HttpContext.Current 属性

定义

为当前 HTTP 请求获取或设置 HttpContext 对象。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

属性值

当前 HTTP 请求的 HttpContext 实例。The HttpContext instance for the current HTTP request.

示例

下面的代码示例使用 Current 属性访问 HttpContext.AddErrorHttpContext.ClearError 方法以及 HttpContext.AllErrors 属性。The following code example uses the Current property to access the HttpContext.AddError and HttpContext.ClearError methods and the HttpContext.AllErrors property. 该示例使用 AddError 方法创建三个自定义异常,并使用 AllErrors 属性将这些异常加载到数组中。The example creates three custom exceptions using the AddError method and uses the AllErrors property to load these exceptions to an array. 然后,它将数组写入包含页,并使用 ClearError 方法来清除 Context 属性中的所有错误。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  
  

注解

此属性是 HttpContext 类的静态属性。This property is a static property of the HttpContext class. 属性存储应用于当前请求的 HttpContext 实例。The property stores the HttpContext instance that applies to the current request. 此实例的属性是 HttpContext 类的非静态属性。The properties of this instance are the non-static properties of the HttpContext class.

你还可以使用 Page.Context 属性访问当前 HTTP 请求的 HttpContext 对象。You can also use the Page.Context property to access the HttpContext object for the current HTTP request.

适用于

另请参阅