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  • How Can I Generate Random Unqiue Numbers in C#

    - by peace
    public int GenPurchaseOrderNum() { Random random = new Random(); _uniqueNum = random.Next(13287, 21439); return UniqueNum; } I removed unique constraint from the PONumber column in the db because an employee should only generate P.O. # when the deal is set. Otherwise, P.O. # would have 0. P.O. Number used to have unique constraint, this forces employee to generate P.O. in all cases so the db doesn't throw unique constraint error. Since i removed the unique constraint, any quote doesn't have P.O. will carry 0 value. Otherwise, a unique value is generated for P.O. #. However, i don't have a unique constraint in db which makes it hard for me to know whether the application generated P.O. # is unique or not. What should i do? I hope my question is clear enough

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  • Counting words in a collection using LINQ

    - by icemanind
    Guys, I have a StringCollection object with 5 words in them. 3 of them are duplicate words. I am trying to create a LINQ query that will count how many unique words are in the collection and output them to to the console. So, for example, if my StringCollection has 'House', 'Car,'House','Dog', 'Cat', then it should output like this: House -- 2 Car -- 1 Dog -- 1 Cat -- 1 any ideas on how to create a LINQ query to do this?

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  • Different users get the same cookie - value in .ASPXANONYMOUS

    - by Malcolm Frexner
    My site allows anonymous users. I saw that under heavy load user get sometimes profile values from other users. This happens for anonymous users. I logged the access to profile data: /// <summary> /// /// </summary> /// <param name="controller"></param> /// <returns></returns> public static string ProfileID(this Controller controller ) { if (ApplicationConfiguration.LogProfileAccess) { StringBuilder sb = new StringBuilder(); (from header in controller.Request.Headers.ToPairs() select string.Concat(header.Key, ":", header.Value, ";")).ToList().ForEach(x => sb.Append(x)); string log = string.Format("ip:{0} url:{1} IsAuthenticated:{2} Name:{3} AnonId:{4} header:{5}", controller.Request.UserHostAddress, controller.Request.Url.ToString(), controller.Request.IsAuthenticated, controller.User.Identity.Name, controller.Request.AnonymousID, sb); _log.Debug(log); } return controller.Request.IsAuthenticated ? controller.User.Identity.Name : controller.Request.AnonymousID; } I can see in the log that user realy get the same cookievalue for .ASPXANONYMOUS even if they have different IP. Just to be safe I removed dependency injection for the FormsAuthentication. I dont use OutputCaching. My web.config has this setting for authentication: <anonymousIdentification enabled="true" cookieless="UseCookies" cookieName=".ASPXANONYMOUS" cookieTimeout="30" cookiePath="/" cookieRequireSSL="false" cookieSlidingExpiration="true" /> <authentication mode="Forms"> <forms loginUrl="~/de/Account/Login" /> </authentication> Does anybody have an idea what else I could log or what I should have a look at?

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  • Panel not displaying while dowloading file

    - by James123
    I wrote download excel file in my code. If I click download button I need show ajax-load image (pnlPopup panel). But it is not displaying. I think because of Some "Response" statements (see below code). Download working fine, but simultaniously I want show loader panel too. <asp:Panel ID="pnlPopup" runat="server" visible="false"> <div align="center" style="margin-top: 13px;"> <asp:Image runat ="server" ID="imgDownload" src="Images/ajax-loader.gif" alt="" /> <br /> <span class="updateProgressMessage">downloading ...</span> </div> Protected Sub btnDownload_Click(ByVal sender As Object, ByVal e As EventArgs) 'Handles btnDownload.Click' Try pnlPopup.Visible = True Dim mSurvey As New Survey Dim mUser As New User Dim dtExcel As DataTable mUser = CType(Session("user"), User) dtExcel = mSurvey.CreateExcelWorkbook(mUser.UserID, mUser.Client.ID) Dim filename As String = "Download.xls" InitializeWorkbook() GenerateData(dtExcel) Response.ContentType = "application/vnd.ms-excel" Response.AddHeader("Content-Disposition", String.Format("attachment;filename={0}", filename)) Response.Clear() Response.BinaryWrite(WriteToStream.GetBuffer) Response.End() Catch ex As Exception Finally End Try End Sub

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  • help convert pop3 connection to imap

    - by MyHeadHurts
    tcpClient.Connect(hostName, 110) Dim networkStream As NetworkStream = tcpClient.GetStream() Dim bytes(tcpClient.ReceiveBufferSize) As Byte Dim sendBytes As Byte() networkStream.Read(bytes, 0, CInt(tcpClient.ReceiveBufferSize)) sendBytes = Encoding.ASCII.GetBytes("User " + userName + vbCrLf) networkStream.Write(sendBytes, 0, sendBytes.Length) sTemp = networkStream.Read(bytes, 0, CInt(tcpClient.ReceiveBufferSize)) sendBytes = Encoding.ASCII.GetBytes("Pass " + userPassword + vbCrLf) networkStream.Write(sendBytes, 0, sendBytes.Length) sTemp = networkStream.Read(bytes, 0, CInt(tcpClient.ReceiveBufferSize)) sendBytes = Encoding.ASCII.GetBytes("STAT" + vbCrLf) networkStream.Write(sendBytes, 0, sendBytes.Length) sTemp = networkStream.Read(bytes, 0, CInt(tcpClient.ReceiveBufferSize)) sendBytes = Encoding.ASCII.GetBytes("RETR " + messageNumber + vbCrLf) networkStream.Write(sendBytes, 0, sendBytes.Length) networkStream.Read(bytes, 0, CInt(tcpClient.ReceiveBufferSize)) returnMessage = Encoding.ASCII.GetString(bytes) EmailContent.Text = returnMessage sendBytes = Encoding.ASCII.GetBytes("QUIT" + vbCrLf) networkStream.Write(sendBytes, 0, sendBytes.Length) tcpClient.Close() Catch ex As Exception EmailContent.Text = "Could not retrieve email or your inbox is empty" End Try

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  • Want to build simple SQL admin interface to change a few values in a table.

    - by Adam McC
    i am currently building a system in MSSQL 2K5. i have a table that holds information about certain insurance schemes such as overheads and other things. these values will change occasionally and currently i administer the database straight through the management Studio. i would like to build a simple interface that will allow my colleagues to change these values by selecting the company in a dropdown and the current values will populate. they can then edit these values and submit them to the database. is this possible in the current Visual Studio supplied with MSSQL server 2K5 or do i need to get another product. i am confident that with the help of stack overflow and google i can build this myself, but i need pointed in the right direction as to which environment would be easiest and best to start building it. Many thanks, adam

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  • ModelBindingContext ModelName

    - by user195910
    Can anyone explain where the ModelName gets populated from? Looked in MSDN documentation and no explaination here. I am creating a custom model binder and within it I get null for the following: var result = bindingContext.ModelName);

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  • How Do I insert Data in a table From the Model MVC?

    - by user54197
    I have data coming into my Model, how do I setup to insert the data in a table? public string Name { get; set; } public string Address { get; set; } public string City { get; set; } public string State { get; set; } public string Zip { get; set; } public Info() { using (SqlConnection connect = new SqlConnection(connections)) { string query = "Insert Into Personnel_Data (Name, StreetAddress, City, State, Zip, HomePhone, WorkPhone)" + "Values('" + Name + "','" + Address + "','" + City + "','" + State + "','" + Zip + "','" + ContactHPhone + "','" + ContactWPhone + "')"; SqlCommand command = new SqlCommand(query, connect); connect.Open(); command.ExecuteNonQuery(); } } The Name, Address, City, and so on is null when the query is being run. How do I set this up?

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  • Best approch for building link in JQuery with paramaters

    - by MrW
    Hi, Very new to JQuery and MVC and webdevelopment over all. I'm now trying to accomplish this and is asking for a bit of advise: I'm basically trying to build a filter with 4 input elements, and 1 output. I have 4 select (drop down) elements in my page. As soon as one of them is changed, I need to build a href and get the partial view with the return values. My questionis now if I should try to build the href in the select element or if I can do it once in jquery, and don't have to have duplicated code. How would I accomplish this?

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  • Inject Html Into a View Programmatically

    - by madcapnmckay
    Hi, I have a tricky problem and I'm not sure where in the view rendering process to attempt this. I am building a simple blog/CMS in MVC and I would like to inject a some html (preferably a partial view) into the page if the user is logged in as an admin (and therefore has edit privileges). I obviously could add render partials to master pages etc. But in my system master pages/views are the "templates" of the CMS and therefore should not contain CMS specific <% % markup. I would like to hook in to some part of the rendering process and inject the html myself. Does anyone have any idea how to do this in MVC? Where would be the best point, ViewPage, ViewEngine? Thanks, Ian

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  • Gridview rowcommand after refreshing

    - by xt_20
    I have a gridview inside an updatepanel. After updating the gridview, accessing the individual rows does not seem to give the right row. For example: protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e) { GridViewRow row = ((e.CommandSource as Control).NamingContainer as GridViewRow); Row from the above code gives the values from the gridview before the gridview is refreshed/updated. Anyone knows how to get the updated values?

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  • Compiling code at runtime, loading into current appdomain.

    - by Richard Friend
    Hi Im compiling some code at runtime then loading the assembly into the current appdomain, however when i then try to do Type.GetType it cant find the type... Here is how i compile the code... public static Assembly CompileCode(string code) { Microsoft.CSharp.CSharpCodeProvider provider = new CSharpCodeProvider(); ICodeCompiler compiler = provider.CreateCompiler(); CompilerParameters compilerparams = new CompilerParameters(); compilerparams.GenerateExecutable = false; compilerparams.GenerateInMemory = false; foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies()) { try { string location = assembly.Location; if (!String.IsNullOrEmpty(location)) { compilerparams.ReferencedAssemblies.Add(location); } } catch (NotSupportedException) { // this happens for dynamic assemblies, so just ignore it. } } CompilerResults results = compiler.CompileAssemblyFromSource(compilerparams, code); if (results.Errors.HasErrors) { StringBuilder errors = new StringBuilder("Compiler Errors :\r\n"); foreach (CompilerError error in results.Errors) { errors.AppendFormat("Line {0},{1}\t: {2}\n", error.Line, error.Column, error.ErrorText); } throw new Exception(errors.ToString()); } else { AppDomain.CurrentDomain.Load(results.CompiledAssembly.GetName()); return results.CompiledAssembly; } } This bit fails after getting the type from the compiled assembly just fine, it does not seem to be able to find it using Type.GetType.... Assembly assem = RuntimeCodeCompiler.CompileCode(code); string typeName = String.Format("Peverel.AppFramework.Web.GenCode.ObjectDataSourceProxy_{0}", safeTypeName); Type t = assem.GetType(typeName); //This works just fine.. Type doesntWork = Type.GetType(t.AssemblyQualifiedName); Type doesntWork2 = Type.GetType(t.Name); ....

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  • C# delegate or Func for 'all methods'?

    - by Michel
    Hi, i've read something about Func's and delegates and that they can help you to pass a method as a parameter. Now i have a cachingservice, and it has this declaration: public static void AddToCache<T>(T model, double millisecs, string cacheId) where T : class public static T GetFromCache<T>(string cacheId) where T : class So in a place where i want to cache some data, i check if it exists in the cache (with GetFromCache) and if not, get the data from somewhere, and the add it to the cache (with AddToCache) Now i want to extend the AddToCache method with a parameter, which is the class+method to call to get the data Then the declaration would be like this public static void AddToCache<T>(T model, double millisecs, string cacheId, Func/Delegate methode) where T : class Then this method could check wether the cache has data or not, and if not, get the data itself via the method it got provided. Then in the calling code i could say: AddToCache<Person>(p, 10000, "Person", new PersonService().GetPersonById(1)); AddToCache<Advert>(a, 100000, "Advert", new AdvertService().GetAdverts(3)); What i want to achieve is that the 'if cache is empty get data and add to cache' logic is placed on only one place. I hope this makes sense :) Oh, by the way, the question is: is this possible?

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  • MVC2 IModelBinder and parsing a string to an object - How do I do it?

    - by burnt_hand
    I have an object called Time public class Time{ public int Hour {get;set;} public int Minute {get;set;} public static Time Parse(string timeString){ //reads the ToString()'s previous output and returns a Time object } override protected string ToString(){ //puts out something like 14:50 (as in 2:50PM) } } So what I want is for the automatic model binding on the Edit or Create action to set this Time instance up from a string (i.e. feed the Parse method with the string and return the result). The reason I am doing this is that I will have a DropDownList with selectable times. The value of each option will be the parser readable string. Can anyone provide an example BindModel method from the IModelBinder interface?

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  • AJAX: Statusbar: force update of UpdatePanel while function executes

    - by John Bourke
    Hi Guys, I have a label inside an update panel which I wouldl ike to use as a status bar. Basically the user clicks a button which executes a main fucntion that performs a series of tasks. I'd like to inform the user as to the state of the function as it progresses e.g.: Stage 1: Retrieving data... Stage 2: Calculating values... Stage 3: Printing values... Stage 4: Done! I've tried updating the updatepanel directly from the function but it only updates the panel at the end of function (stage 4) and shows "Done!" (which I understand is how it should work). I've been looking into timers and threads to try and update the panel seperate to the main function but I thought I'd post here incase anyone has any better ideas? Thanks for any help in advance! John bourkeyo is offline Reply With Quote

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  • some problems with jquery

    - by CoffeeCode
    I'm using AJAX_POSTUP. When i make a request it sends a file to a bowser [offers to download] (the files content are params of the action methods). Does anyone know whats going on and how i can avoid this problem??? i'm not aware of other plugins such as AJAX_POSTUP

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  • Exporting data from a gridview to different excel worksheets

    - by Alex
    I am binding data from a dataset to a grid and exporting data from the grid to an excel.if the the number of items in the grid is greater than 50000,an error message is displayed. So i want to split the data and display it in different worksheets in excel.(Am working in a web application) using this code for exporting to excel gvExcel.DataSource = DTS; gvExcel.DataBind(); Response.AddHeader("content-disposition", "attachment; filename= filename.xls"); Response.ContentType = "application/excel"; StringWriter sw = new StringWriter(); HtmlTextWriter htw = new HtmlTextWriter(sw); gvExcel.RenderControl(htw); // Style is added dynamically Response.Write(style); Response.Write(sw.ToString()); Response.End(); Can anyone help me on this??

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  • Determine how many bytes of a request have been read/received?

    - by vdhant
    Hey guys Just wondering if anyone has any idea how you can determine how many bytes of a request have been read/received by the server... In other words how do I stream http request... In that, users are uploading files and I want to report on a perotic basis how many bytes have been read/received so far. Just wondering if anyone has any ideas on how I might do this... Cheers Anthony

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  • How do I get a delete trigger working using fluent API in CTP5?

    - by user668472
    I am having trouble getting referential integrity dialled down enough to allow my delete trigger to fire. I have a dependent entity with three FKs. I want it to be deleted when any of the principal entities is deleted. For principal entities Role and OrgUnit (see below) I can rely on conventions to create the required one-many relationship and cascade delete does what I want, ie: Association is removed when either principal is deleted. For Member, however, I have multiple cascade delete paths (not shown here) which SQL Server doesn't like, so I need to use fluent API to disable cascade deletes. Here is my (simplified) model: public class Association { public int id { get; set; } public int roleid { get; set; } public virtual Role role { get; set; } public int? memberid { get; set; } public virtual Member member { get; set; } public int orgunitid { get; set; } public int OrgUnit orgunit { get; set; } } public class Role { public int id { get; set; } public virtual ICollection<Association> associations { get; set; } } public class Member { public int id { get; set; } public virtual ICollection<Association> associations { get; set; } } public class Organization { public int id { get; set; } public virtual ICollection<Association> associations { get; set; } } My first run at fluent API code looks like this: protected override void OnModelCreating(System.Data.Entity.ModelConfiguration.ModelBuilder modelBuilder) { DbDatabase.SetInitializer<ConfDB_Model>(new ConfDBInitializer()); modelBuilder.Entity<Member>() .HasMany(m=>m.assocations) .WithOptional(a=>a.member) .HasForeignKey(a=>a.memberId) .WillCascadeOnDelete(false); } My seed function creates the delete trigger: protected override void Seed(ConfDB_Model context) { context.Database.SqlCommand("CREATE TRIGGER MemberAssocTrigger ON dbo.Members FOR DELETE AS DELETE Assocations FROM Associations, deleted WHERE Associations.memberId = deleted.id"); } PROBLEM: When I run this, create a Role, a Member, an OrgUnit, and an Association tying the three together all is fine. When I delete the Role, the Association gets cascade deleted as I expect. HOWEVER when I delete the Member I get an exception with a referential integrity error. I have tried setting ON CASCADE SET NULL because my memberid FK is nullable but SQL complains again about multiple cascade paths, so apparently I can cascade nothing in the Member-Association relationship. To get this to work I must add the following code to Seed(): context.Database.SqlCommand("ALTER TABLE dbo.ACLEntries DROP CONSTRAINT member_aclentries"); As you can see, this drops the constraint created by the model builder. QUESTION: this feels like a complete hack. Is there a way using fluent API for me to say that referential integrity should NOT be checked, or otherwise to get it to relax enough for the Member delete to work and allow the trigger to be fired? Thanks in advance for any help you can offer. Although fluent APIs may be "fluent" I find them far from intuitive.

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