c# - ASP.NET call a controller method from the master page? -

in asp.net mvc2 how call controller method master page? example wanted include overview data in master:

+--------------------------------------+ | logo                      welcome xyz| +--------------------------------------+ | total sales month $999          | +--------------------------------------+ | home | sales | import | export (menu)| +--------------------------------------+ 

and have inside sales controller method:

public actionresult totalsalesthismonth() {     var totalsalesmodel = salesservice.gettotalsalesthismonth()     return view(totalsalesmodel); } 

how can call view inside master displayed on every page?

you use html.action or html.renderaction helpers. example put following somewhere on master page:

<%= html.action("totalsalesthismonth", "somecontroller") %> 

this execute controller action, render view , insert generated html @ specified location in master page. restrict action being used child action decorating [childactiononly] attribute:

[childactiononly] public actionresult totalsalesthismonth() {     var totalsalesmodel = salesservice.gettotalsalesthismonth()     return view(totalsalesmodel); } 

and if inside controller action wanted test whether called normal action or child action this:

public actionresult totalsalesthismonth() {     var totalsalesmodel = salesservice.gettotalsalesthismonth()     if (controllercontext.ischildaction)     {         return view("foo", totalsalesmodel);     }     return view("bar", totalsalesmodel); }