Access :: Data Access Class / Helper Class For Access Databases?

Mar 15, 2011

recommend a data access class / helper class for Access databases, similar to the sqlhelper class found in the (Data Access Application Block)?

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Since we can access the private data member of base class in the derived class with the help of friend function. How can we do the same in C# I mean whats the alternative of friend function in C#

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How To Access Label In Parent Class Of Code Behind Class

May 24, 2010

I have a class (name PageBase) that is inhariting System .Web.UI .Page and all my .aspx page behind classes are inhariting this class. This way I have put some common things in PageBase class.

For showing errors I want to put showMessage funtion in PageBase as well so that I may have not put it in every page and it will easy to manage this way.

Probem is that how PageBase class will access a control which is in aspx page in its child class (child class of PageBase) .

I dont want to pass control as argument to function in parent class, is ther any other way ?

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What I want is a Generic Data Access Class. I have seen several of them but what I want is to see one that I pass the Connection String and the SQL statement and it will return a List of Objects or when only one item an Object or when no response needed a boolean to let me know if it succeeded?

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Tool To Generate Data Access Class In VS 2008?

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C# - Substitute For Microsoft Data Access ApplicationBlocks Obsolete SqlHelper Class?

Dec 16, 2010

It looks that the old SqlHelper class from the Microsoft Enterprise Library has been mostly replaced by the Database class which is included in the new Enterprise Library version 5.

I have a very simple and trivial example:
using Microsoft.ApplicationBlocks.Data;
private void PopulateCheckBoxGroup()
const string strConnTxt = "Server=(local);Database=DataBindTests;Integrated Security=True;";
const string strlSql = "select Technology from PreferredTechnology where ParentId = 1";
CheckBoxList1.DataSource = SqlHelper.ExecuteReader(strConnTxt, CommandType.Text, strlSql);
CheckBoxList1.DataTextField = "Technology";

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Forms Data Controls :: Access A Method Of Entity Class From A FormView?

Feb 24, 2010

I have a Customer database table with a text field named customerPicture with the name of the JPG file.

I have made a Customer Entity class with the LinQ to SQL Designer.

I also have a FormView displaying Customer instance binding with a LinqDataSource.

My problem is:

I want to make some modifications when some control want to bind the customerPicture field.

For example, when my FromView want to show the field customerPicture I want to return not only the JPG file name, I want to modify this string to add the complete file path and perhaps resample the image to a determinate width and height.

I know that is posible to defeine a partial class named Customer to implement certains partial methods, like OnCustomerPictureChanged(), but I dont know how to do this.

If I make, in this Customer partial class, a new method, for example getResamplePicturePath(), how could I invoke it from a FormView?

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How To Pass FormsAuthentication.SetAuthCookie From Data Access Layer Class To WebService To JavaScript

Jan 29, 2010

I am using DotNetOpenAuth in my ASP.Net Website. I have modified it to work with Facebook Connect as well, using the same methods and database structures. Now I have come across a problem.

I have added a Facebook Connect button to a login page. From that HTML button, I have to somehow pull information from the Facebook Connect connection and pass it into a method to authenticate the user. The way I am currently doing this is by:

Calling a Javascript Function on the onlogin function of the FBML/HTML Facebook Connect button. The javascript function calls a Web service to login, which it does correctly. The web service calls my data access layer to login. And here is the problem: FormsAuthentication.SetAuthCookie is set at the data access layer. The Cookie is beyond the scope of the user's page and therefore is not set in the browser. This means that the user is authenticated, but the user's browser is never notified. So, I need to figure out if this is a bad way of doing what I need or if there is a better way to accomplish what I need. I am just not sure and have been trying to find answers for hours.

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WCF / ASMX :: Class Library For Service (ServiceLibrary) To Access Data Form Database?

Jan 11, 2011

I created a Class library for WCS service (MyWCFServiceLibrary) to access data form my database. The database connection strings have been defined in Properties->Settings.settings. The endpoints are defined in the app.config. Tracing and logging is set to write to files on local server. This service is hosted by a .net web service. This webservice refrences the WCF service using MyWCFServiceLibrary.dll and MyWCFServiceLibrary.pdb. The web service is hosted in IIS. All this setup is working fine on the development environment.Now I want to deploy this in the QA environment. Since I am a newbie with WCF, I would appreciate some help on what needs to be done for deploying this on the QA server.1. Do I need to recompile the MyWCFServiceLibrary.dll after changing the connectionstring to point to QA database and tracing and loggint paths to the new server?2. Is there anything that needs to be done with end points or anything else?

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Access :: DBFactory Class?

Feb 13, 2011

Is DBFactory class supports concurreny internally in If yes then how? And if no then how can I handle concurrency in If there are thousands of users using same website at a time then how to handle concurrecy issue?

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How To Access A Control Into A Class

Jan 26, 2011

I Have a Gridview in page.aspx. this gridview i want to pass as a parameter to the constructor of a class1.cs.Can anybody tel me, How can this be done?

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Access :: Specifying Provider Name Within C# Class?

Apr 8, 2010

I am adapting a book example of a shopping cart application, and have almost, got it complety working. I am using an access database rather than a sql server one used in the example. Earlier on I found I had an issue with the sql datasource where I had to specify the provider name as below of I would get the error about provider keyname not being supported

="<%$ ConnectionStrings:OICConnectString %>"

Now, within once of the classes, it refers to the database connection string and this is now where the same error occurs, when the page requires this class and it must be because the provider name is not specified, but i'm new to C# so I'm not sure how to do it.

Here is this part of the class

bool WriteOrder(Order o)
string cs =


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Access Class From Within The Aspx Page

Nov 22, 2010

I am trying to do something such as:

<%= Class1.GetName %>

in my ASPX page, but my class1.vb can't work like this, I have to declare it first in the aspx page, how can I make my Class1.vb file be shared among the whole website?

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Access :: Inserting Into Database In C# Class?

Apr 9, 2010

During an adaption of a book based example application, to use an access database instead of sql server - I have come up with the final issue: It will not insert into the database! I suspect it might be to do with the OrderID, I do have it set to autonumber,but I am not too sure. This is the class that does the inserts, by adding customer information to customer table, order information to order table and ordeitems information to the orderitems table. When submitting this information on the webpage, there is the custom error that an error has occurred in your order due to this code page code behind

bool success = OrderDB.WriteOrder(order);

Session["cart"] = null;

Session["order"] = null;

if (success)


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How To Access User Control In Vb Class

Jan 19, 2011

i have a usercontrol named filebox (which wraps a fileupload and some related stuff) in a certain .net class i have need to use this type as a ctype but i cant seem to call ctype(aobject,filebox) or either ctype(aobject,Controls_filebox) (which is the correct name) how can i convert an object to this type?

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What's The Default Access Modifier Of A Class

Aug 17, 2010

What is the default access modifier of a class?

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C# - Can't Access Class Library In A Web Application

Feb 28, 2011

I have two projects in one solution :

Class Library for my BLL and DAL classes Web Application for my PL

Now I just use the keyword "using" in the BLL and DAL classes and get access to their methods easily. but now I try to reference the BLL and DAL in the web application project through the "using" keyword but it won't let me (the name space couldn't be found (are you missing reference ?)) .. then I tried to reference the library's dll (grabbed it from the ClassLibrary/bin/debug) and the same error just popped out again!


My solution consists of two projects (ClassLibrary and a WebApplication) and I want to use/reference the classes/dlls of the class library in the web application

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C# - How To Access Method In Class Library

Jul 23, 2010

I've moved a class in my project into a class Library in the same solution. I've added a reference in the web project to the class library.

How do I access the methods in the class library?

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Web Forms :: How To Access Controls In VB Class

Mar 1, 2010

i have a orderclass.vb and a Default.aspx.

on Default.aspx i have a label, orderclass.vb has a Select Case :


when the case=1 on orderclass.vb the label in Defaultaspx sould display "test"

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WCF / ASMX :: How To Access The Property Class

Oct 29, 2010

Actaully i am careted one webservice name:service1,created one more class name: service2 this poperty class for webservice,My question is

1.How to access that property class in client side?

2.It's possible to create Layer archt. Inside the webservice?

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Access Page Header From Within A Class

Feb 9, 2010

Does anyone know how to access a Page Header (Me.Page.Header) from within a class?

I'm working in ASP.NET

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Base Class Access A Parameter?

Feb 15, 2010

Is it possible for a Controller Base class to access a parameter from an action link and if so how do I access that parameter within my Base Controller?

Action Link:

<%=Url.Action("Area_1419", "Home", new { SectionId = 1})%>

Base Controller Class:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Website.Models;
namespace Website.Controllers
public abstract class CategoriesController : Controller
public CategoriesDataContext _dataContext = new CategoriesDataContext();
public CategoriesDataContext DataContext
get { return _dataContext; }
public void SectionID()
int SectionID = Convert.ToInt32(Request.QueryString["SectionID"]);
ViewData["SectionID"] = SectionID;
public CategoriesController2()
//ViewData["Categories"] = from m in _dataContext.Categories where m.Area_ID == SectionID select m;
//ViewData["Categories"] = from c in DataContext.Categories select c;


using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Website.Models;
using Website.ActionFilters;
namespace Website.Controllers
public class HomeController : CategoriesController
public ActionResult Index()
return View();
public ActionResult About(int? SectionID)
//ViewData["Message"] = SectionID;
return View();
public ActionResult Area_1419(int SectionID)
return View();
public ActionResult Admin()
return View();

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MVC :: Access A Class Function From A View?

Feb 23, 2010

I have in my Models folder a Class named "Utilities".

I need to acces one method of that class inside a view, like <%if(IsASelectedCategory(item.categoryId, item.productId))%>

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Access A WebMethod In Class Library?

Aug 8, 2010

I have a custom class library that performs validation. I want to open up this class for use within Javascript. I understand that I can easily achieve this by utilizing WebServices/WCF or by creating a function on my page with the WebMethod attribute, but it'd be nice not to have to set all that up for every project.

Ideally I'd like to just add the WebMethod attribute to my class library methods and then call them using Javascript.

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