Page.Context 屬性

定義

命名空間:

System.Web.UI

組件:

System.Web.dll

取得與網頁關聯的 HttpContext 物件。

protected:
 virtual property System::Web::HttpContext ^ Context { System::Web::HttpContext ^ get(); };

protected public:
 virtual property System::Web::HttpContext ^ Context { System::Web::HttpContext ^ get(); };

protected override System.Web.HttpContext Context { get; }

protected internal override System.Web.HttpContext Context { get; }

member this.Context : System.Web.HttpContext

Protected Overrides ReadOnly Property Context As HttpContext

Protected Friend Overrides ReadOnly Property Context As HttpContext

屬性值

HttpContext

HttpContext 物件，包含與目前網頁相關聯的資訊。

範例

下列程式碼範例會 Context 使用 屬性來存取 HttpContext.AddError 和 HttpContext.ClearError 方法和 HttpContext.AllErrors 屬性。 此範例會使用 AddError 方法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陣列。 然後，它會將陣列寫入包含的頁面，並使用 ClearError 方法來清除 屬性中的所有錯誤 Context 。

     void Page_Load(Object sender,EventArgs e) 
     {
        Response.Write("<h3>Page.Context Example:</h3>");

        // Add three custom exceptions.
        Context.AddError(new Exception(
            "<h3 style='color: red'>New Exception #1.</h3>"));
        Context.AddError(new Exception(
            "<h3 style='color: red'>New Exception #2.</h3>"));
        Context.AddError(new Exception(
            "<h3 style='color: red'>New Exception #3.</h3>"));

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

        foreach (Exception ex in errs)
        {
           Response.Write("<p style='text-align:center; ");
           Response.Write("font-weight:bold'>");
           Response.Write(Server.HtmlEncode(ex.ToString()) + "</p>"); 
        }

        // Clear the exceptions so ASP.NET won't handle them.
        Context.ClearError();
     }

     Sub Page_Load(Sender As Object, e As EventArgs ) 
     
        Response.Write("<h3>Page.Context Example:</h3>")
           
        ' Add three custom exceptions.
       Context.AddError(New Exception( _
           "<h3 style=""color: red"">New Exception #1.</h3>"))
       Context.AddError(New Exception( _
           "<h3 style=""color: red"">New Exception #2.</h3>"))
       Context.AddError(New Exception( _
           "<h3 style=""color: red"">New Exception #3.</h3>"))

        ' Capture all the new Exceptions in an array.
        Dim errs() As Exception = Context.AllErrors
        Dim ex As Exception
        
        For Each ex In errs
           Response.Write("<p style='text-align:center; font-weight:bold'>")
           Response.Write(Server.HtmlEncode(ex.ToString()) + "</p>")
        Next

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

備註

此屬性提供頁面執行內容的程式設計存取，包括要求、回應、會話和應用程式的相關資訊。

另請參閱

• HttpContext