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I'm trying to write OLE in-place activation server app in C#. Basically, what I want is that a user should be able to do Insert -> Object... in Microsoft Word and select my object there.
Has anybody done this? What interfaces do I need to implement? A non-C#/.NET-specific how-to will also do.
Thanks,
Nikhil
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Hi!
How can I create a program that works just like a normal Windows Service for Windows CE (Pocket PC)?
I need the program to autostart when the operating system loads, and to do its work without making the user aware of it.
thanks!
/spAAwn
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Hi. I need to iterate through every file in directory.
Geting files first into array with Directory.GetFiles() is too slow. How can I manualy iterate through files?
Thx
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Go to this site:
http://www.libertyassociates.com/pages/Books.htm[^]
and download the source code for Programming C# 3rd edition (near the bottom of the page)
Ex 21-02 "Exploring files and subdirectories" in the Chapter 21 folder is a good example to study. And in general there's lots of useful examples in the book. (The 4th edition book covers C# 2.0.)
Kevin
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Hey guys,
I think about to add a checkbox to the standard openfiledialog, but I didn't find a way to do that. Do anybody know if it's possible to "customize" the openfiledialog? And how?
Ralf
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Make a class that inheriets the OpenFileDialog and add your checkbox and extra logic there...
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!
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This could be possible if OpenFileDialog wasn't sealed.
There are some tutorials to add extra fields to the dialog but can't find them right now.
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Thanks,
but I think it's not possible to inherit because it's a sealed class.
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Hi,
Say i have a class User with some public properties
-FirstName
-LastName
-Email
I then load an ArrayList (arrUsers) with User objects and set a DataGrid's datasource = arrUsers.
The grid will create three columns (FirstName,LastName,Email) and fill them with data.
What i really wonder is if there's a way to control which properties in the User object the datagid will use.
Maybe an attribute or implementing an interface. Setting the properties to private isnt good enough nor is creating the datagrid's columns with a datafield.
Niclas Ahlqvist
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Is there a place on the web that cna show some samples or give ideas of different types of user interfaces?
Thanks
Tom Wright
tawright915@yahoo.com
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DesigningInterfaces.com[^]. While the page itself is somewhat of an advertisement for the book, the site contains many free UI examples and patterns applicable to both desktop and web apps (see the links on the left of the page).
Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Lent Revisited
The apostle Paul, modernly speaking: Epistles of Paul
Judah Himango
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I tried two ways of obtaining drive letters, one using Directory.GetDriveNames() and the other using ManagementObjectCollection. In both cases, my app checked the A drive and sometimes also D drive. This caused that terrible noise from diskette drive or/and a "no media in drive" dialog appeared every time the application is launched.
I can just skip the problematic "A" and "D" drives, but this is a dirty solution, because not all users have A,C,D drive letters.
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I would have to disagree....a little on that.
Most computers come with a floppy, a harddrive, and a CD-ROM. If so they will always be A, C, D respectively. While you can purchase some computers without a floppy or a CD-ROM, almost 90% of the time you will not. Why? How else will you install the OS is need be without removing the harddrive?
Tom Wright
tawright915@yahoo.com
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Floppies are becoming sparse on newer machines, many oems are including an X-in-1 card reader instead. A bootable CD will install the OS without need for a floppy. Enough are also putting recovery data on a 2nd partition instead of, or in addition to a floppy that even on oem boxes assuming D for the CD is chancy. Self build machines often have multiple HDs as well, my personal machine has cd drives at H and I due to partition based data segragation and multiple harddrives.
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I agree that floppies are going out the window. With the flash drive being the choice portable data transport.
However CD-ROMs will be around for quite a while and since I never said that all machine have them, there are the select few who do not order them with their machines. Heck I even had a PC that had no floppy, harddrive, or CD-ROM. It had a boot ROM on the network card and booted from a boot file on the network. That was back awhile. No sure if they still do that.
Tom Wright
tawright915@yahoo.com
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Tom Wright wrote: However CD-ROMs will be around for quite a while and since I never said that all machine have them, there are the select few who do not order them with their machines. Heck I even had a PC that had no floppy, harddrive, or CD-ROM. It had a boot ROM on the network card and booted from a boot file on the network. That was back awhile. No sure if they still do that.
True. My point was that you can't just assume the CD drive is D:.
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if nothing else try this:
<br />
try <br />
{<br />
string[] drives = System.IO.Directory.GetLogicalDrives();<br />
<br />
foreach (string str in drives) <br />
{<br />
System.Console.WriteLine(str);<br />
}<br />
}<br />
catch (System.IO.IOException) <br />
{<br />
System.Console.WriteLine("An I/O error occurs.");<br />
}<br />
catch (System.Security.SecurityException) <br />
{<br />
System.Console.WriteLine("The caller does not have the " +<br />
"required permission.");<br />
}<br />
Tom Wright
tawright915@yahoo.com
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Check the type of the drive. If it's a removable drive you should skip it.
---
b { font-weight: normal; }
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Yes, but I can't check the type of drive without obtaining the collection of drives:
ManagementObjectSearcher query = new ManagementObjectSearcher("SELECT * From Win32_LogicalDisk ");
ManagementObjectCollection queryCollection = query.Get();
after query.Get() on the second line, the A drive is checked even when there is no diskette.
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You can always use this:
static public void Main(string[] args)<br />
{<br />
<br />
for (char driveLetter = 'A'; driveLetter <= 'Z'; driveLetter++)<br />
{<br />
DriveInfo drive = new DriveInfo(driveLetter.ToString());<br />
switch (drive.DriveType)<br />
{<br />
case DriveType.NoRootDirectory:<br />
break;<br />
default:<br />
Console.WriteLine("Found drive at " + drive + " of type " + drive.DriveType);<br />
break;<br />
}<br />
}<br />
}<br />
It will only make the annoying noise when you access the properties of the drive instance.
bool ready = drive.IsReady;
Like that.
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This works on .NET 2.0, but I have to solve the problem on .NET 1.1 
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I wan to know the code for physical address(d:\songs) to a vitual address(\\172.13.23.987\songs) convertion in C#.
hiii
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Is this virual address the IP address of the machine? How the virtual address is determined affects the answer to your question.
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yes if i am in a system called \\hls-pc002 and store a wave file in d drive (which is shared)
hiii
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Get the IP address of the local machine:
using System.Net;
...
IPAddress address = Dns.GetHostEntry(Dns.GetHostName()).AddressList[0];
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