SQL Server :: Generate A Sequential Auto Generated Id In C#?

Feb 22, 2011

I wanna generate a sequential auto generated id in c# and store it in mssql database.

format is abc0009.. abc0010.. abc9999.... abc10000 abc10001 and goes on..

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MVC :: Can't Modify Auto-generated Files With Dataannotations

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Split off from http://forums.asp.net/t/1654957.aspx/1?Validation+in+MVC+using+JQUERY+OR+JAVASCRIPT. Start new questions in a new thread.

Hey thanks a lot!!!

The following link worked fine http://geekswithblogs.net/stun/archive/2010/02/27/asp.net-mvc-client-side-validation-summary-with-jquery-validation-plugin.aspx

However, I am Having one other problem. There are four solutions in my project. All my controllers and Views are declared in the Presentation solution. There are auto-generated class files in the solution named DomainModel. So, my views inherits these auto-generated files from the DomainModel solution. The problem is that I can't modify these auto-generated files by using Data Annotations in there. Hence, cannot accomplish my validation. I tried by creating partial classes but no result. By creating a class file in my Presentation solution and then binding it with the view the validation works fine. But my views are binded with the class files (auto-generated) from the DomainModel.

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C# - Adding DataAnnotations To Auto Generated DBML Class?

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i'm worried about doing this since my changes will be overwritten when the dbml file is auto generated again (as they often are).

i'm thinking of doing a partial class and writing out the same properties to annotate them, but worried that it will complain about duplicates, and the reason i can't even experiment brings me to the second part of my questions...

... that, the expandable arrow on my dbml file listing is missing, right clicking and selecting "View Code" just displays an empty partial class as below...

Partial Class FPDataContext
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I'm using VS2010 RC and am just developing an MVC 2.0 app where i want to be able to use the UI Annotations such as [UIHint("RelativeDateTime")]


here is my VB version edit as an example...

Imports System.ComponentModel.DataAnnotations
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DataSource Controls :: How To Get Customized Auto Generated ID In Sqlserver

Jun 24, 2010

I am using Sqlserver2008.

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C# - Fluent NHibernate Many-to-many Mapping With Auto-generated Pk Instead Of Composite Key?

Feb 2, 2010

I'm working on a RoleProvider in .NET, using Fluent NHibernate to map tables in an Oracle 9.2 database.

The problem is that the many-to-many table connecting users and roles uses a primary key generated from a sequence, as opposed to a composite key. I can't really change this, because I'm writing it to be implemented in a larger existing system.

Here is my UserMap:

public UserMap()

Yet, this is giving me the error:

Type 'FluentNHibernate.Cfg.FluentConfigurationException' in assembly 'FluentNHibernate, Version=, Culture=neutral, PublicKeyToken=8aa435e3cb308880' is not marked as serializable.

Is there a simple fix to allow this HasMayToMany to use my PersistentObjectMap extension? I'm thinking I may have to add a convention for this many-to-many relationship, but I don't know where to start with that, since I've just started using NHibernate and Fluent NHibernate only recently.

EDIT: I think I've found a possible solution here: http://marekblotny.blogspot.com/2009/02/fluent-nhbernate-and-collections.html

I'll try the above method of creating an entity and a class map for the linking table and post my findings.

EDIT 2: I created a linking entity as mentioned in the above blog post and downloaded the newest binaries (
This helped me discover that the issue was with setting lazy load and trying to add roles to the user object in a completely new session.

I modified the code to move OpenSession to the BeginRequest of an HttpModule as described here. After doing this, I changed my data access code from wrapping the open session in a using statement, which closes the session when it is finished, to getting the current session and wrapping only the transaction in a using statement.

This seems to have resolved the bulk of my issue, but I am now getting an error that says "Could not insert collection" into the USR_ROLE table. And I'm wondering if the above code should work with a UserRoleMap described as:

public UserRoleMap()
this.Table("USR_ROLE"); [code]....

Hibernate's documentation for many-to-many relationship suggests creating an object to maintain a one-to-many/many-to-one, as in an ERD. I'm sure this would be much easier with conventional naming standards, but I have to stick with certain abbreviations and odd (and not always properly-implemented) conventions.

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MVC :: How To Inject Auto-generated Code Into Views Via Partial Classes

Sep 16, 2010

I have written a t4 template that basically replaces the work done by StronglyTypedResourceBuilder to give design time access to string resources as properties of classes, one class per resource file. Why? Well I needed to add some customer code that handles string token substitution and a few other customizations. Anyway, the template is working out really well and I may blog on it soon.

In the mean time though, following a common pattern, I have one .resx file for each view, master page, controller, etc. I would really like my t4 template to add a property to each such entity that gives quick access the custom resource class associated with it. For controllers this is easy. T4MVC is ensuring that they are a all declared partial. All I need to do is create the appropriate partial class in my output that declares a readonly property that returns an instance of the appropriate generated resource class.

The Problem:

I would like to do the same thing, inject generated code, into my views. Were this traditional ASP.Net, each .aspx page would have a .aspx.cs page and possibly an .aspx.designer.cs page that are all partial classes extending in the aspx page's class definition. There is no such thing by default in MVC and for good reason. However, I think for my purposes, if there is a way to do this, it would be the way to go.

I could subclass ViewPage and add a generic type parameter and a property that returns the class of that type but that has certain complications. I think adding auto generated code to each view via partial class (that is what partials are for after all) is the way to go.

I have made a basic attempt. I have created a .aspx.cs file for a view and placed a code behind attribute in the page declaration but the class generated from the view seems to reside in a different assembly any my "partial class" ends up as its own class in the same assembly as all my other code.

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Prevent HTML Encoding In Auto Generated GridView Columns?

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How can I avoid this without explicitly adding HyperLink, or any other, columns?

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Auto-generate A Web.config File?

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