based on example code Blazor DataGrid enum filtering
@using System.Linq.Dynamic.Core
@using System.ComponentModel.DataAnnotations
<RadzenDataGrid LoadData="LoadData" FilterMode="FilterMode.Simple" IsLoading=@isLoading Count="count" Data=@employees AllowFiltering="true" AllowPaging="true" AllowSorting="true" AllowColumnResize="true" TItem="Employee" ColumnWidth="200px">
<Columns>
<RadzenDataGridColumn TItem="Employee" Property="ID" Title="ID" />
<RadzenDataGridColumn TItem="Employee" Property="Gender" Title="Gender" Width="80px" />
<RadzenDataGridColumn TItem="Employee" Property="Status" Title="Nullable Status" />
<RadzenDataGridColumn TItem="Employee" Property="Color" Title="Favorite Color (Display Attribute in Filter)" />
</Columns>
</RadzenDataGrid>
@code {
int count;
IEnumerable<Employee> initialEmployees;
IEnumerable<Employee> employees;
bool isLoading = false;
public class Employee
{
public int ID { get; set; }
public GenderType Gender { get; set; }
public StatusType? Status { get; set; }
public ColorType Color { get; set; }
}
public enum GenderType
{
Ms,
Mr,
Unknown,
}
public enum ColorType
{
Red,
Green,
Blue,
[Display(Description = "Almond Green")]
AlmondGreen,
[Display(Description = "Amber Gray")]
AmberGray,
[Display(Description = "Apple Blue... ")]
AppleBlueSeaGreen,
//[Display(Description = "Miss", ResourceType = typeof(ResourceFile)] localization example
[Display(Description = "Azure")]
AzureBlue,
}
public enum StatusType
{
Inactive,
Active,
}
protected override void OnInitialized()
{
initialEmployees = Enumerable.Range(0, 10).Select(i =>
new Employee
{
ID = i,
Gender = i < 3 ? GenderType.Mr : i < 6 ? GenderType.Ms : GenderType.Unknown,
Status = i < 3 ? StatusType.Active : i < 6 ? StatusType.Inactive : null,
Color = i < 2 ? ColorType.Red: i < 4 ? ColorType.AlmondGreen : i < 6 ? ColorType.AppleBlueSeaGreen : ColorType.AzureBlue,
});
}
void LoadData(LoadDataArgs args)
{
isLoading = true;
var query = initialEmployees.AsQueryable();
if (!string.IsNullOrEmpty(args.Filter))
{
query = query.Where(args.Filter);
}
if (!string.IsNullOrEmpty(args.OrderBy))
{
query = query.OrderBy(args.OrderBy);
}
count = query.Count();
employees = query.Skip(args.Skip.Value).Take(args.Top.Value).ToList();
isLoading = false;
}
}
Possible Solution:
Remove element
<label class="rz-cell-filter-label" style="height:35px" onclick="event.preventDefault()>
with enum dropdown
