HttpRequest.Params Eigenschaft
Definition
Wichtig
Einige Informationen beziehen sich auf Vorabversionen, die vor dem Release ggf. grundlegend überarbeitet werden. Microsoft übernimmt hinsichtlich der hier bereitgestellten Informationen keine Gewährleistungen, seien sie ausdrücklich oder konkludent.
Ruft eine kombinierte Auflistung von QueryString, , Form, Cookiesund ServerVariables Elementen ab.
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.NameValueCollectionPublic ReadOnly Property Params As NameValueCollectionEigenschaftswert
Ein NameValueCollection-Objekt.
Beispiele
Das folgende Codebeispiel zeigt, wie sie die Params Eigenschaft für eine Seite durchlaufen und wie jedes Schlüssel-Wert-Paar angezeigt wird.
<%@ 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>
Hinweise
Name-Wert-Paare werden der Auflistung in der folgenden Reihenfolge hinzugefügt:
Abfragezeichenfolgenparameter.
Formularfelder.
Cookies.
Servervariablen.
