Page.RegisterStartupScript(String, String) Page.RegisterStartupScript(String, String) Page.RegisterStartupScript(String, String) Page.RegisterStartupScript(String, String) Method

Definición

Advertencia

Esta API está ya obsoleta.

Emite un bloque de script de cliente en la respuesta a la página.Emits a client-side script block in the page response.

public:
 virtual void RegisterStartupScript(System::String ^ key, System::String ^ script);
[System.Obsolete("The recommended alternative is ClientScript.RegisterStartupScript(Type type, string key, string script). http://go.microsoft.com/fwlink/?linkid=14202")]
public virtual void RegisterStartupScript (string key, string script);
abstract member RegisterStartupScript : string * string -> unit
override this.RegisterStartupScript : string * string -> unit
Public Overridable Sub RegisterStartupScript (key As String, script As String)

Parámetros

key
String String String String

Clave única que identifica un bloque de script.Unique key that identifies a script block.

script
String String String String

Contenido del script que se enviará al cliente.Content of script that will be sent to the client.

Ejemplos

En el ejemplo de código siguiente se muestra el RegisterStartupScript uso del método junto con IsStartupScriptRegistered el método.The following code example demonstrates the use of the RegisterStartupScript method in conjunction with the IsStartupScriptRegistered method. Si el ECMAScript escrito en el bloque de declaración de código todavía no se ha registrado, según lo IsStartupScriptRegistered determinado por el método RegisterStartupScript , se realiza una llamada.If the ECMAScript written in the code declaration block has not already been registered, as determined by the IsStartupScriptRegistered method, then a RegisterStartupScript call is made.

<%@ Page Language="C#"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
  public void Page_Load(Object sender, EventArgs e)
  {
    String csname1 = "PopupScript";
    String csname2 = "ButtonClickScript";

    if (!IsClientScriptBlockRegistered(csname1))
    {
        String cstext1 = "<script type=\"text/javascript\">" +
            "alert('Hello World');</" + "script>";
        RegisterStartupScript(csname1, cstext1);
    }

    if (!IsClientScriptBlockRegistered(csname2))
    {
      StringBuilder cstext2 = new StringBuilder();
      cstext2.Append("<script type=\"text/javascript\"> function DoClick() {");
      cstext2.Append("Form1.Message.value='Text from client script.'} </");
      cstext2.Append("script>");
      RegisterClientScriptBlock(csname2, cstext2.ToString());
    }
  }
</script>
<html  >
  <head>
    <title>RegisterClientScriptBlock Example</title>
  </head>
  <body>
     <form id="Form1"
         runat="server">
        <input type="text" id="Message" /> <input type="button" value="ClickMe" onclick="DoClick()" />
     </form>
  </body>
</html>

<%@ Page Language="VB"  %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
        Dim csname1 As String = "PopupScript"

        Dim csname2 As String = "ButtonClickScript"
    
        If Not IsClientScriptBlockRegistered(csname1) Then
            Dim cstext1 As String = "<script type=""text/javascript"">" & _
                "alert('Hello World');</" & "script>"
            RegisterStartupScript(csname1, cstext1)
        End If
    
        If Not IsClientScriptBlockRegistered(csname2) Then
            Dim cstext2 As New StringBuilder()
            cstext2.Append("<script type=""text/javascript""> function DoClick() {")
            cstext2.Append("Form1.Message.value='Text from client script.'} </")
            cstext2.Append("script>")
            RegisterClientScriptBlock(csname2, cstext2.ToString())
        End If
    End Sub
</script>
<html  >
  <head>
    <title>RegisterClientScriptBlock Example</title>
  </head>
  <body>
     <form id="Form1"
         runat="server">
        <input type="text" id="Message" /> <input type="button" value="ClickMe" onclick="DoClick()" />
     </form>
  </body>
</html>

Comentarios

De forma similar RegisterClientScriptBlock al método, RegisterStartupScript el método emite el script justo antes de Page la etiqueta de cierre del elemento <form runat= server> del objeto.Similar to the RegisterClientScriptBlock method, the RegisterStartupScript method emits the script just before the closing tag of the Page object's <form runat= server> element. Asegúrese de incluir los elementos de apertura <script> y cierre en torno a la cadena de bloque script de script especificada en el parámetro.Be sure to include opening and closing <script> elements around the script block string specified in the script parameter.

Dado que este método usa una clave para identificar el bloque de script, no es necesario emitir el bloque de script al flujo de salida cada vez que lo solicita una instancia de control de servidor diferente.Because this method uses a key to identify the script block, the script block does not have to be emitted to the output stream each time it is requested by a different server control instance

Los bloques de scripts con key los mismos valores de parámetro se consideran duplicados.Any script blocks with the same key parameter values are considered duplicates.

Nota

Recuerde incluir etiquetas de Comentario HTML en torno a su script para que no se represente si el explorador que realiza la solicitud no admite scripts.Remember to include HTML comment tags around your script so that it will not be rendered if the requesting browser does not support scripts.

El método RegisterStartupScript está desusado.The RegisterStartupScript method has been deprecated. Por ello, utilice el método RegisterStartupScript en la clase ClientScriptManager.Use the RegisterStartupScript method in the ClientScriptManager class instead.

Se aplica a

Consulte también: