I just want to ask , how to claer logics , and how to think Logically While writting code ... As i am working from the past 4 months My Seniors always ask me to think logicaly just post this qusetion bcoz i thought these things are happening to me ?
View 5 RepliesI'm looking for exampe of user managenet (login / registration / recover pass ...)
that is written in 3 layer architecture.
I'm currently trying to work out the best way to build this web application, which will then be intergrated on other systems, such as WinForms, Intranets etc.
We hope to include the usual layers i.e. DAL, BLL, BOL and UI but I have been experimenting with Entity Framework 4 and WCF Data Services and managed to get something in place where I was using WCF as a gateway to EF4.
i.e. Adding a Service Reference to my project and then using the EF4 context and writing LINQ queries against the DB
e.g.[Code]....
Now with the current setup I would still need to write a DAL Class Library, that interacts with the Data Service, because as I said WCF Data Services only seems to be a gateway, I can't see where to put the code (above) in the Data Service and then how I could these methods.
My questions are: 1. How do I develop a WCF Data Service in such a way to allow this behaviour - I know how I could do it using ASMX web service, something like [Code]....
2. If I am to use WCF Data Services, how is serialization handled (if at all) - again I know how to do something in ASMX web services
3. Again, If I am to use WCF, how do I add Security and only allow my applications to access the web service - for obvious reasons
4. Would it be possible / logical to also include the Business Logic Layer into the web service?
i have to select some audio or video files and write to some cd or dvd . is it posible to do this in asp.net
View 7 RepliesI want to code a image link like this...
String p = ""
P = P + "<asp:Image ID='Imageprofile runat='server ImageUrl='~/images/"+ x[5].ToString() +"'/><br/><br/>";
Literal2.Text = P;
But this doenst work,
I am using Visual Web Developer Express with VB.net and have a website with 2 pages in them called "Tables.aspx" and "Variables.aspx". On the Tables page the user is required to enter a variable name in to a texbox, which I want then to take the user to the Variables page and have the gridview display the sql result. In behind the search button on the "Tables.aspx" page I have the following code.
Code:
' Search button code
Dim search As Char
Search = CChar(txtSearch.Text)
If Search = "" Then
MsgBox("You cannot leave this field blank.")
[code]....
On the "Variables.aspx" page I had decided to use data readers which brought up only one of the columns however I realised using data readers would mean I would have to individually position each textbox which I am not sure how to do.
Basically what I would like to know is how I do get the result of sql= "SELECT dbo.NILS_tables.Table_ID, dbo.NILS_variables.Variable_Name, dbo.NILS_ variables.Variable_Description FROM dbo.NILS_variables JOIN dbo.NILS_tables ON dbo.NILS_tables.Table_ID = dbo.NILS_variables.Table_ID WHERE dbo.NILS_tables.Table_Name LIKE '%' OR dbo.NILS_tables.Table_Description LIKE '%' " on to a gridview on the "Variables.aspx" page? NB the code for the search button is stored in the code behind file on the "Tables.aspx" page.
Is there a way (except for using JS on the html view) to tell asp.net to run a certain code on client side (instead of server side)?
View 4 Replieshow does the code within the <% .... %> brackets write to the output stream of a view?
Where view code that looked like the following would write the HTML for a <table> to the output html of the view.
<%
ToViewOutput( "<table>" ) ;
ToViewOutput( "<tr>" ) ;
ToViewOutput("<td>row1. cell 1.</td>") ;
ToViewOutput("<td>row1. cell 2.</td>") ;
oViewOutput("</tr>") ;
ToViewOutput("</table>") ;
%>
I want to execute a piece of code. Currently it is written in Page_load().
Because of this my application becomes slow.
Is there any other option where can i write the code?
i am doing a webapplication where any asp.net control i am using is not available while i am writing code in code behind. e.g- i am using a DataList but i did not find DataList1 in the pop up to show my data in .cs page. i dont know what is the problem .
i am using Visual Studio 2008 pro SP1.
i am trying to work up with captcha in my sign up page.Having a google search,i found a .dll which i implemented in my project and it worked fine.Now i want to know that is it a good idea to download the dll files and use it in the project instead of writing the whole code from the scratch?What are the disadvantages of using a dll instead of writing up the entire code form the scratch?
View 6 RepliesI want Parameters collectionPager paging and without writing code
View 1 RepliesI'm trying to test the login control without writing any code. According to Murachs book, you can drag and drop the login control onto a Login.aspx form. Use the ASP Configuration Security tool to create user, roles, and access rules for the website. And you should then be prompted for authentication. I created two folders in my website, admin and users. The admin folder has a admin.aspx form and the users folder has a users.aspx form. I also edited the access rules to only allow admin to access the admin.aspx and only allow user to access the users.aspx form.
View 4 RepliesWe have encountered this difference in file creation while using a HttpHandler Versus a Code Behind Aspx page. We are reading a saved jpg/png picture as byte array from a 'Image' field in sql server database and create a physical file in the server. Both the Aspx Page and Httphandler use the same code pasted below.
//Begin
int docID = Convert.ToInt32(Request.QueryString["DocID"]);
var docRow = documentDB.GetDocument(docID);
// Retrieve the physical directory path for the Uploads subdirectory
string destDir = Server.MapPath("../../Uploads").ToString() + "\";
string strFileName = destDir + DateTime.Now.ToFileTime() + "_" + docRow.DocName.ToString();
FileStream fs = new FileStream(strFileName, FileMode.CreateNew, FileAccess.Write);
fs.Write(docRow.DocData, 0, docRow.DocData.Length);
fs.Flush();
fs.Close();
// End
After the file is created, it is viewable as a jpg/png Image only in Aspx Code Behind. While in case of HttpHandler it is not a valid Image.
i got this message when writing code-behind page: Compiler Error Message: BC30506: Handles clause requires a WithEvents variable defined in the containing type or one of its base types. Source Error:
[Code]....
Line 2: Partial Class _DefaultLine 3: Inherits System.Web.UI.PageLine 4: Protected Sub NewUserWizard_CreatedUser(ByVal sender As Object, ByVal e As System.EventArgs) Handles NewUserWizard.CreatedUserLine 5: ' Get the UserId of the just-added userLine 6: Dim newUser As MembershipUser = Membership.GetUser(NewUserWizard.UserName) also this from the error list: Error 2 'NewUserWizard' is not declared. It may be inaccessible due to its protection level. C:inetpubwwwrootWebSiteDefault.aspx.vb 6 60 [URL] the create wizard resides in the loginview
I've moved away from using sqldatasources, and now I exeucte all my sql in my code behind. However, I'm looking to make my codebehind a little more cleaner/neater. For example, on one page, there are three stored procedures that must execute, and All three have these same 8 lines of code for each of my three stored procedures. How can I condense my code behind to not always have to add this...
SqlConnection conn = default(SqlConnection);
SqlCommand comm = default(SqlCommand);
SqlDataReader reader = default(SqlDataReader);
string connectionString = ConfigurationManager.ConnectionStrings["xyz"].ConnectionString;
conn = new SqlConnection(connectionString);
comm = new SqlCommand();
comm.Connection = conn;
comm.CommandType = System.Data.CommandType.StoredProcedure;
Presently I am working using single tier architecture. Now I am wanting to learn how to write code using 3 tier architecture.
View 8 RepliesI am not sure exactly which topic this post should go under...
Here is what I am doing.
I have a web form where a person will edit their blog article. At some point, once they are done editing, they can click a button "Publish Blog Now".
Once the blog is published in the click event on the server side I am doing a query to get a list of subscriber email address.
These are people who subscribed to this blogger and wish to receive an email notification whenever this person publishes a new blog.
What I just realized today is that my hosting provider only allows me to send a maximum of 200 emails per hour. Which means in my loop I need to sleep for roughly 20 seconds between each email notification sent. But I dont want the user who clicked the publish button to have to sit there and wait while that process is going.
How can I return to the user but yet continue to run some code on the server side to send out the emails in the background even if user closes web browser?
This is an ASP.NET web application targeting .net 4.0 and I am using c# as my back-end language and VS2010 as my development tool.
I am using code like this in Business Logic.Can u explian the below whether i am using Encapsulation concept in the below code.Also tell me why i should use private for declaring variable _Region and public for the property Region
private string _Region;
public string Region
{ [code]....
I got loads of website, that share one of two baseclasses. I need the two baseclasses to be able to share part of the same code. I dont want to have to duplicate the shared code per baseclass.
so.. I got a page.aspx that inherits the baseclass and that inhertis 'sub' baseclass that inherits the web.ui.page class. So far so good :-)
In my baseclass I got a Public (at the top of the class not in any method- not sure of the proper term) Varable that is constructed from a structure in the BO class.
it Public PageDetails AS CoreDomainSetupBO.GetStartUpDetails = {database method}
I need the pagedetails to be available in the sub baseclass but it cant be defined there as the page details value is defined differently in the different base classes.
I hope that makes sense, I need to sub base class to be able to use a property that is defined at baseclass level.
How do I measure code quality in VS 2010. What I am specifically looking for is Industry standards How do I measure this
View 1 RepliesI am creating an authentication service. This service has one of the methods to validate username and password and return a status based on it.
The validation method has bunch of things to check before it can say user is valid. This method has a pseudo code similar to this:
If UserName and Password is correct
If User Account is Locked (due to invalid attempts)
{[code]....
As you can see there are lots of if else statements that I am writing. It looks more like a procedural programming rather than object oriented.How can I fit such kind of code in object oriented pattern?
find a free 3-Tier Code Generator for asp.net .
View 2 RepliesIf an error happens in the DA_layer, how do I pass it do the code_bedhing to show the user?
[Code]....
I am looking details on the internal working of asp.net architecture. The topics need to include the following:
Asp.Net Thread/Application Pools HttpRuntime HttpApplication - When and how it is set up How HttpContext is set up How objects can passed along the pipeline using HttpContext.Current.Items Why does modification of static variables requires locks in ASP.NET (advanced)IIS 7 Integration Mode