C# Discussion Boards - CodeProject

DELETEUSER8-Feb-06 11:32

8-Feb-06 11:32

In a C# application I have created a rich text box (let's say richTextBox1) whose contents are saved to an XML file. Later I retrieve the text from XML file and display it in another rich text (let's say richTextBox2). If the text that I paste in richTextBox1 contains hyperlink associated to it then the url is displayed next to the word that initially contained hyperlink. Because of this when I retrieve the text in richTextBox2 it displays an url next to the word. It's too messy. Is there any way I can save and retrieve the hyperlink as in richTextBox1 and richTextBox2.

e.g. If I copy the below statement to paste in richTextBox1
"Click here for Hotmail" <-- note: Hotmail is the hyperlink.

If I paste the above text to richTextBox1 it gets pasted as below
"Click here for Hotmail <http://www.hotmail.com/NewFrameset?WelcomeForm> "

In richTextBox2 it retrives as

"Click here for Hotmail <http://www.hotmail.com/NewFrameset?WelcomeForm> "

I want it to display as

"Click here for Hotmail" <-- note: with Hotmail as the hyperlink.

Is there a way to do it?

thanks

----------
Venus Patel
http://patelsinc.blogspot.com/

A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.

Re: Rich Text Box and Hyperlinks

DigitalKing8-Feb-06 13:07

DigitalKing

8-Feb-06 13:07

Have a look at this article.

Converting and things to their html codes

eggie58-Feb-06 11:05

eggie5

8-Feb-06 11:05

How can I take the user input from a text box and convert it so that i can place it inside some XML? I.e. remove all the < > and replace them with < and >???

/\ |_ E X E GG

Re: Converting and things to their html codes

Edbert P8-Feb-06 11:28

Edbert P

8-Feb-06 11:28

AFAIK you can either turn them into HTML < and >, or use CDATA[^] to tell parser to ignore the text in between.

There are also functions people have written to convert special characters to their ascii code to allow storing as XML.

Edbert
Sydney, Australia

"A day without sunshine is like, you know, night."

-- modified at 17:28 Wednesday 8th February, 2006

DevExpress ASPxGrid question

golfaddict8-Feb-06 9:51

golfaddict

8-Feb-06 9:51

I'm trying to do an insert into another table while I'm doing an Update with the SqlDataSource control. Since the SqlDataSource control has no way of identifying the dataSet, How would I do the Insert then? PS I will be putting the code into the ASPxGrid1_UpdateCommand method since this will be called when I press the Update Button on the button bar. Again, I am not doing an insertion into the ASPxGrid, that would be easy.

Al Gorney

Passing string from C++ code to C#

Roman Muntyanu8-Feb-06 9:47

Roman Muntyanu

8-Feb-06 9:47

Hi all,

I am passing string from C++ to C# but not sure which way is more correct. Here it is:
First approach:
CDAnetCSharpHooks::PassString( )
{
char str[] = "String to pass";
DotNetObject *obj = new DotNetObject();
obj->UseStringInDotNet( str );
}

Second approach:
CDAnetCSharpHooks::PassString( )
{
char str[] = "String to pass";
CString temp(str);
System::String * dotNetStr = new System::String( temp);
DotNetObject *obj = new DotNetObject();
obj->UseStringInDotNet( dotNetStr );
}

C# method
public void UseStringInDotNet( String str )
{
// create new thread and use string in it
}

UseStringInDotNet() is creating new thread and that is why PassString() will finish its work before UseStringInDotNet() finishes its own.
Basically first approach is working, but sometimes on the .NET side I have some unpredictable behaviour in memory. I am wondering if that memory for str buffer is cleared before C# get its work done. In this respect will be the second approach more safe ?

Thank you very much in advance for any suggestions

Roman

Re: Passing string from C++ code to C#

leppie8-Feb-06 10:57

leppie

8-Feb-06 10:57

Roman Muntyanu wrote:
I am wondering if that memory for str buffer is cleared before C# get its work done. In this respect will be the second approach more safe ?

If you look at the IL code, you will see that it is in fact the same, the compiler auto converts char* -> String*. Smile | :)

I assume a copy of the buffer will be created, not sure though.

xacc.ide-0.1.2.6
New syntax highlight screenshots of xacc.ide

compile .dll into .exe file

sergej8-Feb-06 6:22

sergej

8-Feb-06 6:22

Hi!
I'm writing program, which send signals on output of LPT port and I'd like to compile driver inpout32.dll into .exe file, because I'd like to have just one file. Can somebody please tell me, how can I compile .dll file into .exe file?

P.S.: Please excuse any mistakes, because english is not my first language

Life is more Smile | :)

Re: compile .dll into .exe file

Judah Gabriel Himango8-Feb-06 7:27

Judah Gabriel Himango

8-Feb-06 7:27

If you need to merge your .NET dlls into your .NET exe, you can use the free ILMerge[^] tool from Microsoft.

Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Connor's Christmas Spectacular!
Judah Himango

TreeView Send Message Error

sameerhanda8-Feb-06 5:36

sameerhanda

8-Feb-06 5:36

Ok,I have a generic Treeview component that I have inherited and it has the following error. When I try to click on the X on the control bar I get the following error:

External component has thrown an exception. Here is the stack trace..

at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.ComponentManager.System.Windows.Forms.UnsafeNativeMethods+IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(ApplicationContext context)....

I have traced this error to the SendMessage fuction i.e the following line

[DllImport("user32.dll")]
private static extern int SendMessage (IntPtr hWnd, int wMsg, IntPtr wParam,int lParam);

If I comment this out in the code and all calls to this function it works fine. Any ideas on the correct fix for this.

As always all help is appreciated.

Sameer Sniff | :^)

Re: TreeView Send Message Error

DigitalKing8-Feb-06 9:20

DigitalKing

8-Feb-06 9:20

Try using this version of the function:

<br />
[DllImport("user32.dll")]<br />
static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);<br />

images uploading and displaying

Net-Programer-and-developer8-Feb-06 4:35

Net-Programer-and-developer

8-Feb-06 4:35

how to upload images into sql server and getting the same image from the database to dispaly it?

sowjanyakumar

Re: images uploading and displaying

Ingo8-Feb-06 5:28

Ingo

8-Feb-06 5:28

Use the field type image. You can write an image directly to the database and then read it again.

Greetings,
Ingo

------------------------------
A bug in a Microsoft Product? No! It's not a bug it's an undocumented feature!

Symbolic Integration & Automatic Differentiation

Naveed Shoaib8-Feb-06 4:23

Naveed Shoaib

8-Feb-06 4:23

I am trying to create a software in C# that has the capability of performing Symbolic Integration & Symbolic Differentiation. Can anybody help me with a few algorithms or source code.

Thanks
Naveed

Re: Symbolic Integration & Automatic Differentiation

Ingo8-Feb-06 5:25

Ingo

8-Feb-06 5:25

For finding an Integral there exists the Risch algorithm. You should use Google to find it. More about symbolic Differentation can be found at MIT-Press Homepage (e.g. http://mitpress.mit.edu/sicp/full-text/sicp/book/node39.html[^]).

Normally other languages are better for such implementations (lisp for example). You can even use standard software if you like (such as maple or mupad)

Greetings,
Ingo

------------------------------
A bug in a Microsoft Product? No! It's not a bug it's an undocumented feature!

User Control Change Data

tadhg888-Feb-06 4:19

tadhg88

8-Feb-06 4:19

hey i am havin some probs triny to change the contents of a dropDown list that is part of a user control on an asp.net page, when the user changes the dat in the date control i need to check what shud be displayed in the dropDown list for that date and change its contents anyone have any ideas how to go about doin this a an overview wud be very helpful. thanks in advance

Using the XML.Serialize

NewbieDude8-Feb-06 3:46

NewbieDude

8-Feb-06 3:46

Hey Howzit,

I would like to know how to use the System.Xml.Serialize method to serialize a Textbox or Button into an Xml document.

Can anyone help?

Unset ReadOnly? (Basic BitWise Question!)

MartinSmith8-Feb-06 3:37

MartinSmith

8-Feb-06 3:37

Hi.

I am trying to leave all the other attributes of a file alone but unset read only.

I am trying

File.SetAttributes(strFileToStreamPath, File.GetAttributes(strFileToStreamPath) ^ FileAttributes.ReadOnly);

which works fine if the file is read only but not if it isn't (it makes it read only!)

How do I do a "OR NOT" sort of thing. I can't see any examples of this in the documentation?

Cheers,

Martin

Re: Unset ReadOnly? (Basic BitWise Question!)

User 66588-Feb-06 3:47

User 6658

8-Feb-06 3:47

Have you tried &~ ?
The the bitwise "AND NOT" operator.

regards

modified 12-Sep-18 21:01pm.

Re: Unset ReadOnly? (Basic BitWise Question!)

MartinSmith8-Feb-06 3:52

MartinSmith

8-Feb-06 3:52

Thank You!

I've just tried it and that works great!

Home directory

TonyLinde8-Feb-06 3:22

TonyLinde

8-Feb-06 3:22

How can I find the user's home directory, eg C:\Documents and Settings\Tony? Is there a system constant I can use?

Thanks,
Tony.

Re: Home directory

User 66588-Feb-06 3:45

User 6658

8-Feb-06 3:45

Environment.GetFolderPath(SpecialFolder.ApplicationData)

regards

modified 12-Sep-18 21:01pm.

Re: Home directory

TonyLinde8-Feb-06 3:59

TonyLinde

8-Feb-06 3:59

Hi Greeg, that gets 'C:\Documents and Settings\Tony\Application Data' whereas I was looking for the parent of that directory. Is there no Xxxx.HomeDirectory?

Thanks,
Tony.

Re: Home directory

User 66588-Feb-06 4:11

User 6658

8-Feb-06 4:11

I'm not completely sure which parameter is correct, all of them are mentioned here, just try them out Smile | :)

If there is no such parameter, you could strip the path like this:

string path = Environment.GetFolderPath(SpecialFolder.ApplicationData);<br />
string newpath = path.Substring(0, path.LastIndexOf(@"\"));

modified 12-Sep-18 21:01pm.

Re: Home directory

TonyLinde8-Feb-06 4:31

TonyLinde

8-Feb-06 4:31

Thanks again, Greeg. I'll use your code but have also informed the creator of the file that he might be putting it in the wrong place.

Cheers,
Tony.

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