System.Windows.Forms 1.0.5000.0 2.0.0.0 System.EventArgs System.Runtime.InteropServices.ComVisible(true) The event occurs when the checked state of an item in a checked list box changes. The class specifies the index of the item to change, the current value of the check box for the item, and the new value to set for the check box. For more information about handling events, see Consuming Events.

Provides data for the event of the and controls.

Constructor To be added.

Initializes a new instance of the class.

The zero-based index of the item to change. One of the values that indicates whether to change the check box for the item to be checked, unchecked, or indeterminate. One of the values that indicates whether the check box for the item is currently checked, unchecked, or indeterminate. 1.0.5000.0 2.0.0.0 Property System.Windows.Forms.CheckState To be added. This property enables you to determine the check state of the specified item in the before the check state change to apply is made.

Gets a value indicating the current state of the item's check box.

1.0.5000.0 2.0.0.0 Property System.Int32 To be added. You can use this property to determine which item's check box in the is being changed.

Gets the zero-based index of the item to change.

1.0.5000.0 2.0.0.0 Property System.Windows.Forms.CheckState To be added. This property enables you to determine the new check state for the specified item before the check state is changed by the control. In addition to determining the new check state, you can use this property in an event handler for the event to change the state to a different check state than the one specified. For example, if the user placed a check mark next to an item in the that you have determined should not be checked based on the state of your application, you can override the change in the check mark state by setting this property to its previous setting or to a different check state.

Gets or sets a value indicating whether to set the check box for the item to be checked, unchecked, or indeterminate.

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