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  • Passing Null Variable to BLL then DAL in Multi Tiers Web App

    I am working on further breaking down the tiers of a search function in a web application. Currently the app has 3 layers. Presentation > BLL > Database Right now the presentation form gather a list of parameters from a form and pass it to the BLL, and the BLL logic create a SQL command and pass...
    Posted to Data Access and ObjectDataSource Control (Forum) by andyyew on 04-28-2009, 12:00 AM
    Filed under: ADO.NET 2.0, asp .NET 2.0, BLL, BLL DAL Tier Separation, Database

  • How many parameters are too many? Getting error: cannot obtain value

    I'm still working on making a Business Logic Layer (BLL) to process updates sent to my database, and I've encountered an error where my datatable row object displays "error: cannot obtain value" instead of the values that are being passed to it. Stepping through the code verifies that...
    Posted to Data Access and ObjectDataSource Control (Forum) by SirPaladin1969 on 02-14-2009, 12:00 AM
    Filed under: parameters, BLL, business layer

  • What to do (Help) - Entity and Busines Logic Layer

    Hi Guys, Just got my head around EF but cant find/understand how best to structure/apply the linq to entity and my business logic, if I have a table called Clients (id, name, stamp) and therefore an entity called Client I want to display that on page but need to apply some business logic such as filer...
    Posted to Architecture (Forum) by monkeylee on 02-10-2009, 12:00 AM
    Filed under: structure, bll, business logic, entity, api, model

  • Re: Error: ObjectDataSource could not find a non-generic method

    Finally, I've discovered an answer! After 2 days scratching my head, reading the forum and countless blogs; just before pitching this laptop into the street, I figured it out. My application goes against a SQL Server 2005 database with a Data Access Layer (DAL) using SQL statements. A Business Logic...
    Posted to Data Access and ObjectDataSource Control (Forum) by PretzeLogic on 01-31-2009, 12:00 AM
    Filed under: optimistic concurrency, BLL Data 3 tiers business logic DAL ObjectDataSource sql connection, Concurreny, 3.5, BLL

  • Need help writing BLL to work with MySQL

    I know this must seem very basic, but following the tutorials step-by-step has not worked in creating a Business Logic Layer (BLL), and it's hard to proceed without it. I don't know if the reason the tutorial's steps aren't working is because I'm using MySQL instead of SQL Server...
    Posted to Getting Started (Forum) by SirPaladin1969 on 01-29-2009, 12:00 AM
    Filed under: BLL, business layer

  • Creating a Working Business Logic Layer with MySQL

    ***Moderator. Please do not delete this post again. It is NOT a repeat. You deleted my original posts, so now no other exists.*** I need help creating a Business Logic Layer (BLL) using Visual Studio 2005 Pro with MySQL 5.1 as my database. I've tried without success to follow the tutorials step-by...
    Posted to Data Access and ObjectDataSource Control (Forum) by SirPaladin1969 on 01-27-2009, 12:00 AM
    Filed under: business layer, layered approach, BLL

  • Creating a working Business Logic Layer (BLL)

    Please. I need help creating a Business Logic Layer (BLL) using Visual Studio 2005 Pro with MySQL 5.1 as my database. I've tried without success to follow the tutorials step-by-step, but apparently they are not correct. Perhaps it is because I'm using MySQL, but regardless, I need to create a...
    Posted to Data Access and ObjectDataSource Control (Forum) by SirPaladin1969 on 01-27-2009, 12:00 AM
    Filed under: n-tier application, business layer, business logic layer, BLL

  • Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.

    Hi, I get this error when calling a Get command from a Dataset like so: Gridview1.DataSource = tableAdapter.GetData(Param.ToString()); The error happens on one stored procedure but not another, both only return data with no ID columns. I am returning a SQL datetime and two Varchar values that are inserted...
    Posted to Data Access and ObjectDataSource Control (Forum) by Cohen Asaf on 12-10-2008, 12:00 AM
    Filed under: adapter, asp.net 2.0 dataset connectionstring configuration, BLL DAL Tier Separation, BLL Data 3 tiers business logic DAL ObjectDataSource sql connection, data accesss layer, Dataset return problem, dataset return values bll, DataSets, DataTable.GetError, xsd, BLL, constraint

  • BLL List Type Conversion (From Class To CascadingDropDownNameValue)

    I have a DAL and BLL developed based on thebeerhouse project.and one of my methods in the BLL is GetCountries() which links to the DAL stored procedure and returns a List Of the Country Class which contains Country.id and Country.Name I want to call this method in my locations webservice method GetCountries...
    Posted to Getting Started (Forum) by infinitep on 11-24-2008, 12:00 AM
    Filed under: BLL, class, list, CascadingDropDownNameValue, conversion

  • ObjectDataSource

    Hello all.. i have a problem where when i go to configure my ObjectDataSource, none of my business objects have populated the dropdown of the choose business object page of the wizard... i am usinb a DAL, BLL pres layer 3tier configation... i have used this aprroach before in a tutorial with no problems...
    Posted to Data Access and ObjectDataSource Control (Forum) by Stumagoo on 10-11-2008, 12:00 AM
    Filed under: object data source, objectdatasource gridview datatable, ObjectDataSource GridView Update SqlDataSource, bll business layer objects, BLL DAL Login Membership SQL Express, BLL DAL Tier Separation, BLL Data 3 tiers business logic DAL ObjectDataSource sql connection, DAL, DAL Provider Interfaces, data Acces, Data Access, Data Access Application block, data access Application block output parameters return values, Data Access ASP.net vs. ASP, Data Access Layer, data accesss layer, data accesss layer dynamic sql datasource oracle datasource sqlconnection oracleconnection asp.net flexible, BLL, DAL UI, Data Access and ObjectDataSource Control, Data Access connections, data Access data management ado.net xml dataset datatable best choice manage
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