrollBar1.Visible)
    {
        this.vScrollBar1.Minimum = 0;
        this.vScrollBar1.SmallChange = this.pictureBox1.Height / 20;
        this.vScrollBar1.LargeChange = this.pictureBox1.Height / 10;

        this.vScrollBar1.Maximum = this.pictureBox1.Image.Size.Height - pictureBox1.ClientSize.Height; //step 1

        if (this.hScrollBar1.Visible) //step 2
        {
            this.vScrollBar1.Maximum += this.hScrollBar1.Height;
        }

        this.vScrollBar1.Maximum += this.vScrollBar1.LargeChange; //step 3
    }
}
Public Sub SetScrollBarValues()

    'Set the following scrollbar properties:

    'Minimum: Set to 0

    'SmallChange and LargeChange: Per UI guidelines, these must be set
    '    relative to the size of the view that the user sees, not to
    '    the total size including the unseen part.  In this example,
    '    these must be set relative to the picture box, not to the image.

    'Maximum: Calculate in steps:
    'Step 1: The maximum to scroll is the size of the unseen part.
    'Step 2: Add the size of visible scrollbars if necessary.
    'Step 3: Add an adjustment factor of ScrollBar.LargeChange.


    'Configure the horizontal scrollbar
    '---------------------------------------------
    If (Me.hScrollBar1.Visible) Then

        Me.hScrollBar1.Minimum = 0
        Me.hScrollBar1.SmallChange = CInt(Me.pictureBox1.Width / 20)
        Me.hScrollBar1.LargeChange = CInt(Me.pictureBox1.Width / 10)

        Me.hScrollBar1.Maximum = Me.pictureBox1.Image.Size.Width - pictureBox1.ClientSize.Width  'step 1

        If (Me.vScrollBar1.Visible) Then 'step 2

            Me.hScrollBar1.Maximum += Me.vScrollBar1.Width
        End If

        Me.hScrollBar1.Maximum += Me.hScrollBar1.LargeChange 'step 3
    End If

    'Configure the vertical scrollbar
    '---------------------------------------------
    If (Me.vScrollBar1.Visible) Then

        Me.vScrollBar1.Minimum = 0
        Me.vScrollBar1.SmallChange = CInt(Me.pictureBox1.Height / 20)
        Me.vScrollBar1.LargeChange = CInt(Me.pictureBox1.Height / 10)

        Me.vScrollBar1.Maximum = Me.pictureBox1.Image.Size.Height - pictureBox1.ClientSize.Height 'step 1

        If (Me.hScrollBar1.Visible) Then 'step 2

            Me.vScrollBar1.Maximum += Me.hScrollBar1.Height
        End If

        Me.vScrollBar1.Maximum += Me.vScrollBar1.LargeChange 'step 3
    End If
 End Sub

注釈

調整する場合、Maximumピクセルのサイズに比例してまたは行または表示される行の数、スクロール バーの親のサイズに合わせて動的にプロパティ。You might consider adjusting the Maximum property dynamically to match the size of the scroll bar's parent in proportion to pixel size or to the number of rows or lines displayed.

最大値は、プログラムによってのみアクセスできます。The maximum value can only be reached programmatically. スクロール バーの値は、実行時にユーザーとの対話が最大値に到達できません。The value of a scroll bar cannot reach its maximum value through user interaction at run time. ユーザーの操作によって到達可能な最大値が 1 だけでなく、Maximumプロパティの値を引いた、LargeChangeプロパティの値。The maximum value that can be reached through user interaction is equal to 1 plus the Maximum property value minus the LargeChange property value. かどうか、必要に応じて設定できます、Maximumプロパティを 1 の用語のアカウントに-1 オブジェクトのサイズ。If necessary, you can set the Maximum property to the size of the object -1 to account for the term of 1.

適用対象

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