Re: use control in other form - C# Discussion Boards

djjedi25-Sep-08 1:38

25-Sep-08 1:38

is there any way to Read/Write to a Column Description in a MSAccess Table?

example

Im writing an application for an industrial control that i have created a plugin for.

I want to be able to read from the comment for a column to use the information for setting certain events.

I am able to read/write to rows, columns,etc but unable to read the description and it would help me greatly.

Web Service XML Tag Rename

il_manti25-Sep-08 1:21

il_manti

25-Sep-08 1:21

Hi all,

I am developing a couple of web services for work. Most of the methods return custom classes but I want one of them to just return a 'string' (either "OK" or "NOTOK").

The problem is that, whilst with custom classes the webservice's XML's tags are named according to the variable name (for example: <hotelsummary><hotelid>5 ... where HotelSummary is a type but HotelID is the variable name), with strings the XML returned is <string>OK.

Is it possible to rename the tags to display, for example, <hotelcheck>OK instead of the datatype?

Thanks a lot.

In life truth does not matter. What really matters is what others believe to be the truth. (The Up and Comer - Book)

Re: Web Service XML Tag Rename

N a v a n e e t h25-Sep-08 1:48

N a v a n e e t h

25-Sep-08 1:48

il_manti wrote:
but I want one of them to just return a 'string' (either "OK" or "NOTOK").

Why not use bool then? Return True/false

il_manti wrote:
Is it possible to rename the tags to display, for example, OK instead of the datatype?

I don't think you can rename it. I am not sure though.

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Re: Web Service XML Tag Rename

c242325-Sep-08 2:23

c2423

25-Sep-08 2:23

First, unless you are planning on expanding your status messages later, I would suggest using a boolean.

Second, sounds like you might be able to use an enumeration for this:

public enum Status
{
  OK,
  NOTOK
}

Then you would be able to say Status.OK or Status.NOTOK

Hope this helps,
Chris

Re: Web Service XML Tag Rename

il_manti25-Sep-08 2:40

il_manti

25-Sep-08 2:40

Hi Chris,

Yes thanks a lot. The enum was exactly what we needed, especially since we are able to expand the responses whenever needed now.

In life truth does not matter. What really matters is what others believe to be the truth. (The Up and Comer - Book)

Re: Web Service XML Tag Rename

c242325-Sep-08 4:02

c2423

25-Sep-08 4:02

Glad to have helped! Smile | :)

use control in other form

NiloofarNoroozi25-Sep-08 1:13

NiloofarNoroozi

25-Sep-08 1:13

how can i use txtNoPersoneli when this is in other form?

Re: use control in other form

DaveyM6925-Sep-08 1:25

DaveyM69

25-Sep-08 1:25

If txtNoPersoneli's access modifier is public then you should be able to access it through otherforminstance.txtNoPersoneli

Better still, create events in otherform that are rasied when whatever your interested in with txtNoPersoneli occurs, and subscribe to these in the initial form.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Expect everything to be hard and then enjoy the things that come easy. (code-frog)

Re: use control in other form

NiloofarNoroozi25-Sep-08 2:34

NiloofarNoroozi

25-Sep-08 2:34

i change to public,but yet i can not use that

Re: use control in other form

DaveyM6925-Sep-08 3:05

DaveyM69

25-Sep-08 3:05

You have to access it through an instance of the second form. For example, if the form is called Form2 then:

Form2 form2 = new Form2();
// any other stuff here
form2.txtNoPersoneli.Text = "Text";

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)

Re: use control in other form

DaveyM6926-Sep-08 3:06

DaveyM69

26-Sep-08 3:06

Whoever univoted this - I agree that it's not best practice and if you look at my previous reply I did suggest using events (implies delegates too). The question in response to that from the OP was specifically on the unrecommended way, to which I gave an accurate and working response! Dead | X|

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)

Re: use control in other form

N a v a n e e t h25-Sep-08 1:51

N a v a n e e t h

25-Sep-08 1:51

You change the access modifier to public, but it is not recommended as it breaks OO rules. Use delegates to communicate between forms. CP has an article on this subject.

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Re: use control in other form

nelsonpaixao25-Sep-08 12:47

nelsonpaixao

25-Sep-08 12:47

listen,

you have to use delegates, search: transfer data between form here in codeproject.

you may want to drop the idea of using more than 1 form Frown | :(

use parentform/childform method
or
1form + 10usercontrols (usercontrols that load in form like page, i use it a lot) method

i use delegates, see the following exemple
(here i trigger a text msg FROM usercontrol IN form):

in userform

public delegate void Delegate_TransferPageInfo(string msg);
public event Delegate_TransferPageInfo Event_TransferPageInfo;

private void ToolStripButton_Add_Click(object sender, EventArgs e)
{...
Event_DriverPageInfo("ERROR: invalid birth date");//trigger
...}

in form

private void Form_Main_Load(object sender, EventArgs e)
{...
UserControl_DriverPage_Child.Event_DriverPageInfo += new UserControl_DriverPage.Delegate_DriverPageInfo(Page_Info); 
...}
protected void Page_Info(string msg)
{
ToolStripStatusLabel_MainInfo.Text = msg;
}

can´t help you more!!! Poke tongue | ;-P

nelsonpaixao@yahoo.com.br

trying to help & get help

Finding Path

sirisha guttikonda25-Sep-08 0:59

sirisha guttikonda

25-Sep-08 0:59

Hi..

Is it possible to find the webcam images path through C#.Net code.

Thank you..

siri

Re: Finding Path

Rajesh R Subramanian25-Sep-08 1:08

Rajesh R Subramanian

25-Sep-08 1:08

What is a "webcam images path"?

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

Re: Finding Path

sirisha guttikonda25-Sep-08 1:10

sirisha guttikonda

25-Sep-08 1:10

i mean. when web cam captures an images by default it will be saved in somewhere....

i want to get that path.

siri

Re: Finding Path

Rajesh R Subramanian25-Sep-08 1:14

Rajesh R Subramanian

25-Sep-08 1:14

I don't know of a standard path where a webcam would store all the captured images. The app might store it in "my pictures", or in a folder where the app is installed. Different webcam applications may use different folders, don't you think? Roll eyes | :rolleyes:

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

Re: Finding Path

sirisha guttikonda25-Sep-08 1:18

sirisha guttikonda

25-Sep-08 1:18

Thanks for ur response..

Actually i need to store the web cam captured image dynamically

siri

Re: Finding Path

Rajesh R Subramanian25-Sep-08 1:53

Rajesh R Subramanian

25-Sep-08 1:53

So, have an option in your application where the user can specify the path on where to store the captured images. It would be ideal to create a folder, within the "My Pictures" folder, and store the images there by default.

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

Re: Finding Path

sirisha guttikonda25-Sep-08 2:01

sirisha guttikonda

25-Sep-08 2:01

But.I'm not able to the default saving location... i'm using hp wecam here...

any ideas please...

siri

Re: Finding Path

Rajesh R Subramanian25-Sep-08 2:07

Rajesh R Subramanian

25-Sep-08 2:07

There's no default saving location. Create a folder within My pictures like "My Captures" and store it within that folder.

sirisha guttikonda wrote:
i'm using hp wecam here

Umm... So, you are not writing an utility for a webcam yourself? Are you just intending to find the default location where this HP webcam stores the captured images? If yes, there must be an app that should be controlling it. Why not check with the settings?

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche

.·´¯`·->Rajesh<-·´¯`·.
[Microsoft MVP - Visual C++]

WPF designer problem (MarkupExtension ctor confuse the VS2008SP1 designer)

Super Lloyd25-Sep-08 0:57

Super Lloyd

25-Sep-08 0:57

I have a simple experimental WPF application which works fine.
However the designer is broken.

I'm working on a MarkupExtension which takes 2 parameter, here is the faulty XAML snippet:

<TextBlock
  Text="{Binding}"
  Background="{Binding
                   Converter={local:Script
                                    'if(value%2==0) Brushes.Red; else Brushes.Green;', {x:Type Brushes}}}"/>

And I got this error message in the designer: "Problem Loading ........ <<Button: Reload the designer>>"

If I click on the button it fails and I got this error message in the error list:
Error 1 No constructor for type 'ScriptExtension' has 2 parameters. C:\Dev\Tests\ExpressionConverter\ExpressionConverter\Window1.xaml 13 43 ExpressionConverter

But problem is, my has extension has all the required parameters!!!
here is a snippet of its C# code...

public class ScriptExtension : MarkupExtension
{
   public ScriptExtension(string code) { Init(code); }
   public ScriptExtension(string code, Type t0) { Init(code, t0); }
   public ScriptExtension(string code, Type t0, Type t1) { Init(code, t0, t1); }
   public ScriptExtension(string code, Type t0, Type t1, Type t2) { Init(code, t0, t1, t2); }
   public ScriptExtension(string code, Type t0, Type t1, Type t2, Type t3) { Init(code, t0, t1, t2, t3); }
   public ScriptExtension(string code, Type t0, Type t1, Type t2, Type t3, Type t4) { Init(code, t0, t1, t2, t3, t4); }

   void Init(string code, params Type[] types)
   {
       ......
    }
    .....
}

Any tip / work around (to re-enable the designer) please?!?

A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
_________________________________________________________
My programs never have bugs, they just develop random features.

how to debug through through external dlls

aiswaryasekhar25-Sep-08 0:50

aiswaryasekhar

25-Sep-08 0:50

hi all,

I have an exe and it contains some other dlls and using functions from that dll.I want to debug through that dll also using DbgCLR.exe.

can anybody help me to solve this problem?

Thanks & Regards
Aiswarya

Re: how to debug through through external dlls

leppie25-Sep-08 1:08

leppie

25-Sep-08 1:08

Sorry, you cant. Neither will you be able to step thru any code in the external dll, nor will it work on native dlls (you need VS for that).

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Re: how to debug through through external dlls

aiswaryasekhar25-Sep-08 18:46

aiswaryasekhar

25-Sep-08 18:46

hi,

thank you..

but iam able to step through the dll using the DbgCLR.exe once i get the il code.but what my problem is i want to step through the external dll referenced by the application also.is it possible?

Thanks
Aiswarya

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