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Web Q&A: Consuming a DataSet in ASP.NET, XML and SQL, and More

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

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Introducing ADO.NET and the Typed DataSet

In reviewing the applications it seemed everything they were doing involved database reads, writes, and manipulation. The development staff had been reviewing the articles and code samples for ADO.NET. They had spent many years refining their existing ADO based infrastructure and perfecting their use of ADO

Create and Use a Typed DataSet by Using Visual C# .NET

This article shows you how to create and use a typed DataSet in a small Web application. Typed DataSets, which inherit from the DataSet class, create first-class members of a DataSet's DataTables and DataColumns, yielding the many benefits that come with the use of strong typing.

Get Top 1 Record from Dataset

Many of them in need of getting the Top 1 or Top 10 records from a Dataset without going to SQL query. It is possible to do from Code Behind. I have given the code below,
The below code is to get single record from a Dataset. Also I have given for getting 8 records at Green Color.

Returning a DataSet From a Web Services: Step-by-Step

This Example Shows how to create a webservice which returns a DataSet and a Client Which displays the DataSet in a Grid.


This Example Shows how to create a webservice which returns a DataSet and a Client Which displays the DataSet in a Grid.

Persist large dataset across ASP.NET pages. No database


Can anyone give me suggestions on how to implement the following requirement?

1. A online wizard (step-by step operation) processes user requests across several ASP.NET pages.  The session data is stored in memory until the user submits the request.  Once the request is submitted, a XML file is created and the data are passed to XML.

# Case Study: The parent page has a "select" button.  Click "select" will pop up a child page.  The users can select 1000+ items from a datagrid in the child page.  Once the user clicks "confirm", the selected items in the child page will be populated to the selected item gridveiw in the parent page.  The user can keep selecting more in the child page and the selected items will be appended to the gridview in the parent page.


- What's the best way to extract strings from a text file and convert to a dataset in memory and then present it in a datagrid in UI?

- What's the best way to persist and manipulate a large dataset across pages?  Session? or ViewState? Can it be accomplished by LINQ?

The app doesn't interact with a DB.  Once the request is submitted, it will convert the in memory data to a XML file.  What technology can be used to accomplished this?&nb

Why not Dataset use to Saving?


Hie Friends,

I have searched on net and even i worked on 2 huge shipping projects.

Everywhere i found that while binding data to control use dataset but when we save, they recommend use command (use generic collection and create command object with store procedure) why not we use dataset as in .NET 2.0 it is improved lot and data adapter has new feature batchupdatesize.

why we need to create property page which maps to all column in a database.

E.g. if i have employee table with empid and empname in database then i use to create emp.cs with properties of empid and empname and use same properties for saving. If i use these properties for validation in business rule then no problem. But why we use them in saving for creating command object.


DAL Dataset showing all the column


I follow the tutorial and create DAL with Dataset. I created a Table Adapter with many column, but when i Call a simple Get for 2 column only. The system display 2 column and the rest column with empty data.

My question is that will this affect the performance? because i only need 2 column.

example: Table with 40 column define in Dataset in DAL. I have GetMember from Dataset with 40 column, some request only 1 column (with 39 empty), some request 22 column (with 18 empty column). Will this affact the performance?

Should i create a seperate DatasetAllColumn, Dataset1Column, Dataset22Column ?? so system only return exact column i need. and hofully the performance is optimized to it best.

merging multiple tables in a single dataset to single table


 i have a stored procedure which returns three tables to a dataset ..... now i need to merge all three tables to a single table from d same dataset 

like dataset1 has table1 table2 and table3 .... i want all the three tabels to be merged into dataset1 itself .... instead of three diffrent tables so that i can show all three table data in a single datagrid  as a compact data and combination of 3 tables from d single dataset.....

can some1 help me please.....

Consuming an RSS Feed


I'm looking to make a user control to display the 3 most recent posts from a blog on my home page. I've googled around a bit and found a few ways to do this, but none I'm quite satisfied with.

I looked at the XMLDataSource control, but I'm concerned about exception handling. If the remote feed fails, I want to just hide the usercontrol and let the rest of the page display as normal. There seems to be no clean, declarative way to handle this. An OnError event would be nice, especially if it had an e.ExceptionHandled property on the EventArgs object like some of the other DataSource classes.

Scott Guthrie blogged about an RSS Toolkit for .net 2, but that was four years ago and hasn't been updated.

I'm leaning towards Linq to XML, which would probably work fine, but I can't help thinking that there must be a simpler approach to reed RSS feeds since it's such a common problem.



problem in consuming WCF service through Window application


I have a silverlight application and WCF service all made in VS 2010 , i had hosted my site to web server which contain Window 2008 and IIS 7.0

now the problem is i have another application which is a window application developed in VS2008 , when i try to add the service reference it gives me error


The document at the url was not recognized as a known document type.

The error message from each known type may help you fix the problem:

- Report from 'DISCO Document' is 'There was an error downloading 'http://dev_qa.emspa.com/HRDev3/Service.svc?disco'.'.

  - The request failed with HTTP status 400: Bad Request.

- Report from 'WSDL Document' is 'The document format is not recognized (the content type is 'text/html; charset=UTF-8').'.

- Report from '' is 'The document format is not recognized (the content type is 'text/html; charset=UTF-8').'.

- Report from 'XML Schema' is 'The document format is not recognized (the content type is 'text/html; charset=UTF-8').'.

Metadata contains a reference that cannot be resolved: ''.

Content Type application/soap+xml; charset

Export Dataset to excel sheet in a required format?



I know how to export a grid view to excel.

But here i have a Dataset which consists of data like below and also it need to display in a required format like below.

pno psubno pstate pdetailid pdetails

 12    1          CA         1           cbsdjcbdjc     

12     1          CA          2        cndcnjdcjcj

12     2           VA         4          xcndwkfcgygry

13     1            AL        1           ncdcnjdcndj

My excel sheet  should like this.

pid       pstate     

 12/1      CA             &nb

Crystal report with dataset and list - please help


Hi Guys;

i'm new in reporting so thanks to be patient with me,

here is my problem, i have created a report then a report viewer,, i passed some parameters to the report it goes well.

i'm working with local data stored in List<object>, i tried to fill my dataset (data) with those local data stored in the list, i filed Cry

looking for yor help


Service Station: Creating And Consuming Web Feeds


Jon Flanders demonstrates creating and consuming Web feeds with Windows Communication Foundation and AtomPub.

Jon Flanders

MSDN Magazine April 2009

Inside MSDN: Consuming MSDN Web Services


Get the inside track on how the MSDN team uses Web Services to power MSDN2.

Craig Andera

MSDN Magazine October 2006

Data Points: DataSet and DataTable in ADO.NET 2.0


ADO. NET 2. 0 sports some exciting enhancements to the core classes found in ADO. NET 1. x and introduces a variety of new classes, all of which promise to improve performance, flexibility, and efficiency.

John Papa

MSDN Magazine November 2005

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