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GetChildIndex Method (Control)
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Control.ControlCollection.GetChildIndex Method (Control)

Retrieves the index of the specified child control within the control collection.

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

public int GetChildIndex(
	Control child
)

Parameters

child
Type: System.Windows.Forms.Control

The Control to search for in the control collection.

Return Value

Type: System.Int32
A zero-based index value that represents the location of the specified child control within the control collection.

ExceptionCondition
ArgumentException

The child Control is not in the Control.ControlCollection.

The control with an index value of zero is at the top of the z-order, and higher numbers are closer to the bottom.

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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