Page.Context Page.Context Page.Context Page.Context Property

定義

取得與網頁關聯的 HttpContext 物件。Gets the HttpContext object associated with the page.

protected public:
 virtual property System::Web::HttpContext ^ Context { System::Web::HttpContext ^ get(); };
protected internal override System.Web.HttpContext Context { get; }
member this.Context : System.Web.HttpContext
Protected Friend Overrides ReadOnly Property Context As HttpContext

屬性值

HttpContext 物件,包含與目前網頁相關聯的資訊。An HttpContext object that contains information associated with the current page.

範例

下列程式碼範例會使用Context屬性來HttpContext.AddError存取和HttpContext.ClearError方法,以及HttpContext.AllErrors屬性。The following code example uses the Context 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AllErrors使用屬性將這些例外狀況載入陣列。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ClearError使用方法來清除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.

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

這個屬性可讓您以程式設計方式存取頁面執行所在的內容,包括要求、回應、會話和應用程式的相關資訊。This property provides programmatic access to the context the page runs in, including information about the request, response, session, and application.

適用於

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