ParameterCollection.Remove(Parameter) Método

Definición

Quita el objeto Parameter especificado de la colección ParameterCollection.Removes the specified Parameter object from the ParameterCollection collection.

public:
 void Remove(System::Web::UI::WebControls::Parameter ^ parameter);
public void Remove (System.Web.UI.WebControls.Parameter parameter);
member this.Remove : System.Web.UI.WebControls.Parameter -> unit

Parámetros

parameter
Parameter

Parameter que se va a quitar de ParameterCollection.The Parameter to remove from the ParameterCollection.

Ejemplos

En el ejemplo de código siguiente se muestra cómo usar el método Remove y el indexador Item[Int32] para quitar un objeto Parameter de una colección de ParameterCollection.The following code example demonstrates how to use the Remove method and the Item[Int32] indexer to remove a Parameter object from a ParameterCollection collection. En este ejemplo, se agregan varios objetos QueryStringParameter a una colección SelectParameters, se quita un objeto QueryStringParameter de la colección y se imprime el orden de la colección cuando se carga la página.In this example, several QueryStringParameter objects are added to a SelectParameters collection, one QueryStringParameter object is removed from the collection, and the order of the collection is printed when the page loads.

<%@page Language="C#" %>
<SCRIPT runat="server">
private void Page_Load(object sender, EventArgs e) {

    SqlDataSource aSqlDataSource = new SqlDataSource();

    // Security Note: The SqlDataSource uses a QueryStringParameter,
    // Security Note: which does not perform validation of input from the client.

    QueryStringParameter qs1 =
        new QueryStringParameter("QueryStringParam1","requestfield1");
    aSqlDataSource.SelectParameters.Add(qs1);

    QueryStringParameter qs2 =
        new QueryStringParameter("QueryStringParam2","requestfield2");
    aSqlDataSource.SelectParameters.Add(qs2);

    QueryStringParameter qs3 =
        new QueryStringParameter("QueryStringParam3","requestfield3");
    aSqlDataSource.SelectParameters.Add(qs3);

    // Remove the QueryStringParameter named QueryStringParameter2
    // using the Remove method and the ParameterCollection indexer
    // property.
    aSqlDataSource.SelectParameters.Remove( aSqlDataSource.SelectParameters["QueryStringParam2"] );

    // Iterate through the ParameterCollection and print out the
    // names of the Parameters contained by it.
    foreach (Parameter aParameter in aSqlDataSource.SelectParameters) {
        Response.Write(aParameter.Name + "<BR>");
    }
}
</SCRIPT>
<%@page Language="VB" %>
<SCRIPT runat="server">
Sub Page_Load(sender As Object, e As EventArgs)

    Dim aSqlDataSource As New SqlDataSource()

    ' Security Note: The SqlDataSource uses a QueryStringParameter,
    ' Security Note: which does not perform validation of input from the client.

    Dim qs1 As New QueryStringParameter("QueryStringParam1","requestfield1")
    aSqlDataSource.SelectParameters.Add(qs1)

    Dim qs2 As New QueryStringParameter("QueryStringParam2","requestfield2")
    aSqlDataSource.SelectParameters.Add(qs2)

    Dim qs3 As New QueryStringParameter("QueryStringParam3","requestfield3")
    aSqlDataSource.SelectParameters.Add(qs3)

    ' Remove the QueryStringParameter named QueryStringParameter2
    ' using the Remove method and the ParameterCollection indexer
    ' property.
    aSqlDataSource.SelectParameters.Remove( aSqlDataSource.SelectParameters("QueryStringParam2") )

    ' Iterate through the ParameterCollection and print out the
    ' names of the Parameters contained by it.
    Dim aParameter As Parameter
    For Each aParameter in aSqlDataSource.SelectParameters
        Response.Write(aParameter.Name & "<BR>")
    Next
End Sub ' Page_Load
</SCRIPT>

Comentarios

Utilice este método para quitar el objeto de Parameter especificado de una colección de ParameterCollection.Use this method to remove the specified Parameter object from a ParameterCollection collection.

Se aplica a

Consulte también: