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.NET/ASP.NET/C#/VB.NET PDF Document SDKSo let s suppose you have a page that is mostly static, with just a small bit of markup that needs to be dynamically generated with each request. That is, all of the markup for this page could be cached using the output caching feature, but a little remaining bit of the page needs to be dynamically generated with each incoming request. Post-cache substitution accommodates this situation by allowing you to cache the entire page, but leave a certain part left out for regeneration with each incoming request. The part of the page that shouldn t be cached is marked with a Substitution element. The content for this element is returned as a string from a static method you add to the codebehind of your page. Let s take a look at a simple example. The page shown in Figure 4-10 displays the time that the code for the page was last executed on the left and the last time it was requested on the right. barcode excel 2007 add in, free barcode font excel 2007, barcode font excel mac, barcode generator excel 2016, barcode add in for excel free, how to install barcode font in excel 2010, barcode activex control for excel free download, how to install barcode font in excel 2007, how to create barcode in microsoft excel 2007, barcode generator excel 2010 free,Refetching of rows is defined as reobtaining the rows that correspond to n rows in a result set, starting with the current row, where n is the fetch size of the result set. As of 10g Release 1 (including 9i releases), you can refetch rows for the following types of result sets: Scroll-sensitive/read-only Scroll-sensitive/updatable Scroll-insensitive/updatable To refetch the rows, you need to move to a valid row (not on a blank row created to perform an insert operation) and then invoke the refreshRow() method on the result set: void refreshRow() throws SQLException; Please note that you can only see any updates done on the n rows being refreshed. You won t see any new inserts or deletes that would be visible should you reissue the current You can find the meaning of these attributes in the MSDN documentation referenced by the FxCop warning messages We adjusted several names; APoint , n, l, and f became RadialPoint, count, factor, and transform, respectively We used a return type of seq<RadialPoint> instead of RadialPoint list by changing a list construction using [ .. ] to a sequence construction using seq { .. } An alternative option would be to use an explicit upcast ([ .. ] :> seq<_>) We used the NET delegate type SystemConverter instead of an F# function type After applying these, the last remaining FxCop warning is simply telling us that namespaces with two to three types are not recommended The last two previous points are not essential, but, as mentioned, delegate types and sequence types tend to be easier for C# programmers to use than F# function and list types (F# function types are not compiled to . Note that we need to give some quota on a tablespace for the schema db_app_data to be able to create tables and store some data in them. Next, we grant the privileges to connect to the database (the create session privilege): create table, and create and drop public synonym to db_app_data. Here s the markup that generates this page: <%@ Page CodeFile="SimpleSub.aspx.cs" Inherits="SimpleSub" %> <%@ outputcache duration="15" varybyparam="none" %> <html> <head runat="server"> <title>Simple Substitution</title> </head> <body> <form id="form1" runat="server"> <table border=1> <tr> <td colspan=2><h1>Header</h1></td> </tr> <tr> <td width=30%> <h3>Left Nav</h3> This page executed at: <asp:Label runat=server ID=lblRendered /> </td> <td> <h4>Main content area</h4> The current time is: <asp:Substitution runat=server ID=subTimestamp MethodName='GetStamp' /> </td> </tr> </table> </form> </body> </html> Because of the OutputCache directive at the top of the page, the markup generated by this page will be cached for 15 seconds at a time. This means when a request comes in for this page, the code will run only once, and thereafter the same markup will be cached and returned for 15 seconds, during which time the page will not be executed again. For the markup where the Substitution element is declared, however, the Framework will call the static method named by the MethodName attribute in the control declaration. The name of this method is up to you. There must be a method with this name in your code-behind, it must be declared as accepting an instance of HttpContext as an argument, and it must return a string. Here s the code behind for this sample page: public partial class SimpleSub : System.Web.UI.Page { public static string GetStamp(HttpContext context) { return DateTime.Now.ToLongTimeString(); } protected void Page_Load(object sender, EventArgs e) NET delegate types, partly for performance reasons) Note you can use FxCop exemptions to opt out of any of the FxCop rules, either by adding an exemption entry to FxCop itself or by attaching attributes to your source code.. admin@ORA10G> grant create session, 2 create table, 3 create public synonym, 4 drop public synonym 5 to db_app_data; Grant succeeded. We now create the db_data_access_layer schema. This user does not need to create any tables, but it needs to connect to the database, create procedures, and create and drop synonyms, so we grant it the corresponding privileges: admin@ORA10G> create user db_data_access_layer identified by db_data_access_layer; User created. admin@ORA10G> grant create session, 2 create public synonym, 3 drop public synonym, 4 create procedure 5 to db_data_access_layer; Grant succeeded.
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