Is this a bug in WebMatrix PageData?

Question

I think I may have found a bug in WebMatrix\'s PageData, but I am not sure. It concerns how to pass data from a partial page back to a calling page.

In the WebMatrix

Answer 1

You layout page is overwriting the value passed to it form the partial page. To pass data from the partial page to the layout page use a different indexer.

Partial page

@{
  PageData["test"] = "value form partial";
}

Layout page

@{
  PageData["anothertest"] = "value from layout";
}
test value = @PageData["test"]
anothertest value = @PageData["anothertest"]

If you want to have a default value in the layout page that is displayed if your partial page doesn't set the value then you can do the following

Layout page

@{
  var test = PageData["test"] ?? "Layout default value";
}
test value = @test

Partial page

@{
  PageData["test"] = "partial page value";
}

If your partial page does not set PageData["test"] then "Layout default value" will be used