MouseEventArgs.LeftButton Property


Gets the current state of the left mouse button.

Namespace:   System.Windows.Input
Assembly:  PresentationCore (in PresentationCore.dll)

public MouseButtonState LeftButton { get; }

Property Value

Type: System.Windows.Input.MouseButtonState

The current state of the left mouse button, which is either Pressed or Released. There is no default value.

The Mouse class provides additional properties and methods for determining the state of the mouse.

The following example prints a message if the state of the LeftButton property is Pressed.

if (e.LeftButton == MouseButtonState.Pressed)
    MessageBox.Show("The Left Mouse Button is pressed");

.NET Framework
Available since 3.0
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