I want to use a multi-checkbox filter with ExpandoObject in Grid.

If a Grid column is bound to a nullable bool field and some of the data source records have null values for that field they are not displayed, the Grid cells appear empty.

It would be nice if the Grid displays some text for the null values, for example just "null".

Currently, when you open a ColumnMenu, to expand its SubMenus (for example, Filter, Column chooser) you need to additionally click on the corresponding button.

I'd like to have these SubMenus initially expanded when the ColumnMenu is opened.

Does the Blazor grid have any support for any or all queries on sub-property collections? I would like to have the grid OnRead be able to generate a query against a sub-entity collection.

E.g.

GET serviceRoot/People?$filter=Emails/any(s:endswith(s, 'contoso.com'))

From what I can tell the Column.FieldName property only will generate a valid query for scalar properties. Is there any way to make this work?

Given the Northwind OData sample https://demos.telerik.com/kendo-ui/service-v4/odata. I would like to display a grid of all customers. In the grid, I would like to have a column that provides filtering for the orders shipper column as in the query below.

https://demos.telerik.com/kendo-ui/service-v4/odata/Customers?$expand=Orders&$filter=Orders/any(d: contains(d/Shipper/CompanyName,'Speedy Express'))

There does not seem to be a way for the in-built filter mechanism to use a lambda and it seems like there should be.

Expose GroupableSettings with an option to specify whether to render the group footer. The possible values should be always (like current implementation), or when the group is expanded. An example (just for demonstration) api would be:

```

<GridSettings>

<GridGroupableSettings Footer="@GridGroupableFooterVisible.Always | @GridGroupableFooterVisible.Expanded"></GridGroupableSettings>

</GridSettings>

```

Consider the following example. It will trigger AmbiguousMatchException, because reflection discovers two SpecialProp properties.

<TelerikGrid TItem="@GridModel"
             Data="@GridData"
             AutoGenerateColumns="true">
</TelerikGrid>

@code {
    List<GridModel> GridData { get; set; } = new();

    protected override void OnInitialized()
    {
        for (int i = 1; i <= 3; i++)
        {
            GridData.Add(new GridModel()
            {
                SpecialProp = i,
                Text = "Text " + (i * 111)
            });
        }
    }

    public record GridModel : Base1 { }

    public record Base1 : Base2
    {
        public new decimal? SpecialProp { get => base.SpecialProp / base.HelperProp.GetValueOrDefault(1); set => base.SpecialProp = value.HasValue ? (int)(value.GetValueOrDefault() * base.HelperProp.GetValueOrDefault(1)) : null; }
    }

    public record Base2
    {
        public int? SpecialProp { get; set; }
        public string Text { get; set; }
        public int? HelperProp = 10;
    }
}

Why not replace

private PropertyInfo FieldPropertyInfo => ContainerGenericArgument?.GetProperty(Field);

with something like

PropertyInfo FieldPropertyInfo = ContainerGenericArgument?.GetProperties().FirstOrDefault(p => p.Name == Field);

with the possibility to cache the result from GetProperties()?

I have a Grid with numerous columns and I am using inline editing. When in edit mode, I'd like to add custom content to each cell - for example, a validation error message from server validation.

To achieve that, I have to use EditorTemplate. However, I want to keep the default editor because I'd like to avoid having to add the relevant control for every single cell each time I add a new Grid.

A nice feature would be frozen Group Rows.

So if you grouped your data in the Grid and scroll. The Group should stick underneath the header.

As an example look here: https://www.ag-grid.com/angular-data-grid/grouping-sticky-groups/

Are there any plans to have the datagrid be both groupable and draggable?

Thanks,

Andy

For example, when I have two levels of grouping, I want to render only the inner footer templates, but not the outer.

While this is possible with some CSS like the snippet below, this does not scale well, and does not work well for arbitrary number of groups

<style>
    .k-group-footer + .k-group-footer {
       display:none;
    }
</style>

Group by the Vacation and Team columns to see the effect

<TelerikGrid Data=@GridData Groupable="true" Pageable="true">
    <GridColumns>
        <GridColumn Field=@nameof(Employee.Name) Groupable="false" />
        <GridColumn Field=@nameof(Employee.Team) Title="Team">
            <GroupFooterTemplate>
                Team group footer
            </GroupFooterTemplate>
        </GridColumn>
        <GridColumn Field=@nameof(Employee.IsOnLeave) Title="On Vacation">
            <GroupFooterTemplate>
                IsOnLeave group footer
            </GroupFooterTemplate>
            </GridColumn>
    </GridColumns>
</TelerikGrid>

@code {
    public List<Employee> GridData { get; set; }

    protected override void OnInitialized()
    {
        GridData = new List<Employee>();
        var rand = new Random();
        for (int i = 0; i < 15; i++)
        {
            GridData.Add(new Employee()
            {
                EmployeeId = i,
                Name = "Employee " + i.ToString(),
                Team = "Team " + i % 3,
                IsOnLeave = i % 2 == 0
            });
        }
    }

    public class Employee
    {
        public int EmployeeId { get; set; }
        public string Name { get; set; }
        public string Team { get; set; }
        public bool IsOnLeave { get; set; }
    }
}

Hi,

Please lunch your demo on mobile, and try resizing a column it is very hard or impossible to do it.

Isn't possible to make resizing more pixel sensible around the separator for instance 10 pixels, and add AUTO FIT column/columns in column menu.  

Best regards,

AutoFitting all columns should not leave blank space in the Grid, the last column should take the available space.

This functionality might be triggered by a setting a bool parameter to true. 

Hello,

I want to set AutoGenerateColumns="true", but exclude some of the class members (fields / columns), which I have declared manually in the GridColumns collection.