I would like a navigation that has 2 sets of navigation on the page. One "tab" styled navigation which will lead to pages that will show a side navigation with only the descendants of that current page listed. Right now my tabs lead to pages that show not only the current pages descendants, but the ancestors. Here is my current razor and a link to the page for refrence. http://edit-wwwprep.rose-hulman.edu/offices-and-services/global-programs/current-students.aspx
@inherits umbraco.MacroEngines.DynamicNodeContext
@{
var StartLevel = String.IsNullOrEmpty(Parameter.startLevel) ? 1 : int.Parse(Parameter.startLevel);
var FinishLevel = String.IsNullOrEmpty(Parameter.finishLevel) ? 3 : int.Parse(Parameter.finishLevel);
var page = @Model.AncestorOrSelf(StartLevel);
if(page != null)
{
@traverse(page, StartLevel, FinishLevel);
}
}
@helper traverse(dynamic page, int StartLevel, int FinishLevel)
{
<ul class="nodeList">
@foreach (var node in page.Children.Where("Visible"))
{
var itemName = node.HasValue("shortPageTitle") ? @node.shortPageTitle : node.HasValue("pageTitle") ? @node.pageTitle : @node.pageName;
var levelOne = node.IsAncestor(Model) ? "class=levelOne" : "";
var childActive = node.IsEqual(Model) ? "class=activeChild" : "";
var target = node.externalUrl ? "target=_blank" : "";
var link = node.HasValue("externalUrl") ? node.url : node.Url;
<li @childActive @levelOne ><a href="@link" @target>@itemName</a>
@if(node.Children.Where("Visible").Count() > 0 && node.IsAncestorOrSelf(Model) && node.Level <= FinishLevel)
{
@traverse(node, StartLevel, FinishLevel);
}
</li>
}
</ul>
}
Here is an image of what I need my razor to render. Just the current page and the decendants of that page. Problem is if I change the first foreach to @foreach (var node in page.DescendantsOrSelf().Where("Visible")) the page will not load and IIS will crash. What should I be doing?
Forgive me if I'm totally out here - but if you have this helper method that called each page Descendants OR SELF then wouldn't it get stuck in an infinite loop? Is that what you mean by IIS crashing?
Your sample code is a little involved for me to recreate but I think you're just looking for all pages from and including the current page between certain levels (so you can exclude your homepage and very low level subpages) - is that right?
If so you should just be able to use this - there is no need for recursion?! You'll need to change the start and finish levels to your parameters and modify the output (which is currently just the URLs) to match your formatted links and business rules but it should give you what you need...
Foreach with multiple conditions?
I would like a navigation that has 2 sets of navigation on the page. One "tab" styled navigation which will lead to pages that will show a side navigation with only the descendants of that current page listed. Right now my tabs lead to pages that show not only the current pages descendants, but the ancestors. Here is my current razor and a link to the page for refrence. http://edit-wwwprep.rose-hulman.edu/offices-and-services/global-programs/current-students.aspx
@inherits umbraco.MacroEngines.DynamicNodeContext @{ var StartLevel = String.IsNullOrEmpty(Parameter.startLevel) ? 1 : int.Parse(Parameter.startLevel); var FinishLevel = String.IsNullOrEmpty(Parameter.finishLevel) ? 3 : int.Parse(Parameter.finishLevel); var page = @Model.AncestorOrSelf(StartLevel); if(page != null) { @traverse(page, StartLevel, FinishLevel); } } @helper traverse(dynamic page, int StartLevel, int FinishLevel) { <ul class="nodeList"> @foreach (var node in page.Children.Where("Visible")) { var itemName = node.HasValue("shortPageTitle") ? @node.shortPageTitle : node.HasValue("pageTitle") ? @node.pageTitle : @node.pageName; var levelOne = node.IsAncestor(Model) ? "class=levelOne" : ""; var childActive = node.IsEqual(Model) ? "class=activeChild" : ""; var target = node.externalUrl ? "target=_blank" : ""; var link = node.HasValue("externalUrl") ? node.url : node.Url; <li @childActive @levelOne ><a href="@link" @target>@itemName</a> @if(node.Children.Where("Visible").Count() > 0 && node.IsAncestorOrSelf(Model) && node.Level <= FinishLevel) { @traverse(node, StartLevel, FinishLevel); } </li> } </ul> }Here is an image of what I need my razor to render. Just the current page and the decendants of that page. Problem is if I change the first foreach to
@foreach (var node in page.DescendantsOrSelf().Where("Visible")) the page will not load and IIS will crash. What should I be doing?
I've got it to work, but I would still like to know if it's possible to do multiple conditions on a foreach.
Forgive me if I'm totally out here - but if you have this helper method that called each page Descendants OR SELF then wouldn't it get stuck in an infinite loop? Is that what you mean by IIS crashing?
Yes, that correct. It is an infinite loop that crashes IIS.
So if you change:
@foreach (var node in page.DescendantsOrSelf().Where("Visible"))
to
@foreach (var node in page.Descendants().Where("Visible"))
it works?
I've tried this and it doesn't pull any nodes in.
Your sample code is a little involved for me to recreate but I think you're just looking for all pages from and including the current page between certain levels (so you can exclude your homepage and very low level subpages) - is that right?
If so you should just be able to use this - there is no need for recursion?! You'll need to change the start and finish levels to your parameters and modify the output (which is currently just the URLs) to match your formatted links and business rules but it should give you what you need...
@inherits Umbraco.Web.Mvc.UmbracoTemplatePage @{ int StartLevel = 1; int FinishLevel = 3; var page = CurrentPage.Descendants(); string conditionStr = "Visible && Level <= " + FinishLevel + " && Level >= " + StartLevel; foreach (var node in page.Where(conditionStr)){ @node.Url; } }I am using Webforms not Mvc.
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