Re: joining two richtextboxes - C# Discussion Boards

prgramya3-Apr-06 23:04

3-Apr-06 23:04

hi iam working on a c# application that captures video from web cam. I need to compress the video file before saving using c# code independent of the compressors of web cam as different webcams have different compressors ,can anyone help in solving this problem so that the video file can be compressed for any web cam used.
thanks
Suspicious | :suss:

ramya

problem using Response.Flush

smadan3-Apr-06 22:53

smadan

3-Apr-06 22:53

Hi,

I am working on a web application where i need to use Response.Flush to display the status of progress. But, after using Response.Flush, i am unable to use anything with Response i.e Response.Content-Type, Response.Redirect etc, all give error that read "Server cannot set content type after HTTP headers have been sent".

Can someone suggest any alternative solution to show progress in status bar other than using Response.Flush? or how can i make response.redirect and response.content-type work after using response.flush?

Thanks

Re: problem using Response.Flush

Vasudevan Deepak Kumar4-Apr-06 5:12

Vasudevan Deepak Kumar

4-Apr-06 5:12

It is Http Spec right. Body follows Header. The flush would have started to stream the content and then setting or modifying the headers would'nt be possible since headers collection have already been sent to the web browser.

Vasudevan Deepak Kumar
Personal Web: http://www.lavanyadeepak.tk/
I Blog At:
http://www.dotnetjunkies.com/weblog/deepak/
http://deepakvasudevan.blogspot.com/
http://deepak.blogdrive.com/

Application in a Fixed dialog like window

Dave McCool3-Apr-06 22:17

Dave McCool

3-Apr-06 22:17

I have a panel on my form and what I want is when the user double clicks the panel, it will load the date and time properties window (Microsoft WIndows Date and time screen) So the user can change the time and date. BUT I would like (if possible) The application to load as a fixed dialog screen so you would have to use it or you could not do anything else. ANy suggestions how I could do this?

In the end we're all just the same

Re: Application in a Fixed dialog like window

Glaxalg4-Apr-06 4:45

Glaxalg

4-Apr-06 4:45

Something like:

<br />
Process oProc = new Process();<br />
oProc.StartInfo.FileName = "control.exe";<br />
oProc.StartInfo.Arguments = "date/time";<br />
oProc.Start();<br />
oProc.WaitForExit();<br />

You can launch date/time property window using:
"control.exe timedate.cpl"
or
"control.exe date/time"
or
"rundll32.exe shell32.dll,Control_RunDLL timedate.cpl"

joining two richtextboxes

john343-Apr-06 22:07

john34

3-Apr-06 22:07

Hi all,

I have two rich text boxes that I need to join together for example

........RichTextbox1 + Richtextbox2 = Richtextbox1(after join)
Line1........a................b..................ab
Line2........c................D..................CD
Line3........e................f..................ef

I can spin through it line by line but there are over 3000 and this is causing the application to crash Frown | :-(

I have tried using Append, insert, += within the loop through the lines but it is still unstable !

Any help would be most appreciated !!!! Smile | :)

Thanks in advance
John

-- modified at 4:10 Tuesday 4th April, 2006

Re: joining two richtextboxes

Robert Rohde3-Apr-06 22:50

Robert Rohde

3-Apr-06 22:50

You could try looping through them line by line (like you are already doing) and putting the text into a StringBuilder. This should be by far faster and the controls are not stressed. After everything is finished set the complete text to your richtextbox: myRichTextBox.Text = myStringBuilder.ToString():

Re: joining two richtextboxes

CooperWu3-Apr-06 23:07

CooperWu

3-Apr-06 23:07

How about define a variable to store the text in two RichTextBox？
Then using += to join them.
after join all lines. then put result text to RichTextBox1.

--
hoping it help you.

Re: joining two richtextboxes

john344-Apr-06 4:52

john34

4-Apr-06 4:52

Hi all

Thanks for the response ! but i am still getting the issue

I am currently using :

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

System.Text.StringBuilder sb = new System.Text.StringBuilder();

for (int i = 0; i < RichText.Lines.Length; i++)
{
sb.Append(RichText.Lines[i] + tempData);
}
RichText.AppendText(Convert.ToString(sb));

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

This will run for a random number of rows before crashing Frown | :-(

i am going through 6000 + lines (do you think this is an issue).

I have tried a few variations on this theme as stated in previous posts. i have also tried textbox instead of a richtextbox. I AM ALL OUT OF IDEAS !!!!

any help would be fab

Thanks

Re: joining two richtextboxes

Richard Parsons4-Apr-06 11:22

Richard Parsons

4-Apr-06 11:22

Have you tried something like
rtb = RichTextBox

//if you need the styles to copy also
rtb3.RTF = rtb1.RTF + rtb2.RTF

//if you don't care about the styles
rbt3.Text = rtb1.Text + rtb2.Text

-Richard

Re: joining two richtextboxes

john344-Apr-06 23:27

john34

4-Apr-06 23:27

Thanks for the reply !

Will that not just put rtb2 at the bottom of rtb1 ?

What i need is to append the first line of rtb2 to the first line of rtb1 and the sencond line of rtb2 on the second line of rtb1 and so on.....

Re: joining two richtextboxes

Richard Parsons6-Apr-06 3:36

Richard Parsons

6-Apr-06 3:36

Sorry I didn't read you org post carefully enough.
In that case your best bet is the solution provided above by Robert Rohde I think.

-Richard

How to use simple c++ console app in C#

hg27053-Apr-06 21:50

hg2705

3-Apr-06 21:50

Can some one point me in the right direction on how to implement a smal C++ console app in Csharp.

Re: How to use simple c++ console app in C#

Stefan Troschuetz3-Apr-06 21:59

Stefan Troschuetz

3-Apr-06 21:59

For clarification:
1. Do you want to use or implement the C++ console app in C#? (Whereas the second doesn't make any sense to me, cause how should i implement a C++ app with C#)
2. What exactly do you mean by use (if that's what you want)?

www.troschuetz.de

Re: How to use simple c++ console app in C#

hg27053-Apr-06 22:05

hg2705

3-Apr-06 22:05

I'm implementing two diferrent code parts.

I'ts a chessplay. I have the functionality in C++. Now a want to add a GUI to the game. So a want to use functions in C++ from C#

Re: How to use simple c++ console app in C#

Stefan Troschuetz3-Apr-06 23:43

Stefan Troschuetz

3-Apr-06 23:43

I think you'll have to pinvoke the functions. But I'm not sure if it's possible when there inside a console app. Didn't use it much besides calling some win32 apis.

www.troschuetz.de

Re: How to use simple c++ console app in C#

Dan Neely4-Apr-06 2:10

Dan Neely

4-Apr-06 2:10

You can attach your own streams to a System.Diagnostics.Process class object to send/recieve console style input.

Re: How to use simple c++ console app in C#

Vasudevan Deepak Kumar4-Apr-06 5:10

Vasudevan Deepak Kumar

4-Apr-06 5:10

If you want to launch C++ app in C#, you can use Process.Start (System.Diagnostics namespace)

Vasudevan Deepak Kumar
Personal Web: http://www.lavanyadeepak.tk/
I Blog At:
http://www.dotnetjunkies.com/weblog/deepak/
http://deepakvasudevan.blogspot.com/
http://deepak.blogdrive.com/

Re: How to use simple c++ console app in C#

Expert Coming4-Apr-06 20:42

Expert Coming

4-Apr-06 20:42

Maybe you want to make your own DLL with the console functions, and methods.

how to download directx 9.0 SDK for framework 1.0 ?

hdv2123-Apr-06 20:59

hdv212

3-Apr-06 20:59

hi i want to download Directx .0 SDK For Framework 1.0 from this link :

http://www.microsoft.com/downloads/details.aspx?FamilyID=edb98ffa-a59c-4c23-9b92-ba304f188314&DisplayLang=en

but when i follow steps for download,microsoft say to me :

Validation Incomplete: Windows Must Be Activated

how to download it without this problem ?

or please give me another links to download dx90 sdk and documention and ...
thanks

Re: how to download directx 9.0 SDK for framework 1.0 ?

leppie4-Apr-06 0:37

leppie

4-Apr-06 0:37

hdv212 wrote:
how to download it without this problem ?

Buy Windows XP D'Oh! | :doh:

xacc.ide-0.1.3.2

Re: how to download directx 9.0 SDK for framework 1.0 ?

Vasudevan Deepak Kumar4-Apr-06 5:11

Vasudevan Deepak Kumar

4-Apr-06 5:11

You need to be logged on as Administrator since Windows Validation is an ActiveX Control.

But I think it is only one time process. Is'nt it?

Vasudevan Deepak Kumar
Personal Web: http://www.lavanyadeepak.tk/
I Blog At:
http://www.dotnetjunkies.com/weblog/deepak/
http://deepakvasudevan.blogspot.com/
http://deepak.blogdrive.com/

Base Class or common static method?

moazzamahmed3-Apr-06 20:05

moazzamahmed

3-Apr-06 20:05

I cant figure out when to use base classes and when to use common
methods that just take in different parameters and do the same task,
instead of having 1 method for each of my objects.

ok so in my data layer (3-tier enterprise web solution), I have
4 classes: mygets, myinserts, mydeletes, myupdates.

Each of these hit the database and do the appropriate work for
7 of my tables: tb1, tb2, tb3 ... tb7

mygets has these methods gettb1(tb1key), getAlltb1, gettb2(tb2key), getAlltb2 ... tb7
each returns a dataset

myinserts takes all fields for tables (as sql parameters) and adds them:
addtb1(field1, field2 ... ), addtb2(field1, field2, ... ) etc.

same for myupdates and mydeletes.

whats the best way to structure having to code the least, and have it
consistent: base classes which have the common functions for each of these 4?
or static methods that basically take in different parameters and get the same
stuff done?

which is more efficient?

related question: are base classes just a better "location" to put common
methods that can be used by a lot of classes? classes that derive from them?

thanks

M

-- modified at 2:09 Tuesday 4th April, 2006

Re: Base Class or common static method?

Maqsood Ahmed3-Apr-06 20:38

Maqsood Ahmed

3-Apr-06 20:38

Hello,
Why not use static overloaded methods from a class say "DatabaseHelperClass"?

GetRows(string key,string value, string tableName)<br />
GetRows(Hashtable filter,string tableName)<br />
GetRows(string tableName)

and same for other tasks??? As far as additions/updates are concerned, you can put the values in a hashtable such that the Key represents the column name and value represents the value of the column you want to add or update in the table. with respect to the key..

For Additions
AddRow(string tableName,Hashtable values)

For Updates

UpdateRows(string key, string value, string tableName, Hashtable values)<br />
GetRows(Hashtable filter,string tableName, Hashtable values)<br />
UpdateRows(string tableName, Hashtable values)

you can do similar for deletions as well. Don't you think it will be a clean approach?

Maqsood Ahmed - MCAD.net
Kolachi Advanced Technologies
http://www.kolachi.net

Re: Base Class or common static method?

moazzamahmed4-Apr-06 6:11

moazzamahmed

4-Apr-06 6:11

yeah thats what Im doing: I have overloaded functions that do Gets, Insert, Deletes and Updates
for ALL tables.

My question was: where should I put these overloaded functions? in a base class or as common static methods in another class called Utils?

I realized base classes are only useful for object classes, meaning non-static instances.

And also, in my business layer, I do have one class for each table which becomes an object. These table objects then use my data layer to get, insert, delete and update.

pretty clean huh! Smile | :)

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