We are using ABP controller. We tried with UnitOfWork also. Still facing issues.
At the same time, excel data import process also having issues.
/Action Method [HttpGet] public JsonResult List(DataSourceLoadOptions options) { var data = _countryAppService.GetPage(options); return Json(data); }
//Service Layer public LoadResult GetPage(DataSourceLoadOptionsBase options) { var query = _countryRepository.GetAll() .Select(s => new CountryListDto { Id = s.Id, Name = s.Name, }); return DataSourceLoader.Load(query, options); } }
//Cshtml @(Html.DevExtreme().DataGrid<TSolve.Countries.Dto.CountryListDto>() .ID("CountryList") .ShowBorders(true) .AllowColumnReordering(true) .DataSource(d => d.Mvc() .Controller("Country") .LoadAction("List") .UpdateAction("Put") .Key("id") .DeleteAction("Delete")) .Editing(editing => { editing.Mode(GridEditMode.Batch); editing.AllowDeleting(true); editing.AllowUpdating(true); editing.UseIcons(true); }) .Columns(columns => { columns.AddFor(m => m.Name);
columns.Add().Type(GridCommandColumnType.Buttons)
.Buttons(b =>
{
b.Add().Icon("edit").OnClick("function(e) { countryAddEdit.showModel(e, countryList.refreshList); }");
b.Add().Name(GridColumnButtonName.Delete);
});
})
.Paging(p => p.PageSize(10))
.FilterRow(f => f.Visible(true))
.HeaderFilter(f => f.Visible(true))
.RemoteOperations(true)
)
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Now we are facing issue with DevExpress grid controls with ASP.NET Zero. We created API and it is fetching the data as json. We could not pass the data to the DevExpress Grid control. The same functionality is working well with DevExpress and .NET without ASP.NET Zero.
ASP.NET Zero is giving problem to us. I am sharing the error below. We need right solution for this to use ASP.Net Zero wiht DevExpress Grid controls and other controls.
System.ObjectDisposedException: Cannot access a disposed context instance. A common cause of this error is disposing a context instance that was resolved from dependency injection and then later trying to use the same context instance elsewhere in your application. This may occur if you are calling 'Dispose' on the context instance, or wrapping it in a using statement. If you are using dependency injection, you should let the dependency injection container take care of disposing context instances. Object name: 'TSolveDbContext'. at Microsoft.EntityFrameworkCore.DbContext.CheckDisposed() at Microsoft.EntityFrameworkCore.DbContext.get_InternalServiceProvider() at Microsoft.EntityFrameworkCore.DbContext.get_ChangeTracker() at Microsoft.EntityFrameworkCore.Query.CompiledQueryCacheKeyGenerator.GenerateCacheKeyCore(Expression query, Boolean async) at Microsoft.EntityFrameworkCore.Query.RelationalCompiledQueryCacheKeyGenerator.GenerateCacheKeyCore(Expression query, Boolean async) at Microsoft.EntityFrameworkCore.SqlServer.Query.Internal.SqlServerCompiledQueryCacheKeyGenerator.GenerateCacheKey(Expression query, Boolean async) at Microsoft.EntityFrameworkCore.Query.Internal.QueryCompiler.Execute[TResult](Expression query) at Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryable`1.System.Collections.IEnumerable.GetEnumerator() at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeList(JsonWriter writer, IEnumerable values, JsonArrayContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject(JsonWriter writer, Object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize(JsonWriter jsonWriter, Object value, Type objectType) at Newtonsoft.Json.JsonSerializer.SerializeInternal(JsonWriter jsonWriter, Object value, Type objectType) at Newtonsoft.Json.JsonSerializer.Serialize(JsonWriter jsonWriter, Object value) at Microsoft.AspNetCore.Mvc.NewtonsoftJson.NewtonsoftJsonResultExecutor.ExecuteAsync(ActionContext context, JsonResult result) at Microsoft.AspNetCore.Mvc.NewtonsoftJson.NewtonsoftJsonResultExecutor.ExecuteAsync(ActionContext context, JsonResult result) at Microsoft.AspNetCore.Mvc.NewtonsoftJson.NewtonsoftJsonResultExecutor.ExecuteAsync(ActionContext context, JsonResult result) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.