[Solved] Is the Field attribute of FormItem needed?

[Marc Simkin]

If I am using templates for all my FieldItems, does each FieldItem need to have the Field attribute to associate the fielditem with the corresponding field in the data model?

See the sample markup below.

Thanks

<TelerikForm EditContext="@EditContext"
             Columns="2"
             ColumnSpacing="20px"
             Orientation="FormOrientation.Vertical"
             OnValidSubmit="OnValidSubmit">
    <FormValidation>
        <FluentValidationValidator />
    </FormValidation>
    <FormItems>
        <FormGroup LabelText="Set options">
            <FormItem>
                <Template>
                    <label class="k-label k-form-label" for="setName">Set Name</label>
                    <TelerikTextBox Id="setName" @bind-Value="@model.SetName"></TelerikTextBox>
                </Template>
            </FormItem>
            <FormItem>
                <Template>
                    <TelerikDateRangePicker @bind-StartValue="@model.StartDate"
                                            @bind-EndValue="@model.EndDate"
                                            Min="@ViewModel.MinStartDate"
                                            StartId="startDate"
                                            EndId="endDate"
                                            DisabledDates="@ViewModel.DisabledDates">
                    </TelerikDateRangePicker>
                </Template>
            </FormItem>
            <FormGroup Columns="2">
                <FormItem>
                    <Template>
                        <label class="k-label k-form-label" for="allowAutoFill">Allow Auto Fill</label>
                        <TelerikCheckBox Id="allowAutoFill" @bind-Value="@model.AllowAutoFill"></TelerikCheckBox>
                    </Template>
                </FormItem>
                <FormItem Field="@nameof(model.RequiredRecsToExpire)">
                    <Template>
                        <label class="k-label k-form-label">Required Recs to Expire</label>
                        <TelerikSlider @bind-Value="@model.RequiredRecsToExpire"
                                       Min="0"
                                       Max="20"
                                       SmallStep="1"
                                       LargeStep="5"
                                       ShowButtons="false" />
                    </Template>
                </FormItem>
            </FormGroup>
        </FormGroup>
        <FormGroup LabelText="Initial starting point">
            <FormItem LabelText="existingSets">
                <Template>
                    <label class="k-label k-form-label" for="existingSets">From existing recommendation sets</label>
                    <RecSetSelector AvailableSets="@ViewModel.AvailableSets"
                                    IsNew="true"
                                    SelectedSetId="@ViewModel.SelectedSetId"
                                    OnSetSelected="@OnSetSelected" />
                </Template>
            </FormItem>
            <FormItem>
                <Template>
                    <label class="k-label k-form-label" for="eanList">From a list of EANs</label>
                    <TelerikTextArea Id="eanList"
                                     @bind-Value="@ViewModel.EanList"
                                     AutoSize="true">
                    </TelerikTextArea>
                </Template>
            </FormItem>
        </FormGroup>
        <FormItem ColSpan="2">
            <Template>
                @*<br />*@
                <label class="k-label k-form-label" for="comment">Comments</label>
                <TelerikTextArea Id="comment"
                                 @bind-Value="@model.Comment"
                                 AutoSize="true">

                </TelerikTextArea>
            </Template>
        </FormItem>
        <ValidationSummary />
    </FormItems>
    <FormButtons>
        <TelerikButton ButtonType="ButtonType.Button" OnClick="OnCancel">Cancel</TelerikButton>
        <TelerikButton ButtonType="ButtonType.Submit" Primary="true">Save</TelerikButton>
    </FormButtons>
</TelerikForm>

[Marin Bratanov]

Hi Marc,

The Field of the FormItem is only necessary if you will be using the built-in editor it will generate, so it can know what to do. If you will be using the Template to @bind your own editor, you don't have to set the Field parameter of the FormItem. 

I have also added this bit of info to the docs (commit link, to be live with our next upload).

Regards,
Marin Bratanov
Progress Telerik