ScrollBars Enumeration

  • Referenz

Definition

Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll

Gibt an, welche Schiebeleisten in einem Steuerelement sichtbar sind.

public enum class ScrollBars
public enum ScrollBars
type ScrollBars = 
Public Enum ScrollBars
Vererbung
Object
ValueType
Enum
ScrollBars

Felder

Both 3

Sowohl die horizontale als auch die vertikale Schiebeleiste werden angezeigt.
Horizontal 1

Es werden nur horizontale Schiebeleisten angezeigt.
None 0

Es werden keine Schiebeleisten angezeigt.
Vertical 2

Es werden nur vertikale Schiebeleisten angezeigt.

Beispiele

Im folgenden Codebeispiel wird die Verwendung der ScrollBars -Enumeration veranschaulicht. Fügen Sie zum Ausführen des Beispiels den folgenden Code in ein Formular ein. Rufen Sie die SetFourDifferentScrollBars -Methode im Konstruktor oder Load der Ereignisbehandlungsmethode des Formulars auf.

   // Declare four textboxes.
internal:
   System::Windows::Forms::TextBox^ vertical;
   System::Windows::Forms::TextBox^ horizontal;
   System::Windows::Forms::TextBox^ both;
   System::Windows::Forms::TextBox^ none;

private:
   void SetFourDifferentScrollBars()
   {
      this->vertical = gcnew System::Windows::Forms::TextBox;
      this->horizontal = gcnew System::Windows::Forms::TextBox;
      this->both = gcnew System::Windows::Forms::TextBox;
      this->none = gcnew System::Windows::Forms::TextBox;
      
      // Create a string for the Text property.
      String^ startString = "The scroll bar style for my textbox is: ";
      
      // Set the location of the four textboxes.
      horizontal->Location = Point(10,10);
      vertical->Location = Point(10,70);
      none->Location = Point(10,170);
      both->Location = Point(10,110);
      
      // For horizonal scroll bars, the Multiline property must
      // be true and the WordWrap property must be false.
      // Increase the size of the Height property to ensure the 
      // scroll bar is visible.
      horizontal->ScrollBars = ScrollBars::Horizontal;
      horizontal->Multiline = true;
      horizontal->WordWrap = false;
      horizontal->Height = 40;
      horizontal->Text = String::Concat( startString, ScrollBars::Horizontal );
      
      // For the vertical scroll bar, Multiline must be true.
      vertical->ScrollBars = ScrollBars::Vertical;
      vertical->Multiline = true;
      vertical->Text = String::Concat( startString, ScrollBars::Vertical );
      
      // For both scroll bars, the Multiline property 
      // must be true, and the WordWrap property must be false.
      // Increase the size of the Height property to ensure the 
      // scroll bar is visible.
      both->ScrollBars = ScrollBars::Both;
      both->Multiline = true;
      both->WordWrap = false;
      both->Height = 40;
      both->AcceptsReturn = true;
      both->Text = String::Concat( startString, ScrollBars::Both );
      
      // The none scroll bar does not require specific 
      // property settings.
      none->ScrollBars = ScrollBars::None;
      none->Text = String::Concat( startString, ScrollBars::None );
      
      // Add the textboxes to the form.
      this->Controls->Add( this->vertical );
      this->Controls->Add( this->horizontal );
      this->Controls->Add( this->both );
      this->Controls->Add( this->none );
   }


// Declare four textboxes.
internal System.Windows.Forms.TextBox vertical;
internal System.Windows.Forms.TextBox horizontal;
internal System.Windows.Forms.TextBox both;
internal System.Windows.Forms.TextBox none;

private void SetFourDifferentScrollBars()
{
    
    this.vertical = new System.Windows.Forms.TextBox();
    this.horizontal = new System.Windows.Forms.TextBox();
    this.both = new System.Windows.Forms.TextBox();
    this.none = new System.Windows.Forms.TextBox();

    // Create a string for the Text property.
    string startString = "The scroll bar style for my textbox is: ";

    // Set the location of the four textboxes.
    horizontal.Location = new Point(10, 10);
    vertical.Location = new Point(10, 70);
    none.Location = new Point(10, 170);
    both.Location = new Point(10, 110);

    // For horizonal scroll bars, the Multiline property must
    // be true and the WordWrap property must be false.
    // Increase the size of the Height property to ensure the 
    // scroll bar is visible.
    horizontal.ScrollBars = ScrollBars.Horizontal;
    horizontal.Multiline = true;
    horizontal.WordWrap = false;
    horizontal.Height = 40;
    horizontal.Text = startString + 
        ScrollBars.Horizontal.ToString();

    // For the vertical scroll bar, Multiline must be true.
    vertical.ScrollBars = ScrollBars.Vertical;
    vertical.Multiline = true;
    vertical.Text = startString + ScrollBars.Vertical.ToString();

    // For both scroll bars, the Multiline property 
    // must be true, and the WordWrap property must be false.
    // Increase the size of the Height property to ensure the 
    // scroll bar is visible.
    both.ScrollBars = ScrollBars.Both;
    both.Multiline = true;
    both.WordWrap = false;
    both.Height = 40;
    both.AcceptsReturn = true;
    both.Text = startString + ScrollBars.Both.ToString();

    // The none scroll bar does not require specific 
    // property settings.
    none.ScrollBars = ScrollBars.None;
    none.Text = startString + ScrollBars.None.ToString();

    // Add the textboxes to the form.
    this.Controls.Add(this.vertical);
    this.Controls.Add(this.horizontal);
    this.Controls.Add(this.both);
    this.Controls.Add(this.none);
}


' Declare four textboxes.
Friend WithEvents vertical As System.Windows.Forms.TextBox
Friend WithEvents horizontal As System.Windows.Forms.TextBox
Friend WithEvents both As System.Windows.Forms.TextBox
Friend WithEvents none As System.Windows.Forms.TextBox
    
Private Sub SetFourDifferentScrollBars()

    Me.vertical = New System.Windows.Forms.TextBox
    Me.horizontal = New System.Windows.Forms.TextBox
    Me.both = New System.Windows.Forms.TextBox
    Me.none = New System.Windows.Forms.TextBox

    ' Create a string for the Text property.
    Dim startString As String = _
        "The scroll bar style for my textbox is: "

    ' Set the location of the four textboxes.
    horizontal.Location = New Point(10, 10)
    vertical.Location = New Point(10, 70)
    none.Location = New Point(10, 170)
    both.Location = New Point(10, 110)

    ' For horizonal scroll bars, the Multiline property must
    ' be true and the WordWrap property must be false.
    ' Increase the size of the Height property to ensure the 
    ' scroll bar is visible.
    horizontal.ScrollBars = ScrollBars.Horizontal
    horizontal.Multiline = True
    horizontal.WordWrap = False
    horizontal.Height = 40
    horizontal.Text = startString & ScrollBars.Horizontal.ToString()

    ' For the vertical scroll bar, Multiline must be true.
    vertical.ScrollBars = ScrollBars.Vertical
    vertical.Multiline = True
    vertical.Text = startString & ScrollBars.Vertical.ToString()

    ' For both scroll bars, the Multiline property 
    ' must be true, and the WordWrap property must be false.
    ' Increase the size of the Height property to ensure the 
    ' scroll bar is visible.
    both.ScrollBars = ScrollBars.Both
    both.Multiline = True
    both.WordWrap = False
    both.Height = 40
    both.AcceptsReturn = True
    both.Text = startString & ScrollBars.Both.ToString()

    ' The none scroll bar does not require specific 
    ' property settings.
    none.ScrollBars = ScrollBars.None
    none.Text = startString & ScrollBars.None.ToString()

    ' Add the textboxes to the form.
    Me.Controls.Add(Me.vertical)
    Me.Controls.Add(Me.horizontal)
    Me.Controls.Add(Me.both)
    Me.Controls.Add(Me.none)

End Sub

Hinweise

Diese Enumeration wird von TextBox.ScrollBarsverwendet.

Nicht alle Steuerelemente unterstützen Bildlaufleisten. Verwenden Sie diese Enumeration, um anzugeben, welche Bildlaufleisten unter bestimmten oder allen Umständen auf einem Steuerelement sichtbar sind.

Gilt für:

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