Hi Team,
I am doing migration of .net framework Visual studio 2019 based project to .net core 3.0 and observed a breakdown of many API we are using and the same isn't available in target .NET Core platform.
Kindly suggest do i need to rewrite API .
Regards,
Rakesh Singh
Hi,
I have to port .netFramework code which has dllimport("kernel32.dll") to .NetCore(targeting ubuntu 14 and windows). Question is when we have dependency on such dlls (native to windows /any platform) how the ported code will work on other platforms?
Such dll dependencies need to be replaced by ubuntu specific in my case? then portability will break.
Any ideas how to address this, thanks in advance.
Hi all,
I am trying to create a file from binary and then show it in webbrowser, after closening program, I want to delete folder and all files inside. Everything goes well but after exit app it stop in this exit functionm when I am trying to delete folder and shows me an error:
The process cannot access the file, because it is being used by another process.
I have this problem only with pdf files. I had same with images, but I fixed it by adding OnLoad on bitmap, likes this ...
BitmapImage bi = new BitmapImage(); bi.BeginInit(); bi.CacheOption = BitmapCacheOption.OnLoad; bi.UriSource = new Uri(cela_cesta); bi.EndInit();
BUT i have no idea what to do with pdf files ... it seems that problem is here
pdfDocument.Navigate(new Uri(full_path_file));
pdfDocument is name of WebBrowser in *.xaml
... and exit app (just for info - I dont thing here is a problem)
if (Directory.Exists("temp"))
{
Directory.Delete("temp", true);
}
Hi,
I've a web application (my first) which connect to SQL,
all the sql connections should connect using Kerberos
but 1 part of the application should made a sql connection with the application pool identity (domain accaount)
My connectionstring :
<add name="MyConnectionString" connectionString="Data Source=xxxxxx;Initial Catalog=xxxxxx;Integrated Security=True" providerName="System.Data.SqlClient" />
Kerberos works fine, but how do i define a connectionstring that will not use kerberos, without setting password in webconfig
tried already uid=domain\user
thanks
Hi Team,
I am doing a migration asp.net project 4.5 frameworks toasp.net core 3.1.
I can see fake dll is used in 4.5 framework so this is feature of Visual studio enterprise edition inasp.net core also we can generate fake dll
so want to know is fake dll is supported in .net core?
any suggestion and help will be highly appreciated on how to proceed further on this.
Regards
Made a simple .net core 3.1 RegFree.dll and added both EnableComHosting and EnableRegFreeCom (both values=true).
Build the project and manifest is also built (RegFree.X.manifest)
Then I make a simple VB6 app (VB6Client.exe) trying to use the component.
First I try registration by regsvr32 RegFree.dll.
Then I try to add a reference from VB6 IDE "Project/References, but it cannot be found in "Available References:" list in the references dialog, which is perhaps logical when a tlb is missing(?), adding the RegFree.dll or RegFree.comhost.dll
fails: "Can't add a reference to the specified file.".
Giving up this, I try to do it late bound with:
Dim RegFreeObject As Object
Set RegFreeObject = CreateObject("RegFree.Server") 'Server is a class name
And it works ok, but, of course with the lack of "intellisense" due to late binding, which is something I can live with.
Then I unregsister the dll again and of course it fails as expected (429), but how to do this regfree?
I tried to add a manifest describing the exe app as follows:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
<assemblyIdentity name="VB6Client.exe" version="1.0.0.0" type="win32" processorArchitecture="x86"/>
<description>Built with: Side-by-Side Manifest Maker (3.7.1.4434) (x86)</description>
<dependency>
<dependentAssembly>
<assemblyIdentity name="RegFree.X" version="1.0.0.0" type="win32"/>
</dependentAssembly>
</dependency>
</assembly>
But anyway I get 429.
I have no clue if the handmade VB6Client.manifest is correct (the RegFree.X.manifest is made by VS 2019 and I assume that's perfect).
Further I have no clue if early binding of regfree COM is supposed to be possible.
I don't even know if this is a possible scenario at all.
Anyone?
If you can't fix it, feature it!
Hi
I need your advice of how to encrypt and decrypt blob file (50MB) in vb.net
Requirements: Windows 10 1909 Build 18363, Visual Studio 2019 Version 16.6.1
The MSFT documentation on SystemEvents gives a clear example of how to hook SystemEvents into a Windows Service, by creating a hidden Form. However, following the instructions exactly, I am not able to get any of the SystemEvents to log a message to the Event Viewer. Does this no longer work? I am running Windows 10 1909 (Build 18363), using Visual Studio 19 Version 16.6.1.
Program.cs:
using System.ServiceProcess;
namespace WindowsServiceWithGuiTest
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main()
{
ServiceBase[] ServicesToRun;
ServicesToRun = new ServiceBase[]
{
new Service1()
};
ServiceBase.Run(ServicesToRun);
}
}
}ProjectInstaller.cs:
using System.ComponentModel;
namespace WindowsServiceWithGuiTest
{
[RunInstaller(true)]
public partial class ProjectInstaller : System.Configuration.Install.Installer
{
public ProjectInstaller()
{
InitializeComponent();
}
}
}
ProjectInstaller.Designer.cs 'InitializeComponent' method:
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.serviceProcessInstaller1 = new System.ServiceProcess.ServiceProcessInstaller();
this.serviceInstaller1 = new System.ServiceProcess.ServiceInstaller();
//
// serviceProcessInstaller1
//
this.serviceProcessInstaller1.Account = System.ServiceProcess.ServiceAccount.LocalSystem;
this.serviceProcessInstaller1.Password = null;
this.serviceProcessInstaller1.Username = null;
//
// serviceInstaller1
//
this.serviceInstaller1.Description = "This is a test service that also launches a GUI which you can hook system events " +"into.";
this.serviceInstaller1.DisplayName = "ServiceWithGuiTest";
this.serviceInstaller1.ServiceName = "ServiceWithGuiTest";
this.serviceInstaller1.StartType = System.ServiceProcess.ServiceStartMode.Automatic;
//
// ProjectInstaller
//
this.Installers.AddRange(new System.Configuration.Install.Installer[] {
this.serviceProcessInstaller1,
this.serviceInstaller1});
}
Service1.cs:
using Microsoft.Win32;
using System;
using System.Diagnostics;
using System.ServiceProcess;
using System.Threading;
using System.Windows.Forms;
namespace WindowsServiceWithGuiTest
{
public partial class Service1 : ServiceBase
{
public Service1()
{
InitializeComponent();
}
protected override void OnStart(string[] args)
{
EventLog.WriteEntry("WindowsServiceWithGuiTest", "Starting Service");
new Thread(RunMessagePump).Start();
}
void RunMessagePump()
{
EventLog.WriteEntry("WindowsServiceWithGuiTest.MessagePump", "Starting Message Pump");
Application.Run(new HiddenForm());
}
protected override void OnStop()
{
Application.Exit();
}
public partial class HiddenForm : Form
{
public HiddenForm()
{
InitializeComponent();
EventLog.WriteEntry("WindowsServiceWithGuiTest.HiddenForm_FormClosing", "Form c'tor finished");
}
private void HiddenForm_Load(object sender, EventArgs e)
{
EventLog.WriteEntry("WindowsServiceWithGuiTest.DisplaySettingsChanged", "Form loaded");
SystemEvents.TimeChanged += new EventHandler(SystemEvents_TimeChanged);
SystemEvents.UserPreferenceChanged += new UserPreferenceChangedEventHandler(SystemEvents_UPCChanged);
SystemEvents.DisplaySettingsChanged += SystemEvents_DisplaySettingsChanged;
}
private void SystemEvents_DisplaySettingsChanged(object sender, EventArgs e)
{
EventLog.WriteEntry("WindowsServiceWithGuiTest.DisplaySettingsChanged", "Display Settings Have changed");
}
private void HiddenForm_FormClosing(object sender, FormClosingEventArgs e)
{
EventLog.WriteEntry("WindowsServiceWithGuiTest.HiddenForm_FormClosing", "Form closing");
SystemEvents.TimeChanged -= new EventHandler(SystemEvents_TimeChanged);
SystemEvents.UserPreferenceChanged -= new UserPreferenceChangedEventHandler(SystemEvents_UPCChanged);
SystemEvents.DisplaySettingsChanged -= SystemEvents_DisplaySettingsChanged;
}
private void SystemEvents_TimeChanged(object sender, EventArgs e)
{
EventLog.WriteEntry("WindowsServiceWithGuiTest.TimeChanged", "Time changed; it is now " +
DateTime.Now.ToLongTimeString());
}
private void SystemEvents_UPCChanged(object sender, UserPreferenceChangedEventArgs e)
{
EventLog.WriteEntry("WindowsServiceWithGuiTest.UserPreferenceChanged", e.Category.ToString());
}
}
partial class HiddenForm
{
private System.ComponentModel.IContainer components = null;
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
private void InitializeComponent()
{
this.SuspendLayout();
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(0, 0);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
this.Name = "HiddenForm";
this.Text = "HiddenForm";
this.WindowState = System.Windows.Forms.FormWindowState.Minimized;
this.Load += new System.EventHandler(this.HiddenForm_Load);
this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.HiddenForm_FormClosing);
this.ResumeLayout(false);
}
}
}
}When I compile, install, and start the service, then try to do something like change the time, change my desktop background, or change my display resolution, NOTHING HAPPENS! The last seen event log message is that the "Form loaded".
Any help would be greatly appreciated!
Tam
I have some comboboxes that use the same possible input values. Hence I tried to create a style and then set the style on my combo boxes. However, I am getting the error
System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Controls.ItemsControl', AncestorLevel='1''. BindingExpression:Path=VerticalContentAlignment; DataItem=null; target element is 'ComboBoxItem' (Name=''); target property is 'VerticalContentAlignment' (type 'VerticalAlignment')
My style is defined as
<Window.Resources><Style TargetType="{x:Type ComboBox}" x:Key="MyCombobox" xmlns:c="clr-namespace:System.Collections;assembly=mscorlib"><Setter Property="ItemsSource"><Setter.Value><c:ArrayList><ComboBoxItem>Item1</ComboBoxItem><ComboBoxItem>Item2</ComboBoxItem><ComboBoxItem>Item3</ComboBoxItem></c:ArrayList></Setter.Value></Setter></Style></Window.Resources>Then my comboboxes are defined as
<ComboBox x:Name="comboBox1" Text="{Binding Path=Input1}" Style="{StaticResource MyCombobox}" /><ComboBox x:Name="comboBox2" Text="{Binding Path=Input2}" Style="{StaticResource MyCombobox}" />Input1 and Input2 are text properties in my VM. So why am I getting this error?
Hi Team,
I have migrated project from .net 4.5 to 4.8 framework could you please let us know is TLS1.3 support available?
Do i need to do code changes for this i think framework should default support
any suggestion and help will be highly appreciated on how to proceed further on this.
Hi Team,
I have migrated project from .net 4.5 to 4.8 framework could you please let us know is TLS1.3 support available?
How to enable TLS1.3 in window os.
any suggestion and help will be highly appreciated on how to proceed further on this.
Hi Team,
I have migrated project from .net 4.5 to 4.8 framework could you please let us know is TLS1.3 support available?
As i found mostly comments not supported so could you please let us know test cases to validate the same
i tried to captured logs when response and request happened but i am getting default TLS 1.2 logs only ..
any suggestion and help will be highly appreciated on how to proceed further on this.