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Control.ControlCollection.RemoveAt Method

Removes a control from the control collection at the specified indexed location.

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

public void RemoveAt(
	int index
)

Parameters

index
Type: System.Int32

The index value of the Control to remove.

Implements

IList.RemoveAt(Int32)

When a Control is removed from the control collection, all subsequent controls are moved up one position in the collection.

You can also remove a Control that you previously added by using the Remove or Clear methods.

To add new Control objects to the collection, use the Add or AddRange methods.

The following code example removes the first Control in the Control.ControlCollection of the derived class Panel if the count of the collection is greater than zero. The example requires that you have created a Panel, a Button, and at least one other control on a Form. The other controls are added to the Panel control, and the Panel control added to the Form. When the button is clicked, the first control contained in the panel is removed from the Control.ControlCollection.

// Remove the first control in the collection. 
private void removeAtButton_Click(object sender, System.EventArgs e)
{
   if (panel1.Controls.Count > 0)
   {
      panel1.Controls.RemoveAt(0);
   }
}

.NET Framework

Supported in: 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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