DotNetNuke自定义应用程序架构(DotNetNuke Custom Application Architecture)

 可以通过Master属性访问Page的Master ，因此要检查正在使用的特定Master ，您可以执行类似的操作 
 
if (this.Master is Master1Type)
 
 if/else语法也是可能的，如下所示： 
 
<% if (this.Master is Master1Type) { %>
    <%#Eval("Content2").ToString%>
<% }
else { %>
    <%#Eval("Content3").ToString%>
<% } %>
 
 然而，这对我来说看起来很脏，并且在页面标记内有条件似的这种情况并不常见。 我建议在代码后面定义一个函数来处理masterpages逻辑，并从数据项输出必要的值： 
 
<%# GetContent(Container.DataItem) %>

protected string GetContent(object dataItem)
{
    if (this.Master is Master1Type)
    {
        return Eval("Content2");
    }
    // etc
}

Page's masterpage can be accessed via Master property, so to check for a specific masterpage in use you can do something like
 
if (this.Master is Master1Type)
 
The if/else syntax is also possible, and will look like this:
 
<% if (this.Master is Master1Type) { %>
    <%#Eval("Content2").ToString%>
<% }
else { %>
    <%#Eval("Content3").ToString%>
<% } %>
 
However that looks dirty to me, and having conditionals likes this inside the page markup is not a common practice. I would suggest defining a function in code behind to deal with masterpages logic, and output necessary value from the data item:
 
<%# GetContent(Container.DataItem) %>

protected string GetContent(object dataItem)
{
    if (this.Master is Master1Type)
    {
        return Eval("Content2");
    }
    // etc
}