System.ArgumentException: An item with the same key has already been added.
at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at System.Data.Linq.DataContext.GetTable(MetaTable metaTable)
at System.Data.Linq.SqlClient.Translator.TranslateLink(SqlLink link, List`1 keyExpressions, Boolean asExpression)
at System.Data.Linq.SqlClient.SqlBinder.Visitor.ConvertToFetchedExpression(SqlNode node)
at System.Data.Linq.SqlClient.SqlBinder.Visitor.VisitLink(SqlLink link)
at System.Data.Linq.SqlClient.SqlVisitor.Visit(SqlNode node)
at System.Data.Linq.SqlClient.SqlBinder.Visitor.VisitExpression(SqlExpression expr)
at System.Data.Linq.SqlClient.SqlBinder.Visitor.VisitNew(SqlNew sox)
at System.Data.Linq.SqlClient.SqlVisitor.Visit(SqlNode node)
at System.Data.Linq.SqlClient.SqlBinder.Visitor.VisitExpression(SqlExpression expr)
at System.Data.Linq.SqlClient.SqlBinder.Visitor.VisitSelect(SqlSelect select)
at System.Data.Linq.SqlClient.SqlVisitor.Visit(SqlNode node)
at System.Data.Linq.SqlClient.SqlBinder.Visitor.VisitAlias(SqlAlias a)
at System.Data.Linq.SqlClient.SqlVisitor.Visit(SqlNode node)
at System.Data.Linq.SqlClient.SqlVisitor.VisitSource(SqlSource source)
at System.Data.Linq.SqlClient.SqlBinder.Visitor.VisitSelect(SqlSelect select)
at System.Data.Linq.SqlClient.SqlVisitor.Visit(SqlNode node)
at System.Data.Linq.SqlClient.SqlBinder.Visitor.VisitIncludeScope(SqlIncludeScope scope)
at System.Data.Linq.SqlClient.SqlVisitor.Visit(SqlNode node)
at System.Data.Linq.SqlClient.SqlProvider.BuildQuery(ResultShape resultShape, Type resultType, SqlNode node, ReadOnlyCollection`1 parentParameters, SqlNodeAnnotations annotations)
at System.Data.Linq.SqlClient.SqlProvider.BuildQuery(Expression query, SqlNodeAnnotations annotations)
at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Compile(Expression query)
at System.Data.Linq.CommonDataServices.DeferredSourceFactory`1.ExecuteKeyQuery(Object[] keyValues)
at System.Data.Linq.CommonDataServices.DeferredSourceFactory`1.Execute(Object instance)
at System.Data.Linq.EntitySet`1.Load()
at System.Data.Linq.EntitySet`1.get_Count()
at CompiledRazorTemplates.Dynamic.eacffdacceba.Execute()
at RazorEngine.Templating.TemplateBase.Run(ExecuteContext context)
at System.Web.Mvc.HtmlTemplateBase`1.Run(ExecuteContext context)
at CMS.Core.ITemplateExtensions.Run[T](ITemplate template, T Model)
at CMS.Core.ITemplateExtensions.Parse[T](String template, T Model)

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.

Visit Website
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)); 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

Download Mobile App

About AUTHORS.COM.BD

authors.com.bd is a Website featuring authors of Bangla literature, past and present. Every author has their own home page on authors.com.bd, with list of books and publishers who published their books. authors.com.bd is a part of Publishers E-Platform, a national repository & archive of pubishers, authors & books. authors.com.bd has been Developed and hosted by Alpha Net, leading Web Hosting & Domain Registration Company in Bangladesh.

Stay Informed of News & Events