.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Importing a SQL View with ADO.NET

Posted By:      Posted Date: September 15, 2010    Points: 0   Category :ASP.Net
I am trying to import a view into my edmx model.  The problem I am having is that it does not find a valid identifier for the view. I have previously imported a different view (in which I included the primary key of the attributes that are present in the view, and in this case the primary key was inferred correctly). However, in the new view I am trying to import, it is not possible to include the primary key in the view.   The view is simple: --- SELECT DISTINCT Attr1 FROM Table1 ---   And since I am selecting "DISTINCT" values, really there shouldn't be any duplicate values in the table anyway. How can I solve this issue?    

View Complete Post

More Related Resource Links

Truly Understanding View State

This article provides a detailed understanding of the ViewState.

GridView Parent Child View with JQuery Effects

I was just checked how to add some more cool effects to the GridView control using JQuery. In this post I will display parent-child data in the GridView control with some help of the wonderful JQuery library.

Let's first populate the GridView control.

Model View Controller (MVC) for ASP.NET

Model View Controller (MVC) architectures, immediately wonder how the MVC pattern can be applied in an ASP.NET world. This article will demonstrate how the MVC pattern can be applied to an ASP.NET web application and still maintain the basic Microsoft supplied architecture.

jQuery grid view plugin

jqGridView is new, client-rich, XML-based, ajax grid plugin for jQuery library. jqGridView provides professional solution for representing and editing tabular data on the web. Carefully designed, with powerful script API, this editable DHTML grid is easy configurable with XML, and shows convincing results working with large amounts of data. jqGridView allows easy implementation of nice looking(managed through css). jqGridView is not platform-depending plug-in, it can be used with different web -programming platforms like: ASP .NET/ASP, PHP, JAVA, CGI scripts etc. jqGridView has hight bowser compatibility.

jQuery grid view plugin

jqGridView is new, client-rich, XML-based, ajax grid plugin for jQuery library. jqGridView provides professional solution for representing and editing tabular data on the web. Carefully designed, with powerful script API, this editable DHTML grid is easy configurable with XML, and shows convincing results working with large amounts of data. jqGridView allows easy implementation of nice looking(managed through css

view state vs request parameters


If  the view state is the data entered into the form fields then they are supposed to be available in the request parameters or request body. Then why would we need view state for?


Form view in ASP.NET


hi all...!
i have a database and i create a form with button edit,delete, New Registration..using Formview in asp.net..
everything was working good...

And i write SQL statement to get New ID number into dropdownlist/TextBox when i click button "New Registration".

i can get new(next) ID number after read database
it's also working good

Now i want change it to get ID which was deleted from table and replace the ID with new record...what i need is when i click "New Registration" i want get deleted "ID" first and then go to new record ID...

my code is here:-it working for get next ID after read database.

FROM Table1
AS boon WHERE PANG >300000

partial view, 2 controllers



This is my first visit to the forums, I hope someone here can help me


I'm writing a small webapplication for creating repair tickets and adding comments, really basic

now I'm writing this in MVC2

So I have 2 controllers, 1 HomeController that does everything related to the tickets (listing tickets, creating new ones, editing) and 1 controller for the comments

the edit view for the homecontroller contains a partial view for /comment/create

so /home/edit/ticketnumber can edit the title and status of the ticket on the left side of the screen, the right side of the screen contains the partial view for adding comments

this is done like this:

Html.Renderaction("Create", "Comment");

but if I look at the generated html code when running the app, both save buttons go to /home/edit/ticketnumber

so the comment is never saved.


I hope this makes sense and that someone can help me solve this

WebDev.WebServer.exe has encounted a problem and needs to close when trying to view page in browser


Hi, whenever I load an aspx page in vwde2008, I get the message in the subject of this post.  After I click Ok on that, I get a dialog box, Unable to Connect to the ASP.Net development center.  What can I do to troubleshoot?

I am using Windows XP SP3, vwde2008 with SP1, on a HP desktop.  Also using Office 2003 if that is relevant at all.

Thanks, Justin

View State Encryption


Hi All,

Why is it that I see the same hash value generated when I use different algorithms for viewstate encryption. I have added below lines to the web.config file

<pages viewstateEncryptionMode="Always"

Error: Encountered multiple versions of the same assembly with GUID...try pre-importing...TlbImp


Hi!  Can someone tell me how I can troubleshoot the following error: "Encountered multiple versions of the same assembly with GUID...try pre-importing one of these assemblies".

The website developed in VS 2010 (.Net 3.5). This error is only received on my workstation.  Another person developing the site does not experience this issue at all.  Also, not sure if this matters, but on my workstation the 'Assembly Information...' dialog contains no values even though the 'AssemblyInfo.vb' file does specify values for the title, desc, etc.  The GUID being referenced in the error is the main project of the three projects within the solution.

I tried looking through the GAC, but do not see any references to the projects or DLLs in the VS solution and am not sure what else/where to look.

If I delete the copy of the solution on my local machine and pull down a copy from source control (AnkhSVN) the solution will build with no error.  Once I make any changes, such as adding a new aspx file, then the error is received.

I can provide any additional information needed.

While Importing Excel 2007 file to Datatable - headerrow problem


Hi there,


I am trying to simply extract an excel data from an uploaded file an put it into a datatable. In this case the excel file has 3 rows but when I fill the datatable I only see row count of 2.

I tried changing HDR:NO; to HDR:YES and vice versa, but no luck. 

What am I doing wrong? (Note: the excel file cannot have a  headerrow)


string connstr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + pFilePath + ";Extended Properties=\"Excel 12.0;IMEX=1;HDR:NO;\"";
            OleDbConnection conn = new OleDbConnection(connstr);
            DataTable dtTables = conn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, null);
            string strTablename = dtTables.Rows[0]["TABLE_NAME"].ToString();
            string strSQL = "SELECT * FROM [" + strTablename + "]";

            OleDbCommand cmd = new OleDbCommand(strSQL, conn);

            DataTable dt = new DataTable();
            OleDbDataAdapter da = new OleDbDataAdapter(cmd);
            //At this point row count=2 which doesn't make sense




Custom Control Design view error



I have created a custom control from scratch and it works fine as in you can build the project that uses it and it works fine at runtime. Problem is when you go to design view the control shows an error in the place of where the control should be rendered.

Error: '<SomeValue>' Could not be set to '<SomeProperty>'

This shows up on all my custom set properties. These properties are created as basic as possible. I can give the properties values in Source view and run the app just fine. I can even add a Onclick event. If I don't set any custom properties the control will render fine in Design view. It's only when I set a value to a custom property.

Property Code Example:

public string Text
                string ret = "";
                object obj = ViewState["Text"];
                if (obj != null)
                    ret = obj.ToString();
                return ret;
                ViewState["Text"] = value;

I've even removed the Category and Description tags with no difference.

I don't know if what I said makes sens, but I hope it

Crystal Report Asking for Database Authentication each time when I view Page.


Whenever I open my Crystal Report page, I am taken to the Database Authentication page where I am asked for

User name
Data Name

each time.

Is there a way to avoid this and I save these authentication in my page once.

I am using VS2005, C#.

Any Help will be appriciated.


Design Patterns: Problems and Solutions with Model-View-ViewModel


The Model-View-ViewModel (MVVM) design pattern describes a popular approach for building Windows Presentation Foundation or Microsoft Silverlight applications. Robert McCarter shows you how the ViewModel works, and discuss some benefits and issues involved in implementing a ViewModel in your code.

Robert McCarter

MSDN Magazine July 2010

Security Briefs: View State Security


Effectively managing user state in web applications can be a tricky balancing act of performance, scalability, maintainability and security. The security consideration is especially evident when you're managing user state stored on the client. Here's what you need to know about view state security.

Bryan Sullivan

MSDN Magazine July 2010

Silverlight Patterns: Model-View-ViewModel In Silverlight 2 Apps


In this article, you'll learn how to avoid problematic tight coupling by applying the Model-View-ViewModel pattern in Silverlight 2.

Shawn Wildermuth

MSDN Magazine March 2009

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend