Hello, We are trying to play with MVC5 samples and in Visual Studio 2019. The web application is working but the data is not loadind and it is just spinning with "Loading Demo". FYI, We have not changed anything in the sample.

Would be able to guide me in the right direction so we can maker sure whatever is missing in our dev environment is installed.

Problem:

I have a search funtionality that loads the folder structure and a second that loads the documents for a folder. Due to dependencies on other systems is the latter a giant performance hit if i have to loop over the folder in an eager loaded system. these same dependencies & preformance impact also block me from excecuting the first webservice on every expand. Documents are only available in leaf folders, as they are a specific type, but that's not relevant to the treeview.

Right now, we have implemented it so that we cache the folder structure, and on every expand we load the cached version & filter out what we needed. Due to cache size limitations, we have settled on a cache time of 30 minutes. We see now that users complain about  the treeview not working anymore when they have been called away, when they had lunch & when they had to work on other things for a while (i.e. when they didn't use the app for more than 30m.

I have managed to eager load the complete folder structure, but that required it to be fully expanded, while most folders should be collapsed. The contents of collapsed folders seems to be ignored. A folder that has been extended but recollapsed however, is kept in the treeview and will not be requested again. We could make a Javascript that would collapse everything, but that would give a nasty flicker on the view.

Question:

I would like to know if there is a way to eager load the collapsed folder structure while keeping lazy loading for the documents.

hallo,

i just wanna to disable the combobox when the chekcbox is checked and vice versa.

when i cheked, it disactivated, but when i check out (isChek == false) is not enable it. so it remain disabled.

any idea?

I have a RadGridView with IsFilteringAllowed="True" and CanUserSortColumns="True" properties.  This give my column headers sort and filter functions, and shows the filter icon on each. The columns are defined as GridViewDataColumns.  

I am trying to find a way to remove, or at least hide, the filter icon from just one of my column headers.  Is there a way to do that?

Here is the relevant code:

<telerik:RadGridView Grid.Row="0" ItemsSource="{Binding StationState.DewaxStatuses}"
                                     Style="{StaticResource RadGridViewDefault}"
                                     IsFilteringAllowed="True" CanUserSortColumns="True"

<telerik:GridViewDataColumn DataMemberBinding="{Binding WorkItemsCount}" Header="Molds" 
                                                    Style="{StaticResource GridViewFooterDataColumn}" 
                                                    TextAlignment="Right" ShowFilterButton="False">

I have tried moving the IsFilteringAllowed property into the individual data columns but it isn't valid in those.  I also tried adding FilterMemberPath to the one column, which left the icon visible and the dropdown available but removed the data from the menu.  That is, you could view the menu but there is nothing to select.

I also looked at ShowFilterButton, but that only removes the button inside the menu, not the icon.

I hope this is enough information, but I can supply more if needed.

Thanks,

Todd

I'm updating an application (based on version v2021.2.511) porting bits of code to a new application based on v2022.2.510). I'm trying to get a multi-select drop-down list with checkboxes working.  The requirment is for the check boxes to be checked if an item in the list is selected, and unchecked if it is unselected.

The following styles were added:-

<style type="text/css">

    @*.EditButton {
        display:@ViewBag.EditButton;
    }*@

    .nopadding {
   padding-left: 0 !important;
    padding-right: 0 !important;

}

 .k-multiselect:after {
         content: "\25BC";
         position: absolute;
         top: 30%;
         right: 10px;
         font-size: 10px;
     }

    .k-multiselect-wrap.k-floatwrap li.k-button .k-icon.k-i-close
  {
    display: none !important;
  }

}
</style>

<style scoped>

    .k-widget.k-multiselect {
        width: 300px;
        vertical-align: middle;
        display: inline-block;
    }
</style>

The multiselect definition is:-

 @(Html.Kendo().MultiSelect()
                                .Name("msSpecialty")
                                .DataValueField("Code")
                                .DataTextField("Description")
                                    .Placeholder("All specialties...")
                                    .ItemTemplate("<input type='checkbox' /> #=data.Description#")
                                    .AutoClose(false)
                                    .ClearButton(false)
                                    .TagMode(TagMode.Multiple)
                                //.TagTemplate(" <span>#= Description #</span>")

                                .Events(e => e.Close("onSpecListChange").DataBound("specListDataBound").Change("chkFix"))
                                .DataSource(src => src.Read(rd => rd.Action("getOpenClockSpecDDL", "Validation")).ServerFiltering(false))
                                    .HtmlAttributes(new { style = "width:300px;" })
                        )

And the javascript:-

 var currentSpec = '-X-';

 function onSpecListChange() {
        var items = this.ul.find("li");
        checkInputs(items);
        //check if list has changed since last close, if so, fire change event (Avoids unnescessary requeries)

        var multiselect = $("#msSpecialty").data("kendoMultiSelect");
        var Svalue = multiselect.value().sort();

        var SpecString = "";

        if (Svalue != null & Svalue != '') {


            for (i = 0; i < Svalue.length; i++) {
                SpecString = SpecString + Svalue[i] + "|";
            }

        }
        else {
            SpecString = "-X-";
        }



        if (currentSpec != SpecString) {
            onChange();
        }




    }

    function checkInputs(elements) {
        elements.each(function () {
            var element = $(this);
            var input = element.children("input");

            input.prop("checked", element.hasClass("k-state-selected"));
        });
    }

    function specListDataBound() {

        var items = this.ul.find("li");
        setTimeout(function () {
            checkInputs(items);
        });

    }

    function chkFix() {
        var items = this.ul.find("li");
        setTimeout(function () {
            checkInputs(items);
        });
    }

 function onChange()
    {

    }

I assume the styles have changed between the versions, because this code is not working. The checkboxes aren't being checked on selection, the list doesn't close when clicked away from, and the closed multiselect isn't displaying properly.  How can I get it working as it was please?

Hi,

I use the latest Kendo UI MVC with Visual Studio 2019. I would to know if is possible to change the menu orientation with a button click and not with a combobox option ?

Thank you.

Ignacio

hi, 

I'm maintaing a ASP.NET MVC 5.2.7 webapp with kendo 2021.2.616,  the question is: will this version of kendo work when the webapp is migrated to .Net 6? otherwise is there a kendo roadmap for such kind of migration?

regards and happy holidays

I have created an ASP.NET MVC application and I am using Telerik Grid control in it. An issue is reported by QA that if the page call via postman is issued with incorrect values for page, size or filter parameters e.g., filter=aaaaaaaaaaaa, it results in crashing the page. Is there anyway to handle the incorrect values for these three grid attributes and instead of error dump on webpage, default value gets assigned to erroneous parameter.

Version Information
.NET Runtime: 4.7
Telerik Web MVC: 2013.2.611.340