Page.Context Property

Reference

Definition

Namespace:: System.Web.UI

Assembly:: System.Web.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets the HttpContext object associated with the page.

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

Property Value

HttpContext

An HttpContext object that contains information associated with the current page.

Examples

The following code example uses the Context property to access the HttpContext.AddError and HttpContext.ClearError methods and the HttpContext.AllErrors property. The example creates three custom exceptions using the AddError method and uses the AllErrors property to load these exceptions to an array. 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

Remarks

This property provides programmatic access to the context the page runs in, including information about the request, response, session, and application.

Applies to

共用方式為