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Control.Visible Property

Gets or sets a value indicating whether the control and all its parent controls are displayed.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

[LocalizableAttribute(true)] 
public bool Visible { get; set; }
/** @property */
public boolean get_Visible ()

/** @property */
public void set_Visible (boolean value)

public function get Visible () : boolean

public function set Visible (value : boolean)

Not applicable.

Property Value

true if the control and all its parent 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 2003 for Pocket PC, Windows Mobile 2003 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 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.get_Width() > pictureBox1.get_Image().get_Width()) {
        hScrollBar1.set_Visible(false);
    }
    else {
        hScrollBar1.set_Visible(true);
    }

    if (pictureBox1.get_Height() > pictureBox1.get_Image().get_Height()) {
        vScrollBar1.set_Visible(false);
    }
    else {
        vScrollBar1.set_Visible(true);
    }
} //DisplayScrollBars

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 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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