Globally accessible properties - C# Discussion Boards

Re: How to change "ReadOnly" value with Controls[]

11-Sep-06 6:15

Hello

You must cast your control first from Control type to RichTextBox type:

Control MyControl = Controls[id + "gbR" + r].Controls[id + "rtbRunda" + r + "ABin"];
if(MyControl is RichTextBox)
{
    ((RichTextBox)MyControl).ReadOnly = p;
}
else
{
    //It wasn't a RichTextBox
}

Regards

N3croman11-Sep-06 6:23

N3croman

11-Sep-06 6:23

Yes, it needs two pairs of parentheses, when casting, oh my... Smile | :)

((RichTextBox)Controls[id + "gbR" + r].Controls[id + "rtbRunda" + r + "ABin"]).ReadOnly = p;
Thanx for advice!

Re: How to change "ReadOnly" value with Controls[]

Judah Gabriel Himango11-Sep-06 7:09

Judah Gabriel Himango

11-Sep-06 7:09

Hi Nader

Just a small nitpick, but the code you posted requires a double cast: one cast to check if the control is a RichTextBox, then another cast to cast it to a RichTextBox.

Here's a superior way to do it:

RichTextBox richTextBoxControl = myControl as RichTextBox;
if(richTextBoxControl != null)
{
    richTextBoxControl.Readonly = p;
}
else
{
    // It isn't a RichTextBox.
}

Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Dumbest. Movie. Title. Evaaar.
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Judah Himango

"This assembly does not allow partially trusted callers" when program executed from network drive

Nigor11-Sep-06 6:01

Nigor

11-Sep-06 6:01

I have a remoting app that works fine when executed from a local hard drive, but will give "This assembly does not allow partially trusted callers" exception when executed from a network drive. The remoting app is used for transfering files. The code for server, shared assembly, and client:

<br />
// Client:<br />
// ---------------------------------------------------------------<br />
<br />
using System;<br />
using System.Collections;<br />
using System.Collections.Generic;<br />
using System.Text;<br />
using System.Runtime.Remoting;<br />
using System.Runtime.Remoting.Channels;<br />
using System.Runtime.Remoting.Channels.Http;<br />
using System.IO;<br />
<br />
namespace RemotingTest<br />
{<br />
class Program<br />
{<br />
static void Main(string[] args)<br />
{<br />
IDictionary properties = new Hashtable();<br />
<br />
SoapClientFormatterSinkProvider clientSinkProvider = new SoapClientFormatterSinkProvider();<br />
SoapServerFormatterSinkProvider serverSinkProvider = new SoapServerFormatterSinkProvider();<br />
<br />
serverSinkProvider.TypeFilterLevel =<br />
System.Runtime.Serialization.Formatters.TypeFilterLevel.Full;<br />
<br />
properties["name"] = "";<br />
properties["port"] = 0;<br />
properties["typeFilterLevel"] = "Full";<br />
<br />
HttpChannel commChannel = new HttpChannel(properties, clientSinkProvider, serverSinkProvider);<br />
<br />
ChannelServices.RegisterChannel(commChannel, false);<br />
<br />
RemotingConfiguration.RegisterWellKnownClientType(<br />
typeof(ServerInterface),<br />
"http://igor.no-ip.ca:1024/Server"); // change to appropriate address here<br />
<br />
ServerInterface server = new ServerInterface();<br />
<br />
string text = "";<br />
<br />
while((text = Console.ReadLine()) != "Quit")<br />
{<br />
Console.WriteLine(server.ShowText("testing string"));<br />
Console.WriteLine(server.ShowFileInfo(text).Name);<br />
}<br />
<br />
Console.Read();<br />
}<br />
}<br />
}<br />
<br />
<br />
// Server Interface:<br />
// ------------------------------------------------------------<br />
<br />
<br />
using System;<br />
using System.Collections.Generic;<br />
using System.Text;<br />
using System.IO;<br />
<br />
namespace RemotingTest<br />
{<br />
public class ServerInterface: MarshalByRefObject<br />
{<br />
public FileInfo ShowFileInfo(string filename)<br />
{<br />
Console.WriteLine("Filename " + filename + " requested");<br />
<br />
return new FileInfo(filename);<br />
}<br />
<br />
public string ShowText(string text)<br />
{<br />
Console.WriteLine(text);<br />
<br />
return "\"" + text + "\" show on the server.";<br />
}<br />
}<br />
}<br />
<br />
<br />
// Server:<br />
// --------------------------------------------------------------------<br />
<br />
<br />
using System;<br />
using System.Collections;<br />
using System.Collections.Generic;<br />
using System.Text;<br />
using System.Runtime.Remoting;<br />
using System.Runtime.Remoting.Channels;<br />
using System.Runtime.Remoting.Channels.Http;<br />
<br />
namespace RemotingTest<br />
{<br />
class Program<br />
{<br />
static void Main(string[] args)<br />
{<br />
IDictionary properties = new Hashtable();<br />
<br />
SoapServerFormatterSinkProvider serverSinkProvider = new SoapServerFormatterSinkProvider();<br />
<br />
serverSinkProvider.TypeFilterLevel =<br />
System.Runtime.Serialization.Formatters.TypeFilterLevel.Full;<br />
<br />
properties["name"] = "";<br />
properties["port"] = 1024;<br />
properties["typeFilterLevel"] = "Full";<br />
properties["machineName"] = "igor.no-ip.ca"; // THE MAGIC LINE !!!<br />
<br />
HttpChannel commChannel = new HttpChannel(properties, null, serverSinkProvider);<br />
<br />
ChannelServices.RegisterChannel(commChannel, false);<br />
<br />
RemotingConfiguration.RegisterWellKnownServiceType(<br />
typeof(ServerInterface),<br />
"Server", WellKnownObjectMode.SingleCall);<br />
<br />
Console.Read();<br />
}<br />
}<br />
}<br />

Please help.

Re: "This assembly does not allow partially trusted callers" when program executed from network drive

Judah Gabriel Himango11-Sep-06 7:02

Judah Gabriel Himango

11-Sep-06 7:02

If you want your application to allow partially trusted callers, go into AssemblyInfo.cs (typically auto-generated in the Properties folder of your solution) and add the following line:

[assembly: System.Security.AllowPartiallyTrustedCallers]

Globally accessible properties

WetRivrRat11-Sep-06 5:47

WetRivrRat

11-Sep-06 5:47

hey all, i'm sure this is a dumb question:
but...
How do I create / access / modify properties that are available to all classes of my solution?
iow, I have a main namespace, and multiple forms that are all separate classes/.dlls.
I need to beable to access the properties of the main form throughout the rest of the application, regardless of whether or not the sub classes are instaniated yet.

So..
ClassA(mainFrm) calls ClassB(subUsrCrtl1) which does some work then calls ClassC(subUsrCtrl2) which displays extended info from the work done in ClassB. Then ClassA can call ClassD(E,F,G,etc)(subUsrCrtl3(,4,5,6,etc)) who make other information available based on the work done in ClassB. Many of the classes that are available are not used everytime, so they aren't instantiated yet.
I need to beable to retrieve data from the work that is completed in ClassB and use that data throughout all available classes.

Currently I'm only able to access that data in a class to class relationship where I end up with either old or null values becuase i'm having to instantiate the required class again from the current class...(i.e. ClassA calls ClassD, ClassD needs data from ClassB, so ClassD instantiates new ClassB but that returns null data...)

hope this make sense, cause i'm lost....

ehlp.... wait i can't even spell help...

string Beautiful;
Beautiful = "ignorant";
label1.Text = "The world is full of " + Beautiful +" people.";

Why is common sense such an un-common comodity?

Re: Globally accessible properties

Bijesh11-Sep-06 6:39

Bijesh

11-Sep-06 6:39

If you want values to be used across different instances it is better to make those properties as static members of the class and access them from the class scope.

A better approach would be to take out the information you want to make available across the application and put them into one class. Make a static instance of that class to use across the other classes.

--------------------------------------------------

Compile with specified version of .NET framework

dobrzan11-Sep-06 5:37

dobrzan

11-Sep-06 5:37

Ok, I know that this is something stupid... but I'm trying to write my first project in C#. Unfortunately I have only VS 2005 (my friend is using Express Ed).
The lab machine that project must work on have .NET 1.1

Is there any way to set VS to compile my project with .NET 1.1
I want to be sure that what I'm using will be working on machine with .NET 1.1 and without .NET 2.0

Please give some help about that, If this is stupis question then fill free to write that (along with explanation).

I need to finish the project fast... thats way I can't afford to search this information or to actually test my app on machine with .NET 1.1

Thanks for any help

best regards,
Slawek

PS. link to MSDN page will be great Smile | :)

Re: Compile with specified version of .NET framework

Insincere Dave11-Sep-06 6:00

Insincere Dave

11-Sep-06 6:00

You could could try MSBee or SharpDevelop.

Re: Compile with specified version of .NET framework

WetRivrRat11-Sep-06 6:05

WetRivrRat

11-Sep-06 6:05

http://msdn.microsoft.com/vstudio/downloads/tools/msbee/default.aspx

string Beautiful;
Beautiful = "ignorant";
label1.Text = "The world is full of " + Beautiful +" people.";

Why is common sense such an un-common comodity?

XML reader problem

Scalee11-Sep-06 4:11

Scalee

11-Sep-06 4:11

Im trying to read out an xml file which has several files inside like this:

<File Name="Luc.JPG" Src="50000000.000"><br />
- <MetaInfo><br />
<MetaKey Name="vti_modifiedby" Value="SR|SCALEHOSTING\scale" /><br />
<MetaKey Name="vti_filesize" Value="IR|384548" /><br />
<MetaKey Name="vti_timecreated" Value="TR|30 Jun 2006 16:30:19 -0000" /><br />
<MetaKey Name="vti_lastheight" Value="IX|1200" /><br />
<MetaKey Name="vti_timelastmodified" Value="TR|30 Jun 2006 16:30:19 -0000" /><br />
<MetaKey Name="vti_lastwidth" Value="IX|1600" /><br />
<MetaKey Name="vti_author" Value="SR|SCALEHOSTING\scale" /><br />
<MetaKey Name="vti_sourcecontrolversion" Value="SR|V1" /><br />
<MetaKey Name="vti_sourcecontrolcookie" Value="SR|fp_internal" /><br />
</MetaInfo><br />
</File>

I have tryed several examples but i simply cant figure it out,
any help appriciated.

Scale.

Not Active11-Sep-06 4:35

Not Active

11-Sep-06 4:35

You are going to have to be more specific as to what your problem is

only two letters away from being an asset

Scalee11-Sep-06 5:58

Scalee

11-Sep-06 5:58

Ill try i have a file manifest.xml,
its filled with file entry's an example of a file entry:

<file name="Luc.JPG" src="50000000.000">
- <metainfo>
<metakey name="vti_modifiedby" value="SR|SCALEHOSTING\scale">
<metakey name="vti_filesize" value="IR|384548">
<metakey name="vti_timecreated" value="TR|30 Jun 2006 16:30:19 -0000">
<metakey name="vti_lastheight" value="IX|1200">
<metakey name="vti_timelastmodified" value="TR|30 Jun 2006 16:30:19 -0000">
<metakey name="vti_lastwidth" value="IX|1600">
<metakey name="vti_author" value="SR|SCALEHOSTING\scale">
<metakey name="vti_sourcecontrolversion" value="SR|V1">
<metakey name="vti_sourcecontrolcookie" value="SR|fp_internal">

On disk i have a 500000000.000 file which i need to rename into luc.jpg (the rest aint that important).
But i cant figure out how to read out all the specif lines with

Not Active11-Sep-06 6:36

Not Active

11-Sep-06 6:36

Scalee wrote:
I hope this is beter explained

only two letters away from being an asset

how to send letters like é § è ç to the serial com port?

Scalee11-Sep-06 8:06

Scalee

11-Sep-06 8:06

The most simple way i can put it would be:

I have an XML file with allot of lines:

<file name="Luc.JPG" src="50000000.000"> but difference source and file names.
Also allot of other crap.

Now i need to read out that XML file and get all lines that start with

faladrim11-Sep-06 3:39

Re: how to send letters like é § è ç to the serial com port?

11-Sep-06 3:39

hi,
i have a read write communication form one port of my pc to another working fine, but i can't send spacial characters like é#§èçà i get a ? on the received side.
does anybody know what i should add to my project?
thx

Nader Elshehabi11-Sep-06 6:09

Re: how to send letters like é § è ç to the serial com port?

11-Sep-06 6:09

Hello

If you are using byte arrays to comunicate with your post, then it should work fine, and the interpretaion is the responsibility of the recipient.

If you are using strings to transfer data to/from your port, then check the Encoding of your string.

One last note... Are you sing .Net 2.0 framework?

Regards

faladrim11-Sep-06 20:45

Re: how to send letters like é § è ç to the serial com port?

11-Sep-06 20:45

yes i am and i use textbox.text = port.readline() function
so were should i check the encoding?
thx

Nader Elshehabi11-Sep-06 21:23

Re: how to send letters like é § è ç to the serial com port?

11-Sep-06 21:23

Hello

Try this conversion. It's not the best practice but fever got my mind blind. I can't really think of something better at the moment.

textbox.Text = Encoding.UTF32.GetString(Encoding.UTF32.GetBytes(port.ReadLine()));

If it doesn't work, try using other encodings provided in the Encoding class.

Regards

faladrim11-Sep-06 22:04

Re: how to send letters like é § è ç to the serial com port?

11-Sep-06 22:04

to bad

non of the encodings work, perhaps i should encode the sended text?
but i'm not sure how i convert the txtbox string to a byte[] or char[]
so i can use: port.writeline(encoding.utf32.getbyte(textbox.text))
thx anyway Wink | ;)

Nader Elshehabi12-Sep-06 3:45

Re: how to send letters like é § è ç to the serial com port?

12-Sep-06 3:45

Hello

To send encoded bytes array...

byte[] MyBuffer = Encoding.UTF8.GetBytes(textBox1.Text);//Choose any encoder
MyPort.Write(MyBuffer, 0, MyBuffer.Length);

...and reverse the process on the other side.

Regards

faladrim12-Sep-06 20:59

Re: how to send letters like é § è ç to the serial com port?

12-Sep-06 20:59

lo, thx for the tip,
but i dont know how to reverse it :s

faladrim12-Sep-06 22:06