# Template inside Composite Columns

**URL:** <https://forum.radzen.com/t/template-inside-composite-columns/11408>\
**Category:** Radzen.Blazor Components\
**Created:** [July 27, 2022, 6:49am UTC](https://forum.radzen.com/t/template-inside-composite-columns/11408 "2022-07-27T06:49:14Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![xky0007](https://forum.radzen.com/user_avatar/forum.radzen.com/xky0007/32/11281_2.png) [@xky0007](https://forum.radzen.com/u/xky0007)\
**Post date:** [July 27, 2022, 6:49am UTC](https://forum.radzen.com/t/template-inside-composite-columns/11408/1 "2022-07-27T06:49:14Z")

</div>

Suppose I have dynamic list that I wanna use in a composite columns. I tried belowed code, but the composite columns is empty... It semms `<Columns>` doesn't support be used inside `<Template>`

```auto
        <RadzenDataGridColumn TItem="DailyEventSummary" Title="Event Detail">
            <Template Context="data">
                <Columns>
                    @foreach (var dailySeveritySummary in data.DailyEventCount)
                    {
                        <RadzenDataGridColumn TItem="DailyEventSummary" Title=@dailySeveritySummary.Severity.ToString()
                                          Property=@dailySeveritySummary.Quantity.ToString() />
                    }
                </Columns>
            </Template>

        </RadzenDataGridColumn>

```

---

<div class="post-metadata">

**Author:** ![korchev](https://forum.radzen.com/user_avatar/forum.radzen.com/korchev/32/4_2.png) [@korchev](https://forum.radzen.com/u/korchev)\
**Post date:** [July 27, 2022, 1:54pm UTC](https://forum.radzen.com/t/template-inside-composite-columns/11408/2 "2022-07-27T13:54:55Z")

</div>

Hi @xky0007,

Indeed you cannot define nested columns inside the template of a parent column. The scenario you are trying to implement (having specific columns per data item) is not supported as columns apply to all data items.