Control.Bottom Control.Bottom Control.Bottom Control.Bottom Property

定义

获取控件下边缘与其容器的工作区上边缘之间的距离(以像素为单位)。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

属性值

Int32 表示控件下边缘与其容器的工作区上边缘之间的距离(以像素为单位)。An Int32 representing the distance, in pixels, between the bottom edge of the control and the top edge of its container's client area.

示例

下面的代码示例使用Bottom属性定义TextBox控件相对于容器工作区的下限。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

注解

此属性的值等于Top属性值Height和属性值的总和。The value of this property is equal to the sum of the Top property value, and the Height property value.

Bottom属性为只读属性。The Bottom property is a read-only property. Top可以通过更改或Height属性的值或调用SetBoundsSetBoundsCoreUpdateBoundsSetClientSizeCore方法来处理此属性值。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.

适用于

另请参阅