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  • Asp.Net MVC2 TekPub Starter Site methodology question

    - by Pino
    Ok I've just ran into this and I was only supposed to be checking my emails however I've ended up watching this (and not far off subscribing to TekPub). http://tekpub.com/production/starter Now these app is a great starting point, but it raises one issue for me and the development process I've been shown to follow (rightly or wrongly). There is no conversion from the LinqToSql object when passing data to the view. Are there any negitives to this? The main one I can see is with validation, does this cause issues when using MVC's built in validation as this is somthing we use extensivly. Because we are using the built in objects generated by LinqToSql how would one go about adding validation, like [Required(ErrorMessage="Name is Required")] public string Name {get;set;} Interested to understand the benifits of this methodology and any negitives that, should we take it on, experiance through the development process.

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  • Fastest method for SQL Server inserts, updates, selects from C# ASP.Net 2.0+

    - by Ian
    Hi All, long time listener, first time caller. I use SPs and this isn't an SP vs code-behind "Build your SQL command" question. I'm looking for a high-throughput method for a backend app that handles many small transactions. I use SQLDataReader for most of the returns since forward only works in most cases for me. I've seen it done many ways, and used most of them myself. Methods that define and accept the stored procedure parameters as parameters themselves and build using cmd.Parameters.Add (with or without specifying the DB value type and/or length) Assembling your SP params and their values into an array or hashtable, then passing to a more abstract method that parses the collection and then runs cmd.Parameters.Add Classes that represent tables, initializing the class upon need, setting the public properties that represent the table fields, and calling methods like Save, Load, etc I'm sure there are others I've seen but can't think of at the moment as well. I'm open to all suggestions.

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  • ASP.NET Membership C# - How to compare existing password/hash

    - by Steve
    I have been on this problem for a while. I need to compare a paasword that the user enters to a password that is in the membership DB. The password is hashed and has a salt. Because of the lack of documentation I do not know if the salt is append to the password and then hashed how how it is created. I am unable to get this to match. The hash returned from the function never matches the hash in the DB and I know for fact it is the same password. Microsoft seems to hash the password in a different way then I am. I hope someone has some insights please. Here is my code: protected void Button1_Click(object sender, EventArgs e) { //HERE IS THE PASSWORD I USE, SAME ONE IS HASHED IN THE DB string pwd = "Letmein44"; //HERE IS THE SALT FROM THE DB string saltVar = "SuY4cf8wJXJAVEr3xjz4Dg=="; //HERE IS THE PASSWORD THE WAY IT STORED IN THE DB AS HASH string bdPwd = "mPrDArrWt1+tybrjA0OZuEG1P5w="; // FOR COMPARISON I DISPLAY IT TextBox1.Text = bdPwd; // HERE IS WHERE I DISPLAY THE return from THE FUNCTION, IT SHOULD MATCH THE PASSWORD FROM THE DB. TextBox2.Text = getHashedPassUsingUserIdAsSalt(pwd, saltVar); } private string getHashedPassUsingUserIdAsSalt(string vPass, string vSalt) { string vSourceText = vPass + vSalt; System.Text.UnicodeEncoding vUe = new System.Text.UnicodeEncoding(); byte[] vSourceBytes = vUe.GetBytes(vSourceText); System.Security.Cryptography.SHA1CryptoServiceProvider vSHA = new System.Security.Cryptography.SHA1CryptoServiceProvider(); byte[] vHashBytes = vSHA.ComputeHash(vSourceBytes); return Convert.ToBase64String(vHashBytes); }

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  • .Net Dynamically Load DLL

    - by hermiod
    I am trying to write some code that will allow me to dynamically load DLLs into my application, depending on an application setting. The idea is that the database to be accessed is set in the application settings and then this loads the appropriate DLL and assigns it to an instance of an interface for my application to access. This is my code at the moment: Dim SQLDataSource As ICRDataLayer Dim ass As Assembly = Assembly. _ LoadFrom("M:\MyProgs\WebService\DynamicAssemblyLoading\SQLServer\bin\Debug\SQLServer.dll") Dim obj As Object = ass.CreateInstance(GetType(ICRDataLayer).ToString, True) SQLDataSource = DirectCast(obj, ICRDataLayer) MsgBox(SQLDataSource.ModuleName & vbNewLine & SQLDataSource.ModuleDescription) I have my interface (ICRDataLayer) and the SQLServer.dll contains an implementation of this interface. I just want to load the assembly and assign it to the SQLDataSource object. The above code just doesn't work. There are no exceptions thrown, even the Msgbox doesn't appear. I would've expected at least the messagebox appearing with nothing in it, but even this doesn't happen! Is there a way to determine if the loaded assembly implements a specific interface. I tried the below but this also doesn't seem to do anything! For Each loadedType As Type In ass.GetTypes If GetType(ICRDataLayer).IsAssignableFrom(loadedType) Then Dim obj1 As Object = ass.CreateInstance(GetType(ICRDataLayer).ToString, True) SQLDataSource = DirectCast(obj1, ICRDataLayer) End If Next EDIT: New code from Vlad's examples: Module CRDataLayerFactory Sub New() End Sub ' class name is a contract, ' should be the same for all plugins Private Function Create() As ICRDataLayer Return New SQLServer() End Function End Module Above is Module in each DLL, converted from Vlad's C# example. Below is my code to bring in the DLL: Dim SQLDataSource As ICRDataLayer Dim ass As Assembly = Assembly. _ LoadFrom("M:\MyProgs\WebService\DynamicAssemblyLoading\SQLServer\bin\Debug\SQLServer.dll") Dim factory As Object = ass.CreateInstance("CRDataLayerFactory", True) Dim t As Type = factory.GetType Dim method As MethodInfo = t.GetMethod("Create") Dim obj As Object = method.Invoke(factory, Nothing) SQLDataSource = DirectCast(obj, ICRDataLayer) EDIT: Implementation based on Paul Kohler's code Dim file As String For Each file In Directory.GetFiles(baseDir, searchPattern, SearchOption.TopDirectoryOnly) Dim assemblyType As System.Type For Each assemblyType In Assembly.LoadFrom(file).GetTypes Dim s As System.Type() = assemblyType.GetInterfaces For Each ty As System.Type In s If ty.Name.Contains("ICRDataLayer") Then MsgBox(ty.Name) plugin = DirectCast(Activator.CreateInstance(assemblyType), ICRDataLayer) MessageBox.Show(plugin.ModuleName) End If Next I get the following error with this code: Unable to cast object of type 'SQLServer.CRDataSource.SQLServer' to type 'DynamicAssemblyLoading.ICRDataLayer'. The actual DLL is in a different project called SQLServer in the same solution as my implementation code. CRDataSource is a namespace and SQLServer is the actual class name of the DLL. The SQLServer class implements ICRDataLayer, so I don't understand why it wouldn't be able to cast it. Is the naming significant here, I wouldn't have thought it would be.

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  • Using ASP.NET Redirect without string URL?

    - by David Dietrich
    For instance, what I have right now is the following: Page.Response.Redirect("Default.aspx", false); Needing to hardcode the string just seems odd to me. The Default.aspx page is already in my project. So is there a way to do the redirect something like the following: Page.Response.Redirect(Default.aspx, false); Where Default.aspx is just the web form. I'd think that this way it would be obvious if there was a problem such as you deleted the web form but didn't update the redirects. Is this possible? Or is there another way entirely I should be looking at this? I suppose I could do something with a static property on the class, but I am wondering if there is a built in thing for this?

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  • VB.NET Dock problem

    - by Sid
    Whenever I am adding New TableLayoutPanel programmatically in a Panel by setting DockStyle.Top, the last added TableLayoutPanel goes at the top most position of the Panel and the TableLayoutPanel added first comes down. Example: If I add like 1 2 3 4 5 It adds as 5 4 3 2 1 Please help me to fix the problem. The TableLayoutPanels should maintain the order as I am adding. Thanx.

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  • ASP.NET AjaxControlToolkit change Combobox content dynamically per Ajax

    - by Ulli
    If I understand it right the new ACT ComboBox Control is Bound once to a given Datasource. But the count of the records I want to bind is very large. So I want to load the content of the ComboBox List via Ajax after the user typed in a few charachters. So at page load the combobox list should be empty and if something is typed in the list is loaded with the typed text as search text. I tried this: <asp:ComboBox ID="cbxCompany" DropDownStyle="DropDownList" runat="server" AutoCompleteMode="Append" /> Protected Sub cbxCompany_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles cbxCompany.TextChanged Dim dt As DataTable = GetCompanies(cbxCompany.Text) cbxCompany.DataSource = dt cbxCompany.DataTextField = "nameout" cbxCompany.DataValueField = "cid" cbxCompany.DataBind() End Sub GetCompanies is my method for getting data from the database, the parameters filters the select statement. But this doesn't work. Is there a way to reload the combobox content per Ajax?

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  • ASP.NET MVC Ajax OnBegin/Complete Javascript Problem

    - by mrkcsc
    Hello, I am trying to fire off a javascript method using the OnBegin AjaxOption in an Ajax method. However, when debugging with firebug the callback in unable to find the Javascript method and I do not know why. My code is simple, first I use a basic Ajax method like this: <%= Ajax.ActionLink("Testing", "Testing", new AjaxOptions { OnBegin = "RunThisThing" }) % Then under it I decalre this script. <script type="text/javascript"> function RunThisThing { alert("WORK") } </script> Yet when I try running the page and clicking on the link, Firebug tells me "RunThisThing is not defined". Any idea what I might be doing wrong?

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  • validating data in .net

    - by Chen Kinnrot
    i'm looking for recommended validation frameworks, or patterns for an n-tier client application, i wanna write the validation once and ind it to wpf gui, and also for server side and client side related bussiness logic

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  • Java Framework Choice Question.

    - by Sarang
    We do have many frameworks available in Java. Struts, Swing, JSF 2.0, Spring etc are used as per their priority. Actually, I don't know how many they are as well! But, as I am fresher to Java, even learning after their architecture, I cannot decide which framework can be used with what type of Projects ! Also, I am confused with mixed use of framework like Spring + JSF. What is the benefit to it ? Another thing making me confusing is about the UI components available in market. Like, we do have Primefaces, Ice-faces, MyFaces, Rich-faces. They may or may not have been supporting AJAX in-built. They may contains some bugs as well. What is best choice for Framework + UI component that can directly provide a best feet solution for any project ?

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  • Lucene (.NET) Document stucture and performance suggestions.

    - by Josh Handel
    Hello, I am indexing about 100M documents that consist of a few string identifiers and a hundred or so numaric terms.. I won't be doing range queries, so I haven't dugg too deep into Numaric Field but I'm not thinking its the right choose here. My problem is that the query performance degrades quickly when I start adding OR criteria to my query.. All my queries are on specific numaric terms.. So a document looks like StringField:[someString] and N DataField:[someNumber].. I then query it with something like DataField:((+1 +(2 3)) (+75 +(3 5 52)) (+99 +88 +(102 155 199))). Currently these queries take about 7 to 16 seconds to run on my laptop.. I would like to make sure thats really the best they can do.. I am open to suggestions on field structure and query structure :-). Thanks Josh PS: I have already read over all the other lucene performance discussions on here, and on the Lucene wiki and at lucid imiagination... I'm a bit further down the rabbit hole then that...

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  • Securing against dynamic linking in .NET

    - by Henri
    I want to deploy an application with a license attached. However, I want to prevent that my dll can be easily referenced in visual studio. What are the usual ways of doing this? I was thinking about ngen-ing the application to prevent this, however, then the code becomes architecture dependent. Im not targetting any other architecture/platform besides windows, however, ngen-ing the application after making a release build seems like a workaround to me. Are there any other techniques to achieve this?

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  • In an ASP.NET Web Site Project, what is the best option to manage modular widgets

    - by Juan Sagasti
    We are creating a modular Web Site Project and all the UI is based on simple html pages with javascript widgets. These widgets obtain the data from a WCF class located in the app_code folder. Each widget has 3 files [ js, css , cs] and an image directory: , and we want all these files to be located under the same directory, say: /widgets/mywidget/ The problem is that the .cs file needs to be in the app_code folder to be compiled dynamically and that would break our widget modularity forcing the installator to distribute the widget code in two places. One of the options is use compiled assemblies instead of .cs files and use Assembly.Load() or smthg similar to load them when needed. What other options do you see?

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  • GoTo statements, and alternatives (help me please im new) (VB.net)

    - by qais
    Basically I posted a code snippet on a forum asking for help and people pointed out to me that using GoTo statements is very bad programming practise so I'm just wondering, why is it bad? And also what alternative is there to use, like for example in this program ive done for homework the user has to input their date of birth and if the month/date/year are invalid or unrealistic(using if statements checking the integer inputs size, if theres any better way to do this i'd appreciate if you could tell me that also :D) then how would i be able to loop back to ask them again? heres a little extract of my code retryday: Console.WriteLine("Please enter the day you were born : ") day = Console.ReadLine If day > 31 Or day < 1 Then Console.WriteLine("Please enter a valid day") GoTo retryday End If

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  • .NET DataGridView rows' default alignment all set to left

    - by Xster
    DataGridView gets bound to DataTable. I then try to set some columns' DefaultCellStyle.Alignment to right. It doesn't work. After a bunch of tinkering, it turns out that every single row's DefaultCellStyle.Alignment is set to left and overrides it. DataGridView.DefaultCellStyle or RowsDefaultCellStyle doesn't do anything. Makes sense since a particular row's DefaultCellStyle is more specific but what gives. Why are they all set to something and not NotSet? How do I get rid of it instead of iterating through all rows?

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  • subreport with image not display data in crystal report asp .net vs 2005

    - by user361014
    I currently have a crystal report that generating in Visual Studio 2005 which has a sub-report. I've linked the sub-report to dataset and dataset has one table call image and it contain column system.byte[]. main report link to another dataset . main report has parameters and sub report has only image field. but when run main report display data but sub report don't display. no error message. sub report dataset not pass data to report. anyone have any idea what might be causing the sub-reports to not work??

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  • Reading DATA from an OBJECT asp.net MVC C#

    - by kalyan
    Hi, I am new to the MVC and I am stuck with a wierd situation. I have to read the Data from the type object and I tried different ways and I couldn't get a solution.Please help. IList<User> u = new UserRepository().Getuser(Name.ToUpper(), UserName.ToUpper(), UserCertNumber.ToUpper(), Date.ToUpper(), UserType.ToUpper(), Company.ToUpper(), PageNumber, Orderby, SearchALL.ToUpper(), PrintAllPages.ToUpper()); object[] users = new object[u.Count]; for (int i = 0; i < u.Count; i++) { users[i] = new { Id = u[i].UserId, Title = u[i].Title, FirstName = u[i].FirstName, LastName = u[i].LastName, Privileges = (from apps in u[i].UserPrivileges select new { PrivilegeId = apps.Privilege.PrivilegeId, PrivilegeName = apps.Privilege.Name, DeactiveDate = apps.DeactiveDate }), Status = (from status in u[i].UserStatus select new { StatusId = status.Status.StatusId, StatusName = status.Status.StatusName, DeactiveDate = status.DeactiveDate }), ActiveDate = u[i].ActiveDate, UserName = u[i].Email, UserCN = (from cert in u[i].UserCertificates select new { CertificateNumber = cert.CertificateNumber, DeactiveDate = cert.DeactiveDate }), Company = u[i].Company.Name }; } string x = ""; string y = ""; var report = users; foreach (var r in report) { x = r[0].....; i want to assign the values from the report to something else and I am not able to read the data from the report object. Please help. } Thank you.

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  • asp.net and Ajax

    - by Javier
    Hi all I am using the following javascript code to refresh another page window.opener.location.replace(url) The problem is when entering the url, do not find the page as the page is located in the root and this calling code is placed in a page inside another folder. How do I specify the path to point to the root, which is where the page is located? I have try many things, but it does not work; //page.aspx, ../page.aspx, ~/page.aspx, page.aspx, /page.aspx.... Many thanks in advanced

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  • Cruise control.NET invoking an IDE

    - by Maddy
    Hi, I have an IDE named VxWorks 653 2.2.3 Development shell which needed to be invoked all the time when i notice any change in my source files.So i had invoked this shell through a VB scripts which invokes two more .bat(Batch files) to get this shell popped up for execution.Now i feel that since my IDE can be invoked by command line,it can also be invoked through nant scripts using the statement like D:\WindRiver\wrenv.exe -p vxworks653-2.2.3 But what i see is that its not at all invoking.I had tried all different ways but all turned out to be in vain. Can anyone pls suggest me any way either in nant scripts or in cruise control by which my IDE can be invoked.Now at present i am using VB scripts which is a very long proceess. Thanks and regards Maddy

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