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at System.Data.Linq.IdentityManager.StandardIdentityManager.Find(MetaType type, Object[] keyValues)
at System.Data.Linq.CommonDataServices.DeferredSourceFactory`1.TryGetCachedObject(Object[] keyValues, T& cached)
at System.Data.Linq.CommonDataServices.DeferredSourceFactory`1.Execute(Object instance)
at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
at System.Data.Linq.EntityRef`1.get_Entity()
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at RazorEngine.Templating.TemplateBase.Run(ExecuteContext context)
at System.Web.Mvc.HtmlTemplateBase`1.Run(ExecuteContext context)
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Low-Cost Masking/NonMasking SMS in Bangladesh - Alpha SMS

Alpha SMS is an advanced SMS service provider in Bangladesh with multiple services such as Bulk SMS, SMS API, OTP SMS, SMS Gateway, SMS Marketing, Masking SMS, Non-Masking, etc. It provides a powerful and easy-to-use SMS API for developers. Easy integration with Software Applications & Websites. You can also send SMS messages directly through SMS Web Panel (Dashboard). Fast and easy to use SMS Gateway for School, Small Business SMS marketing, ISP & NGO in Bangladesh. Alpha SMS also offers API Integration with Corporate applications.

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Low-Cost Masking/NonMasking SMS in Bangladesh - Alpha SMS

Popular Authors

@{ var db = ERP.Data.DBContext.Current; var authors = db.Party.Active().Where(p => p.TypeId == 1017 && db.PartyProduct.Any(i => i.PartyId == p.Id));} @foreach (var item in authors.OrderByDescending(i => i.RelatedProducts.Count(j => j.TypeId == 1012)).Take(9).Skip(1)) { }
Error:
Value cannot be null.
Parameter name: writer
@{ var db = ERP.Data.DBContext.Current; var authors = db.Party.Active().Where(p => p.TypeId == 1017 && db.PartyProduct.Any(i => i.PartyId == p.Id)); var books = ERP.Data.DBContext.Current.Product.Active(); }

A National Archive of Information

@ERP.Data.Service.BusinessService.ByType("Publisher").Count()

Publishers

Featuring complete portfolio & virtual showroom of @ERP.Data.Service.BusinessService.ByType("Publisher").Count() active Publishers in Bangladesh.

@authors.Count().ToString("#,###")

Authors

Portfolio of an ever growing list of legends. About @authors.Count().ToString("#,###") Bengali authors & Poets of the past, present & future.

@books.Count().ToString("#,###")

Books

A complete online catalog of Bangla books. From the everlasting classics to modern literature of the future generation.

Error:
Value cannot be null.
Parameter name: writer