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Control.Contains Method

Retrieves a value indicating whether the specified control is a child of the control.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public bool Contains(
	Control ctl
)

Parameters

ctl
Type: System.Windows.Forms.Control

The Control to evaluate.

Return Value

Type: System.Boolean
true if the specified control is a child of the control; otherwise, false.

The following code example ensures that a Label is visible by calling its BringToFront method. This example requires that you have a Form with a Panel named panel1, and a Label named label1.

private void MakeLabelVisible()
{
   /* If the panel contains label1, bring it 
   * to the front to make sure it is visible. */ 
   if(panel1.Contains(label1))
   {
      label1.BringToFront();
   }
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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