Updated: August 2008
Gets or sets a value indicating whether the control and all its child controls are displayed.
(in System.Windows.Forms.dll)
Visual Basic (Declaration)
Public Property Visible As Boolean
Dim instance As Control
Dim value As Boolean
value = instance.Visible
instance.Visible = value
public bool Visible { get; set; }
public:
property bool Visible {
bool get ();
void set (bool value);
}
public function get Visible () : boolean
public function set Visible (value : boolean)
Property Value
Type:
System..::.Boolean
true if the control and all its child controls are displayed; otherwise, false. The default is true.
Note that even if Visible is set to true, the control might not be visible to the user if it is obscured behind other controls.
Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows CE Platform Note: When you check the Visible property during the processing of the OnLoad event, the property will return false even though the property has been set to be true.
The following code example uses the derived classes VScrollBar and HScrollBar and sets their Visible property values, based on the size of an Image being displayed in a PictureBox control. This example requires that a PictureBox has been created on a form and that HScrollBar and VScrollBar controls have been created on the PictureBox. This code should be called when the image is loaded into the picture box and by the Resize event of the form.
Public Sub DisplayScrollBars()
' Display or hide the scroll bars based upon
' whether the image is larger than the PictureBox.
If pictureBox1.Width > pictureBox1.Image.Width Then
hScrollBar1.Visible = False
Else
hScrollBar1.Visible = True
End If
If pictureBox1.Height > pictureBox1.Image.Height Then
vScrollBar1.Visible = False
Else
vScrollBar1.Visible = True
End If
End Sub 'DisplayScrollBars
public void DisplayScrollBars()
{
// Display or hide the scroll bars based upon
// whether the image is larger than the PictureBox.
if (pictureBox1.Width > pictureBox1.Image.Width)
{
hScrollBar1.Visible = false;
}
else
{
hScrollBar1.Visible = true;
}
if (pictureBox1.Height > pictureBox1.Image.Height)
{
vScrollBar1.Visible = false;
}
else
{
vScrollBar1.Visible = true;
}
}
public:
void DisplayScrollBars()
{
// Display or hide the scroll bars based upon
// whether the image is larger than the PictureBox.
if ( pictureBox1->Width > pictureBox1->Image->Width )
{
hScrollBar1->Visible = false;
}
else
{
hScrollBar1->Visible = true;
}
if ( pictureBox1->Height > pictureBox1->Image->Height )
{
vScrollBar1->Visible = false;
}
else
{
vScrollBar1->Visible = true;
}
}
public function DisplayScrollBars()
{
// Display or hide the scroll bars based upon
// whether the image is larger than the PictureBox.
if (pictureBox1.Width > pictureBox1.Image.Width)
{
hScrollBar1.Visible = false;
}
else
{
hScrollBar1.Visible = true;
}
if (pictureBox1.Height > pictureBox1.Image.Height)
{
vScrollBar1.Visible = false;
}
else
{
vScrollBar1.Visible = true;
}
}
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
.NET Compact Framework
Supported in: 3.5, 2.0, 1.0
Reference
Date | History | Reason |
|---|
August 2008
| Fixed reference about parent controls. |
Customer feedback.
|