Re: Password!!! - WPF Discussion Boards

5-Dec-08 14:36

HI all,
i need a feature about add,edit and delete a record ,in few words my boss request to insert a password when a employee will add,delete and edit a record but i have not idea how do that.
Do you have advices ,ideas or some link to see how apply this feature.
I use Wpf with Linq toSQL .
Thanks for your attention.
I wish you happy work.

Best regards,

Bye Smile | :)

Jammer5-Dec-08 22:05

Jammer

5-Dec-08 22:05

Do you mean that a user should login to your app at startup or enter a password on a single window at the same time as submitting these new/changed details?

I'd opt for having a login when the app started personally.

Does the database your using already have any form of user login/security mechanism? If not, this isn't a trivial thing to implement.

Jammer
My Blog | Article(s)

VisualLive7-Dec-08 21:18

7-Dec-08 21:18

Hi JAmmer,
firstly thanks to reply me,
my database hasn't a security or better i did not put a password in my SqlServer

Jammer wrote:
Do you mean that a user should login to your app at startup or enter a password on a single window at the same time as submitting these new/changed details?

I mean (my boss request Smile | :)

) that when a employee will add,delete or edit a record before to perform that action must appear a password to complete the action (add,delete,edit) ,he is a little pedantic because he got afraid that somebody will change the data without his permission .
I'm interested having a login when the app start ,can you explain me more in detail about this option?
Thanks
I wish you happy day.

Best Regards,

Bye

Jammer8-Dec-08 0:40

Jammer

8-Dec-08 0:40

If you want to have a login at app start your going to have to implement some form of security database.

This is a fair sized project in its own right.

You'll have to authenticate users at login, store hashed passwords and possibly implement some form of 'user roles' that have a selection of permissions regarding things they are allowed to do and things they aren't allowed to do.

If your going to all this trouble you should also be logging what a user does, when they did it etc ...

Sounds to me like you would be wise to actually tell your boss that this is potentially a lot of work.

Its the kind of infrastructure thing that needs planning and doing in such a way that it is application independant as well. So any future apps you develop can also make use of this security model.

This is also drifting way off topic for this forum! Smile | :)

Jammer
My Blog | Article(s)

Pete O'Hanlon8-Dec-08 2:15

Pete O'Hanlon

8-Dec-08 2:15

The advice that Jammer has given you is good stuff, but there is something else you can do. In ASP.NET, there is the concept of something called the Membership and Role Providers, which are used to provide authentication on a website. There's a common misconception that they can only be used on a website - this just isn't true. With a little bit of work, you can hook up a desktop application to use the same infrastructure.

Here's[^] a Win Forms example that should be relatively easy to port over.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

Jammer8-Dec-08 5:18

Jammer

8-Dec-08 5:18

Thats really interesting ...

Thanks for that Pete.

Jammer
My Blog | Article(s)

VisualLive8-Dec-08 23:26

8-Dec-08 23:26

Hi,
Thanks for your fast reply,
i will look right now the link and after i will try ,however i will tell you if i try difficult or not.
A special warm hug...so far so good.
I wish you happy day.

Best Regards,

Bye

Pete O'Hanlon10-Dec-08 5:54

Pete O'Hanlon

10-Dec-08 5:54

Good luck with it.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

My blog | My articles | MoXAML PowerToys

VisualLive17-Dec-08 17:57

Issue with accessing WPF user control dynamically

17-Dec-08 17:57

Thanks a lot for your lovely support.
when i will develop it i will tell you how is it..
i wish you happy day.

Best regards,

Bye

IP Address TextBox

yanairon5-Dec-08 8:29

yanairon

5-Dec-08 8:29

Hi
I'm looking for an IP Text box implementation, either with a mask or windows style (4 boxes, with the abillity to copy\paste etc)

Any one has done it before?

Thanks,

Re: IP Address TextBox

koleraba7-Dec-08 20:51

koleraba

7-Dec-08 20:51

You can find something like that in the downloadable code examples for the Apress book PRO WPF by Matthew MacDonald(Chapter 24) but it doesn't support the paste/copy functionallity. I hope this helps

Uros Bregar

prabodh_254-Dec-08 23:43

prabodh_25

4-Dec-08 23:43

Hi all,

I am developing XBAP application and facing following problem.

I have created one WPF user control and trying to access it dynamycally using reflection. Project contains Page1.xaml, Page2.xaml and userControl1.xaml. Actually when project starts page1 is hosted inside browser. when button is clicked new instance of Page2 is created and hosted inside frame and instance of userControl1 is also created and placed on the page2. AS you go on clicking button same thing happened and those many pages are hosted inside the frame. but the Problem is when I navigate between these pages user control loses its state. if I place the usercontrol at design time then it does not lose the state during navigation. here is my code in button click

Dim Pg As New Page2

fraHost.Content = Pg

and code in the Page2.loaded event is as follows

Dim asm As Assembly = Assembly.LoadFrom(AppDomain.CurrentDomain.BaseDirectory & "WpfBrowApp.exe")

Dim flags As BindingFlags = BindingFlags.NonPublic Or BindingFlags.Public Or BindingFlags.Static Or _

BindingFlags.Instance Or BindingFlags.DeclaredOnly

Dim ref_types As Type() = asm.GetTypes()

'StrSearchControl is the name of usercontrol

Dim typ As Type = asm.GetType(asm.GetName.Name & "." & StrSearchControl, True, True)

Dim instance As Object

For Each ty As Type In ref_types

If ty.Name = StrSearchControl Then

instance = Activator.CreateInstance(ty)

instance.height = Double.NaN

instance.width = Double.NaN

instance.ishittestvisible = True

Me.tbpgSreen.Content = instance

End If

Next

please help me on this.

thanks in advance.

Prabi

URGENT --- WPF Web Browser control ...how to detect the langauge on the web page like english, french etc

tarun jindal4-Dec-08 18:53

tarun jindal

4-Dec-08 18:53

Hi,

I am using a web browser control in my WPF application. I will be navigating various websites with its help. What i want is that when a certain web page gets loaded, based on the content inside that web page i should be able to identify the language which is written on that page like french , japanese etc.

Basically i want to apply the concept of Internationalization or something like that in WPF.

In internationalization we can get the web browser's language preferences by:
// Set the CurrentCulture property to the culture associated with the Web
// browser's current language setting.
Thread.CurrentThread.CurrentCulture = CultureInfo.CreateSpecificCulture(Request.UserLanguages[0]);

I want the same thing for the web page that i navigate through my web browser control in WPF.

It's kind of urgent please help to find the solution soon.

Thanks in advance.

Drawing Performance

yanairon4-Dec-08 13:19

yanairon

4-Dec-08 13:19

Hi,

I was wondering what is better for performance in WPF.
Drawing in code or using image files.

and if so, what is the best format

Thanks

Re: Drawing Performance

Mohammad Dayyan5-Dec-08 1:38

5-Dec-08 1:38

Well, I think so using images is faster, but with XAML you can draw vector shapes as well as shapes in Flash.
It depends your want.

Re: Drawing Performance

yanairon5-Dec-08 7:53

yanairon

5-Dec-08 7:53

Thanks,

I just want to know, when designing a new application, which approach is best

Re: Drawing Performance

Mohammad Dayyan5-Dec-08 9:16

Hyperlinks in WPF seem enabled but do not open using XAML... what am I missing?

5-Dec-08 9:16

If I wanna design an application , I'll use XAML code.

Member 1854264-Dec-08 13:02

Member 185426

4-Dec-08 13:02

I'm fairly good with C# and WPF, but I'm relatively new when it comes to working with the new .NET 3.5 WPF RichTextBox control and it's XAML. Anyway, I needed to add a hyperlink insdie a RichTextBox control, so I found instructions on how to do this at http://blogs.msdn.com/llobo/archive/2007/08/09/3-5-features-enabled-hyperlinks-in-richtextbox.aspx[^]">, and I followed the instructions and was able to embed my own hyperlinks inside my own RichTextBox control, and they were lit up blue and underlined, and when I held down the CTRL button and hovered over them, the web browser hand pointer icon appeared, so they seemed to be enabled. However, when I hold down CRTL and click, nothing opens. I've tried this with my own links, and even with the exact same code with the exact same hyperlink on the site above. Am I missing something. What am I doing wrong?

Any help would be appreciated. If you want to reproduce this, just use the code on his site, and you'll see when you hold down Ctrl and Click, nothing actually opens.

Thanks everyone!

Justin

Re: Hyperlinks in WPF seem enabled but do not open using XAML... what am I missing?

Mohammad Dayyan5-Dec-08 1:33

Re: Drawing with custom Pen

5-Dec-08 1:33

I've used this way :

XAML:

<Hyperlink Click="Hyperlink_Click" NavigateUri="http://www.mds-soft.persianblog.ir/"><Run 
  Text="Mohammad Dayyan"/></Hyperlink>

C# :

private void Hyperlink_Click(object sender, RoutedEventArgs e)
{
    try
    {
        Hyperlink source = sender as Hyperlink;
        System.Diagnostics.Process.Start(source.NavigateUri.ToString());
    }
    catch (Exception ex)
    {
    	MessageBox.Show(ex.Message, "Exception", MessageBoxButton.OK);
    }
}

Drawing with custom Pen

pym4-Dec-08 2:54

pym

4-Dec-08 2:54

Hello,

I have encountered a problem trying to draw a line with a custom pen.
What I need to do is draw a line from point X to point Y, but use a certain shape (some polygon), as opposed to the standard pen I get in DrawLine(Pen, Point, Point) interface.
There is the PenLineCap, but it is not good enough as it supports specific shapes.

Anyone has any idea how to achieve this?
Thanks.!

Mohammad Dayyan5-Dec-08 1:28