Hi,

https://docs.telerik.com/blazor-ui/components/grid/grouping/load-on-demand#virtual-scrolling-group-load-on-demand-and-server-side-data-operations

I've followed this example to implement grouping with loading on demand, however I'm having issues with the in line edit.

When selecting the edit button, the grid changes to show the update and cancel buttons however the value that was visible is no longer visible and instead the area becomes greyed out.

<TelerikGrid TItem="@object"
             LoadGroupsOnDemand="true"
             Groupable="false"
             OnStateInit="@((GridStateEventArgs<object> args) => OnStateInitHandler(args))"
             OnRead="@ReadItems"
             OnUpdate="@UpdateHandler"
             OnEdit="@EditHandler"
             ScrollMode="@GridScrollMode.Virtual"
             FilterMode="@GridFilterMode.FilterRow"
             EditMode="@GridEditMode.Inline"
             PageSize="20" RowHeight="60"
             Navigable="true" Sortable="true" Height="600px" >
    <GridColumns>
        <GridColumn Field=@nameof(SiteMappingDto.SiteName) Width="220px" Title="Site" Visible="false">
            <GroupHeaderTemplate>
                <span>Site : @context.Value</span>
            </GroupHeaderTemplate>
        </GridColumn>
        <GridColumn Field="@nameof(SiteMappingDto.TagName)" Title="Tag" Editable="false" />
        <GridColumn Field="@nameof(SiteMappingDto.TagDescription)" Title="Description" Editable="false" />
        <GridColumn Field="@nameof(SiteMappingDto.MappingValue)" Title="Value" Editable="true" />
        <GridCommandColumn>
            <GridCommandButton Command="Save" Icon="@SvgIcon.Save" ShowInEdit="true">Update</GridCommandButton>
            <GridCommandButton Command="Edit" Icon="@SvgIcon.Pencil">Edit</GridCommandButton>
            <GridCommandButton Command="Cancel" Icon="@SvgIcon.Cancel" ShowInEdit="true">Cancel</GridCommandButton>
        </GridCommandColumn>
    </GridColumns>
</TelerikGrid>

I'm trying to convert an existing Blazor project to use Telerik components.  Following this article Convert Project Wizard but the Telerik UI for Blazor > Convert to Telerik Application menu option doesn't show up on either the project context menu or Extensions Menu in the Solution Explorer.

VS2022 V17.9.7

The fully licensed Telerik Extensions are installed in VS2022

The project file includes the package reference  <PackageReference Include="Telerik.UI.for.Blazor" Version="6.0.0" />

How do I get the Convert Project Wizard?

Thanks

Hi there,

Is there a way to handle  the click anywhere on TelerikCard without wrapping it with a div and handling div.onclick?

Regards,

Igor

If i revert to 2024 Q1 the error disappears...

2024-05-16 19:54:03,530 [ERROR] Unhandled exception in circuit 'S77usknbj_EFjppCUa4yC1LlVuSlrA3J5HkaJib6jRs'.
Microsoft.JSInterop.JSException: Could not find 'TelerikBlazor.initListView' ('initListView' was undefined).
Error: Could not find 'TelerikBlazor.initListView' ('initListView' was undefined).
    at http://localhost:5242/_framework/blazor.server.js:1:734
    at Array.forEach (<anonymous>)
    at l.findFunction (http://localhost:5242/_framework/blazor.server.js:1:702)
    at _ (http://localhost:5242/_framework/blazor.server.js:1:5445)
    at http://localhost:5242/_framework/blazor.server.js:1:3238
    at new Promise (<anonymous>)
    at y.beginInvokeJSFromDotNet (http://localhost:5242/_framework/blazor.server.js:1:3201)
    at Xt._invokeClientMethod (http://localhost:5242/_framework/blazor.server.js:1:61001)
    at Xt._processIncomingData (http://localhost:5242/_framework/blazor.server.js:1:58476)
    at Xt.connection.onreceive (http://localhost:5242/_framework/blazor.server.js:1:52117)
   at Microsoft.JSInterop.JSRuntime.InvokeAsync[TValue](Int64 targetInstanceId, String identifier, Object[] args)
   at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime jsRuntime, String identifier, Object[] args)
   at Telerik.Blazor.Components.TelerikListView`1.InitListView()
   at Telerik.Blazor.Components.TelerikListView`1.OnAfterRenderAsync(Boolean firstRender)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)
2024-05-16 19:54:03,838 [WARN ] Unhandled exception rendering component: JavaScript interop calls cannot be issued at this time. This is because the circuit has disconnected and is being disposed.
Microsoft.JSInterop.JSDisconnectedException: JavaScript interop calls cannot be issued at this time. This is because the circuit has disconnected and is being disposed.
   at Microsoft.AspNetCore.Components.Server.Circuits.RemoteJSRuntime.BeginInvokeJS(Int64 asyncHandle, String identifier, String argsJson, JSCallResultType resultType, Int64 targetInstanceId)
   at Microsoft.JSInterop.JSRuntime.InvokeAsync[TValue](Int64 targetInstanceId, String identifier, CancellationToken cancellationToken, Object[] args)
   at Microsoft.JSInterop.JSRuntime.InvokeAsync[TValue](Int64 targetInstanceId, String identifier, Object[] args)
   at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime jsRuntime, String identifier, Object[] args)
   at Telerik.Blazor.Components.TelerikTextArea.SetJsValueAsync()
   at Telerik.Blazor.Components.Common.TextBoxBase.OnAfterRenderInternalAsync(Boolean firstRender)
   at Telerik.Blazor.Components.Common.TextBoxBase.OnAfterRenderAsync(Boolean firstRender)
   at Telerik.Blazor.Components.TelerikTextArea.OnAfterRenderAsync(Boolean firstRender)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)

Hi, i need to design a class to handle pagination in my api endpoints, so i have a question about 2 properties of DataSourceRequest.

Page: I assume it's used only in pagination to set the page number.

Skip: I assume it's used only on virtual pagination to define the records to skip. 

I think this 2 properties as mutual exclusive (if used Page, Skip is ignored, if used Skip, Page is ignored).

Is this true or there are situations where are both used?  

and if one exclude the other... why you have not handled the pagination only with Skip / Take properties (assumed who Take correspond to PageSize in classic pagination, Page can be calculated as (Skip / Take) + 1)?

i need this answers because if this properties are multual exclusive i assume i can design my pagination class with only 2 properties (Skip / Take) instead of 3 (Page / PageSize / Skip) as done in DataSourceRequest object.

Thanks

Thanks

Data has 6 columns, A, B, C with a value and a date.

AValue - double
ADate - datetime
BValue - double
BDate - datetime
CValue - double
CDate - datetime

Client requests that one of the 3 values A, B, C is chosen by drop down.

In a code-behind we group by a particular Value and then sort descending so that the highest value is on top of the grouping. Easy.

But then inside the grouping of Value are to be rows from the data that are not matched by Value but by a Search based on date range +- 5 minutes.

Example: client selects A

1. Grid groups by AValue and then sorts DESC
2. Inside Group[0] the client wants to Search all the GridData and display BValue and CValue that fall within a date range +- 5 minutes from Group[0].ADate

Right now I see SearchFilter inside the GridState class (for the whole Grid) but I think for what the client needs we would have a SearchFilter inside of GroupDescriptor (for that Group)?

Is this possible? 

If that is not possible, would it be possible to use 1 GridData as the source for the Grid and another GridData as the source for the Grid that appears inside each grouping?

Note: for one row in the data, the max value may be A, B or C.  But the date times in that row do not match up.  They are 3 different date time values.

I have a Blazor grid for which I populate an option dropdown. I use the OnAdd="@AddHandler" to add a new row. There are two other columns in the grid that have calculated values based on Name grid and 2 others, but once the option is populated, the only way for the calculations to work is to select another name, then come back to the first value. Is there a way to default the value to text that says "Select name" and make the user choose something?

                           <EditorTemplate>
                               @{
                                   CurrentlyEditedRecord = context as Record;
                                   <select @bind="@CurrentlyEditedRecord.Name">
                                       @foreach (var item in Products)
                                       {
                                           <option value="@item">@item</option>
                                       }
                                   </select>
                                      }
                           </EditorTemplate>

Can we get a Switch and Checkbox theme color property similar to the rest of the components.

😀

Hello, I have the following requirement, I need to be able to re-order telerik grid columns programmatically.  I have come up with a simple sample project to demonstrate the need, but I've noticed that although it re-orders the columns the first time I press a button (see sample), it does not re-order the columns after that....something which I find very peculiar. Notice, I tried two approaches in re-ordering columns, one using simple rearrangement of <GridColumn>s and another is to muck around with Grid state object (_grid.GetState()).  Any help is greatly appreciated.

<div style="width: 100%; height: 100%">
    <TelerikGrid TItem="@Model"
                 FilterMode="@GridFilterMode.FilterRow"
                 SelectionMode="GridSelectionMode.Single"
                 EnableLoaderContainer="true"
                 
                 Pageable="false"
                 Sortable="true"
                 Height="100%"
                 OnStateChanged="OnStateChanged"
                 Data="Data"
                 @ref=@_grid>
        <GridColumns>
            @{
                foreach (var col in ColumnOrder)
                {
                    if (col == 1)
                    {
                        <GridColumn Field="@(nameof(Model.One))" FieldType="@(typeof(string))" Title="One Values"></GridColumn>
                    }
                    else if (col == 2)
                    {
                        <GridColumn Field="@(nameof(Model.Two))" FieldType="@(typeof(string))" Title="Two Values"></GridColumn>
                    }
                    else if (col == 3)
                    {
                        <GridColumn Field="@(nameof(Model.Three))" FieldType="@(typeof(string))" Title="Three Values"></GridColumn>
                    }
                }
            }
        </GridColumns>

    </TelerikGrid>
    <Button @onclick="ButtonClick1">Order Columns: 3,2,1</Button>
    <Button @onclick="ButtonClick2">Order Columns: 2,3,1</Button>
    <Button @onclick="ButtonClick3">Order Columns: 1,2,3</Button>
</div>

@code {
    private List<Model> Data = new();
    private int[] ColumnOrder = new[] { 1,2,3 };
    private TelerikGrid<Model> _grid;

    protected override void OnInitialized()
    {
        BuildData();
    }

    private void BuildData()
    {
        for (int i = 0; i < 10; i++)
        {
            Data.Add(new Model
            {
                One=$"One {i}",
                Two=$"Two {i}",
                Three=$"Three {i}",
            });
        }
    }

    private void ButtonClick1()
    {
        ColumnOrder = new[] { 3,2,1 };
        _grid.Rebind();
        StateHasChanged();
    }

    private void ButtonClick2()
    {
        ColumnOrder = new[] { 2, 3, 1 };
        _grid.Rebind();
        StateHasChanged();
    }

    private void ButtonClick3()
    {
        var state = _grid.GetState();
        var i = 0;
        foreach (var col in state.ColumnStates)
        {
            if (col.Field == "One") col.Index = 0;
            if (col.Field == "Two") col.Index = 1;
            if (col.Field == "Three") col.Index = 2;
        }
        //ColumnOrder = new[] { 1,2,3 };
        StateHasChanged();
    }

    private void OnStateChanged(GridStateEventArgs<Model> obj)
    {
        Console.WriteLine("StateChanged");
    }

    public class Model
    {
        public string One { get; set; }
        public string Two { get; set; }
        public string Three { get; set; }
    }
}