ToolStripDropDownItem.DropDownOpened ToolStripDropDownItem.DropDownOpened ToolStripDropDownItem.DropDownOpened ToolStripDropDownItem.DropDownOpened Event

Definición

Se produce cuando el ToolStripDropDown ha abierto.Occurs when the ToolStripDropDown has opened.

public:
 event EventHandler ^ DropDownOpened;
public event EventHandler DropDownOpened;
member this.DropDownOpened : EventHandler 
Public Custom Event DropDownOpened As EventHandler 

Ejemplos

En el ejemplo de código siguiente se muestra cómo controlar el DropDownOpened eventos para varios ToolStripDropDownItem controles.The following code example demonstrates how to handle the DropDownOpened event for multiple ToolStripDropDownItem controls. Este ejemplo de código forma parte de un ejemplo más extenso proporcionado para el ToolStripDropDownItem clase.This code example is part of a larger example provided for the ToolStripDropDownItem class.

// This method handles the DropDownOpened event from a 
// ToolStripDropDownItem. It displays the value of the 
// item's Text property in the form's StatusStrip control.
void toolStripDropDownItem_DropDownOpened(object sender, EventArgs e)
{
    ToolStripDropDownItem item = sender as ToolStripDropDownItem;

    string msg = String.Format("Item opened: {0}", item.Text);
    this.toolStripStatusLabel1.Text = msg;
}
' This method handles the DropDownOpened event from a 
' ToolStripDropDownItem. It displays the value of the 
' item's Text property in the form's StatusStrip control.
 Private Sub toolStripDropDownItem_DropDownOpened(ByVal sender As Object, ByVal e As EventArgs)

     Dim item As ToolStripDropDownItem = CType(sender, ToolStripDropDownItem)

     Dim msg As String = String.Format("Item opened: {0}", item.Text)
     Me.toolStripStatusLabel1.Text = msg

 End Sub

Comentarios

Este evento se produce cuando el usuario hace clic en la lista desplegable elemento o cuando se llama a la ShowDropDown método.This event occurs when the user clicks the drop down item or when you call the ShowDropDown method. Puede usar este evento para rellenar dinámicamente la ToolStripDropDown.You can use this event to dynamically populate the ToolStripDropDown.

Para obtener más información sobre el manejo de eventos, consulte controlar y provocar eventos.For more information about handling events, see Handling and Raising Events.

Se aplica a