Docking a Windows Form - C# Discussion Boards

How Do I: Set the installed Path in the Registry from a setup project?

7-Jun-04 3:32

A clone is a copy of the original, so how can you "hook it back up" to the original? As I said before, just merge the DataSet you get back with the one you have in memory using DataSet.Merge.

Microsoft MVP, Visual C#
My Articles

Tony Archer1-Jun-04 15:39

Tony Archer

1-Jun-04 15:39

I have written a PowerPoint Add-In and am working on the install package.

I created the setup project and am trying to set a registry entry to the location that the application is installed (whatever that may be).

I must do this to have access to the install directory as with COM add-ins all the application path properties in the Framework return *OFFICE's* application path, not my add-in's.

So in the registry part of the setup I have set several static values but also want to set one that is dynamic based on the install location.

Anyone know how to do this?

--Tony Archer
"I can build it good, fast and cheap. Pick any two."

Re: How Do I: Set the installed Path in the Registry from a setup project?

Heath Stewart2-Jun-04 3:12

2-Jun-04 3:12

First of all, if these add-ins are .NET assemblies, you can always get their path using Assembly.GetExecutingAssembly().Location, among a few similar ways.

To set the path in the install, though, set the registry value to [INSTALLDIR] (more than likely, if all your assemblies go into the same installation directory). There are much better ways but the VS.NET Windows Installer project doesn't make them possible without using a tool like Orca (from the Windows Installer SDK) and modifying the MSI package after it's compiled, which also requires some knowledge about MSI packages.

Microsoft MVP, Visual C#
My Articles

Private/Public

Wackatronic1-Jun-04 14:12

Wackatronic

1-Jun-04 14:12

I was wondering if you could have a public structure with private/public objects within it? Like in this example

<br />
public struct ClientData<br />
{<br />
    public Socket clientSocket;<br />
    public Thread clientThread;<br />
    private int clientMonitorID;<br />
}

or if you define it as public does object within become public

Yes, I program in VB6, but only because I use it to fill my addiction to having a dry place to sleep and food to eat!

Re: Private/Public

Edbert P1-Jun-04 17:34

Edbert P

1-Jun-04 17:34

Yes you can have a public structure with private and public objects in it.
The private objects will not be accessible from outside the struct, this can be used if for example you want to pass a value to the constructor of the struct and use it internally (do not want other objects to access it).

public struct ClientData
{
     private int clientMonitorID;
     public ClientData(int clientMonitorID)
     {
       this.clientMonitorID = clientMonitorID;
     }

     public int FunctionX()
     {
        FunctionX = clientMonitorID + 1
     }     
}

Edbert P.
Sydney, Australia.

Re: Private/Public

Heath Stewart2-Jun-04 3:09

Re: Docking a Windows Form

2-Jun-04 3:09

Yes, as Elbert said, it is possible. I wanted to add that, like classes, you should actually declare public properties that reflect private fields in your structure. This not only gives you a chance to validate input (always a good idea) but also to invoke delegates if necessary since properties are just getter and/or setter methods. You can still do it with fields, but it's quite a bit more difficult.

Microsoft MVP, Visual C#
My Articles

Docking a Windows Form

MeterMan1-Jun-04 13:43

MeterMan

1-Jun-04 13:43

I was wondering. Is there an easy way to dock a windows form? i have a scroller that I would like to place at the top or bottom of my desktop. I want it to dock so all the other windows resize to accomidate it. I know you can dock buttons inside the form with the dock property. I tried this.dock = DockStyle.Top; but it seems to have no effect on the windows form. Any suggestions would be great.

Win32newb
"Programming is like sex, make one mistake and you have to support it for a long time"

Heath Stewart2-Jun-04 3:06

Fastest way to convert from/to byte array

2-Jun-04 3:06

The best way is to create an AppBar - just like the Windows Task Bar and the old Office Shortcut Bar. See the article C# does Shell, Part 3[^] here on CodeProject.

Microsoft MVP, Visual C#
My Articles

Werdna1-Jun-04 13:43

Werdna

1-Jun-04 13:43

I need to convert various datatypes (mostly doubles, bytes and strings) to byte array and then read it back. I need to read it the fastest way possible and it will be read thousands of times and written only once.
What I use now is BinaryReader/Writer like so:
MemoryStream stream = new MemoryStream()
BinaryWriter writer = new BinaryWriter(stream)
.. loop ..
writer.write(byte)
writer.write(double)
writer.write(string)
...
return stream.ToArray();

I don't care how fast writing is.

Then I need to read the data:
byte[] data = ...
MemoryStream stream = new MemoryStream(data);
BinaryReader reader = new BinaryReader(stream);
while (stream.Position < stream.Length)
{
byte b = reader.ReadByte();
switch (b)
{
// depending on value of b read strings, doubles or bytes
}

}

This approach doesn't seem to be too fast. I'm wondering if there is a faster way to do that.
Thanks.

Re: Fastest way to convert from/to byte array

Heath Stewart2-Jun-04 3:04

Passing managed object through clipboard

2-Jun-04 3:04

See the BitConverter class documentation in the .NET Framework SDK.

Microsoft MVP, Visual C#
My Articles

rkvs1-Jun-04 10:35

rkvs

1-Jun-04 10:35

Dear forum members,

An object of a managed class (written in C#) is passed to the
clipboard during drag&drop operation. The object has to be
dropped on to a MFC view (written in VC++ .Net).
How do I create/access my object from the COleDataObject
which I get while 'Droping' into a view ?

Is there any other way to do this ?
[Hope I have explained my problem well ...]

Thanks in advance.
svkr.

Re: Passing managed object through clipboard

Heath Stewart1-Jun-04 11:16

1-Jun-04 11:16

This gets into marshaling. You can't just send a managed object through the clipboard (unless you exposed it as a CCW, or COM-Callable Wrapper) and used the interface re-declared (with the necessary GUID, or IID) in unmanaged code. The easiest way is to marshal the object so that it has a well-known representation, whether thats the fields packed into a byte[] array or whatever. You can also use the Marshal class to assist with this.

Those are really the only two ways to do this and marshaling would probably be the best way since it doesn't rely on COM and exposing your object (and all child objects that you must access) as CCWs.

Marshaling also means you can drag and drop your managed object to something that doesn't provide COM programming but instead abstracts drag and drop and provides you the data. With a well-known structure, you can marshal the data back to a representative object. One example would be a scripting language like JScript or VBScript. While you could expose your object as a automation-compatible (i.e., IDispatch implementation) CCW, this requires some knowledge of automation types and automation itself.

Microsoft MVP, Visual C#
My Articles

Re: Remoting with Events

Wouter Van Ranst1-Jun-04 10:20

Wouter Van Ranst

1-Jun-04 10:20

In the first post i changed my initials from WVR into my name (Wouter Van Ranst), wich is the possible cause for the site-system for not recognising me as the signed-in user...

Custom Control

rags1-Jun-04 9:33

1-Jun-04 9:33

I want to develop custom DataGrid control to trap enter key and make it work like tab key within DataGrid web control using C#. Any help is greatly appreciated.
Thanks Confused | :confused:

Heath Stewart1-Jun-04 9:57

1-Jun-04 9:57

This has been covered before in this forum. A quick search[^] would've turned up a few previous posts.

You don't need to develop a custom DataGrid. In fact, the DataGrid has nothing to do with it. It's the DataGridTextBoxColumn whose behavior must be changed. You must handle the TextBox's key events and send a TAB instead of ENTER. This can lead to problems with committing the changes in the TextBox to the underlying data source as well. See the search results for details.

Microsoft MVP, Visual C#
My Articles

rags1-Jun-04 10:41

1-Jun-04 10:41

I'm adding other customization to it also. But you are assuming that the grid is going to have only text box, what about combo box? Do you have any sample article or code

Heath Stewart1-Jun-04 11:05

1-Jun-04 11:05

Again, this has little to do with the DataGrid itself. What you need is derivatives of the DataGridColumnStyle, which means you must explicitly add DataGridTableStyles to the DataGrid.TableStyles collection property (see the documentation for more information). You can define table styles for multiple tables only once. The table style that matches up to a particular table (or typed array) will be used according to the DataGridTableStyle.MappingName property documentation in the .NET Framework SDK.

If you want a combo box, there is plenty of examples that have been discussed in this forum and are available both on this site and elsewhere on the Internet. There is a pretty good example on MSDN[^]. Just search.

Microsoft MVP, Visual C#
My Articles

rags1-Jun-04 11:15

1-Jun-04 11:15

Well after searching in so many places, I decided to ask the in discussion board. Anyway can you point to any article or sample which specifically shows how to make enter key work as tab key within Datagrid web control? I don't want any reference here and there
Thanks,

Heath Stewart1-Jun-04 11:18

1-Jun-04 11:18

Why don't you try the ASP.NET[^] forum, where this should've been posted in the first place, then.

The [Enter] key is handled by the browser and you can't override like you can with Windows Forms. HTML is not a rich environment and using custom field styles works much differently.

Besides, I'm not just going to hand over the answer. This is to help you learn. If you want code samples you can rip off without learning anything, try open source sites with full source code like http://www.sourceforge.net[^] or http://www.gotdotnet.com[^].

Microsoft MVP, Visual C#
My Articles

Wackatronic1-Jun-04 9:57

Wackatronic

1-Jun-04 9:57

Why not use the keypress event and then change the ascii code from [enter] to [tab]? Pretty sure this will work.

[edit] Heath and I must have grabbed this at the same time. But Heath was a little more in depth than I.

I won't dignify your question with an answer.
Yes, I program in VB6, but only because I'm addicted to eating!

rags1-Jun-04 10:43

Re: LZW compression using C#

1-Jun-04 10:43

Is there a keypress event for datagrid web controls column template?

LZW compression using C#

Bettie1-Jun-04 9:08

Bettie

1-Jun-04 9:08

Is anyone know how or where I can get information about LZW compression
using C#?

Thank You

bettie

Heath Stewart1-Jun-04 9:11