MVC4 @helper Auxiliary method

Razor provides a convenient syntax for extracting portions of the View page or part of the code into an independent helper method.

EG1: @foreach (var item in Model) {< label tr>< label Td> @item. name</label td>< label td> @item. Price</label td></tag Tr>} When we want to the item. Price when processing, for example, 0 o'clock, the page display free, you need to add a judgment EG2: @foreach (var item in Model) {< label tr>< label Td> @item. name</label td>< label td> @if (item. price==0) { @: Free }else{ @item. Price }  </label Td></label Tr>} But if there are multiple fields to do so, then we can use Razor's @helper to take this part of the logic out, into a separate method, and @helper syntax is to add a method declaration behind the @helper, can contain some parameters , eg: @helper showprice (int price) {if (price==0) {@: Free}else{@price}} and then just call Eg3: @foreach (var item in Model) {< label tr> < label Td> @item. name</label td>< label td> @ShowPrice (item. Price)</label td></tag Tr> the syntax for declaring @helper helper methods is very similar to declaring methods in C #, the only difference being that no callbacks are made, and the default is Web page output. If you want to use this @helper helper method for several different view pages, consider independently of the project root App_Code, the standalone file suffix must be cshtml, as follows: Add an App_Code folder and add--New item--" MVC4 Layout Page This item is named uihelper.cshtml (preferably another name) and you can then move the @helper intact into the file, and then change it to @uihelper.showprice when we call it again. Price) can

MVC4 @helper Auxiliary method