Control.Left Control.Left Control.Left Control.Left Property

Definition

Ruft den Abstand zwischen dem linken Rand des Steuerelements und dem linken Rand des Clientbereichs des zugehörigen Containers in Pixel ab oder legt diesen fest.Gets or sets the distance, in pixels, between the left edge of the control and the left edge of its container's client area.

public:
 property int Left { int get(); void set(int value); };
[System.ComponentModel.Browsable(false)]
public int Left { get; set; }
member this.Left : int with get, set
Public Property Left As Integer

Eigenschaftswert

Ein Int32-Wert, der den Abstand zwischen dem linken Rand des Steuerelements und dem linken Rand des Clientbereichs des zugehörigen Containers in Pixel darstellt.An Int32 representing the distance, in pixels, between the left edge of the control and the left edge of its container's client area.

Beispiele

Das folgende Codebeispiel erstellt drei Button Steuerelemente eines Formulars und ihre Größe und Position wird mit den verschiedenen hinsichtlich der Größe und Speicherort-bezogene Eigenschaften.The following code example creates three Button controls on a form and sets their size and location by using the various size-related and location-related properties. In diesem Beispiel benötigen Sie eine Form , die deren Breite und Höhe des mindestens 300 Pixel.This example requires that you have a Form that has a width and height of at least 300 pixels.

// Create three buttons and place them on a form using
// several size and location related properties.
void AddOKCancelButtons()
{
   
   // Set the button size and location using
   // the Size and Location properties.
   Button^ buttonOK = gcnew Button;
   buttonOK->Location = Point(136,248);
   buttonOK->Size = System::Drawing::Size( 75, 25 );
   
   // Set the Text property and make the
   // button the form's default button.
   buttonOK->Text = "&OK";
   this->AcceptButton = buttonOK;
   
   // Set the button size and location using the Top,
   // Left, Width, and Height properties.
   Button^ buttonCancel = gcnew Button;
   buttonCancel->Top = buttonOK->Top;
   buttonCancel->Left = buttonOK->Right + 5;
   buttonCancel->Width = buttonOK->Width;
   buttonCancel->Height = buttonOK->Height;
   
   // Set the Text property and make the
   // button the form's cancel button.
   buttonCancel->Text = "&Cancel";
   this->CancelButton = buttonCancel;
   
   // Set the button size and location using
   // the Bounds property.
   Button^ buttonHelp = gcnew Button;
   buttonHelp->Bounds = Rectangle(10,10,75,25);
   
   // Set the Text property of the button.
   buttonHelp->Text = "&Help";
   
   // Add the buttons to the form.
   array<Control^>^temp1 = {buttonOK,buttonCancel,buttonHelp};
   this->Controls->AddRange( temp1 );
}
// Create three buttons and place them on a form using 
// several size and location related properties. 
private void AddOKCancelButtons()
{
   // Set the button size and location using 
   // the Size and Location properties.
   Button buttonOK = new Button();
   buttonOK.Location = new Point(136,248);
   buttonOK.Size = new Size(75,25);
   // Set the Text property and make the 
   // button the form's default button. 
   buttonOK.Text = "&OK";
   this.AcceptButton = buttonOK;

   // Set the button size and location using the Top, 
   // Left, Width, and Height properties.
   Button buttonCancel = new Button();
   buttonCancel.Top = buttonOK.Top;
   buttonCancel.Left = buttonOK.Right + 5;
   buttonCancel.Width = buttonOK.Width;
   buttonCancel.Height = buttonOK.Height;
   // Set the Text property and make the 
   // button the form's cancel button.
   buttonCancel.Text = "&Cancel";
   this.CancelButton = buttonCancel;

   // Set the button size and location using 
   // the Bounds property.
   Button buttonHelp = new Button();
   buttonHelp.Bounds = new Rectangle(10,10, 75, 25);
   // Set the Text property of the button.
   buttonHelp.Text = "&Help";

   // Add the buttons to the form.
   this.Controls.AddRange(new Control[] {buttonOK, buttonCancel, buttonHelp} );
}
' Create three buttons and place them on a form using 
' several size and location related properties. 
Private Sub AddOKCancelButtons()
   ' Set the button size and location using 
      ' the Size and Location properties. 
   Dim buttonOK As New Button()
   buttonOK.Location = New Point(136, 248)
   buttonOK.Size = New Size(75, 25)
   ' Set the Text property and make the 
   ' button the form's default button. 
   buttonOK.Text = "&OK"
   Me.AcceptButton = buttonOK
   
   ' Set the button size and location using the Top, 
   ' Left, Width, and Height properties. 
   Dim buttonCancel As New Button()
   buttonCancel.Top = buttonOK.Top
   buttonCancel.Left = buttonOK.Right + 5
   buttonCancel.Width = buttonOK.Width
   buttonCancel.Height = buttonOK.Height
   ' Set the Text property and make the 
   ' button the form's cancel button. 
   buttonCancel.Text = "&Cancel"
   Me.CancelButton = buttonCancel
   
   ' Set the button size and location using 
   ' the Bounds property. 
   Dim buttonHelp As New Button()
   buttonHelp.Bounds = New Rectangle(10, 10, 75, 25)
   ' Set the Text property of the button.
   buttonHelp.Text = "&Help"
   
   ' Add the buttons to the form.
   Me.Controls.AddRange(New Control() {buttonOK, buttonCancel, buttonHelp})
End Sub

Hinweise

Die Left Eigenschaftswert entspricht der Point.X Eigenschaft der Location -Eigenschaftswert des Steuerelements.The Left property value is equivalent to the Point.X property of the Location property value of the control.

Änderungen an der Width und Left Eigenschaftswerte Ursache der Right -Eigenschaftswert des Steuerelements zu ändern.Changes made to the Width and Left property values cause the Right property value of the control to change.

Gilt für:

Siehe auch