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Web Q&A: Pop-Ups, Encrypting an ADO.NET Data Stream, and More

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

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Encrypting and Decrypting Data


Hi all,

I have a webApplication in which i want to encrypt the data using Public key and whan it reach to the destination webapplication it will decrypted there with corresponding private key . Is there is any way to creating this pair of key? Is there is other way of doing this.Pls. Suggest.......

Incomplete/truncated data Serialized to disk. Error:End of Stream encountered before parsing was com

Greetings!! i have a dataset which is constantly serialized & deserialized by multiple threads (in a thread safe manner using lock statement) using System.Runtime.Serialization.Formatters.Binary.BinaryFormatter (.net 2.0). The Code below works pretty fine but in some rare scenarios it gives the above exception while deserializing. public void SerializeData(string path, DataSet currentData) { dataStream = new FileStream(path , FileMode.Create, FileAccess.ReadWrite); try { biFormatter.Serialize(dataStream, currentData); } finally { dataStream.Flush(); dataStream.Close(); } } DataSet DeserializeData(string path) { dataStream = new FileStream(path , FileMode.Open, FileAccess.ReadWrite); DataSet storedDataSet = new DataSet(); storedDataSet.Locale = CultureInfo.InvariantCulture; try { storedDataSet = (DataSet)biFormatter.Deserialize(dataStream); } finally { dataStream.Close(); } return storedDataSet; } When i observed the serialized file i realized the file had some in incomplete/truncated data. The truncated file loo

The incoming tabular data stream (TDS) protocol stream is incorrect. The MARS TDS header contained e


Below error occured like 100 times today morning , have no clue where to start looking into.

Any ideas?




Exception of type 'System.Web.HttpUnhandledException' was thrown.


The incoming tabular data stream (TDS) protocol stream is incorrect. The MARS TDS header contained errors.


   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)

Incoming tabular data stream error

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Hi I have an access database linked to a SQL 2008 back end, in the last few weeks I have start to get the following error when the users try to update a particular form.
ODBC--Update on Linked Table Bill Phonenum Add Failed.

[Microsoft][SQL Server Native Client 10.0][Sql Serer]The incoming tabular data stream (TDS) remote procedure call (RPC) protocol stream is incorrect. Parameter 2 (""):data type 0X00 is unknown. (#8009)

I have searched for a fix for this but I can not find one, the error is inconsistent as it does not happen every time and seems to have moved, when it was first reported it was on a numeric field but it was reported yesterday on a bit field.
even more strange is the fact that if you go to the form change one bit field it does not happen, it

HttpWebResponse.getResponseStream(): Stream sometimes does not deliver received data from HttpRespon



I have a problem with chunked encoding. We want to keep up a http connection between a JBOSS 5.1 server and a .Net Client using chunked encoding by responding periodically with short from the server upon a http client request.


The server delivers a http response with chunked encoding.
The ResponseStream should deliver each received chunk part immediatly, see code below.


With wireshark I can verify the server sends each chunked packet and the .NET client sends an ACK message (on TCP level)


Binding WPF Controls to an Entity Data Model

In this interview, programming writer, McLean Schofield, demonstrates how to bind WPF controls to an entity data model, using Visual Studio 2010 Beta 1. You can also learn more in the topic: Walkthrough: Binding WPF Controls to an Entity Data Model.

Surrogate vs Natural Primary Keys - Data Modeling Mistake 2 of 10

In case you're new to the series I've compiled a list of ten data modeling mistakes that I see over and over that I'm tackling one by one. I'll be speaking about these topics at the upcoming IASA conference in October, so I'm hoping to generate some discussion to at least confirm I have well founded arguments.

The last post in this series Referential Integrity was probably less controversial than this one. After all, who can argue against enforcing referential integrity? But as obvious as surrogate keys may be to some, there is a good deal of diversity of opinion as evidenced by the fact that people continue to not use them.

Editing the Data in a GridView

In addition to deleting a GridView's underlying data, another common need is to allow end users to edit the data displayed in a GridView. With ASP.NET 1.x's DataGrid control, editing the data is certainly possible, but requires creating three event handlers and writing a dozen or so lines of code. With the GridView and ASP.NET 2.0, it is possible to create an editable GridView without writing a single line of code! All of the necessary functionality is encapsulated within the GridView.

The GridView allows editing on a row-by-row basis. An editable GridView contains an additional column with an Edit button in each row. When the end user clicks on an Edit button that row becomes editable, causing the Edit button to change to Update and Cancel buttons and the other columns to become TextBoxes. The end user can then update one or more column values and click Update to save their changes.

Using ASP.NET 3.5's ListView and DataPager Controls: Displaying Data with the ListView

Prior to ASP.NET 3.5, developers who needed to display a set of records could choose between the GridView, DataList, and Repeater controls. The GridView provides rich data features, but has a very boxy layout; the DataList and Repeater allow for a more flexible layout, but lack the "point and click" data features found in the GridView, DetailsView, and FormView controls. The ListView bridges the gap between layout flexibility and built-in data features.

This article, the first in a series of articles on the ListView and DataPager controls, looks at the ListView's many available templates and illustrates how to display data. Read on to learn more!

Dynamic Data Templates in GridView ASP.NET 3.5

At a high level, Dynamic Data Templates can be seen as a system to very quickly build up a User Interface linked with the relevant data model, immediately enabling you to perform CRUD operations (Create, Read, Update, Delete) on the database using the specified data source. They provide a powerful method for building up these kinds of applications, and I'm going to focus on an overview of what Dynamic Data Templates actually are, and a few ways of customizing them to suit industry needs.

MS SQL Server: Search All Tables, Columns & Rows For Data or Keyword Query

If you need to search your entire database for specific data, this query will come in handy.

So when a client needs a custom report or some sort of custom development using Great Plains, most of the time I will have to track down the data in the system by running this query and find the table(s) it is in.

Displaying Data using ASP.NET 2.0 Repeater and C#

This tutorial will show you how to display data using the .NET Repeater Control, ASP.NET 2.0 and C#.NET

The Repeater control is a powerful tool and is easy to use.

First, you will need to import the System.Data.SqlClient namespace.

MVC architecture in ASP.Net using C# and Microsoft Data Access Application block

The Model-View-Controller (MVC) pattern separates the modeling of the domain, the presentation, and the actions based on user input into three separate classes [Burbeck92]:

Model. The model manages the behavior and data of the application domain, responds to requests for information about its state (usually from the view), and responds to instructions to change state (usually from the controller).

View. The view manages the display of information.

Controller. The controller interprets the mouse and keyboard inputs from the user, informing the model and/or the view to change as appropriate.

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.

Display data in gridview dynamicallay

I have AD domain which has 100000 users, I want to display all the users in gridview controls.Actually it is displaying users in gridview after parsing entire domain which takes around 30 min. I want to display the users while loading itself.It is continously getting user information from AD domain and getting each user details, I want to display the users information which already queried instead of waiting till getting all users information

asp.net display data in gridview

i want to display data in gridview binded to a sql datasource
but the problem part is i want to bind a field of that datasource to a dropdownlist and when a item is selected in that dropdownlist then correcposnding to that data will be displayed in gridview...

display data into GridView from excel sheet

I have to display data from excel sheet into my gridview and also I need to figure out a way to store data into excel files from my web page. I am using C# 3.5, VS 2008.
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