Re: Post Build Step in C# - C# Discussion Boards

Nish Nishant2-Aug-02 1:05

2-Aug-02 1:05

How do I know which row in the rich text box has the focus now?

Say I am overriding WndProc and checking for WM_KEYDOWN I'd like to figure out which row in the rich text box the cursor is curently located.

I dont mean the screen row [if it has scrolled down quite a bit, the 3rd visible row on screen might actually be the 44th row] I want the actual row here because I want to get that line of text using the Lines property but for that I need to know the index of the row Frown | :-(

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Re: A rich edit question

Nathan Blomquist2-Aug-02 1:15

Nathan Blomquist

2-Aug-02 1:15

Try counting the newlines (ie "\r\n")?

I think that should work...

Later,
Nathan

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Re: A rich edit question

Nish Nishant2-Aug-02 1:25

Nish Nishant

2-Aug-02 1:25

Nathan Blomquist wrote:
Try counting the newlines (ie "\r\n")?

But till where do I count them? I have to know where the current pointer is right?

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Re: A rich edit question

Nathan Blomquist2-Aug-02 2:28

Nathan Blomquist

2-Aug-02 2:28

Nishant S wrote:
But till where do I count them? I have to know where the current pointer is right?

Use the selectionstart property.

----------------
Quote from MSDN:

Gets or sets the starting point of text selected in the text box.
[C#]
public int SelectionStart {get; set;}
.
.
.
Remarks
If no text is selected in the control, this property indicates the insertion point for new text. If you set this property to a location beyond the length of the text in the control, the selection start position will be placed after the last character. When text is selected in the text box control, changing this property may decrease the value of the SelectionLength property. If the remaining text in the control after the position indicated by the SelectionStart property is less than the value of the SelectionLength property, the value of the SelectionLength property is automatically decreased. The value of the SelectionStart property never causes an increase in the SelectionLength property.

Note You can programmatically move the caret within the text box by setting the SelectionStart to the position within the text box where you want the caret to move to and set the SelectionLength property to a value of zero (0). The text box must have focus in order for the caret to be moved.
--------

The SelectionStart property should return the current position in the RichEditBox.

Hope this helps,
Nathan

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TextBoxBase.OnModifiedChanged problem

Nish Nishant1-Aug-02 22:41

Nish Nishant

1-Aug-02 22:41

I have a class derived from the System.Windows.Forms.TextBox.

I have overridden TextBoxBase.OnModifiedChanged but it never gets called even when I change the text in the text control Frown | :-(

Has anyone else experienced the same problem?

Nish Frown | :-(

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Re: TextBoxBase.OnModifiedChanged problem

Nish Nishant1-Aug-02 22:47

Nish Nishant

1-Aug-02 22:47

Er, I should have called OnTextChanged

Blush | :O

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Post Build Step in C#

Firoz1-Aug-02 20:09

Firoz

1-Aug-02 20:09

Hi,

I was not able to find the option for PostBuild Action in the C# Project Properties.
(Where I can Specify some Dos commands to run after the project is Compiled)

Is there any alternative feature avaliable?

Thanks,

FiroZ

Re: Post Build Step in C#

Nathan Blomquist2-Aug-02 1:17

Nathan Blomquist

2-Aug-02 1:17

FiroZ wrote:
Is there any alternative feature avaliable?

You can add an empty Visual C++ project and then do post builds from that project. Just make sure that the empty C++ project is built last in the solution.

Later,
Nathan

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Re: Post Build Step in C#

Andy Smith2-Aug-02 5:22

Andy Smith

2-Aug-02 5:22

MSDN has a BuildRules visual studio addin. It lets you add pre and post build commands to solutions and projects.

can't find the link right now... but i know it's on there somewhere

Anyone wanna see

Nnamdi Onyeyiri1-Aug-02 8:08

Nnamdi Onyeyiri

1-Aug-02 8:08

....a really fcuked up looking class for a control?

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Re: Anyone wanna see

leppie1-Aug-02 8:13

leppie

1-Aug-02 8:13

HAHAHAH

Yes

MYrc : A .NET IRC client with C# Plugin Capabilities. See
http://sourceforge.net/projects/myrc for more info. Big Grin | :-D

Re: Anyone wanna see

Nnamdi Onyeyiri1-Aug-02 8:15

Nnamdi Onyeyiri

1-Aug-02 8:15

http://www.onyeyiri.co.uk/control.txt[^]

i made it, therefore, tis crap. Frown | :(

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Re: Anyone wanna see

leppie1-Aug-02 8:39

leppie

1-Aug-02 8:39

Some example code would be nice Smile | :)

Cant seem to work it into a form, seems a bit messed up Confused | :confused:

And why does people write controls without default constructors?

MYrc : A .NET IRC client with C# Plugin Capabilities. See
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Re: Anyone wanna see

Nnamdi Onyeyiri1-Aug-02 8:46

Nnamdi Onyeyiri

1-Aug-02 8:46

Card[] crds = new Card[3];
 
crds[0] = Card.New("My Text", 0);
crds[0].Font = new Font("Times New Roman", 10, FontStyle.Bold);
 
crds[1] = Card.New("My Text", 1, CardShape.Circle);
crds[1].Shadow = false;
 
crds[2] = Card.New("Solid Colours", 1);
crds[2].CardUp = Color.SkyBlue;
crds[2].CardOver = Color.SteelBlue;
crds[2].CardDown = Color.Navy;
 
CardCtrl crd = new CardCtrl(crds);
// normal stuff to size and place it on a form.

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Re: Anyone wanna see

James T. Johnson1-Aug-02 13:20

James T. Johnson

1-Aug-02 13:20

leppie wrote:
And why does people write controls without default constructors?

Because they don't have VS.NET or they use MC++ to test it so they don't realize how important the default constructor is to the forms designer Smile | :)

James
"Java is free - and worth every penny." - Christian Graus

Re: Anyone wanna see

Nnamdi Onyeyiri2-Aug-02 7:34

Nnamdi Onyeyiri

2-Aug-02 7:34

i didnt see the point, why initiate the control, if you aint gonna use it?

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Re: Anyone wanna see

James T. Johnson2-Aug-02 14:29

James T. Johnson

2-Aug-02 14:29

You do use it, but you defer the setting of the various properties until a little bit later.

The "proper" way to create the control is to expose a Cards property which is a Collection of Card objects. The collection can then be modified at runtime and the control will update itself automatically.

An example of this set up is the ListView control; it exposes an Items collection which contains ListViewItems that represent the items in the control. This collection can be modified at runtime, or code can be output by the forms designer to add the items during the form's InitializeComponent() method.

At first this does not makes sense, but then there are added benefits to coding this way: The control is more flexible in that Cards can be added and removed at runtime; and it opens itself to be easier to use because it follows the standard set by the base controls.

James
"Java is free - and worth every penny." - Christian Graus

Re: Anyone wanna see

Nnamdi Onyeyiri2-Aug-02 23:07

Nnamdi Onyeyiri

2-Aug-02 23:07

I see what your saying, but the Cards array in the CardCtrl class needs to be sized correctly. So to add/remove cards at runtime, ive added an Add() and Remove() method.

Suspicious | :suss: Email: theeclypse@hotmail.com URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

Loaded Assemblies?

Johnny Zee1-Aug-02 8:09

Johnny Zee

1-Aug-02 8:09

Is there any way to figure out that specified assembly is loaded or not. What I am trying to do is I want to check if the assembly is already loaded or not. If not then load it if yes then use it from memory. I don't want to load the assembly all the time so just a check.

Thanks

Re: Loaded Assemblies?

leppie1-Aug-02 8:18

leppie

1-Aug-02 8:18

AppDomain.CurrentDomain.GetAssemblies() Smile | :)

MYrc : A .NET IRC client with C# Plugin Capabilities. See
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TCPClient and TCPListener

Michael P Butler1-Aug-02 5:12

Michael P Butler

1-Aug-02 5:12

How reliable and sturdy are the above classes?

Are they good enough to write a small server with upto 50 connections that will be passing a 40 character string to client machines over a LAN?

Any useful reading material for these and the base Socket classes? (beyond MSDN)

Michael Smile | :)

Time flies like an arrow. Fruit flies like a banana

Re: TCPClient and TCPListener

jparsons1-Aug-02 6:04

jparsons

1-Aug-02 6:04

The TCP* classes are sufficient for creating a simple client and server pair as you have described. However it would be best IMHO to use the Socket class and asynchronus IO. It's simple, fast and scalable. I've written a small article on the subject

http://www.prism.gatech.edu/~gte477n/languages/csharp/index.html

Jared
jparsons@jparsons.org
www.prism.gatech.edu/~gte477n

Write a struct to a file...

Daniel Strigl1-Aug-02 4:35

Daniel Strigl

1-Aug-02 4:35

How can I write a user defined struct (like the following struct) in binary form to a file?

<br />
[StructLayout(LayoutKind.Sequential)]   <br />
public struct BITMAPFILEHEADER <br />
{<br />
    public ushort bfType; <br />
    public uint   bfSize; <br />
    public ushort bfReserved1; <br />
    public ushort bfReserved2; <br />
    public uint   bfOffBits; <br />
}<br />

And how can I write the data of a memory block (the only thing I have is the the "IntPtr") in binary form to a file?

IntPtr p --> file

Thanks, Daniel.

Re: Write a struct to a file...

Andy Smith1-Aug-02 6:33

Andy Smith

1-Aug-02 6:33

you can use the BinaryFormatter class to serialize an object to a Stream.
This may or may not fit your needs.

Re: Write a struct to a file...

Nnamdi Onyeyiri1-Aug-02 8:05

Nnamdi Onyeyiri

1-Aug-02 8:05

using System.IO;

...

BITMAPFILEHEADER info = new BITMAPFILEHEADER();
info.bla = bla;

...

BinarySerializer bs = new BinarySerializer(typeof(BITMAPFILEHEADER));
Stream mystream = File.Create("SomeFile.ext");
bs.Serialize(mystream, info);
mystream.Close();

one question, what is the purpose of the attribute on your struct?

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"All programmers are playwrights and all computers are lousy actors."

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