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


Top 5 Contributors of the Month
Kaviya Balasubramanian
Sgraph Infotech
Imran Ghani
Post New Web Links

Help executing sql in code behind

Posted By:      Posted Date: December 04, 2010    Points: 0   Category :ASP.Net
 

Hi. I would appreciate some help with how to perform CRUD functions from code behind. I realise that I can simply have a datasource on my page and data bound controls but that isn't appropriate for what I am trying to do. I need to perform the CRUD functions from code behind.

First question is whether I can have a datasource control on the page that isn't bound to any controls and then use that datasource from code behind to perform CRUD actions. If so can anyone provide some code examples.

I realise that I can avoid a datasource control and create a data class (.dbml). If I then create a context object I can reference a table (eg myContext.tableName) and use linq to read data from the db table to a data object.  eg

var myDataObj = from x in myContext.tableName select x;

 However, at the moment if I want to, say, update data I need to do something like foreach (var dataItem in myDataObj) to step through the data a r


View Complete Post


More Related Resource Links

Using the BDC API how to catch the returned code when executing a stored procedure?

  
using BDC API, how can i catch the return code a stored procedure returns?

I tried Entity.Execute to execute a generic method. However, it returns an empty Entity table.

I know you can do it by setting up an output variable. I prefer returning an integer for tracking errors.

Any ideas?

Thanks,

Guangming

Video: SharePoint 2010: Executing Code in the Sandbox

  
Find out how the Sandboxed Solutions Service provides for a complete isolation system that ensures code running in a sandboxed solution cannot reach out to access information beyond the scope of the deployment. (Length: 12:01)

Code inside page load is not executing.

  
  I am beginner to .Net development, so i am looking for a favour. Thanks a lot in advance!!!!!!! Question 1 :  protected void Page_Load(object sender, EventArgs e)    {        txtUserName.Text = "Focus";                txtUserName.Focus();            } I am unable to get focus to my textbox   Question 2 : I made javascript code for client side validation. function loginjs()        {            if(document.getElementById('txtUserName').value.length==0)            alert("UserName cannot be blank");            else if(document.getElementById('txtPassword').value.length==0)            alert("Password cannot be blank");                    } this code executes but it is not stopping further code execution. I mean it is only alerts but in addition to that i need to stop further execution.     &nbs

"Live preview" while executing the code behind.

  
Hello!I have some code running behind - in example adding rows to the datable in loop.I have button which execute this procedure. Now I want to add textbox(?) or literal as well on my page.After each row which is added to the datable I want to write it in textbox/literal but without stopping the process.Something like that:1. User press the button.2. In textbox we have:-- Connecting ...-- Connected!-- Executing the code ...-- 1 row has been added. -- 1 row has been added. -- End of adding rows.How can I do this? 

Stop code not executing

  
The code below is executing even if I leave textbox2 Null.  I thought the execution would stop from executing further code.?Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click If TextBox1.Text = "" Then LabelTextBox1.Visible = True Stop End If If TextBox2.Text = "" Then LabelTextBox2Visible = True Stop End If End Sub  

Service is executing code after time out.

  
Hi All,  I am using IsOne way and nettcp binding in mu WCF. [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single,ConcurrencyMode=ConcurrencyMode.Multiple)]   public class FlexiAsyncServer : IAsyncInterface   {       public void OneWayRequest()         {              for (int i = 0; i <= 5000; i++)                 {                     DbCommand cmd = dbAsync.GetSqlStringCommand("insert into  JOB_DEFNN (JOB_NM,JOB_STAT_CATG_ID,JOB_GRP_ID) values('"+i.ToString()+"',1,101)");                     dbAsync.ExecuteNonQuery(cmd);                 }           } } In Service side before inserting this 5000 records into database i am getting time out error in client side. But though i got error the records are being inserted until it complets 5000. My question is why the service side execution is not stopping a

Code Behind Not Executing

  

This is likely something very obvious.  I have a browser-based form with code behind that functions as expected when previewing it with the client.  It uploads and activates fine through central admin.  The form opens and behaves as expected except the change events are not firing on the controls where there is an event handler in the code behind.

Does anyone know what I'm missing?

Thanks,

Jason


close aspx page after executing code behind

  

I am working in vs 2008, C#.

Load event in my aspx page is having a set of database operations .So after completing those operations i want to close the aspx page.

for that i am calling 

window.close() methond onload event of the body. Its closing the aspx page but it is showing the confirmation message before closing the page.

I dont want to show that message box.

How can i claose an aspx page without showing any message?.

Pls help me

Thanks

Chit


Executing code behind after closing ModalPopupExtender

  

It is possible to execute code behind in parent just after closing  ModalPopupExtender ?

Please I need your help . thanks


Error Executing Package for Analysis Cube in GP 10 (More than one code)

  

Hi,

i installed GP 10 in SQL 2008 and windows 2008, and then installed the analysis cubes.

when try to execute the package DynamicsGP__to__Package_Master i got the error:

Error: the column "INTERID" can not be processed because more than one code page (1252 and 1256) are specified for it.

Error: the column "CMPNYNAM" can not be processed because more than one code page (1252 and 1256) are specified for it.

after searching, i found answers by Mr. Mohammad R. Daoud about removing any linked server, so i take a copy of the data and installed in another test server but it gave me the same error. i checked the test server for any linked server but there isn't any.

what should i do? i need to to make it work in the test server, and also in the real linked server.

thanks.


Executing SQLCommand from within UDT code

  

Hello

I need to obtain current @@LANGUAGE from within CLR code of user defined type. When I try to execute SqlCommand "SELECT @@LANGUAGE" on connection with current context ("context connection=true") I get error "System.InvalidOperationException: Data access is not allowed in this context.  Either the context is a function or method not marked with DataAccessKind.Read or SystemDataAccessKind.Read, is a callback to obtain data from FillRow method of a Table Valued Function, or is a UDT validation method."

Is there a way to get current sql connection langugae inside CLR code of UDT?

Robert


Code Optimized Web Development Profile (VS 2010 and .NET 4.0 Series)

  
When you first run VS 2010 it prompts you to select an IDE profile to use. The profile you select will configure how tool windows are displayed/docked in the IDE by default and set the default keyboard shortcuts. You can then customize any of these settings by using the Tools->Options menu within the IDE and then override/change them. You can also later reset your profile and pick a different one by choosing the Tools->Import and Export Settings menu command.

Free Code Snippets - ASP.NET

  
You Can Find Useful ASP.NET Related Posts on the above link.

Free Code Snippets - C#

  
Free C# Code Snippets

call JavaScript - jQuery code from ASP.NET Server-Side

  
jQuery got so close to me lately that I can see myself adding the scripts to my project almost unconsciously. The thing is, jQuery is very useful for me, in almost all situations and it has been a do or die enhancement for all my project since I first put my hands on it.

Of course while using it, you encounter few situations which need a bit of research to solve, mostly when you are trying to combine it with some other technologies like: UpdatePanels and ASP.NET Ajax. For instance there are many situations when I would like to run some jQuery magic based on some decision that I make on the server side.

call JavaScript - jQuery code from ASP.NET Server-Side

  
jQuery got so close to me lately that I can see myself adding the scripts to my project almost unconsciously. The thing is, jQuery is very useful for me, in almost all situations and it has been a do or die enhancement for all my project since I first put my hands on it.

Of course while using it, you encounter few situations which need a bit of research to solve, mostly when you are trying to combine it with some other technologies like: UpdatePanels and ASP.NET Ajax. For instance there are many situations when I would like to run some jQuery magic based on some decision that I make on the server side

Microsoft StyleCop: Source Code Analyzer for C#

  
StyleCop is similar in many ways to Microsoft Code Analysis (specifically FxCop), but there are some important distinctions. FxCop performs its analysis on compiled binaries, while StyleCop analyzes the source code directly. For this reason, FxCop focuses more on the design of the code, while StyleCop focuses on layout, readability and documentation. Most of that information is stripped away during the compilation process, and thus cannot be analyzed by FxCop.
Categories: 
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