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UI for ASP.NET MVC Forum
3 answers
1.5K+ views

Yo, so im using the trail version of Telerik and doing some R&D to check if the telerik controls would suit our dev environment.

 

I have a mvc grid on a view, the grid has an additional action button column using the ClientTemplate(), in this column i render image button which has javascript function linked to the click event which also passes the Grid Id as a parameter. and depending on an active status bound to the grid this also decides what image buttons are displayed.

@(Html.Kendo().Grid<Presentation.AccountGridViewModel>()
                .Name("Grid")
                .Columns(columns =>
                {
                    columns.Select().Width(31);
                    columns.Bound(o => o.Id).Groupable(false).Visible(false);
                    columns.Bound(o => o.Name);
                    columns.Bound(o => o.LastUpdated);
                    columns.Bound(o => o.Active);
                    columns.Bound(o => o.Id).ClientTemplate("<img class='grid-button gb-update' src='../Images/icons/update.png' onclick='update(#=Id#)' title='Update'/>" +
                                                "#if(Active){#<img class='grid-button gb-delete' src='../Images/icons/delete.png' onclick='deactivate(#=Id#)'  title='Delete'/>#}#")
                                            .Width(100)
                                            .Title("Actions")
                                            .Filterable(false);
 
                })
                .Pageable(pager => pager.AlwaysVisible(true).ButtonCount(5).PageSizes(new List<object> { 5, 10, 20, 100 }))
                .Sortable()
                .Filterable()
                .Scrollable()
                .PersistSelection()
                .Events(ev => ev.Change("onChange"))
                .ClientDetailTemplateId("template")
                .HtmlAttributes(new { style = "height: 500px;margin-top:40px;" })
                .DataSource(d => d
                .Ajax()
                .Model(a => a.Id(p => p.Id))
                .Read(read => read.Action("CustomAjaxBinding_Read", "Setting"))
                .PageSize(20)
                ))

I have also instantiated a very basic window on the page and the rest i control via javascript.

@(Html.Kendo().Window()
                   .Name("window")
                   .Width(650)
                   .Height(500)
                   .Visible(false)
                   .Actions(actions => actions.Maximize().Close())
                   .Draggable())

 

When the grid button is clicked the javascript function i have opens the window with out any issue,sets the title and centers the window. the problem i am having is how do i dynamically render a MVC partial view inside of the window. loading static content is no issue. is there a javascript equivalent to LoadContentFrom() for the MVC control?

The request should pass the Id parameter from the javascript function to a MVC PartialViewResult action and render the partial view within the Telerik window.

function update(Id) {
    $("#window").data("kendoWindow")
        .center()
        .title('Update Account')
        .content("your current ID is : "+ Id)
        // .LoadContentFrom("Test", "Setting")
        .open();
}

 

The end goal here is to display a form within the window that will allow me to update the record and close the window once the save button is clicked and the grid will also be refreshed to display the updated values.

Thanks in advance

 

Ivan Danchev
Telerik team
 answered on 30 Oct 2018
5 answers
888 views

Hi, I have been trying to change the label steps of my category axis but I cannot find a way in the API to do this except for setting the steps to a fixed number .Labels(label => label.Step(12)).

Is there some built in way to do this or should I create a javascript function that returns the steps and then try to access that inside the razor expression? 

Stamo Gochev
Telerik team
 answered on 30 Oct 2018
2 answers
173 views

Hi,

I have a grid where I want a link in some of the cells in one column. The logic for deciding the link is quite complex, so I wanted to have that logic in the read method for the grid in the controller. It was a bad idea for some reasons, but the strange thing is that the update and destroy methods of the grid stopped working. They were not called at all.

I fooled around a bit and found that if you have a property in the view model that is not even shown in the grid and you have a link in that property the update and destroy methods stop working - they are not called.

The project is quite large, so I have attached only the relevant code snippets. You should be able to test just by adding a string property in any view model and set the value to a link like it is done in the example.

My question is: Is this the desired behaviour of the grid or if I have stumbled on a bug.

Best regards,

Henrik

 

Henrik
Top achievements
Rank 1
 answered on 30 Oct 2018
4 answers
225 views
I have a dropdown list within a tab strip which in some way has a transparent background. The actual control is in front of the grid behind because if I click on the dropdown items they react and everything works correct but I am trying to get the dropdown to not be transparent.
Veselin Tsvetanov
Telerik team
 answered on 30 Oct 2018
1 answer
96 views

Hi

I have a RadGrid with AllowPaging = "True" and PageSize="20", On the OnItemDataBound method I make some rows (e.Item) Display = false.

However the paging totals and the items per page are now incorrect. The totals do not take into account the fact that some rows are now invisible and the number of items per page which was 20 now does not have that amount because some are invisible.

My question is how do I achieve the correct total and how do I get 20 items or rows a page

Attila Antal
Telerik team
 answered on 29 Oct 2018
1 answer
2.0K+ views

I want to be able to conditionally disable selection of a row based on another column on that row.  For example, I don't want to allow the user to select a row if a certain column is null.

I know how to conditionally set row and column attributes on data bound so think it's probably here but not sure what's next

function dataBound(e) {
    var rows = e.sender.tbody.children();
 
    for (var j = 0; j < rows.length; j++) {
        var row = $(rows[j]);
        var dataItem = e.sender.dataItem(row);
 
        // Disable the checkbox if the location isn't set
        if (dataItem.get("Location") === "") {
            row.css('background-color', '#FFFFCF');
            // What goes here?
        }
    }
 
    items = null;
}

 

I also tried to do this on the change event, which kind of work, but the selected IDs (selectedKeyNames) were still being set when the select all checkbox was clicked.

function onChange(e) {
 
    var i = e.sender.select();
    var grid = e.sender;
 
    i.each(function (i, e) {
        var dataItem = grid.dataItem(e);
        if (dataItem.get("Location") !== "") {
            $(e).removeClass("k-state-selected");
        }
    });
 
    items = this.selectedKeyNames();
 
}

 

 

Konstantin Dikov
Telerik team
 answered on 29 Oct 2018
1 answer
672 views

Hi, 

My grid has a column called Merchant which is supposed to turn into a dropdown list on edit.

For some reason, The initial  selected value doesn't connect to the column- does not appear as selected. And when I save on update- The value of the merchant doesn't get the changes on server side- it stays with initial value!!!.

This is the grid:

            @(Html.Kendo().Grid<DefaultLimitViewModel>
            ()
            .Name("DefaultLimitsGrid")           
            .Columns(columns =>
            {
                 columns.Bound(o => o.Id).Hidden();
                columns.Bound(o => o.DateLimitId).Hidden();
                columns.Bound(o => o.Merchant.MerchantName).EditorTemplateName("MerchantEditor").Title("Merchant").Width(150);
                columns.Bound(o => o.Rail).EditorTemplateName("RailEditor").Title("Rail").Width(150);
                columns.Bound(o => o.DefaultAmount).Format("{0:c}");
                columns.Command(command => { command.Edit().CancelText(" ").UpdateText(" ").Text(" "); command.Destroy().Text(" "); }).Width(200);


            })
            .ToolBar(toolBar => toolBar.Create())
            .Sortable()
            .Pageable(x => { x.AlwaysVisible(false); })
            .Scrollable()
            .Editable(editable => editable.Mode(GridEditMode.InLine))         
            .HtmlAttributes(new { style = "height:600px;" })
            .DataSource(dataSource => dataSource
            .Ajax()
            .PageSize(8)
            .Read(read => read.Action("Get_LimitsDefaultData", "Limits"))
            .Update(update => update.Action("UpdateDefaultLimit", "Limits"))
            .Destroy(Delete => Delete.Action("DeleteDefaultLimit", "Limits"))
            .Create(Create => Create.Action("CreateNewDefaultLimit", "Limits"))
            .Model(
            model =>
            {
                model.Id(item => item.DateLimitId);
             
            })

            )      
            )
       

 

 

This is the MerchantEditor

@(Html.Kendo().DropDownList()
                    .Name("Merchant")
                    .DataValueField("MerchantId")
                    .DataTextField("MerchantName")
             .DataSource(d => d.Read("Merchants_Read", "Limits")))
   

this is the Merchans_Read function:

 public IActionResult Merchants_Read()
        {
           
            using (var db = Db.Open())
            {
                var merchants = db.Select<Merchant>().OrderBy(x => x.Name).Select(mm => new MerchantModel { MerchantId = mm.Id, MerchantName = mm.Name }).ToList();

                return Json(merchants);
            }

        }

 

 

 

Viktor Tachev
Telerik team
 answered on 29 Oct 2018
3 answers
131 views

Telerik UI for ASP.NET MVC

I have wrongly assumed that the ListBox would work the same or similar to the grid.

I have created and populated a ListBox

cshtml..

@(Html.Kendo().ListBox()
        .Name(componentName: "lstRewindRolls")
        .Selectable(ListBoxSelectable.Single)
        .HtmlAttributes(new { tabindex = -1, @class = "k-listbox", style = "background-color:black; color:white; height:450px" })
        .DataValueField("DoffID")
        .DataTextField("RollID")
        .DataSource(dataSource => dataSource
            .Read(read => read.Action(actionName: "GetRolls", controllerName: "Rewind").Data("{ DispositionCode: 'R' }"))
        )
        .Events(events=>  events.Change("RewindRollSelected"))
)

 

controller...

public JsonResult GetRolls(string DispositionCode)
{
    try
    {
        var result = db.tblRolls.Where(r => r.strDispositionCode == DispositionCode && r.dtmInventoryRemoved == null)
            .Join(db.tblProductSKUs, p => p.lngProductSKUID, q => q.lngProductSKUID, (r, q) => new { r, q })
            .Join(db.tblProducts, s => s.q.lngProductID, t => t.lngProductID, (s, t) => new { s, t })
        .Select(o => new
        {
            DoffID = o.s.r.lngDoffID.ToString(),
            LaneID = o.s.r.strLaneID,
            RollID = o.s.r.lngDoffID.ToString() + o.s.r.strLaneID
        }).OrderBy(t => new { t.DoffID, t.LaneID }).ToList();
        ;
        return Json(result, JsonRequestBehavior.AllowGet);
    }
    catch (Exception ex)
    {
          ...
      }

 

When the page loads the ListBox is populated as expected.

Once I have processed an item in the list, if appropriate (the disposition changed) I want it removed from the list.

I thought I could simply do a dataSource.read()

var lstBox = $("#lstRewindRolls").data("kendoListBox");
lstBox.dataSource.read();

 

I also tried

var lstBox = $("#lstRewindRolls").data("kendoListBox");
lstBox.dataSource.read({ DispositionCode: 'R' });

 

I cannot seem to get it to work.

Please help.

 

Georgi
Telerik team
 answered on 26 Oct 2018
7 answers
452 views

I have an application that uses a model for the gantt. The model has a restriction of StringLength to 40 characters for the name of the task. However if the user edits a task in the grid and writes more than 40 characters no client validation is done and also the user does not see the failure of this.

Is there a example on how to implement client validations on gantt widget?

Dimitar
Telerik team
 answered on 26 Oct 2018
8 answers
2.8K+ views

Hi everyone,

I've got a ComboBox where I wanted to get tooltip on hover. I did it like the following:

@(Html.Kendo().ComboBoxFor(m => m)
          .Filter("contains")
          .Placeholder(ViewData.ModelMetadata.DisplayName)
          .DataTextField("Definition")
          .DataValueField("Code")
          .HtmlAttributes(new { style = "width: 100%", id = fieldname, title= "Some example"})
          .BindTo((System.Collections.IEnumerable)ViewData[bindto]))

When I hover the mouse on the ComboBox, it shows "Some example" but the real problem is where Kendo Validator message is also showing "Some example", before this I was getting like: This field is required. How can I fix this so it doesn't mix up the Title value with the required field message?

 

Thanks,

Alex

Jesper
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Rank 1
 answered on 26 Oct 2018
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