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asp.netnavigationbootstrap-4breadcrumbssitemappath

Customizing SiteMapPath like Bootstrap Breadcrumb


In a Asp.Net website, we can simply add the breadcrumb by using the SiteMap and SiteMapPath. But the SiteMapPath adds a very simple breadcrumb on the website.

I want to customize the SiteMapPath on my website to contain icons from FontAwesome for each node present in the SiteMapPath. Also I want to design my SiteMapPath similar to the snippet that I have added below.

.breadcrumb-SiteMaster {
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 12px;
}

.breadcrumbSM {
    list-style: none;
    display: inline-block;
}

.breadcrumbSM .icon {
    font-size: 14px;
}

.breadcrumbSM li {
    float: left;
}

.breadcrumbSM li a {
    color: #FFF;
    display: block;
    background: #3498db;
    text-decoration: none;
    position: relative;
    height: 40px;
    line-height: 40px;
    padding: 0 10px 0 5px;
    text-align: center;
    margin-right: 23px;
}

.breadcrumbSM li:nth-child(even) a {
    background-color: #2980b9;
}

.breadcrumbSM li:nth-child(even) a:before {
    border-color: #2980b9;
    border-left-color: transparent;
}

.breadcrumbSM li:nth-child(even) a:after {
    border-left-color: #2980b9;
}

.breadcrumbSM li:first-child a {
    padding-left: 15px;
    -moz-border-radius: 4px 0 0 4px;
    -webkit-border-radius: 4px;
    border-radius: 4px 0 0 4px;
}

.breadcrumbSM li:first-child a:before {
    border: none;
}

.breadcrumbSM li:last-child a {
    padding-right: 15px;
    -moz-border-radius: 0 4px 4px 0;
    -webkit-border-radius: 0;
    border-radius: 0 4px 4px 0;
}

.breadcrumbSM li:last-child a:after {
    border: none;
}

.breadcrumbSM li a:before, .breadcrumbSM li a:after {
    content: "";
    position: absolute;
    top: 0;
    border: 0 solid #3498db;
    border-width: 20px 10px;
    width: 0;
    height: 0;
}

.breadcrumbSM li a:before {
    left: -20px;
    border-left-color: transparent;
}

.breadcrumbSM li a:after {
    left: 100%;
    border-color: transparent;
    border-left-color: #3498db;
}

.breadcrumbSM li a:hover {
    background-color: #1abc9c;
}

.breadcrumbSM li a:hover:before {
    border-color: #1abc9c;
    border-left-color: transparent;
}

.breadcrumbSM li a:hover:after {
    border-left-color: #1abc9c;
}

.breadcrumbSM li a:active {
    background-color: #16a085;
}

.breadcrumbSM li a:active:before {
    border-color: #16a085;
    border-left-color: transparent;
}

.breadcrumbSM li a:active:after {
    border-left-color: #16a085;
}
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.css">
<div class="breadcrumb-SiteMaster">
  <ul class="breadcrumbSM">
    <li><a href="#"><span><i class="fa fa-home"></i></span></a></li>
    <li><a href="#"><span><i class="fa fa-file"></i></span> Projects</a></li>
    <li><a href="#"><span><i class="fa fa-angle-double-right"></i></span> Breadcrumb</a></li>
    <li><a href="#"><span><i class="fa fa-rocket"></i></span> Getting started</a></li>
    <li><a href="#"><span><i class="fa fa-arrow-down"></i></span> Download</a></li>
  </ul>
</div>

I tried using the CSS in the SiteMapPath but it didn't worked.


Solution

  • Found the answer to the problem. Did some searching on google and found out that by using the ControlAdapter and BrowserFile I can edit the SiteMapPath to be similar to the Bootstrap Breadcrumb.

    First you need to add a class named SiteMapPathControlAdapter which will inherit the WebControlAdapter and then in there you can edit the layout for the SiteMapPath

    public class SiteMapPathControlAdapter : WebControlAdapter
    {
        public virtual string LinkCssClass
        { get; set; }
        protected override void RenderBeginTag(HtmlTextWriter writer)
        {
            writer.WriteLine();
            writer.WriteBeginTag("div");
            writer.WriteAttribute("class", ((System.Web.UI.WebControls.SiteMapPath)(Control)).CssClass);
            writer.Write(HtmlTextWriter.TagRightChar);
            writer.WriteBeginTag("ul");
            writer.WriteAttribute("class", "breadcrumbSM");
            writer.Write(HtmlTextWriter.TagRightChar);
        }
        protected override void RenderEndTag(HtmlTextWriter writer)
        {
            writer.WriteEndTag("ul");
            writer.WriteEndTag("div");
            writer.WriteLine();
        }
        protected override void RenderContents(HtmlTextWriter writer)
        {
            writer.Indent++;
            SiteMapPath item = (SiteMapPath)Control;
            SiteMapProvider Provider = ((System.Web.UI.WebControls.SiteMapPath)(Control)).Provider;
            SiteMapNodeCollection collection = new SiteMapNodeCollection();
            SiteMapNode node = Provider.CurrentNode;
            if (node != null)
            {
    
                collection.Add(node);
                while (node != Provider.CurrentNode.RootNode)
                {
                    node = node.ParentNode;
                    collection.Add(node);
                }
    
            }
            BuildItems(collection, true, writer);
            writer.Indent--;
            writer.WriteLine();
        }
        private void BuildItems(SiteMapNodeCollection items, bool isRoot, HtmlTextWriter writer)
        {
            if (items.Count > 0)
            {
                writer.WriteLine();
    
                writer.Indent++;
                for (int i = items.Count - 1; i > -1; i--)
                {
                    BuildItem(items[i], writer);
                }
                writer.Indent--;
                writer.WriteLine();
            }
        }
        private void BuildItem(SiteMapNode item, HtmlTextWriter writer)
        {
            if ((item != null) && (writer != null))
            {
                if (item.Url.Length > 0)
                {
                    writer.WriteLine();
                    writer.WriteBeginTag("li");
                    writer.Write(HtmlTextWriter.TagRightChar);
    
                    writer.WriteBeginTag("a");
                    writer.WriteAttribute("href", Page.ResolveUrl(item.Url));
                    writer.Write(HtmlTextWriter.TagRightChar);
    
                    writer.WriteBeginTag("span");
                    writer.Write(HtmlTextWriter.TagRightChar);
    
                    writer.WriteBeginTag("i");
                    writer.WriteAttribute("class", string.Format("fa fa-{0}", item.Description));
                    writer.Write(HtmlTextWriter.TagRightChar);
                    writer.WriteEndTag("i");
    
                    writer.WriteEndTag("span");
    
                    if (item.Title == "Home")
                    {
                        writer.Write("");
                    }
                    else
                    {
                        writer.Write(string.Format(" {0}", item.Title));
    
                        writer.WriteEndTag("a");
    
                        writer.WriteEndTag("li");
    
                        writer.WriteLine();
                    }
                }
            }
        }
    }
    

    }

    After this add a BrowserFile to your project and link it to the ControlAdapter class that was added recently in your project by adding the following lines in the BrowserFile.

    <browser refID="Default">
        <controlAdapters>
           <adapter controlType="System.Web.UI.WebControls.SiteMapPath" adapterType="SiteMapPathControlAdapter" />
        </controlAdapters>
    </browser>
    

    Then all you need to do is add the SiteMapPath in the Site.Master to be available on all the pages and set the CssClass to breadcrumb-SiteMaster and you are good to go.