Questions on UI for ASP.NET Core Forum

0 answers

534 views

Grid Column Menu Unstick Message is Null

In our UI for ASP.NET Core R3 2020 (2020.3.915) release, the Column menu message of unsticking a column is "null".

This bug will be resolved in our next official release.

In the meantime, as a workaround, manually set the Unstick Column menu message:

.ColumnMenu(c => c.Messages(m => m.Unstick("Unstick Column")))

Grid

asked on 16 Sep 2020

1 answer

6 views

Get 2 cancel buttons thats one to manny!

Why do i have 3 buttons special the last Cancel ?

@(
Html.Kendo().Grid<IndexModel.CompanyFinancialVM>()
    .Name("gridCompanyFinancial")
    .Navigatable()
    .Height(590)
    .Sortable()
    .Editable(e => e.Mode(GridEditMode.InCell))
    .Scrollable()
    .ToolBar(t => { t.Save(); t.CancelEdit(); })
    .Columns(columns =>
    {
        columns.Bound(f => f.CompanyName).Title("Company").Width(150);
        columns.Bound(f => f.PeriodName).Title("Period").Width(120);
        columns.Bound(f => f.VariableName).Title("Variable").Width(150);
        columns.Bound(f => f.VariableTypeName).Title("Variable Type").Width(120);
        columns.Bound(f => f.Val).Title("Val")
            .Width(100)
            .Format("{0:n}") // Show 4 decimals and thousand separator
            .EditorTemplateName("Decimal");
        columns.Bound(f => f.ValCurr)
            .Title("Currency")
            .ClientTemplate("#= getCurrencyName(ValCurr) #")
            .EditorTemplateName("Currency")
            .Width(120);
        columns.Bound(f => f.QuantumFK)
            .Title("Quantum")
            .ClientTemplate("#= getQuantumName(QuantumFK) #")
            .EditorTemplateName("QuantumFK")
            .Width(120);
        columns.Bound(f => f.Priority).Title("Priority").Width(80);
        columns.Bound(f => f.SpecOrder).Title("Spec Order").Width(100);
        columns.Bound(f => f.Rem).Title("Remarks").EditorTemplateName("Rem");
    })
    .DataSource(ds => ds.Ajax()
        .Read(r => r.Url(Url.Content("~/CompanyFinancial/Index?handler=Read")).Data("getGridRequestData"))
        .Update(u => u.Url(Url.Content("~/CompanyFinancial/Index?handler=Update")).Data("forgeryToken"))
        .Batch(true)
        .Model(m =>
        {
            m.Id(f => f.Nr);
            m.Field(f => f.CompanyName);
            m.Field(f => f.PeriodName);
            m.Field(f => f.VariableName);
            m.Field(f => f.VariableTypeName);
            m.Field(f => f.Priority);
            m.Field(f => f.SpecOrder);
            m.Field(f => f.Val);
            m.Field(f => f.ValCurr);
            m.Field(f => f.QuantumFK);
            m.Field(f => f.Rem);
        })
        .Sort(s => s.Add(f => f.SpecOrder).Ascending())
        .PageSize(20)
    )
    .Pageable()

I have disabled all script on the page, except the simpel lookups for foreginkeys in dataset...

answered on 07 Jul 2025

1 answer

14 views

Grid instance in javascript

Hi,

I'm using Teleik Core components, latest version in mvc application.

I have defined grid in view with name "gridMara"
In javascript i have code:

var gridMara = $("#gridMara").data("kendoGrid");

I checked in console, $("#gridMara") is initialized.
But when i use statement:

var gridMara = $("#gridMara").data("kendoGrid");

the value of gridMara is undefined.

Please help.

Regards,
Tomaz

Grid

answered on 01 Jul 2025

2 answers

10 views

Multiselect in grid without CTRL

Hi all,

Going nuts over this problem. Should be simple, and for other technologies telerik shows solutions, but can not get it to work for razor pages .net core.

What i want is:

I have a grid that opens in a popup when editting. In the editortemplate i have a childgrid showing all possible children that can be added to this record. That is working. However, i want to multiselect in this grid without having my customers to hold down ctrl or use a textbox. Main reason: When using a textbox, you really have to click in the textbox, clicking outsisde of it won't work. So i removed the select column (the checkboxes) and just want people to click somewhere on a row to select it and be able to click on another row without the fiorst one loosing it's selected status. The only hook i can find is the onchange event. This indeed allows me to catch the slection process. However, the previously selected items are not available any more, so i oose them.

Anyone an idea how to do this quite simple trick?

Grid

answered on 28 Jun 2025

1 answer

12 views

Drag and Drop from a Treeview to a Grid

I am trying to perform like this drag item from kendo Treelist to Drop in Kendo grid but not working in .net code using
But when I doing drag from treelist to grid I am not event getitng debug
Please help me asap if anyone has solution

Razor page code:

<div style="height: 100%;">
    <!-- Parent Grid -->
    <div style="width: 60%; height: 100%; float: left;">
        <h2>{_ParentItem_}s</h2>
        @(Html.Kendo().TreeList<ParentChildModel>()
            .Name("ParentGrid")
            .Columns(columns =>
            {
                columns.Add().Field(p => p.Id).Width(80).Hidden(false);
                columns.Add().Field(p => p.ItemId).Width(80).Hidden(true);
                columns.Add().Field(c => c.Name).Title("Name").Width(140).Template("#= getIndentedName(Name, Id) #");
                columns.Add().Field(e => e.AssetCode).Title("{_AssetCode_}").Width(60);
                columns.Add().Field(e => e.Weight).Title("Weight").Format("{0:n3}").Width(40).Hidden(false);
                columns.Add().Field(e => e.Dimension).Title("Dimension").Width(100).Hidden(false);
                columns.Add().Command(c => 
                { 
                    c.Edit().Text("Edit").ClassName("k-grid-edit");
                    c.Destroy().Text("Delete").ClassName("k-grid-delete");
                }).Title("Actions").Width(80);
            })
            .Editable(editable => editable.Move(move => move.Reorderable(true)).Mode(TreeListEditMode.PopUp)
                .TemplateName("ParentPopupEditor"))
            .Toolbar(toolbar =>
            {
                toolbar.Create().Text("Add New {_ParentItem_}");
                toolbar.Custom().Template(
                    "<div>" +
                    "<input id='toolbarComboBox' style='width: 300px;' />" +
                    "</div>"
                );
                toolbar.Search();
            })
            .DataSource(dataSource => dataSource
                .Read(read => read.Action("GetParentAndChildItems", "ParentChild").Data("parentSearchData"))
                .Create(update => update.Action("AddNewRecord", "ParentChild").Type(HttpVerbs.Post))
                .Update(u => u.Action("UpdateRecord", "ParentChild").Type(HttpVerbs.Post))  //.Data("saveFormData"))
                .Destroy(update => update.Action("DeleteRecord", "ParentChild"))
                .ServerOperation(false)
                .PageSize(20)
                .Model(m =>
                {
                    m.Id(f => f.Id);
                    m.ParentId(f => f.ParentId);
                    m.Expanded(true);
                    m.Field(f => f.ItemId);
                    m.Field(f => f.AssetName);
                    m.Field(f => f.AssetCode);
                    m.Field(f => f.Weight);
                    m.Field(f => f.Dimension);
                })
            )
            .Pageable(x => x.PageSizes(new int[] { 20, 50, 100, 200, 500 }).Refresh(true).Input(true))
            .Sortable()
            .Selectable()
            .Events(e => e.DataBound("dataBound").Save("onEditorDataSave").DragEnd("onDragEnd"))//.DragStart("onDragStart").DragEnd("onDragEnd")
        )
    </div>

    <!-- Assignable Assets -->
    <div style="width: 40%; height: 100%; float: right;">
        <h2>Assignable {_Asset_}s</h2>
        @(Html.Kendo().Grid<ItemDto>()
            .Name("AssetGrid")
            .HtmlAttributes(new { style = "height:100%; width:100%;" })
            .Columns(columns =>
            {
                //columns.Template(@<text> </text>).Draggable(true).Width(30);
                columns.Template("").Draggable(true);
                columns.Bound(a => a.Id).Title("Id").Width(60).HtmlAttributes(new { @class = "idColStyle" });
                columns.Bound(a => a.Title).Title("{_AssetName_}").Width(150);
                columns.Bound(a => a.ItemTypeName).Title("{_AssetType_}").Width(100);
                columns.Bound(a => a.LocationName).Title("Destination {_Location_}").Width(110);
            })
            .ToolBar(toolbar =>
            {
                toolbar.Custom().ClientTemplate(Html.Kendo().Template().AddComponent(c => c
                    .TextBox().Name("toolbarTextBox")
                    .Placeholder("Filter by {_AssetName_}/{_AssetType_}...")
                    .HtmlAttributes(new { style = "float: right; width: 300px;" })
                    .Events(ev => ev.Change("toolbarTextBoxChanged"))
                ));
                toolbar.Search();
            })
            .DataSource(dataSource => dataSource
                .Ajax()
                .PageSize(20)
                .ServerOperation(false)
                .Model(m => m.Id("Id")) //Ensure that the Model identifier ("Id") is defined.
                .Read(read => read.Action("GetAssignableAssets", "ParentChild").Data("childrenSearchData"))
            )
            .Pageable()
            .Sortable()
            .Selectable()
            )
    </div>
</div>

JS Code:

$(document).ready(function () {
    var treeList = $("#ParentGrid").data("kendoTreeList");
    if (treeList) {
        treeList.dataSource.bind("requestEnd", function (e) {
            if (e.response) {
                if (e.type === "create") {
                    console.log("call requestEnd type: create");
                    treeList.dataSource.read(); // Refresh immediately
                } else if (e.type === "update") {
                    console.log("call requestEnd type: update");
                    setTimeout(function () {
                        treeList.dataSource.read(); // Refresh after 1 second
                    }, 200); // 1000 milliseconds = 1 second
                }
            }
        });
    }
});

function onDragEnd(e) {
    var draggedItem = e.source;         // The dragged item
    var newParent = e.destination;      // The new parent (if changed)
    var newOrder = e.position;  // The new order in the parent

    // Prepare data for backend
    var updateData = {
        sourceId: draggedItem.id,
        destId: newParent ? newParent.id : null,
        destParentId: newParent ? newParent.id : null,
        //sourceItemId = draggedItem.ItemId,
        //destItemId = newParent ? newParent.ItemId : null,
        order: newOrder
    };

    // Make an AJAX call to update the hierarchy/order in the backend
    $.ajax({
        url: "/ParentChild/Reorder", //"/ParentChild/Reorder",
        type: "POST",
        data: {           //{destId: updateData.destId, sourceId: updateData.sourceId, order: updateData.order},
            destId: e.destination.Id,
            sourceId: e.source.Id,
            destParentItemId: e.destination.ParentItemId,
            order: e.position
        },
        //contentType: "application/json",
        success: function () {
            // Optionally refresh the TreeList
            $("#ParentGrid").data("kendoTreeList").dataSource.read();
        },
        error: function () {
            $("#ParentGrid").data("kendoTreeList").dataSource.read();
            alert("Reorder failed (Can't make child asset as parent)");
        }
    });
    console.log("Drag operation ended!", e);
}

// Initialize ParentGrid rows as drop targets
window.initializeDropTargets = function () {
    var draggedItem = null;

    // Make Rows Draggable
    $("#AssetGrid").on("mousedown", "tr", function () {
        var grid = $("#AssetGrid").data("kendoGrid");
        var dataItem = grid.dataItem($(this));
        draggedItem = dataItem; // Track the dragged item's data
        console.log("AssetGrid -> mousedown", draggedItem);
    });

    // Track dragged item from ParentGrid
    $("#ParentGrid").on("mousedown", "tr", function () {
        var parentGrid = $("#ParentGrid").data("kendoTreeList");
        draggedItem = parentGrid.dataItem($(this));
        console.log("ParentGrid -> mousedown", draggedItem);
    });

    $("#ParentGrid").kendoDropTargetArea({
        filter: "tbody tr",
        group: "assetGroup", // Match the draggable group
        drop: function (e) {
            var parentGrid = $("#ParentGrid").data("kendoTreeList"); // Get the Kendo Grid instance
            var dropTargetRow = $(e.dropTarget);    //.closest("#ParentGrid tr.k-table-row.k-master-row"); // The row where the item was dropped
            var targetItem = parentGrid.dataItem(dropTargetRow); // Target row data

            console.log("Dragged Item:", draggedItem.Id);
            console.log("Drop Target:", e.dropTarget);
            console.log("Drop Target Row:", dropTargetRow);
            console.log("Target Item:", targetItem.Id);

            if (targetItem && draggedItem) {
                //alert("Item '" + draggedItem.Title + "' dropped on Parent '" + targetItem.Name + "'");

                // Add AJAX call here to save assignment in the database
                $.ajax({
                    url: "/ParentChild/AssignAsset",
                    method: "POST",
                    data: { parentId: targetItem.Id, itemId: draggedItem.Id, parentItemId: targetItem.ParentItemId },
                    success: function (response) {
                        parentGrid.dataSource.read();
                        $("#AssetGrid").data("kendoGrid").dataSource.read();
                        console.log("AssignAsset ended from kendoDropTargetArea -> drop");
                        //parentGrid.refresh();
                        //alert("Assignment successful!");
                    },
                    error: function () {
                        alert("Error while assigning asset (Can't assign children to child asset).");
                    }
                });
            }
        },
        dragend: function (e) {
            var draggedItem = e.source; // The dragged item
            var newParent = e.destination; // The new parent (if changed)
            var newOrder = e.destinationIndex; // The new order in the parent

            // Prepare data for backend
            var updateData = {
                id: draggedItem.id,
                parentId: newParent ? newParent.id : null,
                order: newOrder
            };

            // Make an AJAX call to update the hierarchy/order in the backend
            $.ajax({
                url: "/ParentChild/Reorder",
                type: "POST",
                data: JSON.stringify(updateData),
                contentType: "application/json",
                success: function () {
                    // Optionally refresh the TreeList
                    $("#TreeList").data("kendoTreeList").dataSource.read();
                    console.log("AssignAsset ended from kendoDropTargetArea -> dragend -> Reorder");
                },
                error: function () {
                    alert("Reorder failed");
                }
            });
        }
    });

    $("#AssetGrid").kendoDropTarget({
        filter: "tbody tr",
        group: "gridGroup", // Match the draggable group
        drop: function (e) {
            var parentGrid = $("#ParentGrid").data("kendoTreeList"); // Get the Kendo Grid instance
            var dropTargetRow = $(e.dropTarget);    //.closest("#ParentGrid tr.k-table-row.k-master-row"); // The row where the item was dropped
            var targetItem = parentGrid.dataItem(dropTargetRow); // Target row data

            console.log("Dragged Item:", draggedItem.Id);
            console.log("Drop Target:", e.dropTarget);
            console.log("Drop Target Row:", dropTargetRow);
            console.log("Target Item:", targetItem.Id);

            if (targetItem && draggedItem) {
                //alert("Item '" + draggedItem.Title + "' dropped on Parent '" + targetItem.Name + "'");

                // Add AJAX call here to save assignment in the database
                $.ajax({
                    url: "/ParentChild/UnAssignAsset",
                    method: "POST",
                    data: { parentId: targetItem.Id, itemId: draggedItem.Id, parentItemId: targetItem.ParentItemId },
                    success: function (response) {
                        parentGrid.dataSource.read();
                        $("#AssetGrid").data("kendoGrid").dataSource.read();
                        console.log("AssignAsset ended from kendoDropTargetArea -> drop");
                        //parentGrid.refresh();
                        //alert("Assignment successful!");
                    },
                    error: function () {
                        alert("Error while assigning asset (Can't assign children to child asset).");
                    }
                });
            }
        }
    });
};


$(document).ready(function () {
    // Make rows in the AssetGrid draggable
    $("#AssetGrid").kendoDraggable({
        filter: "tbody > tr", // Target rows in the grid
        hint: function (element) {
            return $("<div class='k-card k-card-type'><b>" + $(element).find("td:nth-child(2)").text() + "</b></div>");
        },
        group: "assetGroup"
    });

    var treeList = $("#ParentGrid").data("kendoTreeList");
    // Configure drag-and-drop from TreeList to Grid
    treeList.wrapper.kendoDraggable({
        filter: "tr",
        hint: function (element) {
            var item = treeList.dataItem(element);
            console.log("treeList.wrapper.kendoDraggable -> ", item);
            return element;
        },
        group: "gridGroup"         
    });
    window.initializeDropTargets();
});

Grid

TreeList

answered on 16 Jun 2025

1 answer

15 views

Grid Complex Model (Create/update model is empty)

Hello,

create/update posts an empty model to the controller.

It was working in a very old asp.net mvc project. I setup a new asp.net core project. I spent some hours to fix this, but no luck.

Reading the data source is ok and the data is shown in column 'valuestream'. At the moment for 'Agenda' two values are shown, editable with a mutiselect.

Controller:

public ActionResult ManagerQuestionnaireCreate([DataSourceRequest] DataSourceRequest request, QuestionnaireViewModel rs)
{

....

return Json(new[] { rs }.ToDataSourceResult(request, ModelState));
}

Model:

View:

Grid

MultiSelect

answered on 12 Jun 2025

1 answer

11 views

GridToolBarCommandFactory Grid Name

Prior to the most recent version we could use reflection to get the grid name in this method.

We have changed it to pass the grid name, but was wondering if there is a programmatic way of getting the grid name without passing it

public static GridToolBarCommandFactory<T> SuperSearch<T>(this GridToolBarCommandFactory<T> builder, string gridName, string title = "Super Search...") where T : class
{
builder.Spacer();
builder.Custom().ClientTemplate($"<span class=\"k-input k-input-md k-rounded-md k-input-solid\" style=\"width: 400px;\"><input id=\"superSearch\" name=\"superSearch\" oninput=\"window.top.superSearch('{gridName}')\" class=\"k-input-inner\" autocomplete=\"off\" placeholder=\"{title}\"/></span>");

return builder;
}

Grid

answered on 03 Jun 2025

1 answer

8 views

InCell Editing

I was wondering if it was possible to skip non-editable fields when using Tab to navigate the grid rows?

Grid

answered on 26 May 2025

1 answer

26 views

ExportColumnSettings date format issue

i have sample application. when export to excel using ToXlsxStream date field show as number value instead of date .

Grid

Spreadsheet

answered on 12 May 2025

1 answer

41 views

Values clearing from multiselect UI, but still sent to controller in a custom grid edit

I have a grid with custom editors and they are bound to the grid as such.

columns.Bound(x => x.Parent).EditorTemplateName("ParentEditor").ClientTemplate("#= Parent === undefined || Parent === null ? '' : parentTemplate(Parent)#");
columns.Bound(x => x.Child).EditorTemplateName("ChildEditor").ClientTemplate("#= Child === undefined || Child === null ? '' : childTemplate(Child)#");

The two editor templates look like this:

@model List<ParentViewModel>  
@(Html.Kendo()  
     .MultiSelectFor(m => m)  
     .DataTextField("Name")  
     .DataValueField("Id")  
     .Placeholder("Select one or more parents")  
     .AutoBind(true)  
     .TagMode(MultiSelectTagMode.Multiple)   
     .DataSource(source =>  
     {  
         source  
         .Read(read =>  
         {  
             read.Action("GetParent", "Lookup");  
         });  
     })  
     .Events(events => events.Change("onParentChange"))  
)  


@model List<ChildViewModel>
@(Html.Kendo()
      .MultiSelectFor(m => m)
      .DataTextField("Name")
      .DataValueField("Id")
      .Placeholder("Select one or more children")
      .AutoBind(true)
      .TagMode(MultiSelectTagMode.Multiple)
      .DataSource(source =>
      {
          source
          .Read(read =>
          {
              read.Action("GetChild", "Lookup").Data("getCurrentParents");
          })
          ;
      })
)

The UI is properly populating when the grid loads and looks like this:

Coumn Parent|Column Child
A |A1
B |B1, B2

When the user edits the row and removes item B from Column Parent, this code is invoked (which I got from Kendo UI Snippet | Kendo UI Dojo)

function onParentChange(e) {
    var selectedonParentChange = this.value();
    let dataItems = e.sender.dataItems();

	var multiSelect = $("#Child").data("kendoMultiSelect");
	var value = multiSelect.value();
	multiSelect.dataSource.filter(getFilterObj(dataItems));
	multiSelect.dataSource.filter({});  // Adding or removing has no effect
    multiSelect.refresh();
	multiSelect.value(value);
	console.log("Second value: " + multiSelect.value());
    var dataSource = multiSelect.dataSource;
    dataSource.read();
}

function getFilterObj(dataItems){
  let filtObj = {
    logic: "or",
    filters: [],
  };

  if(dataItems.length > 0){
    for (var i = 0; i < dataItems.length; i++) {
      filtObj.filters.push({
        field: "ParentId",
        operator: "eq",
        value: dataItems[i].Id
      });
    }
  } else {
    filtObj.filters.push({
        field: "ParentId",
        operator: "eq",
        value: ""
      });
  }

  return filtObj;
}

After the code runs, the UI looks like this:
Coumn Parent|Column Child
A |A1

So far so good. The problem is that when the user hits save this ends up on the Network in the form data:

Parent[0].Id: ParentIdA
Parent[0].Name: A
Child[0].Id: ChildId1
Child[0].Name: A1
Child[0].ParentId: ParentIdA
Child[1].Id: ChildId2
Child[1].Name: B1
Child[1].ParentId: ParentIdB
Child[2].Id: ChildId3
Child[2].Name: B2
Child[2].ParentId: ParentIdB

Although B1 and B2 no longer display in the UI, they are still being sent to the controller when the item is saved. I'm not sure how to prevent them from being sent when they are no longer in the UI.

Kendo Version: 2024.4.1112

Editor

Grid

MultiSelect

answered on 06 May 2025