RichTextBox.SelectionChanged Event
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Occurs when the selection of text within the control has changed.
public:
event EventHandler ^ SelectionChanged;public event EventHandler SelectionChanged;public event EventHandler? SelectionChanged;member this.SelectionChanged : EventHandler Public Custom Event SelectionChanged As EventHandler Event Type
Examples
The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the SelectionChanged event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing MessageBox.Show with Console.WriteLine or appending the message to a multiline TextBox.
To run the example code, paste it into a project that contains an instance of type RichTextBox named RichTextBox1. Then ensure that the event handler is associated with the SelectionChanged event.
private void RichTextBox1_SelectionChanged(Object sender, EventArgs e) {
MessageBox.Show("You are in the RichTextBox.SelectionChanged event.");
}
Private Sub RichTextBox1_SelectionChanged(sender as Object, e as EventArgs) _
Handles RichTextBox1.SelectionChanged
MessageBox.Show("You are in the RichTextBox.SelectionChanged event.")
End Sub
Remarks
You can create an event handler for this event to determine when the user has changed text selection within the control. An event handler for this event can be used to keep text selected until the user has completed a task within the application.
For more information about how to handle events, see Handling and Raising Events.
