DragEnter Event

RichTextBox.DragEnter Event

Occurs when an object is dragged into the control's bounds.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public event DragEventHandler DragEnter
/** @event */
public void add_DragEnter (DragEventHandler value)

/** @event */
public void remove_DragEnter (DragEventHandler value)

In JScript, you can handle the events defined by a class, but you cannot define your own.
Not applicable.

For more information about handling events, see Consuming Events.

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the DragEnter 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 System.Windows.Forms.MessageBox.Show with System.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 DragEnter event.

private void RichTextBox1_DragEnter(Object sender, DragEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "Data", e.Data );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "KeyState", e.KeyState );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "X", e.X );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Y", e.Y );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "AllowedEffect", e.AllowedEffect );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Effect", e.Effect );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "DragEnter Event" );
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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