Occurs when an object is dragged into the control's bounds.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
<BrowsableAttribute(False)> _
Public Event DragEnter As DragEventHandler[BrowsableAttribute(false)]
public event DragEventHandler DragEnter[BrowsableAttribute(false)]
public:
event DragEventHandler^ DragEnter {
void add (DragEventHandler^ value);
void remove (DragEventHandler^ value);
}[<BrowsableAttribute(false)>]
member DragEnter : IEvent<DragEventHandler,
DragEventArgs>
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 MessageBox
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 Sub RichTextBox1_DragEnter(sender as Object, e as DragEventArgs) _
Handles RichTextBox1.DragEnter
Dim messageBoxVB as New System.Text.StringBuilder()
messageBoxVB.AppendFormat("{0} = {1}", "Data", e.Data)
messageBoxVB.AppendLine()
messageBoxVB.AppendFormat("{0} = {1}", "KeyState", e.KeyState)
messageBoxVB.AppendLine()
messageBoxVB.AppendFormat("{0} = {1}", "X", e.X)
messageBoxVB.AppendLine()
messageBoxVB.AppendFormat("{0} = {1}", "Y", e.Y)
messageBoxVB.AppendLine()
messageBoxVB.AppendFormat("{0} = {1}", "AllowedEffect", e.AllowedEffect)
messageBoxVB.AppendLine()
messageBoxVB.AppendFormat("{0} = {1}", "Effect", e.Effect)
messageBoxVB.AppendLine()
MessageBox.Show(messageBoxVB.ToString(),"DragEnter Event")
End Sub
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 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.