HttpRequest.Params Propiedad

Definición

Obtiene una colección combinada de elementos QueryString, Form, Cookies y ServerVariables.Gets a combined collection of QueryString, Form, Cookies, and ServerVariables items.

public:
 property System::Collections::Specialized::NameValueCollection ^ Params { System::Collections::Specialized::NameValueCollection ^ get(); };
public System.Collections.Specialized.NameValueCollection Params { get; }
member this.Params : System.Collections.Specialized.NameValueCollection
Public ReadOnly Property Params As NameValueCollection

Valor de propiedad

NameValueCollection

Un objeto NameValueCollection.A NameValueCollection object.

Ejemplos

En el ejemplo de código siguiente se muestra cómo recorrer en iteración la Params propiedad de una página y cómo mostrar cada par clave-valor.The following code example shows how to loop through the Params property for a page and how to display each key/value pair.

<%@ 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">

    private void Page_Load(object sender, EventArgs e)
    {
        // Create a string to contain the paramaters'
        // information.
        string paramInfo = "";

        // Obtain a reference to the Request.Params
        // collection.
        NameValueCollection pColl = Request.Params;

        // Iterate through the collection and add
        // each key to the string variable.
        for(int i = 0; i <= pColl.Count - 1; i++)
        {
            paramInfo += "Key: " + pColl.GetKey(i) + "<br />";

            // Create a string array that contains
            // the values associated with each key.
            string[] pValues = pColl.GetValues(i);

            // Iterate through the array and add
            // each value to the string variable.
            for(int j = 0; j <= pValues.Length - 1; j++)
            {
                paramInfo += "Value:" + pValues[j] + "<br /><br />";

            }
        }

        // Set a Label's Text property to the values
        // contained in the string variable.
        lblValues.Text = paramInfo;
    }

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">
        <asp:Label id="lblValues" runat="server" />
    </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">

    Private Sub Page_Load(sender As Object, e As EventArgs)

        ' Create a string to contain the paramaters'
        ' information.
        Dim paramInfo As String = ""

        Dim i, j As Integer

        ' Obtain a reference to the Request.Params
        ' collection.
        Dim pColl As NameValueCollection = Request.Params

        ' Iterate through the collection and add
        ' each key to the string variable.
        For i = 0 To pColl.Count - 1

            paramInfo += "Key: " + pColl.GetKey(i) + "<br />"

            ' Create a string array that contains
            ' the values associated with each key.
            Dim pValues() As String  = pColl.GetValues(i)

            ' Iterate through the array and add
            ' each value to the string variable.
            For j = 0 To pValues.Length - 1

                paramInfo += "Value:" + pValues(j) + "<br /><br />"

            Next j
        Next i

        ' Set a Label's Text property to the values
        ' contained in the string variable.
        lblValues.Text = paramInfo
    End Sub

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">
        <asp:Label id="lblValues" runat="server" />
    </form>
</body>
</html>

Comentarios

Los pares de nombre y valor se agregan a la colección en el orden siguiente:Name-value pairs are added to the collection in the following order:

  1. Parámetros de cadena de consulta.Query-string parameters.

  2. Campos de formulario.Form fields.

  3. Propias.Cookies.

  4. Variables de servidor.Server variables.

Se aplica a