HttpContext.Current 屬性

定義

取得或設定目前 HTTP 要求的 HttpContext 物件。Gets or sets the HttpContext object for the current HTTP request.

public:
 static property System::Web::HttpContext ^ Current { System::Web::HttpContext ^ get(); void set(System::Web::HttpContext ^ value); };
public static System.Web.HttpContext Current { get; set; }
member this.Current : System.Web.HttpContext with get, set
Public Shared Property Current As HttpContext

屬性值

HttpContext

目前 HTTP 要求的 HttpContext 執行個體。The HttpContext instance for the current HTTP request.

範例

下列程式碼範例會使用 Current 屬性來存取 HttpContext.AddErrorHttpContext.ClearError 方法,以及 HttpContext.AllErrors 屬性。The following code example uses the Current property to access the HttpContext.AddError and HttpContext.ClearError methods and the HttpContext.AllErrors property. 此範例會使用 AddError 方法來建立三個自訂例外狀況,並使用 AllErrors 屬性將這些例外狀況載入至陣列。The example creates three custom exceptions using the AddError method and uses the AllErrors property to load these exceptions to an array. 然後,它會將陣列寫入包含的頁面,並使用 ClearError 方法來清除 Context 屬性中的所有錯誤。It then writes the array to the containing page and uses the ClearError method to clear all the errors from the Context property.

protected void Page_Load(object sender, EventArgs e)
{
    HttpContext context = HttpContext.Current;
    Response.Write("<p>HttpContext.Current Example:</p>");

    // Add three custom exceptions.
    context.AddError(new Exception("New Exception #1"));
    context.AddError(new Exception("New Exception #2"));
    context.AddError(new Exception("New Exception #3"));

    // Capture all the new Exceptions in an array.
    Exception[] errs = context.AllErrors;

    foreach (Exception ex in errs)
    {
        Response.Write("<p>" + Server.HtmlEncode(ex.ToString()) + "</p>");
    }

    // Clear the exceptions so ASP.NET won't handle them.
    context.ClearError();
}
Protected Sub Page_Load(sender As Object, e As EventArgs)
Dim context As HttpContext = HttpContext.Current
Response.Write("<p>HttpContext.Current Example:</p>")

' Add three custom exceptions.
context.AddError(New Exception("New Exception #1"))
context.AddError(New Exception("New Exception #2"))
context.AddError(New Exception("New Exception #3"))

' Capture all the new Exceptions in an array.
Dim errs As Exception() = context.AllErrors

For Each ex As Exception In errs
Response.Write("<p>" & Server.HtmlEncode(ex.ToString()) & "</p>")
Next

' Clear the exceptions so ASP.NET won't handle them.
context.ClearError()
End Sub

備註

此屬性是 HttpContext 類別的靜態屬性。This property is a static property of the HttpContext class. 屬性會儲存套用至目前要求的 HttpContext 實例。The property stores the HttpContext instance that applies to the current request. 這個實例的屬性是 HttpContext 類別的非靜態屬性。The properties of this instance are the non-static properties of the HttpContext class.

您也可以使用 Page.Context 屬性來存取目前 HTTP 要求的 HttpContext 物件。You can also use the Page.Context property to access the HttpContext object for the current HTTP request.

適用於

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