.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

sample code for a login control talking to the entity framework

Posted By:      Posted Date: September 25, 2010    Points: 0   Category :ASP.Net

apologies as i am new to the Entity Framework

i have a web-site which uses forms based authentication. thus i have a login page with a login control on it. how would i go about coding the authenticate event of this control to talk to the Entity Framework to validate the user credentials?


any help or sample code (preferably in VB) gratefully appreciated 



View Complete Post

More Related Resource Links

Refresh CollectionViewSource (Entity Framework) bound control

I can't believe I can't find an answer to this... I've created Entity Framework models generated from DB (SQL Server CE) I dragged an Entity from Data Sources to my MainWindow, automagically creating this XAML: <Window.Resources>     <CollectionViewSource x:Key="contentItemsViewSource" d:DesignSource="{d:DesignInstance my:ContentItem, CreateList=True}" /> </Window.Resources> <Grid DataContext="{StaticResource contentItemsViewSource}">     <DataGrid AutoGenerateColumns="False" EnableRowVirtualization="True" Height="Auto" HorizontalAlignment="Stretch" ItemsSource="{Binding}" Margin="0,22" Name="contentItemsDataGrid" RowDetailsVisibilityMode="VisibleWhenSelected" VerticalAlignment="Stretch" Width="Auto" DataContext="{Binding}" IsReadOnly="True" CanUserResizeRows="False">         <DataGrid.Columns>             <DataGridTextColumn x:Name="idColumn" Binding="{Binding Path=Id}" Header="Id" Width="SizeToHeader" Visibility="Hidden" />             <DataGridTex

how can I get the same nerddinner.Entities as mvc sample nerddinner using ADO.NET Entity Framework


DbClick the code behind file of NerdDiner.edmx,It reads "This code was generated from a template." on the top comment lines.

I generate my own .edmx  file automatically with VS2010, just found that the .designer.cs file didnt contains Objectset,Methods as nerddinner does

IDK which template hanselman used to generate this .edmx files,dont tell me he wrote it all by himself!

Shoud .edmx and its code behind file be generated automaticlly without hard-coding?

Dynamic Data using Code First Entity Framework Model


I have used Dynamic Data before using LinqToEntity where my Entity model used the Data First model and the GUI.  Now I am trying to use the Code First model witht he Entity CTP 4.  I have my model created and created a new Dynamic Data site.  I read that I need to replace the default RegisterContext call:

DefaultModel.RegisterContext(typeof(PriceLoaderContext), new ContextConfiguration() { ScaffoldAllTables = true });


DefaultModel.RegisterContext(new DomainModelProvider(typeof(PriceLoaderContext)), new ContextConfiguration() { ScaffoldAllTables = true }); 

When I search further on DomainModelProvider, I find that it is part of the WCF RIA. Is this correct? Is this what I need for this to work? Has anyone else done this and got it to work?


Data Points: Entity Framework Preview: code first, ObjectSet and DbContext


With the code first feature in Entity Framework, there is no visual data model and no XML describing that model. You simply create the classes for your application domain and go. We'll show you this and several other nifty new features in the latest EF CTP.

Julie Lerman

MSDN Magazine October 2010

RC of Entity Framework 4.1 (which includes EF Code First)

Last week the data team shipped the Release Candidate of Entity Framework 4.1.  You can learn more about it and download it here . EF 4.1 includes the new "EF Code First" option that I've blogged about several times in the past.  EF Code First provides a really elegant and clean way to work with data, and enables you to do so without requiring a designer or XML mapping file.  Below are links to some tutorials I've written in the past about it: Code First Development with Entity Framework 4.x EF Code First: Custom Database Schema Mapping Using EF Code First with an Existing Database The above tutorials were written against the CTP4 release of EF Code First (and so some APIs might be a little different) - but the concepts and scenarios...(read more)

Entity Framework: Code First in the ADO.NET Entity Framework 4.1


The latest version of the Entity Framework includes two new main features: the DbContext API and the Code First development pattern. We show you how to use these to develop applications, starting with the basics and moving on to more advanced techniques.

Rowan Miller

MSDN Magazine May 2011

Multiple database support with Entity Framework

One of the features introduced in Entity Framework is being database independent. Which mean each database provider can support Entity Framework by implementing its provider.

This feature allows you build applications independent from the underplaying database provider. In this post I'm going to show how to build an application that support multiple databases using same conceptual model made by Entity Framework.

Creating a Generic Entity Framework 4.0 Repository

With .NET 4.0 right around the corner, I thought it would be cool to download Visual Studio 2010 beta 2 and start playing around with the next release of Entity Framework.

The initial release of Entity Framework came with a great deal of criticism. To make matters worse, there was a large uproar when it was rumored that Microsoft would be abandoning LINQ to SQL, in favor of Entity Framework. This was because, at the time, many developers felt Entity Framework was an inferior technology to LINQ to SQL. To set things right, Microsoft proactively moved forward with improving Entity Framework, in time for the 4.0 release of the .NET Framework. This is good news because my initial impressions, so far, have been nothing but positive.

ASP.NET 4.0 Dynamic Data and Many to Many Entity Framework Entities

I did not play much with Dynamic Data controls in VS2008 and just made a cool discovery in VS2010 Beta 2. This may not even be new, but as I'm sitting 30,000+ feet over the Atlantic ocean, I don't have access to VS2008 at the moment to check.

Entity Framework 4 Tips for WinForms Development

I've been recently working on a smart client (WinForms) application backed by Entitiy Framework 4 (EF4) on Visual Studio 2010. In this blog post I will try to give you some tips regarding some limitations and points to be careful about EF4.

Bar Code Scanners with the .NET Compact Framework

Summary: Learn how to make your applications use bar code scanners in a generic way-ndependent of the specific bar code scanners that are used on different devices. Using the design patterns Façade and Factory, the implementation not only supports multiple bar code scanners, but it also makes it easy to add support for other bar code scanners. After a brief discussion about bar code scanners and the bar code scanner pattern, a download code sample, written in C#, demonstrates the use of the pattern and technologies.

How to modify the login control



I'd like to record more information than the default control allows as well as perform actions with the input when the form is submitted but I'm having trouble figuring out how.

So firstly, if I want to record the middlename for example, how would I do that, and by default, where would it go if anywhere?
When the form is submitted, I'd like to take specific input, such as just the middlename for example, and write some linq to sql code to specify when and how it's stored.
In what event would I put this code?


Data accessors or Entity framework


The entlib 5 sugest me to use with data accessors for mapping data from database to my data objects (ORM).

But in .NET 3.5 and especially in .NET 4, I can use in entity framework as ORM methodology for data objects.

What data accessors uses advantages over the entity framework?

What differences that should be affect on my using decisions?

The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>)


Hey guys

I came across this bug using while trying to implement a sitemap

Line 147:						Panel panel = new Panel();
Line 148:						panel.Controls.Add(_viewState);
Line 149:						Page.Form.Controls.Add(panel);
Line 150:						string script = "document.getElementById('" + _viewState.ClientID + "').value = GetViewState__AspNetTreeView('" + Extender.MakeChildId("UL") + "');";
Line 151:						Page.ClientScript.RegisterOnSubmitStatement(typeof(TreeViewAdapter), _viewState.ClientID, script);

[HttpException (0x80004005): The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).]
   System.Web.UI.ControlCollection.Add(Control child) +8696951
   CSSFriendly.TreeViewAdapter.SaveAdapterViewState() in E:\wwwroot\ThirdParty\CSSFriendly\CSSFriendly_24242\CSSFriendly\TreeViewAdapter.cs:149
   System.Web.UI.Control.SaveViewStateRecursive(ViewStateMode inheritedMode) +8901848
   System.Web.UI.Control.SaveViewStateRecursive(ViewStateMode inheritedMode) +148
   System.Web.UI.Control.SaveViewStateRecursive(ViewStateMode inheritedMode) +148
   System.Web.UI.Control.SaveViewStateRecursive(ViewStateMode inheritedMode) +148

How to install the Css Friendly Control Adapter Source Code


Hi guys really new to ASP.NET I was trying to install the CSS Friendly control adapter but for some reason the instructions on the website seems outdated. I downloaded all the files (Source Code, DLL, Browser) I believe I need to add the DLL file to my website's Bin folder and the Browser file to the APP_Browsers folder is this correct? After I place this files how to I get it working? what do I have to do?

Also if I want to create a new DLL file from the Source code how do I do these? I opened the web-site with Visual Studio 2008 and I can see all the files in the solution explorer? But how do I compile this to a DLL file? I tried doing a build solution but all I get is an .sln file???

Any help would be greatly appreciated

Thanks in advance


Data Points: Deny Table Access to the Entity Framework Without Causing a Mutiny


Julie Lerman shows database administrators how to limit access to databases from the Entity Framework by allowing it to work only with views and stored procedures instead of tables-without impacting application code or alienating developers.

Julie Lerman

MSDN Magazine August 2010

VS 2010: Entity Framework 4.0 and WCF Data Services 4.0 in Visual Studio 2010


Elisa Flasko takes you through a sample weblog application to demonstrate how new improvements in Entity Framework and WCF Data Services work together to simplify the way data is modeled, consumed and produced in Visual Studio 2010.

Elisa Flasko

MSDN Magazine April 2010

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend