Jump to the top of a web page


While I am surfing the web for research, fun or even work, I keep an eye out for cool looking UI elements. I recently found one that is so simple, yet so useful.

I was on a site, like most sites these days, which had an exceedingly long home page. I am so accustomed to these long pages that I just scroll to the top without thinking about it. This web site had a non-assuming icon at the lower right in the footer. There was no label or tooltip to explain what it was for. They might want to change that part, but it is fun to find these hidden treats.

When you clicked the icon, it jumped the page back up to the top of the page, nice and smooth. I thought it was cool. I kept going to the bottom and clicking on it.

 

How did they do it?

When I looked at the code, I was surprised at how simple it was: 

    onclick=`window.scrollTo({top:0, behavior:`smooth`})`

That was it! My next thought was, can I do this in Blazor?

 

Blazor Implementation

Good news, sort of, it works the same way in Blazor. But you must use JavaScript. I am not a major fan of mixing of JavaScript in my Blazor applications, but this was different. It was in line, not script file, no script tags in my layout.chtml file. The best part is that it just works.

  

Summary

I like this technique of jumping back to the top of the page. I like it so much; I added it to my blog.

 


Note: Why the airplane icon? I was a member of the U.S. Air Force, and it just says “Fly to the Top”

Comments

Post a Comment

Popular posts from this blog

Yes, Blazor Server can scale!

Image
From the very beginning of the release of Blazor Server naysayers have incorrectly stated that Blazor Server can not scale.  They usually state that the limit is 5,000 concurrent users. There are several misconceptions and wrong assumptions about their statement.  Let's break it down and get a better understanding of Blazor server-side scaling. What is the "limit" for users When Microsoft talks about the need to scale an application, what they are saying is that when a normal response for any concurrent user is taking longer than 200 ms, the system is not performant and needs to scale. We will accept that definition: If any normal user response is taking longer than 200 ms, the system needs to scale for concurrent users. By a normal response, we are referring to a page get, a post, etc.  Large database access requests would not be included in this measurement. What is scaling There are 2 common ways to scale, scale, out horizontally, and scale-up, up vertically. In our di...
Read more

Blazor - Cool Blur Loading Page

Image
  I was working on a project and wanted an original way of showing the user the application was loading besides using the normal "Loading...." text.  I came across a website page and thought I could refactor that into what I was looking for. When my application starts, it displays a full-screen image with a count down while the page loads.  As a special effect, I want to unblur the image the closer it gets to the applicaiton finishing loading.  Once the teh count down is done, we pause for 1 sec, for effect, then proceed to the application.  I think it turned out pretty cool.  See the demo here . I used the server side Blazor project template in my example, but the code should work on any Blazor template. Template changes 1. Rename the original Index.razor page to "home".  Besure to change the routing at the top of the page as well.      @page "/home" 2. Create a new Index.razor page     a. Add routing      ...
Read more

Blazor new and improved Search Box

 Back in March, I posted a new Blazor data grid with a search box ( see post ).  Since then I have found a new and improved search box that I wanted to implement.  The search part is implemented the same.  What I added was the ability for the user to narrow down the search by selecting which field they wanted to search on.  This will help the user find what they are looking for and in a large collection, the search will end up being faster. The goal of making the change was to make the search box a new component and have it handle the UI functionality part. Prep Work Here is the prep work I did before adding the search box: Started with the source code from the post listed above. Upgraded the project to .Net 5 Upgraded the Nuget packages that were out of date. Ensured every build and run. Change to a Component I wanted to create a component for the search box so I could use it in other applications.   1. Create a Folder under UIControls called "SearchB...
Read more