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Data Points: Saving Parent-child Data in a Multitiered App Using ADO.NET

Posted By:      Posted Date: August 21, 2010    Points: 0   Category :ASP.Net

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How to assign data from 1 DataReader into Parent/Child object??

Hi I have a parent & child table. Parent - User UserID UserName Status 1 Shallin A 2 How A   Child - UserAccess UserID Country Default 1 US 0 1 UK 0 1 MY 1 2 SG 0 2 HK 0 2 MY 1   I also have parent & child object class.       I would like to use 1 C# function and 1 SP to handle the retrieve portion but I have 1 problem. I'm not sure how to assign the value from Reader to the object.   I do something like this but I only get 1 country which is the last country. if (dr.HasRows) {     while (dr.Read())     {         User objUser = new User();         objUser.UserID = dr["User_ID"].ToString().Trim();         objUser.UserName = dr["UserName"].ToString().Trim();         objUser.UserStatus = dr["Status"].ToString().Trim();         UserAccess objUserAccess = new UserAccess();         objUserAccess.Country = dr["Country"].ToString().Trim();         objUserAccess.Default = dr["Default"].ToString().Trim();         objUser.UserAccessCollection = new UserA

Non parent-child dimension with fact data at different levels... How!

Hi all, Quite new to SSAS, wondering if anyone could help with the following... I've got a dimension with attributes that indicate geographical location based upon UK postal boundaries - so ~1.8m Postcodes > ~10000 Postcode Sectors (PCDS) > ~3000 Postcode Districts (PCD) > ~100 Postcode Areas (PCA). The problem I have is that the address information is not of the highest quality. I have matched 50% of my facts to postcodes, of the remaining 50% i've mapped them to PCDS, PCD or PCA, where possible, leaving the lower-levels as NULL in those cases. My attribute hierarchy works fine where I have complete records all the way down the hierarchy, but I only have a single UNKNOWN member at the top (GOR) level. I want an UNKNOWN member at each level. It makes sense to me how to do this using a Parent-Child dimension, but i'm keen to avoid that as the performance is terrible. I'm hoping there's a method of configuring this. Any help massively appreciated.

Insert data in parent and child table at the same time


I have two (parent-child) tables that are bound by a primary key (PK)/foreign key (FK) relation.each PK is identity (idStudent and idBac)

to insert data, i'm using an little application in c# i programmed myself where i insert these columns for the Student table: F_Name, L_Name, Age, Mobile, Adresse, City ,and  ( i don't know how to handle the idBac wich is foreign key of the other table wich still not inserted yet)

for the table Bac, i insert section, school, and city.

what i want is when i click on "OK" button, the idBac ,wich is a foreign key of the other table (BAC), receives the same idBac given the moment i inserted the BAC informations too ...

i don't have any problem wich ado.net ...i just want the right query/procedure.

thanks in advance and sorry for my english, it's not my mother tongue.

Insert Parent and Child row in ONE Formview Dynamic Data


Hi All,

I am at my wits end and need some help, I have a dynamic data site, and have built a formview for my parent table, Claims (parent), Claims has a child table called DamagedVehicles, I want all the fields on the Cliams table and the fields on the DamagedVehicle to be displayed for insert on the same formsview, when the user fills in all data it should insert the claim and the damagedvehicle at the same time and set the foriegn key on the Damagedvehciles row to the Primary key of the claim, I dont know were to start any examples in VB.net or C# will be greatly appricated. i have been search for 3 days now trying to come to a solution and nothing has worked.

thanks in advance.

GridView control to show master-child or master-slave data, written in c#, asp.net

I previously made a master slave datagrid using Visual Studio 2003 .Net (original article) that would allow users to show data to clients using collapse and expand features. These features however did not carry over to gridview for many users. This tutorial will explaing how to create a collapsable/expandable gridview in frameworks 2.0 and higher

Saving textbox data to MySql database in asp.net


Hi dear coders

though a very simple question to ask, but please tell me how to save and retrieve data in/from my textboxes to/from database (MYSQL) on submit button click.

i know its a very simple task but i cant make it done, so i request you to please send me some working example link or post any helpful code here in asp.net

i will be highly thankful for any kind help from you geniuses.



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

Data Points: Windows Azure Table Storage - Not Your Father's Database


Let go of your traditional relational database thinking if you want to understand how Windows Azure Table storage works, says Julie Lerman. Luckily for you, she's done the hard work to grasp the new concepts and help you get up to speed.

Julie Lerman

MSDN Magazine July 2010

Data Points: LINQ Projection Queries and Alternatives in WCF Services


LINQ's ability to project randomly shaped data into anonymous types can be a blessing and a source of frustration, says Julie Lerman. It's great when you just need to grab a special view of your data, but it can be problematic in certain circumstances. She explains what the limitations are and how to get around them.

Julie Lerman

MSDN Magazine May 2010

Data Points: Precompiling LINQ Queries


Did you know that by precompiling LINQ queries you might actually be degrading your app's performance if you're not careful? Julie Lerman explains how to ensure you're not re-precompiling queries each time and losing the expected performance benefits across post-backs, short-lived service operations and other code where critical instances are going out of scope.

Julie Lerman

MSDN Magazine March 2010

Data Points: Data Validation with Silverlight 3 and the DataForm


In this month's column, John Papa shows you how the DataForm control works and how it can be customized.  He presents in detail a sample application that uses several features to bind, navigate, edit and validate data using the DataForm.

John Papa

MSDN Magazine October 2009

Data Points: Data Performance and Fault Strategies in Silverlight 3


In this month's column, the author shows how binary encoding works, the effect it has on an application's performance, and how it behaves by demonstrating it in action.

John Papa

MSDN Magazine August 2009

Data Points: Building An Out-of-Browser Client With Silverlight 3


Silverlight 2 applications are restricted to running inside a browser. However, Silverlight 3 applications can run inside the browser or out. Here we build a social networking app as a standalone Silverlight 3 application.

John Papa

MSDN Magazine June 2009

Data Points: Using Silverlight 2 With ADO.NET Data Services


ADO.NET Data Services and Silverlight make a powerful combination, but to make them work well together, there are a few things you need to understand. Here, John Papa explains.

John Papa

MSDN Magazine April 2009

Data Points: Syndicated Data And Isolated Storage In Silverlight


Here we build a syndicated news reader application to illustrate the use of isolated storage and data syndication in Silverlight.

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MSDN Magazine February 2009

Data Points: Cloud Gazing From Silverlight 2


John Papa tackles questions about calling services from Silverlight 2 applications.

John Papa

MSDN Magazine November 2008

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