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If it's a database, then the system will do that for you.
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I presume we're talking about database records.
In which case, why do you care whether it exists? Delete it anyway - you're not going to get an error saying that 'this record you don't want doesn't exist'.
Strange question.
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develop the project in microsoft.net through C# on topic window based simulator using backpropogation algorithm.
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You need to post your full assignment so we can really mock you.
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This is your project to do. What's the point of us writing your code for you, as you learn nothing and you will be ill suited to becoming a professional developer. The trick is to research the algorithm yourself, and break it down little bit by little bit. A trick I sometimes use to help is to talk an algorithm through with someone - once you try and explain it, you see where the gaps are in your knowledge and it becomes easier to tackle those areas.
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Is that some sort of a question?
Or an order???
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My design is simple,
My application constructs a message with a header class and a Datastream in the body, it queues it for a central message distribution service which inturn queues it for other applications of mine to read - all via MSMQ with security set to None.
The CMDS is perfectly able to read the message from App 0, but it repeatedly fails to requeue it for App 1 etc.
But not consistently! Sometimes after clearing / deleting the queues it will work for a couple of times and then fails again.
The logic to queue form App 0 to the CMDS which rarely fails is replicated almost exactly in the CMDS to queue to the other Applications - but it hardly ever works!
I need to revisit the code to improve transaction handling but if that resolves the matter it will be accidental!
Any thoughts / experiences that might assist?
Ger
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Make sure your queue is not clogged with messages and that there is no size limit on the queue.
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Queue deleted and recreated to ensure that there is no clogging. I need to recheck sizings.
Ger
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Permissions, it must be permissions, even a single integer message won't queue from that point in the code!
Ger
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Ger Hayden wrote: The CMDS is perfectly able to read the message from App 0, but it repeatedly
fails to requeue it for App 1 etc.
Different boxes?
Then note that MSMQ has a convoluted routing strategy which is not visible to the sender. So messages can take hours to arrive at their destination. Presuming the keep alive time is that long.
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Not yet - I have to implement some way past the firewall - I'm thinking Lowy's http bridge.
Ger
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Hi All,
I am trying to write a desktop app where users can browse their computers for images and when they are found drag them onto a design stage. Basically the interface for the app consists of a tools panel on the right side of the screen and the design stage (a large white box) on the left. One of the many tools within the tools panel is a browse button which is used to search for images. How can I add the ability to drag images from where ever they reside onto the design stage using C#? Please point me to a site that talks about importing images into an app if you know of any, thanks in advance for your help.
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ASPnoob wrote: How can I add the ability to drag images from where ever they reside onto the design stage using C#?
Create a new Panel in the staging-area, and display the image within. Go here[^] for explanation on implementing Drag&Drop.
Images can't be stored in the application, one would use a special directory or, preferably, a local database (like SqlCe or Sqlite). There are various examples on storing and retrieving images from a database.
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I'm working on writing something that will allow you to create distribution groups in Exchange 2010.
The problem I am having is I am passing string arrays to my service for the Members and ManagedBy parameters.
This is how I attempted to make this work:
var members = new MultiValuedProperty<object>();
foreach (string s in group.Members)
members.Add(s);
cmd.AddParameter("Members", members);
The problem I'm having is it is returning an error because it appears it wants Microsoft.Exchange.Configuration.Tasks.RecipientWithAdUserGroupIdParameter within the MultiValuedProperty.
I'm a little confused because it then looks like the RecipientWithAdUserGroupIdParameter contains an array of RecipientIdParameter:
Error: System.ServiceModel.FaultException: System.Management.Automation.RemoteException: Cannot process argument transformation on parameter 'Members'. Cannot convert value "8caf8910-86d0-4d00-a452-8c30c0f62373 cfa01a55-6b35-4e61-bf0e-9050308623c7" to type "Microsoft.Exchange.Data.MultiValuedProperty`1[Microsoft.Exchange.Configuration.Tasks.RecipientWithAdUserGroupIdParameter`1[Microsoft.Exchange.Configuration.Tasks.RecipientIdParameter]]". Error: "Cannot convert the "8caf8910-86d0-4d00-a452-8c30c0f62373" value of type "Deserialized.Microsoft.Exchange.Configuration.Tasks.RecipientIdParameter" to type "Microsoft.Exchange.Configuration.Tasks.RecipientWithAdUserGroupIdParameter`1[Microsoft.Exchange.Configuration.Tasks.RecipientIdParameter]"." at System.Management.Automation.PowerShell.CoreInvoke[TOutput](IEnumerable input, PSDataCollection`1 output, PSInvocationSettings settings) at System.Management.Automation.PowerShell.Invoke(IEnumerable input, PSInvocationSettings settings) at System.Management.Automation.PowerShell.Invoke() at CloudPanel.Exchange.ExchPs.RunPowershell(PSCommand pscmd, String script) at CloudPanel.Exchange.ExchPs.RunPowershell(PSCommand pscmd, String script) at CloudPanel.Exchange.ExchPs.New_DistributionGroup(DistributionGroup group, String companydn)
Anyone have an idea what I can do to accomplish this? There are some stuff out on the web about using ICollection when reading from Exchange but i'm trying to send commands to exchange.
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RecipientIdParameter is the baseclass for RecipientWithAdUserGroupIdParameter so I think by passing the RecipientWithAdUserGroupIdParameter with the MultiValuedProperty might solve this error.
Note:I havent used this before.
Jibesh V P
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The problem is RecipientWithAdUserGroupIdParameter is another array.
so it has to be done like this:
var members = new MultiValuedProperty<RecipientWithAdUserGroupIdParameter<RecipientIdParameter>>();
But then I can't add to the RecipientWithAdUserGroupIdParameter because it doesn't have that method.
new RecipientWithAdUserGroupIdParameter<RecipientIdParameter>().
Only has these methods:
Equals
GetHashCode
GetObjects<>
GetType
ToString
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I need to do a simple drag and drop procedure, but I dont know why this code isn´t working...
MainWindow.XAML:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace WpfApplication13
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void img_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
Image img = (Image)sender;
DataObject dataObj = new DataObject(img);
DragDrop.DoDragDrop(img, dataObj, DragDropEffects.Move);
}
private void target_Drop(object sender, DragEventArgs e)
{
Image img = (Image)e.Data.GetData(typeof(Image));
Utes.Children.Remove(img);
Nivel1.Children.Add(img);
}
private void img_MouseMove(object sender, MouseEventArgs e)
{
}
private void img_DragLeave(object sender, DragEventArgs e)
{
e.Effects = DragDropEffects.Move;
}
Please... any advice will be appreciated!.
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You need to give some info on symptoms of the issues, not just give a code dump saying 'this doesn't work, please fix it for me'.
My advice? Well debug it dear Liza, dear Liza...
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try
{
try
{
}
catch
{
some exception caught here...
}
}
catch
{
how i skip above catch block and get exception in this block...
}
modified 23-Jan-13 13:08pm.
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Have the first catch use throw.
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if you would show in code that would be more helpful.
thanks
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Which is why I won't -- please read some documentation.
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try
{
try
{
throw new Exception();
}
catch(Exception exception)
{
throw;
}
}
catch(Exception exception2)
{
}
Note: You can also avoid catching the exception by putting a more specific type in the first catch (like IOException instead of Exception).
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