Control.Bottom 屬性

定義

取得控制項下邊緣和其容器工作區 (Client Area) 上邊緣之間的距離 (單位為像素)。Gets the distance, in pixels, between the bottom edge of the control and the top edge of its container's client area.

public:
 property int Bottom { int get(); };
[System.ComponentModel.Browsable(false)]
public int Bottom { get; }
member this.Bottom : int
Public ReadOnly Property Bottom As Integer

屬性值

Int32,代表控制項下緣和其容器工作區上緣之間的距離 (單位為像素)。An Int32 representing the distance, in pixels, between the bottom edge of the control and the top edge of its container's client area.

屬性

範例

下列程式碼範例會使用 Bottom 屬性來定義相對於容器的工作區之 TextBox 控制項的較低限制。The following code example uses the Bottom property to define the lower limit of a TextBox control relative to the client area of the container.

   // This example demonstrates how to use the KeyUp event with the Help class to display
   // pop-up style help to the user of the application. When the user presses F1, the Help
   // class displays a pop-up window, similar to a ToolTip, near the control. This example assumes
   // that a TextBox control, named textBox1, has been added to the form and its KeyUp
   // event has been connected to this event handler method.
private:
   void textBox1_KeyUp( Object^ /*sender*/, System::Windows::Forms::KeyEventArgs^ e )
   {
      
      // Determine whether the key entered is the F1 key. Display help if it is.
      if ( e->KeyCode == Keys::F1 )
      {
         
         // Display a pop-up help topic to assist the user.
         Help::ShowPopup( textBox1, "Enter your first name", Point(textBox1->Right,this->textBox1->Bottom) );
      }
   }
// This example demonstrates how to use the KeyUp event with the Help class to display
// pop-up style help to the user of the application. When the user presses F1, the Help
// class displays a pop-up window, similar to a ToolTip, near the control. This example assumes
// that a TextBox control, named textBox1, has been added to the form and its KeyUp
// event has been contected to this event handler method.
private void textBox1_KeyUp(object sender, System.Windows.Forms.KeyEventArgs e)
{
    // Determine whether the key entered is the F1 key. Display help if it is.
    if(e.KeyCode == Keys.F1)
    {
        // Display a pop-up help topic to assist the user.
        Help.ShowPopup(textBox1, "Enter your first name", new Point(textBox1.Right, this.textBox1.Bottom));
    }
}
' This example demonstrates how to use the KeyUp event with the Help class to display
' pop-up style help to the user of the application. When the user presses F1, the Help
' class displays a pop-up window, similar to a ToolTip, near the control. This example assumes
' that a TextBox control, named textBox1, has been added to the form and its KeyUp
' event has been contected to this event handler method.
Private Sub textBox1_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles textBox1.KeyUp
    ' Determine whether the key entered is the F1 key. Display help if it is.
    If e.KeyCode = Keys.F1 Then
        ' Display a pop-up help topic to assist the user.
        Help.ShowPopup(textBox1, "Enter your first name", New Point(textBox1.Right, Me.textBox1.Bottom))
    End If
End Sub

備註

這個屬性的值等於 Top 屬性值的總和,以及 Height 屬性值。The value of this property is equal to the sum of the Top property value, and the Height property value.

Bottom 屬性是唯讀屬性。The Bottom property is a read-only property. 您可以藉由變更 TopHeight 屬性的值,或呼叫 SetBoundsSetBoundsCoreUpdateBoundsSetClientSizeCore 方法來操作此屬性值。You can manipulate this property value by changing the value of the Top or Height properties or calling the SetBounds, SetBoundsCore, UpdateBounds, or SetClientSizeCore methods.

適用於

另請參閱