Control.CanFocus Property

Reference

Definition

Namespace:: System.Windows.Forms

Assembly:: System.Windows.Forms.dll

Source:: Control.cs

Source:: Control.cs

Source:: Control.cs

Important

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Gets a value indicating whether the control can receive focus.

public:
 property bool CanFocus { bool get(); };

[System.ComponentModel.Browsable(false)]
public bool CanFocus { get; }

[<System.ComponentModel.Browsable(false)>]
member this.CanFocus : bool

Public ReadOnly Property CanFocus As Boolean

Property Value

Boolean

true if the control can receive focus; otherwise, false.

Attributes: BrowsableAttribute

Examples

The following code example sets focus to the specified Control, if it can receive focus.

public:
   void ControlSetFocus( Control^ control )
   {
      
      // Set focus to the control, if it can receive focus.
      if ( control->CanFocus )
      {
         control->Focus();
      }
   }

public void ControlSetFocus(Control control)
{
   // Set focus to the control, if it can receive focus.
   if(control.CanFocus)
   {
      control.Focus();
   }
}

Public Sub ControlSetFocus(control As Control)
   ' Set focus to the control, if it can receive focus.
   If control.CanFocus Then
      control.Focus()
   End If
End Sub

Remarks

In order for a control to receive input focus, the control must have a handle assigned to it, and the Visible and Enabled properties must both be set to true for both the control and all its parent controls, and the control must be a form or the control's outermost parent must be a form.

Applies to

Продукт	Версии
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

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