filtering a list based on user input

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Kyle Goulding 30 posts 192 karma points

Oct 13, 2016 @ 15:09
0

Filtering a list Based on User Input
Hi,

I am wanting to filter a list of Courses based on user input.

So initially I want the list to show all of the courses, then if a user clicks a button I want to pass the value to a variable which is being used in the where clause.

Below is the code which I have got at the moment, obviously I would add in the if statements depending on which button/option has been selected by the user, but if I am able to assign a user input to the variable I am sure I will be able to fill in the rest.

@{ var userInput = "Course Category A"; var course = CurrentPage.Site().FirstChild("coursesFolder").Children("course").Where("courseCategory == @0", @userInput).OrderBy("courseDate desc"); }
- @item.Name @item.courseDate
Does anyone know how I would be able to achieve this? Or do I need Umbraco forms to to this?

Thanks in advance
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Nik 1614 posts 7260 karma points MVP 7x c-trib

Oct 13, 2016 @ 15:48

0

Hi Kyle,

This is completely achievable without Umbraco Forms.

There are various options available to you, the first is to use some javascript to re-call your current page with a query string attached. You could then edit your view to process the query string.

Alternatively, you could use a surface controller to receive the input and then return the updated list. This could be called via ajax, or it could be a complete page reload.

Nik

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Kyle Goulding 30 posts 192 karma points

Oct 14, 2016 @ 11:59

0

Hi Nik,

Thanks for your advice. Do you have any example code similar to what I am trying to achieve with the query strings or know of any tutorials which may cover this?

Thanks for your help.

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Kyle Goulding 30 posts 192 karma points

Oct 14, 2016 @ 12:38

Hi Nik,

I think I have figured it out...

<h1>Courses</h1>

<form action="" method="GET">
    <div class="input-group">

            <span class="input-group-btn" style="">
                <button class="btn btn-hee" type="submit" name="category" value="Category A">Category A</button>
                <button class="btn btn-hee" type="submit" name="category" value="Category B">Category B</button>
                <button class="btn btn-hee" type="submit" name="category" value="">All</button>
            </span>
    </div>
</form> 

@{
    @*IF String is not Null*@
    if (!string.IsNullOrEmpty(Request.QueryString["category"]))
    {
        var category = Request.QueryString["category"];
        var course = CurrentPage.Site().FirstChild("coursesFolder").Children("course").Where("courseCategory == @0", @category).OrderBy("courseDate desc");

        <ul>
        @foreach(var item in course)
        {
            <li>
                <a href="@item.Url">@item.Name</a>
                @item.courseDate
            </li>
        }
        </ul>
    }
    else if(string.IsNullOrEmpty(Request.QueryString["category"]))
    {
        var course = CurrentPage.Site().FirstChild("coursesFolder").Children("course").Where("Visible");

        <ul>
        @foreach(var item in course)
        {
            <li>
                <a href="@item.Url">@item.Name</a>
                @item.courseDate
            </li>
        }
        </ul>

    }

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