The DataGrid Enum Filter not working for OData

[sabatex]

A Blazor WASM project using an OData provider does not work correctly with Enum data, namely setting the OData filter as enumValue='1'. After changing the selector type from int to string, the OData filter changed to enumValue='Red' and everything worked perfectly. No testing was done for ServerSide.

Changed files:

1. Extensions.cs

public static IEnumerable<object> EnumAsKeyValuePair(Type enumType)
{
    return Enum.GetValues(enumType).Cast<Enum>().Distinct().Select(val => new { Value = **val.ToString()**, Text = val.GetDisplayDescription() });
}

2. QueryableExtensions.cs

                else if (PropertyAccess.IsEnum(column.FilterPropertyType) || PropertyAccess.IsNullableEnum(column.FilterPropertyType))
                    {
                        if (v != null)
                        {
                            value = **v.ToString()**;
                        }
                        if (sv != null)
                        {
                            secondValue = **sv.ToString()**;
                        }
                    }

Fork

[enchev]

Hey @sabatex,

You might need to check this thread: OData/AspNetCoreOData#422 - in short you will need StringAsEnumResolver.

[sabatex]

I fixed the enum issue for OData query and tested for a real project. These changes do not change the default logic. After these changes, work fine with OData EDM by default after set EnumKeyAsSymbols = true. Small changes to files (Extensions, QueryableExtension) are required. My last Commit is in fork.