.net program run's slower on first time

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- Previous
  - 1
    - Comparison between .net1.0, 1.1 and 2.0 Hello I would like to get the comparison [feature] between .net framework 1.0, 1.1 and 2.0. I would like to develop an application on .net platform and would like to use one of these. Please help me in deciding/recommenrding the best framework. As I have to tell the client about Why I am going for this framework. Hope to get an early response. Thanks in advance. SR Tag: .net program run's slower on first time Tag: 83682
  - 2
    - How to intercept what HttpWebRequest sends? Hello everybody, I'm currently thinking about a way how to intercept the binary data that HttpWebRequest sends over the network. The class is a VERY helpful thing but there are a few things that I obviously can't do with it. In particular I'd like to have control over the header REMOTE_ADDR. I have server application that uses REMOTE_ADDR and other headers for identifying clients beyond cookies (which can easily be forged or stolen). For load tests I'd have to send requests from PCs with "different" internal IP addresses. As far as I know the REMOTE_ADDR is only for information purposes and is not involved in any low-level network routing and addressing. Anybody has an idea? Thanks, Christoph Tag: .net program run's slower on first time Tag: 83680
  - 3
    - Erratic Timing after .Net1.1 SP1 I have encountered several areas of eratic timing problems when using SP1. They seem to be memory management related. GC.Collect, Debug.writeline, and several graphics functions for example Downgrading back to .Net 1.1 has fixed the problems. g. Tag: .net program run's slower on first time Tag: 83672
  - 4
    - Negative Numbers? Hello, I have some textboxes that are doing addition: Dim AString As Double AString = Convert.ToDouble(TextBox1.Text) - Convert.To(DoubleTextBox2.Text) TextBox3.Text = AString.ToString("#,##0.00;(#,##0.00);0.00") When the result is negative it is displayed as "(46)" or whatever the value is. This makes it impossible to test for a negative number to make further additions: TextBox5.text = Convert.ToDouble(TextBox3.text) + Convert.ToDouble(Textbox4.text) Is there a work-around for this? I must have negative numbers that can be added together. Thanks, Chuck Tag: .net program run's slower on first time Tag: 83666
  - 5
    - Windows 2003 + .Net-Web Application + Oracle 8.1.7 Hello, i have build a .NET-web aplication using oracle db 8.1.7. via oledb. on my testserver - win2000 server - all works fine but on my real server - win2003 server - i get a error, means he cant find the connection or database provider. i have installed oracle net8-client on it and test it with a desktop application whos working. for the "iusr_" - i gave full access-rights to the oracle-path and administrator-rights.... but no solve any suggestion? regards tommy ---------------------------------------- HangulHanjaFastConversion-Eigenschaft True if Microsoft Word automatically converts a word with only one suggestion during conversion between hangul and hanja. Read/write Boolean. ---------------------------------------- *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it! Tag: .net program run's slower on first time Tag: 83662
  - 6
    - Forms inheritance best practice My application will have various forms for editing my business objects. All the objects to be edited on the various forms will either derive from a common class or implement a common interface. Let's just say it's an interface for sake of this discussion. There is a lot of common functionality between the forms, of course. Using forms inheritance seemed like a great way to reuse that common code. Of course there are some parts of the common code that need to interact with the interface, but the actual business object appropriate for the particular derived form will of course be instantiated by the derived form. The controls specific to editing that type of business object will of course be on the derived form. So, it seemed logical to create some abstract methods and properties in the base form. That means the class itself must be abstract. Not so fast - the designer complains it needs to instantiate the base class and can't because it's abstract. Hmmm.. That leaves me with two options that I can see. I'm just wondering which is considered a better practice, or if there's a third I haven't thought of. 1) Declare protected fields (of the interface Type) in the base form which could be set directly in the derived form in all the appropriate places. 2) Declare the needed methods and properties as virtual in the base class. In the base class each simply throws a NotSupportedException since only the override in the derived form should actually be used. Tag: .net program run's slower on first time Tag: 83661
  - 7
    - EventLog entries sort I want to find the most recent entry, or all entries after a given date/time using the EventLog class. Do I have to iterate through all entries, or are they sorted so I can start from index 0 and just iterate until the entry date is older than a given date? Tag: .net program run's slower on first time Tag: 83660
  - 8
    - AssemblyVersionAttribute Hi all, According to this document, the auto-generated revision number for an assembly is the number of seconds since midnight divided by 2. I'm testing this with my code but the revision comes out 60 minutes ahead. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemreflectionassemblyversionattributeclasstopic.asp Here's the code: DateTime now = DateTime.Now; DateTime jan2000 = new DateTime(2000, 1, 1); int build = (int)now.Subtract(jan2000).TotalDays; int revision = (int)now.Subtract(DateTime.Today).TotalSeconds / 2; textBox1.Text += "assembly version: " + Assembly.GetExecutingAssembly().GetName().Version.ToString() + Environment.NewLine; textBox1.Text += "Build: " + build + Environment.NewLine; textBox1.Text += "Rev: " + revision + Environment.NewLine; Here's the output: assembly version: 1.0.1731.23390 Build: 1731 Rev: 25192 Any ideas on how to properly calculate the Revision number? Thanks, -Oleg. Tag: .net program run's slower on first time Tag: 83656
  - 9
    - Problems running .NET apps on other machines I'm fairly new to distributing .NET applications, and so far no one is able to use the apps I create. They do run on all 3 of my machines. I include the dotnetfxredist with the setup files. One person cannot even install the framework from Windows Update. It's giving them errors and I'm unable to troubleshoot over the phone. This pretty much blows since I've spent so much time developing in .NET for my user base and they cannot use it! Is there a way to convert my app to Windows executable or something? What are my options? -Max Tag: .net program run's slower on first time Tag: 83646
  - 10
    - Help!!! Problems with .net framework 1.1 and SQL Sever i install the new .net framework at my server, so now all the applications that before were working very well , i receive this message: The specified module could not be found. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.IO.FileNotFoundException: The specified module could not be found. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [FileNotFoundException: The specified module could not be found.] System.EnterpriseServices.Platform.Initialize() +503 System.EnterpriseServices.ResourcePool..ctor(TransactionEndDelegate cb) +11 System.Data.SqlClient.ConnectionPool..ctor(DefaultPoolControl ctrl) +797 System.Data.SqlClient.PoolManager.FindOrCreatePool(DefaultPoolControl ctrl) +170 System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnectionString options, Boolean& isInTransaction) +358 System.Data.SqlClient.SqlConnection.Open() +384 OrinocoIron.clsProd.CheckDate(String Fecha) OrinocoIron.Reportes.Reporte() OrinocoIron.Reportes.Page_Load(Object sender, EventArgs e) System.EventHandler.Invoke(Object sender, EventArgs e) +0 System.Web.UI.Control.OnLoad(EventArgs e) +67 System.Web.UI.Control.LoadRecursive() +35 System.Web.UI.Page.ProcessRequestMain() +750 Tag: .net program run's slower on first time Tag: 83644
  - 11
    - intranet and framework basics I'm trying to get a Windows Forms application to work on an intranet (not including my dev. comp.) It gives me the "unhandled exception error" so I found an article about strong names. I'm still lacking the basic knowledge of what's goig on when an application runs. First of all, does the server on which the application exists have to have the Framework installed or does the application run on the client machines? (What happens when they doubleclick the exe-file on the network share?) Once I copied the Strong name assemblies to the server I'm supposed to configure CAS Policy with custom code group, using Mscorcfg.msc. Where do I do that? On the Server or the Client machines? Thanks /Miro Tag: .net program run's slower on first time Tag: 83641
  - 12
    - como trabajar con apis de windows, en .net ? ¿Como se trabaja con las Api de Windows, utilizando C# .Net ? gracias... --------------------------------------------------------------------------- --------------------------------------------------------------------------- Utilizando .Net, como puedo obtener la dirección ip o el nombre del cliente remoto que está conectado por Terminal Service a un Servidor de Terminal ? En el Terminal Servide Manager me muestra el nombre del cliente remoto, o sea del equipo remoto, pero no se como obtenerlo utilizando C# .Net. gracias. Tag: .net program run's slower on first time Tag: 83631
  - 13
    - method call only from "allowed" assemblies Hi, I was thinking of a "security concept" (- although it may already exist in the .NET Framework): to allow only some assemblies to call a method form another assembly... something like... a public method can be called by another assembly within an application but also by anyone from outside; this mechanism would check at method level/above method level who is calling and allow/disallow the call. Is this already implemented in .NET Framework? I would greatly appreciate some feedback on how this may be implemented (using StackTrace maybe)... Thank you, Daniel Tag: .net program run's slower on first time Tag: 83629
  - 14
    - Can i inherit from TabControl and use the designer? Hi, Is it possible to inherit from a control and use it's desginer? I am trying to inherit from TabControl but than i dont have the default designer so i cannot put pages at design time thanks in advance. Tag: .net program run's slower on first time Tag: 83627
  - 15
    - timeout to NTD winform hello i write a simple winform app to test the NTD(no-touch deployment) feature of dot net,after deploy it to the iis server,it works well,i can invoke it from either commandline or ie browser. but i found that after it is started up ,i IGNORE it,that means i don't operate it,after a wile,it is automatically closed.why,are there some .net configuration to incharge the timeout? how can i make the winform app that start from the GAC keep PERMANENTLY running in the client side,even no body touch it. thank you!! Tag: .net program run's slower on first time Tag: 83623
  - 16
    - timeout to NTD winform hello i write a simple winform app to test the NTD(no-touch deployment) feature of dot net,after deploy it to the iis server,it works well,i can invoke it from either commandline or ie browser. but i found that after it is started up ,i IGNORE it,that means i don't operate it,after a wile,it is automatically closed.why,are there some .net configuration to incharge the timeout? how can i make the winform app that start from the GAC keep PERMANENTLY running in the client side,even no body touch it. thank you!! Tag: .net program run's slower on first time Tag: 83622
  - 17
    - HTTP violation Hi I've made a part of a program that makes a http web request with .net classes HttpWebRequest and HttpWebResponse. It's been working fine up til now when one of our customers has been recieving the following WebException: "The underlying connection was closed: The server committed an HTTP protocol violation. " I've been "googling" a bit and read that it might help to set the KeepAlive property to false and set the http version to 1.0, but neither have helped. Thanks in advance! /peter Tag: .net program run's slower on first time Tag: 83617
  - 18
    - Share common code I'm a newbie to Dot NET. Can anyone show me how to compile a reusable code repository so that codes can be reused by a number of Web Forms in the .NET Framework. In the classic ASP, Include files are used but I don't know how to do it in C#.Net. Any help is greatly appreciated. Tag: .net program run's slower on first time Tag: 83608
  - 19
    - Repeater Problems in Framework 2.0 Hi, Quick Question. I am having problems with nesting repeaters in the Framework 2.0. The code below works in framework 1.0 & 1.1, but does not in 2.0. The inner repeater does not appear to bind properly. I am using the Visual Web Developer 2005 Express Edition and the framework which is downloaded with it (downloaded 2 days ago). Can anybody let me know if I am doing something wrong or is this a bug? Thanks in advance. Richard -- Code Starts Here -- <%@ Page Language="c#" %> <%@ Import Namespace="System.Data" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <script runat="server"> void Page_Load(object sender, EventArgs e) { #region Make a dummy dataset and fill it with data DataSet ds = new DataSet(); DataTable dt = ds.Tables.Add("outer"); dt.Columns.Add("ID", typeof(int)); DataTable dt2 = ds.Tables.Add("inner"); dt2.Columns.Add("ID", typeof(int)); dt2.Columns.Add("ID_link", typeof(int)); DataRow dr; DataRow dr2; for (int i = 0; i < 10; i++) { dr = dt.NewRow(); dr[0] = i; dt.Rows.Add(dr); for (int j = 0; j < 10; j++) { dr2 = dt2.NewRow(); dr2[0] = j; dr2[1] = i; dt2.Rows.Add(dr2); } } #endregion //Add a relation and bind to outer repeater DataRelation dsRel = new DataRelation("link", ds.Tables["outer"].Columns[0], ds.Tables["inner"].Columns[1]); ds.Relations.Add(dsRel); RepOuter.DataSource = ds.Tables["outer"].DefaultView; RepOuter.DataBind(); } void RepOuter_ItemDataBound(object sender, RepeaterItemEventArgs e) { DataRowView dv = e.Item.DataItem as DataRowView; Repeater nestedRepeater = e.Item.FindControl("RepInner") as Repeater; if (nestedRepeater != null) { //Follow relation and bind to inner repeater nestedRepeater.DataSource = ((DataRowView)e.Item.DataItem).CreateChildView("link"); nestedRepeater.DataBind(); } } </script> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server" id="Head1" name="Head1"> <title>Test Page</title> </head> <body> <form id="form1" runat="server"> <div> <asp:Repeater ID="RepOuter" Runat="server" OnItemDataBound="RepOuter_ItemDataBound"> <ItemTemplate> Line <%# ((DataRowView)Container.DataItem)["ID"] %> <br /> <asp:Repeater ID="RepInner" Runat="server"> <ItemTemplate> Nested Line <%# ((DataRowView)Container.DataItem)["ID"] %> of Line <%# ((DataRowView)Container.DataItem)["ID_Link"] %> <br /> </ItemTemplate> </asp:Repeater> </ItemTemplate> </asp:Repeater> </div> </form> </body> </html> -- Code Ends Here -- Tag: .net program run's slower on first time Tag: 83606
  - 20
    - Key processing in .NET Is there any good article about processing keys in .net ? I see things like ProcessDialogKey, IsInputKey, IsInputChar, and mentions of preprocessing certain keys, and the whole area is confusing to me without a good general explanation. In Win32 I can override WM_GETDLGCODE in my derived control to handle certain dialog keys directly in my control ( arrows, tabs ). The documentation on processing keys which I am trying to understand does not make it plain how I can use the .net functionality to do what I want to do rather. I realize that I can continue to handle WM_GETDLGCODE in my control's Window procedure but would prefer to use the .net functionality instead if it is a replacement for the lower level WM_GETDLGCODE Tag: .net program run's slower on first time Tag: 83597
  - 21
    - Calendar without Autopostback Hi I need a calendar user control with out refresh.this code is refreshing the page for every action like change to next month or next year. Thanx Ramakrishna --popupcalendar.ascx--- <%@ Control Language="vb" AutoEventWireup="false" Codebehind="popUpCalendar.ascx.vb" Inherits="pmap110.popUpCalendar" enableViewState="True"%> <asp:panel id="pnlCalendar" style="Z-INDEX: 101; LEFT: 0px; POSITION: absolute; TOP: 0px" Width="145px" Height="176px" runat="server" BackColor="#000071"> <asp:Calendar id="Calendar1" Width="145" Height="160px" runat="server" BackColor="White" BorderColor="Black" BorderStyle="Solid" NextMonthText="<IMG src='/images/arrowleft.gif' border='0'>" PrevMonthText="<IMG src='/images/arrowright.gif' border='0'>"> <TodayDayStyle BackColor="AliceBlue"></TodayDayStyle> <DayStyle Font-Size="8pt" Font-Names="Arial"></DayStyle> <DayHeaderStyle Font-Size="10pt" Font-Underline="True" Font-Names="Arial" BorderStyle="None" BackColor="#E0E0E0"></DayHeaderStyle> <SelectedDayStyle Font-Size="8pt" Font-Names="Arial" Font-Bold="True" ForeColor="White" BackColor="Navy"></SelectedDayStyle> <TitleStyle Font-Size="10pt" Font-Names="Arial" Font-Bold="True" ForeColor="White" BackColor="Navy"></TitleStyle> <OtherMonthDayStyle ForeColor="Gray"></OtherMonthDayStyle> </asp:Calendar> <TABLE WIDTH="182px" BORDER="0" CELLSPACING="1" CELLPADDING="1"> <TR> <TD align=left ><asp:imagebutton id="ImageButton2" AlternateText="Previous Year" runat="server" ImageUrl="Images\arrowright.gif" CausesValidation="False"></asp:imagebutton></TD> <TD align=center ><asp:button id="btnClose" Width="58px" runat="server" Text="Close" Font-Size="XX-Small"></asp:button></TD> <TD align=right ><asp:imagebutton id="Imagebutton1" AlternateText="Next Year" BorderColor=#ff3300 runat="server" ImageUrl="Images\arrowleft.gif" CausesValidation="False"></asp:imagebutton></TD> </TR> </TABLE> </asp:panel> ---popupcalendar.ascx.vb--- Public Class popUpCalendar : Inherits System.Web.UI.UserControl Implements IPostBackEventHandler ' Defines the Click event. Public Event Click As EventHandler Protected WithEvents Calendar1 As System.Web.UI.WebControls.Calendar Protected WithEvents btnClose As System.Web.UI.WebControls.Button Protected WithEvents ImageButton2 As System.Web.UI.WebControls.ImageButton Protected WithEvents Imagebutton1 As System.Web.UI.WebControls.ImageButton Protected WithEvents pnlCalendar As System.Web.UI.WebControls.Panel #Region " Web Form Designer Generated Code " 'This call is required by the Web Form Designer. <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() End Sub Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init 'CODEGEN: This method call is required by the Web Form Designer 'Do not modify it using the code editor. InitializeComponent() End Sub #End Region ' Method of IPostBackEventHandler that raises change events. Public Sub RaisePostBackEvent(ByVal eventArgument As String) Implements IPostBackEventHandler.RaisePostBackEvent OnClick(EventArgs.Empty) End Sub '' Invokes delegates registered with the Click event. Protected Overridable Sub OnClick(ByVal e As EventArgs) RaiseEvent Click(Me, e) End Sub Protected Overrides Sub Render(ByVal output As HtmlTextWriter) output.Write("<INPUT TYPE=submit name=" & Me.UniqueID & _ " Value='Click Me' />") End Sub Public Sub displayCalendar(ByVal sCalToolText As String, _ ByVal dSelectedDate As Date, _ ByVal sDateFieldName As String, _ ByVal iTop As Integer, _ ByVal iLeft As Integer) '************************************************************************ 'Purpose: Displays & hides the calendar. 'Input: sCalToolText - Text to use as the tooltip text for the calendar ' dSelectedDate - Date to set as the selected date for the calendar ' txtDate - string containing name of applicable textbox ' iTop - top position of calendar ' iLeft - left position of calendar '************************************************************************ 'If the calendar is visible, but it is displayed for a different field 'than the one selected, then hide it If pnlCalendar.Visible = True And Calendar1.Attributes.Item("selectedfield") <> sDateFieldName Then hideCalendar() End If 'If the calendar is hidden, then position it and show it, otherwise hide it If pnlCalendar.Visible = False Then 'Set the location of the calendar pnlCalendar.Style.Item("top") = iTop pnlCalendar.Style.Item("left") = iLeft 'If a valid date is passed in, then set this date as the selected date 'on the calendar. Otherwise display the current month and year If IsDate(dSelectedDate) Then 'Setting the selected date property will tell the calendar to 'highlight the date assigned to this property. Calendar1.SelectedDate = dSelectedDate 'Setting the visible date property will tell the calendar to 'initially display the month and year of the date assigned to 'this property. Calendar1.VisibleDate = dSelectedDate Else Calendar1.SelectedDate = #12:00:00 AM# Calendar1.VisibleDate = Now End If 'Set the tooltip text and id of the selected field Calendar1.ToolTip = sCalToolText Calendar1.Attributes.Item("SelectedField") = sDateFieldName 'Show the calendar pnlCalendar.Visible = True Else 'Hide the calendar hideCalendar() End If End Sub Public Sub Calendar1_SelectionChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Calendar1.SelectionChanged '************************************************************************ 'Purpose: Write the selected date to the appropriate text field. '************************************************************************ Dim txtDate As TextBox 'get the textbox that the date should be written to txtDate = Page.FindControl(Calendar1.Attributes.Item("SelectedField")) 'Write value to appropriate textbox txtDate.Text = Format(Calendar1.SelectedDate, "MMM dd, yyyy") 'Hide the calendar hideCalendar() End Sub Private Sub Calendar1_DayRender(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DayRenderEventArgs) Handles Calendar1.DayRender 'make the other months dates invisible. If e.Day.IsOtherMonth Then e.Cell.Text = "" e.Cell.BorderStyle = BorderStyle.None e.Cell.Height = New Unit("0px") End If If (e.Day.IsToday) Then e.Cell.BackColor = System.Drawing.Color.Red End If End Sub Public Sub hideCalendar() 'Hide the calendar pnlCalendar.Visible = False End Sub Private Sub btnClose_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClose.Click hideCalendar() End Sub Private Sub ImageButton2_Click(ByVal sender As System.Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton2.Click If Year(Calendar1.VisibleDate) = 1 Then Calendar1.VisibleDate = Now End If Calendar1.VisibleDate = Calendar1.VisibleDate.AddYears(-1) End Sub Private Sub Imagebutton1_Click(ByVal sender As System.Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles Imagebutton1.Click If Year(Calendar1.VisibleDate) = 1 Then Calendar1.VisibleDate = Now End If Calendar1.VisibleDate = Calendar1.VisibleDate.AddYears(1) End Sub End Class ---------------- Tag: .net program run's slower on first time Tag: 83593
  - 22
    - Design issue with O/R mapping Hi. Im have asked for recommendation regarding the best production ready O/R mapping tools for .net. I got that. Since im an old, ok maybe not old (only 27), Java programmer patterns and developement with tiers is of great importance for me. I have a problem with the famours anti-pattern Tier leakage. In the Java world I used POJO´s (simple java classes) as value objects. These value objects was used for cayrring data between the tiers. So if i changed the persistence tier the rest of the code still relyed in the same POJO´s. Now with the .net O/R they all genereate eg. EmployeeEntity wich inherit from EntityBase2 (LLBL PRO). If I pass the object from my persistence layer to the business layer and down to the view I have just made a seriuos "maintaince bug" the "tier leakage". If i wanna use eg. the EntityBroker im so to say fucked. I have to refactor ALL and EVERY class witch depend on the EmployeEntity. Have anyone thougt about this and come up with an solution? Is the persistence tools wich can map PURE c# classes to realtionel classes as the Java Hibernate? And why have so few chosen this way of doing it? Is it hard to map eg. Customer c = new Customer(); // fill object adapter.SaveEntity(c); And go find what this Customer really maps to int the Database? Anders Jacobsen Tag: .net program run's slower on first time Tag: 83592
  - 23
    - Method RVAs: offset or VA? Greetings, I'm writing an application that uses the Profiler API and the unmanaged metadata API to obtain metadata for modules from the ICorProfilerCallback::ModuleLoadFinished() event as well as for executables that I map into memory myself. In both cases I'm able to obtain the IModuleInfo iface and enumerate the methods. I've noticed that the method RVA returned by GetMethodProps() is sometimes a real RVA and sometimes an offset. This causes havok because I'm trying to access the method's bytecode in memory. If its an RVA I have to call ImageRvaToVa(), otherwise I just have to add it to the base load address. It seems to be treated as an offset if the CLR has loaded the module and as a RVA if the file was manually mapped into memory. Is this true? Strangely, Rotor always treats it as an RVA. If you look at CorMap::ReadHeaders() in cormap.cpp in Rotor you'll see a magic flag called bDataMap that proves that RVAs have a dual nature. Right now I have a kludge that calls ImageRvaToVa() and examines the first byte of the returned ptr. If its not TinyFormat or FatFormat then I treat the RVA as an offset. Is there a way, given a module's base load address, or perhaps a flag in the MethodProps, to determine if its RVAs are really RVAs or if they are offsets? Thanks! \\Marc Tag: .net program run's slower on first time Tag: 83591
  - 24
    - Design issue with O/R mapping Hi. Im have asked for recommendation regarding the best production ready O/R mapping tools for .net. I got that. Since im an old, ok maybe not old (only 27), Java programmer patterns and developement with tiers is of great importance for me. I have a problem with the famours anti-pattern Tier leakage. In the Java world I used POJO´s (simple java classes) as value objects. These value objects was used for cayrring data between the tiers. So if i changed the persistence tier the rest of the code still relyed in the same POJO´s. Now with the .net O/R they all genereate eg. EmployeeEntity wich inherit from EntityBase2 (LLBL PRO). If I pass the object from my persistence layer to the business layer and down to the view I have just made a seriuos "maintaince bug" the "tier leakage". If i wanna use eg. the EntityBroker im so to say fucked. I have to refactor ALL and EVERY class witch depend on the EmployeEntity. Have anyone thougt about this and come up with an solution? Is the persistence tools wich can map PURE c# classes to realtionel classes as the Java Hibernate? And why have so few chosen this way of doing it? Is it hard to map eg. Customer c = new Customer(); // fill object adapter.SaveEntity(c); And go find what this Customer really maps to int the Database? Anders Jacobsen Tag: .net program run's slower on first time Tag: 83590
  - 25
    - Calling Dispose instead of close, clear, .... Hello, I've written the following little helper function which calls Dispose on classes which implement the idisposable interface. Public Sub DisposeObject(ByVal DisposeAbleObject As IDisposable) If Not DisposeAbleObject Is Nothing Then DisposeAbleObject.Dispose() End If End Sub The reason for this is to avoid ugly looking finally clauses with lots of checking if an object ref is nothing before calling dispose on them. For example in a try finally block in which a connection is opnened, a transaction is started and an sqldatareader gets created which looks like this: try ..... finally if sqlconnection is nothing then sqlconnection.close end if if Transaction is nothing then Transaction.dispose end if if Datareader is nothing then Datareader.close end if end try i'd write this: try .... finally disposeobject(sqlconnection) disposeobject(transaction) disposeobject(sqldatareader) end try a lot better looking IMO. I dont have to worry about whether the ref is nothing or not. Now my question is this: Is this going to cause any strange behavior? I've tested it and it seems to work.. but im wondering if there could be any side effects since im not calling the specific Close of the datareader or sqlconnection, im calling the Dispose. The documentation says there's not much difference in calling Dispose instead of Close on a connection, but can i assume the same for any object that implements IDisposable? Thanks Tag: .net program run's slower on first time Tag: 83589
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  - 1
    - Calling Dispose instead of close, clear, .... Hello, I've written the following little helper function which calls Dispose on classes which implement the idisposable interface. Public Sub DisposeObject(ByVal DisposeAbleObject As IDisposable) If Not DisposeAbleObject Is Nothing Then DisposeAbleObject.Dispose() End If End Sub The reason for this is to avoid ugly looking finally clauses with lots of checking if an object ref is nothing before calling dispose on them. For example in a try finally block in which a connection is opnened, a transaction is started and an sqldatareader gets created which looks like this: try ..... finally if sqlconnection is nothing then sqlconnection.close end if if Transaction is nothing then Transaction.dispose end if if Datareader is nothing then Datareader.close end if end try i'd write this: try .... finally disposeobject(sqlconnection) disposeobject(transaction) disposeobject(sqldatareader) end try a lot better looking IMO. I dont have to worry about whether the ref is nothing or not. Now my question is this: Is this going to cause any strange behavior? I've tested it and it seems to work.. but im wondering if there could be any side effects since im not calling the specific Close of the datareader or sqlconnection, im calling the Dispose. The documentation says there's not much difference in calling Dispose instead of Close on a connection, but can i assume the same for any object that implements IDisposable? Thanks Tag: .net program run's slower on first time Tag: 83588
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    - How to use LosFormatter from win form application? How to serialize and object to use as a parameter in a URL? Hi, I need to serialize an object in such a way that it can be passed as parameter in a URL http://www.domain.com?object=%d793btng.... I did some reading and I came to the conclusion that I need to create a custom formatter and implements the IFormatter interface the problem is that I don't quit know how to implements the IFormatter.Serialize function 1.How do I get the attribute of each property? 2.How can i get all properties,i guess I need to use reflection? 2.How do I track the object which already Serialized(assuming the object contains other objects) Note that I cannot use binary formatter or other,since the code which do the deserialization is a client side java script thanks in advance. Tag: .net program run's slower on first time Tag: 83585
  - 3
    - .NET Remoting problem - exception "Object Reference not set to instance of an object" Hi, I need some help with a .NET Remoting problem - an "Object Reference not set to instance of an object"exception is thrown in the client when accessing methods of a remote object. Basically, I have a server implemented as a Windows Service, using a config file, and implementing an object from the General namespace. The server code is below. ////Data definitions namespace namespace General { /// <summary> /// Interface to access data object /// </summary> public interface ICustomerManager { Customer getCustomer(int id); int getAge(int id); } /// <summary> /// Data object implementation /// </summary> [Serializable] public class Customer { //put all functions in an interface protected int cust_id; public string firstName,lastName; public DateTime BirthDate; public Customer(int id) { cust_id = id; } } } /////////Server code namespace WindowsServiceSrvr { public class ServiceSrvr : System.ServiceProcess.ServiceBase { private ComponentModel.Container components = null; public static string SVC_NAME = "ServiceSrvr"; public static string cfgFile = "server.config"; public ServiceSrvr(){...} static void Main() { System.ServiceProcess.ServiceBase[] ServicesToRun; ServicesToRun = new ServiceProcess.ServiceBase[] { new ServiceSrvr() }; evt.Source = SVC_NAME; ServiceProcess.ServiceBase.Run(ServicesToRun); } protected override void OnStart(string[] args) { RemotingConfiguration.Configure(cfgFile); } } [Serializable] public class CustomerMgr : MarshalByRefObject, General.ICustomerManager { public CustomerMgr() { } public Customer getCustomer(int custId) { General.Customer cust = new Customer(custId); cust.BirthDate = new DateTime(1945,12,12); return cust; } public int getAge(int custId) { General.Customer cust = this.getCustomer(custId); TimeSpan tmp = DateTime.Today.Subtract(cust.BirthDate); return (int)tmp.Days/355; } } } My client uses a Generated_General.dll generated by soapsuds soapsuds -url:http://localhost:custSrvr?wsdl -oa:gen.dll The client code is: namespace ClientUsingService { /// <summary> /// Implementation of client - config file, soapsuds generated /// metaschema, and a server running as a windows service /// </summary> class Client { public static string cfgFile = "app.config"; [STAThread] static void Main(string[] args) { try { RemotingConfiguration.Configure(cfgFile); // Instantion CustomerMgr interface WindowsServiceSrvr.CustomerMgr custMgr = new WindowsServiceSrvr.CustomerMgr(); if(custMgr!=null) Console.WriteLine("Got server connection"); General.Customer cust = custMgr.getCustomer(5434); Console.WriteLine( cust.BirthDate.ToShortDateString()); // throws Invalid Reference Exception Console.WriteLine("Customer 5434 is {0} yrs old",custMgr.getAge(5443)); Console.ReadLine(); } catch(Exception ex) { Console.WriteLine(ex.Message); Console.WriteLine(ex.StackTrace); Console.ReadLine(); } } } } The problem is that when the methods of custMgr are called by the client the exception "Object Reference not set to an instance of an object" is thrown. I am at my wits end!! Please help explain what is wrong. Tag: .net program run's slower on first time Tag: 83580
  - 4
    - Help with Microsoft.ApplicationBlocks.data.dll Can someone e-mail me this DLL. I cannot get my .NET to compile the project code and I'm desperate to get my app to work. I just need this DLL so I can put it into my \BIN directory. TIA John Tag: .net program run's slower on first time Tag: 83578
  - 5
    - replacing html special characters Does the framework contain an object or a function that replaces html special characters by their html friendly metacharacters? Like & to & or < to < Thanks Tag: .net program run's slower on first time Tag: 83571
  - 6
    - When will version 2 be released Hi - When will version 2 be released of the .NET Framework. I am starting a new project that will take around 3-4 months. Would it be worth my while to start using version 2 and if so when does version 2 go public? - thanks - any advice would be gratefully received Cheers James Jenkins Tag: .net program run's slower on first time Tag: 83565
  - 7
    - Release Version not working Problem: App working OK in VS environment (VB.Net) and when using a debug build outside of VS enviroment.. Also works OK as release version in VS environment... But NOT as release version outside VS enviroment... It appears to run this line of code: da.Fill(crms_ds_ParcelList, "rfaPRef") which is in a Private function called from Sub Main Then nothing...Does not hang...just stops... Also the messagebox I have put in a Catch...Finally statement to try and track this prob flashes up but it to disappears. Tag: .net program run's slower on first time Tag: 83563
  - 8
    - key/value collection that allows key string to be updated and retains collection item entry order I'm looking for a collection that stores key/values that allows the key to be updated and retains collection item entry order. I want to have a collection where I add like this: myCollection.Add("temp_1", myObject) when myObject is saved I have an event that notifies the containing collection that it's key should be modified. I want the order of that the items are entered in the collection to be retained Thanks In advance for any info, stan Tag: .net program run's slower on first time Tag: 83557
  - 9
    - RE How can I find out which control had the previous focus. thanks Tag: .net program run's slower on first time Tag: 83556
  - 10
    - Windows DataGrid client area is not redrawn after grid is refilled Hi, I have a problem with Windows forms datagrid control. This problem appeared only after I have installed .net framework 1.1 service pack1. Basically after grid is refilled either with new datatable or a view derived from that datatable I can see a gray cell on the client area of the grid if grid is empty (meaning that underlying datatable did not have any rows). If on the other hand grid is refilled with some data I can see a cell that was definitely left over from previous datatable. I suspect that when Microsoft released sp1 they messed up something in internal implementation of paint capablities of the grid control. So, my question is this. How can I remove service pack 1 of .net framework 1.1 and return framework to the original state? Thanks in advance Tag: .net program run's slower on first time Tag: 83554
  - 11
    - how to run exe. file on a computer which dont have .Net hi everyone! i have created an application in C#. And i wanted to run its exe file on a computer which dont have visual studio .Net installed on it. So i installed the .Net framework on that computer and ran my exe. file but it gives the following error : "Application terminated , click ok to terminate the application and cancel to start debuging" what should i do so that an exe. file created in C3 can run on a computer which only have .net framework installed on it not the whole visual studio .Net Tag: .net program run's slower on first time Tag: 83549
  - 12
    - How can I find out which control had the previous focus. TIA Tag: .net program run's slower on first time Tag: 83538
  - 13
    - Scraping data from a web form submit Hi, I want to build an app (C#, windows app, or web app, shouldn't make a difference) that submits an address to the canada post website's address lookup and then scrape the postal code out of the resulting page. Here is their page. http://www.canadapost.ca/tools/pcl/bin/advanced-e.asp It uses a form post. I would like a basic rundown of how to submit my own info into their results page (post), and then scrape out the info I need. Thanks, Brent Tag: .net program run's slower on first time Tag: 83537
  - 14
    - Activator.CreateInstance with implicit type conversion Hi, I've got a class constructor that takes public Foo(int a, MyString b) MyString type has an implicit operator for string so I can call this from code with Foo f = new Foo(1, "hello"); However i'd like to programmatically call the constructor using Activator.CreateInstance(typeof(Foo), new object[] { 1, "hello" }) This doesn't work because the constructor is of type MyString, and the CreateInstance Binder is looking for a type string. Is there anyway to get the Binder to just 'use' the params I pass in, or at least to see if there is a possible implicit type conversion possible??? Cheers, Al Tag: .net program run's slower on first time Tag: 83524
  - 15
    - Terminal Service: conocer la IP del cliente remoto? Utilizando .Net, como puedo obtener la dirección ip o el nombre del cliente remoto que está conectado por Terminal Service a un Servidor de Terminal ? En el Terminal Servide Manager me muestra el nombre del cliente remoto, o sea del equipo remoto, pero no se como obtenerlo utilizando C# .Net. gracias. Tag: .net program run's slower on first time Tag: 83516
  - 16
    - is it possible to have one compiled exe for both app as well as service? hi all i have an application that i would like to be able to run both as a service, as well as a normal application. can this be done? how can i specify to Main(), that it is one or the other? how can it tell which mode to run in? assaf Tag: .net program run's slower on first time Tag: 83513
  - 17
    - how to get the 'Start' parameters in a windows service? hi all how can i get the 'Start' parameter specified for a windows service? assaf Tag: .net program run's slower on first time Tag: 83512
  - 18
    - Performance counter installer breaks service installers? Hello, I ran into a strange problem related to performance counter and service installers. I created a windows service using C#, VS.NET 2003 and framework 1.1 SP1. Everything went smooth and I got the service up and running. Later, I added some performance counters to the service by dragging them from the toolbox to the design view of the service. I set the properties of the counters, and created installers for the counters. When it was time to deploy the service, the problems began. "InstallUtil MyService.exe" executes smoothly without exceptions. But the services MMC-snapin shows no startup type for the service. Clicking properties or trying to start the service results in an error message "The system cannot find the file specified." After some investigation, I noticed that if I remove the performance counter installer calls from the code generated by Visual Studio, service installation works again. This led me to investigate the differences in the registry after installing the service with the two variations. When the performance counter installer calls are present, the HKLM\SYSTEM\CurrentControlSet\Services\MyService key contains no values. However, when I remove the performance counter installer calls, the same key contains the following values: ErrorControl, ImagePath, ObjectName, Start and Type. The service also starts just fine, and its properties are available through the Services MMC snap-in. The logical conclusion is that the performance counter installers break the install process, even though there are no error messages. Any suggestions how to fix this? -- Jussi Isotupa CTO jussi@weppihiiri.fi.NOSPAM Weppihiiri Ltd. http://www.weppihiiri.fi/ Tag: .net program run's slower on first time Tag: 83511
  - 19
    - Visual Studio Tools I have installed Visual Studio Tools version 2003 Uppgrade. I have cliced Visual Basic.NET , File, New, Project. I look for Emty Project so I Can Click It and next Class. I want to creat a new Class. But I can not find Emty project and not Class. Why ?? Do I need an other Microsoft Product to create a new Class?? -- munken Tag: .net program run's slower on first time Tag: 83506
  - 20
    - Server Client Asyn. communication I am working on a server client asyn. socket communication via TCP in pocketPC the program is successfully compiled and the server and the client is successfully connected However, when the program execute the command: Sock.Send( byteDateLine, byteDateLine.Length, 0 ); An exception is caught: System.InvalidOperationException:InvalidOperationException What is the problem? Tag: .net program run's slower on first time Tag: 83496
  - 21
    - Caching Application Block I tried to use CAB in my smart client application to store cache using memory mapped file. I want to create cache in a disk resident storage type so that when application closes or the pc reboots, I can still continue working on the data by accessing the cache. The CAB that I have downloaded stores cache in-memory only. Please help. Tag: .net program run's slower on first time Tag: 83495
  - 22
    - .net Framework 1.14322 I am receiving an error message each time I run various apps, including any Help files. . It reads: .net framework initialization error. To run this application you must first install one of the following versions of the .net framework: v1.1.4322 and v1.0.3705. I have 1.1.4 installed, there's even a folder named C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322 I even get this error while trying to install MS files I downloaded to try to solve this problem, such as NDP1.1sp1-KB867460-X86.exe. This can't be related to any one service that I downloaded, as it occurs in a number of different situations. It pops up in MSN Explorer, when trying to install MS software as noted above, and other areas. Someone please figure out why?? I'm running Win ME, by the way. MSIE 6.x. Tag: .net program run's slower on first time Tag: 83491
  - 23
    - Strongly Typed Collection Problem Hi All I have a class Persons that hold key/value pairs of Person class. My problem is the following. On the first screen I create an instance of Person, I then add a name and surname and then add the class to class Persons ( I can add more than one Person class on this screen). On the next screen I retrieve the Person I am interested in and add Home Address or whatever I wish to add. The problem starts when I call the Add method of the Persons class. The value (Person that's been updated) is never stored or updated in the Persons class. public object Value { get{return this.mValue;} set { if (this.mValue != value) { this.mValue = value; } } } Can some give some green light? Tag: .net program run's slower on first time Tag: 83485
  - 24
    - PKCS7 padding is invalid and cannot be removed. I'm creating a simple RinjdaelManaged class for some simple encryption/decryption. I am not using a password to generate the Key and IV, but am just hard-coding those values into the class. Yes, I know, but I intend to build on it later for better security. Problem right now is in the decryption, I am getting a "PKCS7 padding is invalid and cannot be removed." error. What is the reason for this? Public Class MySecurity Private Shared KEY_128() As Byte = {--byte array--} Private Shared IV_128() As Byte = {--byte array--} Public cryptoObj As New RijndaelManaged Public Shared Function Encrypt(ByVal value As String) As String If value <> "" Then Dim ms As MemoryStream = New MemoryStream Dim cs As CryptoStream = New CryptoStream(ms, cryptoObj .CreateEncryptor(KEY_128, IV_128), CryptoStreamMode.Write) Dim sw As StreamWriter = New StreamWriter(cs) sw.Write(value) sw.Flush() cs.FlushFinalBlock() ms.Flush() 'convert back to a string Return Convert.ToBase64String(ms.GetBuffer(), 0, ms.Length) Else Return "" End If End Function Public Shared Function Decrypt(ByVal value As String) As String If value <> "" Then 'convert from string to byte array Dim buffer As Byte() = Convert.FromBase64String(value) Dim ms As MemoryStream = New MemoryStream(buffer) Dim cs As CryptoStream = New CryptoStream(ms, cryptoObj.CreateDecryptor(KEY_128, IV_128), CryptoStreamMode.Read) Dim sr As StreamReader = New StreamReader(cs) Return sr.ReadToEnd() Else Return "" End If End Function End Class Tag: .net program run's slower on first time Tag: 83483
  - 25
    - Getting an array of structures from Win32 API calls I have a small chunk of Managed C++ code that is attempting to call into an umanaged Win32 api to retrieve a list of structures. Unfortunatly, I'm not having any luck getting this code to work. Any help would be appriciated: I'm defining the pointer that will hold the array of structures as: GROUP_USERS_INFO_0* pstUsers = NULL; The actual API call looks like: status = ::NetGroupGetUsers(server, unmanagedGroupname, 0, (LPBYTE*)&pstUsers, MAX_PREFERRED_LENGTH, &dwEntries, &dwTotal, &dwResumeHandle); I'm getting sensible results back for the dwEntries and dwTotal fields. I then try to parse out the group names: StringCollection* results = new StringCollection(); for (DWORD i = 0; i < dwEntries-1; i++) { System::String *s = System::Runtime::InteropServices::Marshal::PtrToStringUni(pstUsers[i].lgrui0_name); results->Add(s); } Much to my annoyance, my string always ends up with garbage in it. I'm not to familure with Managed C++, so I'm probably doing some very obvious wrong, but I'm not making too much progress... (I can't use the DirectoryServices for this, as I'm talking to an NT4 Domain rather than AD, and this particular method isn't supported...) -- Chris Mullins Tag: .net program run's slower on first time Tag: 83482

Hi Friends.

I was developed a project in vb.net . When i running the project it
runs very slower on first time. I End the program and again start run
it is ok and run good.

If I restart my PC and run my project it is slower . The second
execution is faster .

There is any way to fix that.

regards
Prakash

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Re: .net program run's slower on first time by Jon

Jon
Tue Sep 28 02:06:02 CDT 2004

<prakash.guru@gmail.com> wrote:
> I was developed a project in vb.net . When i running the project it
> runs very slower on first time. I End the program and again start run
> it is ok and run good.
>
> If I restart my PC and run my project it is slower . The second
> execution is faster .
>
> There is any way to fix that.

That's likely to be the same with anything which loads a large number
of libraries. Once they're in the system's cache, subsequent runs will
be faster until the libraries are flushed from the cache (eg by not
being used for ages).

--
Jon Skeet - <skeet@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

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