HttpContext.Current 属性

定义

命名空间:

System.Web

程序集:

System.Web.dll

为当前 HTTP 请求获取或设置 HttpContext 对象。

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

HttpContext

当前 HTTP 请求的 HttpContext 实例。

示例

下面的代码示例使用 Current 属性访问 HttpContext.AddError 和 HttpContext.ClearError 方法和 HttpContext.AllErrors 属性。 此示例使用 AddError 该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。 然后，它将数组写入包含页，并使用 ClearError 该方法清除属性中的所有错误 Context 。

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

此属性是类的 HttpContext 静态属性。 该属性存储 HttpContext 适用于当前请求的实例。 此实例的属性是类的非 HttpContext 静态属性。

还可以使用 Page.Context 该属性访问 HttpContext 当前 HTTP 请求的对象。

另请参阅

• Response
• Request