Re: variable which is assing class value and array.sort problem - C# Discussion Boards

svt gdwl2-Jun-09 23:17

2-Jun-09 23:17

when an Internet Explorer is opened and navigated through other links continuously for sometime, back button(i.e., a navigation toolbar to going to previous url) sould be disabled. How can I do this using c#?

Re: How to disable back button on IE?

Blue_Boy2-Jun-09 23:25

Blue_Boy

2-Jun-09 23:25

you can use this javascript function:

window.history.forward(1);

but the Back function can always be achieved by right clicking on the page and choosing to go back.

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Re: How to disable back button on IE?

J4amieC2-Jun-09 23:27

J4amieC

2-Jun-09 23:27

You can't.

Re: How to disable back button on IE?

Manas Bhardwaj2-Jun-09 23:39

Manas Bhardwaj

2-Jun-09 23:39

This is one of the question which appears almost every 2-3 days.

Look at this [^]

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variable which is assing class value and array.sort problem

karayel_kara2-Jun-09 22:48

karayel_kara

2-Jun-09 22:48

i have a class and i assing this class value then

when i sorted this value or class value, both sorted

example code folowing :

int[] ggg=new int[5];
int[] ggg1=new int[5];
ggg = networks.layers[i].noron[j].sbaglanti;
ggg1 = ggg;
Array.Sort(ggg);

how can i solve this problem ?

regards

Re: variable which is assing class value and array.sort problem

S. Senthil Kumar2-Jun-09 22:54

S. Senthil Kumar

2-Jun-09 22:54

That is because System.Array is a reference type. When you assign ggg1 = ggg, both ggg and ggg1 refer to the same array instance, so calling Array.Sort on either reference will change that instance.

Check out MSDN[^] or search for value types and reference types in Google.

Regards
Senthil [MVP - Visual C#]
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Re: variable which is assing class value and array.sort problem

karayel_kara2-Jun-09 23:00

karayel_kara

2-Jun-09 23:00

i understand but if arrays is referans value, how can i solve my problem?

Re: variable which is assing class value and array.sort problem

S. Senthil Kumar2-Jun-09 23:04

S. Senthil Kumar

2-Jun-09 23:04

You typically find a way to clone the source reference. In this case, Array.Copy should do the trick. Bear in mind that if the elements in the array themselves are reference types, then Array.Copy won't clone them.

Regards
Senthil [MVP - Visual C#]
_____________________________
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Re: variable which is assing class value and array.sort problem

tom5720072-Jun-09 23:17

tom572007

2-Jun-09 23:17

That's what i said 10 minutes ago Sniff | :^)

Re: variable which is assing class value and array.sort problem

tom5720072-Jun-09 22:55

tom572007

2-Jun-09 22:55

have you tryed :

Array.Copy(ggg, ggg1, 5);

Re: variable which is assing class value and array.sort problem

CPallini2-Jun-09 23:03

CPallini

2-Jun-09 23:03

int[] ggg = new int[5];
ggg = networks.layers[i].noron[j].sbaglanti;
int[] ggg1 = (int[]) ggg.Clone();
Array.Sort(ggg);

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Re: variable which is assing class value and array.sort problem

karayel_kara2-Jun-09 23:22

karayel_kara

2-Jun-09 23:22

thanks friends.
i solved with array.copy();
regards

Re: variable which is assing class value and array.sort problem

tom5720072-Jun-09 23:34

tom572007

2-Jun-09 23:34

Implementation of IUrlHistoryStg Interface in C#?

svt gdwl2-Jun-09 22:39

svt gdwl

2-Jun-09 22:39

How to implement IUrlHistoryStg Interface in c#?

ClickOnce

yesu prakash2-Jun-09 22:23

yesu prakash

2-Jun-09 22:23

Hi,

I publish my windows application using clickonce. When some clients try to download it error occur. It is downloading in many other client machines with out any problem.
The deploy files are not getting downloaded in some client machine. I also delete the Apps folder in those machine and try again, same error occur.

Is ther any problem with the client machine or any problem in publishing?

Details of error :-

PLATFORM VERSION INFO
Windows : 5.1.2600.131072 (Win32NT)
Common Language Runtime : 2.0.50727.42
System.Deployment.dll : 2.0.50727.42 (RTM.050727-4200)

SOURCES
Deployment url : http://192.168.1.41/ -- My URL ---
Server : Microsoft-IIS/5.1
X-Powered-By : ASP.NET

Deployment Provider url : http://192.168.1.41/-- My URL ---

Server : Microsoft-IIS/5.1
X-Powered-By : ASP.NET

Application url : http://192.168.1.41/-- My URL --- .exe.manifest

Server : Microsoft-IIS/5.1
X-Powered-By : ASP.NET

IDENTITIES
Deployment Identity : board.application, Version=1.0.0.5, Culture=neutral, PublicKeyToken=735d61f06c2141e7, processorArchitecture=msil
Application Identity : board.exe, Version=1.0.0.5, Culture=neutral, PublicKeyToken=735d61f06c2141e7, processorArchitecture=msil, type=win32

APPLICATION SUMMARY
* Installable application.
* Trust url parameter is set.
ERROR SUMMARY
Below is a summary of the errors, details of these errors are listed later in the log.
* Activation of http://192.168.1.41/-- My URL --- resulted in exception. Following failure messages were detected:
+ Exception occurred loading manifest from file Client.dll: the manifest may not be valid or the file could not be opened.
+ File Client.dll is not a valid Portable Executable (PE) file.
+ The process cannot access the file 'C:\Documents and Settings\administrator\Local Settings\Temp\Deployment\L774NNJ6.6QD\EPT7095T.X26\Client.dll' because it is being used by another process.

COMPONENT STORE TRANSACTION FAILURE SUMMARY
No transaction error was detected.

WARNINGS
There were no warnings during this operation.

OPERATION PROGRESS STATUS
* [3/13/2009 10:41:24 AM] : Activation of http://192.168.1.41/--- My Link -- has started.
* [3/13/2009 10:41:25 AM] : Processing of deployment manifest has successfully completed.
* [3/13/2009 10:41:25 AM] : Installation of the application has started.
* [3/13/2009 10:41:25 AM] : Processing of application manifest has successfully completed.
* [3/13/2009 10:41:27 AM] : Request of trust and detection of platform is complete.

ERROR DETAILS
Following errors were detected during this operation.
* [3/13/2009 10:41:27 AM] System.Deployment.Application.InvalidDeploymentException (ManifestLoad)
- Exception occurred loading manifest from file Client.dll: the manifest may not be valid or the file could not be opened.
- Source: System.Deployment
- Stack trace:
at System.Deployment.Application.Manifest.AssemblyManifest.ManifestLoadExceptionHelper(Exception exception, String filePath)
at System.Deployment.Application.Manifest.AssemblyManifest.LoadFromInternalManifestFile(String filePath)
at System.Deployment.Application.Manifest.AssemblyManifest..ctor(String filePath)
at System.Deployment.Application.DownloadManager.ProcessDownloadedFile(Object sender, DownloadEventArgs e)
at System.Deployment.Application.FileDownloader.DownloadModifiedEventHandler.Invoke(Object sender, DownloadEventArgs e)
at System.Deployment.Application.FileDownloader.OnModified()
at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
at System.Deployment.Application.SystemNetDownloader.DownloadAllFiles()
at System.Deployment.Application.FileDownloader.Download(SubscriptionState subState)
at System.Deployment.Application.DownloadManager.DownloadDependencies(SubscriptionState subState, AssemblyManifest deployManifest, AssemblyManifest appManifest, Uri sourceUriBase, String targetDirectory, String group, IDownloadNotification notification, DownloadOptions options)
at System.Deployment.Application.ApplicationActivator.DownloadApplication(SubscriptionState subState, ActivationDescription actDesc, Int64 transactionId, TempDirectory& downloadTemp)
at System.Deployment.Application.ApplicationActivator.InstallApplication(SubscriptionState subState, ActivationDescription actDesc)
at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivation(Uri activationUri, Boolean isShortcut)
at System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state)
--- Inner Exception ---
System.IO.IOException
- File Client.dll is not a valid Portable Executable (PE) file.
- Source: System.Deployment
- Stack trace:
at System.Deployment.Application.PEStream.ConstructFromFile(String filePath, Boolean partialConstruct)
at System.Deployment.Application.PEStream..ctor(String filePath, Boolean partialConstruct)
at System.Deployment.Application.Manifest.AssemblyManifest.LoadFromInternalManifestFile(String filePath)
--- Inner Exception ---
System.IO.IOException
- The process cannot access the file 'C:\Documents and Settings\administrator\Local Settings\Temp\Deployment\L774NNJ6.6QD\EPT7095T.X26\Client.dll' because it is being used by another process.
- Source: mscorlib
- Stack trace:
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
at System.Deployment.Application.PEStream.ConstructFromFile(String filePath, Boolean partialConstruct)

COMPONENT STORE TRANSACTION DETAILS
No transaction information is available.

Thank you
YPKI

Exporting Data from XML file to Excel workbooks using C#

Krishna Aditya2-Jun-09 22:18

Krishna Aditya

2-Jun-09 22:18

Hi Everyone,

I have Database XML which has list of all tables in the database and separate xml's for each table.

Instead of reading each table from database in C# and exporting the data to Excel.... my rqmt is to read this database XML and fetch the data from it and dump into excel file .

If, I have 10 tables and I want to dump the table data into separate worksheet in excel.

please suggest me the better way of working this.

Thanks in advance.

Ram

Event Handling

Jayboss2-Jun-09 21:55

Jayboss

2-Jun-09 21:55

Hey
Ok so I am making a program with mutliple textboxes and what I want to do is when the textbox_enter event occurs it changes some properties of that textbox but i dont wanna make 20 textbox_enter events for each textbox. What is the code to mainstream it so for every textbox goes through the same event handler? And also in the event how do i select the textbox which started the event. E.g I know this. is used to select the current form. Is there a equivalent keyword for the element of the form being used?

Thanks in advance! Big Grin | :-D

Re: Event Handling

DaveyM692-Jun-09 22:14

DaveyM69

2-Jun-09 22:14

textbox1.Event += new RequiredEventArgs(MethodName);
textbox2.Event += new RequiredEventArgs(MethodName);
etc...

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
Why are you using VB6? Do you hate yourself? (Christian Graus)

Re: Event Handling

Manas Bhardwaj2-Jun-09 22:15

Manas Bhardwaj

2-Jun-09 22:15

Well you can do this either using Property box or even creating the event handler yourself.

this.textBox3.Enter += new System.EventHandler(this.GenericTextBox_Enter);
this.textBox2.Enter += new System.EventHandler(this.GenericTextBox_Enter);
this.textBox1.Enter += new System.EventHandler(this.GenericTextBox_Enter);

private void GenericTextBox_Enter(object sender, EventArgs e)
{
    MessageBox.Show(((TextBox)sender).Name);
}

Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Re: Event Handling

Uwe Keim2-Jun-09 22:19

Uwe Keim

2-Jun-09 22:19

You can save characters by simply writing

this.textBox3.Enter += GenericTextBox_Enter;
this.textBox2.Enter += GenericTextBox_Enter;
this.textBox1.Enter += GenericTextBox_Enter;

Easier to read, too.

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Re: Event Handling

J4amieC2-Jun-09 22:20

J4amieC

2-Jun-09 22:20

caveat. Only from .NET 3.5 IIRC.

Re: Event Handling

Uwe Keim2-Jun-09 22:29

Uwe Keim

2-Jun-09 22:29

No. At least since 2.0

Re: Event Handling

J4amieC2-Jun-09 23:57

J4amieC

2-Jun-09 23:57

Yup, just checked. Introduced in 2.0

Re: Event Handling

Nagy Vilmos2-Jun-09 22:17

Nagy Vilmos

2-Jun-09 22:17

By default, each control has a unique set of event handlers. You can overrirde the hadler to be used on the form's property sheet, look at the events tab.

Panic, Chaos, Destruction.
My work here is done.

Re: Event Handling

J4amieC2-Jun-09 22:19

J4amieC

2-Jun-09 22:19

What?? That doesnt even make sense!

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.