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Cacading example
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Daniel
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Daniel asked on 14 Dec 2012, 08:04 AM
Hello again,
i have the kendo UI for MVC Q3 2012,but inside there is no example folder  so i can view the full example for the cascading.
I tried to implement the scenario from the demo,the online example ,but for the moment,the second dropdownlist is not activating when i choose a category.
the cshtml look like this:
<p>
    <label for="categories">Categories:</label>
    @(Html.Kendo().DropDownList()
          .Name("categ")
          .OptionLabel("Select category...")
          .DataTextField("CategoryName")
          .DataValueField("CategoryID")
          .DataSource(source => {
              source.Read(read =>
              {
                  read.Action("GetCascadeCategories", "Controls");
              });
          })
        
    )
</p>
<p>
    <label for="products">Products:</label>
    @(Html.Kendo().DropDownList()
          .Name("produc")
          .OptionLabel("Select product...")
          .DataTextField("ProductName")
          .DataValueField("ProductID")
          .DataSource(source =>
          {
              source.Read(read =>
              {
                  read.Action("GetCascadeProducts", "Controls")
                      .Data("filterProducts");
              }).ServerFiltering(true);
          })
          
          .Enable(false)
          .AutoBind(false)
          .CascadeFrom("categ")
          
       
    )
<script type="text/javascript">
        function filterProducts() {
            
            return {
                categories: $("#categ").val()
            };
        }
        
    </script>

the Code in controller look like this:
public JsonResult GetCascadeCategories()
        {
            

            return Json(_categoryRepository.GetAll().Select(c => new { CategoryId = c.CategoryID, CategoryName = c.CategoryName }), JsonRequestBehavior.AllowGet);
        }

        public JsonResult GetCascadeProducts(string categories)
        {
           
            var products = _productRepository.GetAll();

            if (!string.IsNullOrEmpty(categories))
            {
                products = products.Where(p => p.Category.CategoryName == categories);
            }

            return Json(products.Select(p => new { ProductID = p.ProductID, ProductName = p.ProductName }), JsonRequestBehavior.AllowGet);
        }

Or,can you send me a functional example taking data from a real database like Northwind.

Thanks in advance.

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Georgi Krustev
Telerik team
answered on 14 Dec 2012, 03:45 PM
Hello Daniel,

 
I believe that the Examples folder is placed inside of the "%Installation Folder%\Telerik\Kendo UI for ASP.NET MVC Q3 2012\wrappers\aspnetmvc\Examples". For your convenience I have attahced the examples as an archive to this message.

All the best,
Georgi Krustev
the Telerik team
Join us on our journey to create the world's most complete HTML 5 UI Framework - download Kendo UI now!
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Daniel
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answered on 17 Dec 2012, 07:34 AM
I checked again the instalation folder,but i didn't find it.Do you know why that folder \Examples is not present in my instalation folder?any possible reason?
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Georgi Krustev
Telerik team
answered on 17 Dec 2012, 09:36 AM
Hello again Daniel,

 
As I pointed they should be installed in the "\wrappers\aspnetmvc\" folder. There should be no reason why they are not present in the aforementioned folder. If you cannot find them in the correct folder, then I will suggest you re-install the wrappers. Let me know if the problem still persists.

All the best,
Georgi Krustev
the Telerik team
Join us on our journey to create the world's most complete HTML 5 UI Framework - download Kendo UI now!
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Daniel
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answered on 17 Dec 2012, 09:53 AM
I installed the product using the Telerik Control Panel,and in my \wrappers\aspnetmvc\ folder there are only 3 subfolders:\Binaries,\Editor Templates and \Legacy Templates.And with this i can only turn on or off the feature.can i unistall by turning off? or do i have to uninstall manually from Control Panel\Programs and features ?

Anyway the examples that you gave me,is what i want it,and i found my problem regarding cascading,also because is a complete example project,it will help me check my other problems from the grid that i posted.

Thank you for your feedback with the examples.

P.S:for any member who read this, my problem i think was a case-sensitive thing in the View.the controller return an anonymous type with a pair of {CategoryId,CategoryName},but in the view was  .DataValueField("CategoryID") and the action didn't even execute.after correcting the AnonymousType to be just like in the view {CategoryID=p.CategoryID,...} it's ok.
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Georgi Krustev
Telerik team
answered on 18 Dec 2012, 09:37 AM
Hello Daniel,

 
The Telerik Control Panel allows to turn on/off features. The Demos installation is turned off by default for faster installation. I will suggest you open the Telerik Control Panel, open the "Turn Features On/Off" and 
check whether the installation of the demos is turned on.

Regards,
Georgi Krustev
the Telerik team
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Daniel
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answered on 18 Dec 2012, 10:06 AM
Now,everything is ok.indeed the Local Demos was not checked.
Many thanks
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Georgi Krustev
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Daniel
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