C# Discussion Boards - CodeProject

Heath Stewart11-Nov-04 6:37

11-Nov-04 6:37

It may. Like I mentioned, you should read the VB documentation for the Word object model (the best place is in the Word help itself if you installed the developer documentation; the documentation - if you can find it - in the MSDN Library isn't very specific (and like I implied, hard to find the right docs)).

If the COM server (Word) is throwing an error, though, something isn't right. Based on your code it seems similar to a NullReferenceException in .NET, except that your proxy object isn't null but the associativity of it may be empty in the Word COM server. That's why the Range object came to mind first.

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Software Design Engineer
Developer Division Sustained Engineering
Microsoft

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Re: C# windows service using Word

Nick Ingratta11-Nov-04 7:57

Nick Ingratta

11-Nov-04 7:57

I printed out the stack trace it looks like this

at Word.Range.set_Text(String prop)
at com.vmi.CardioIMS.Document.WordClass.SignDocument(String docName, String docLocation, String physId, String physName)

Nicholas Ingratta
ningratt@hotmail.com

Re: C# windows service using Word

Heath Stewart11-Nov-04 8:09

Heath Stewart

11-Nov-04 8:09

What is this: com.vmi.CardioIMS.Document.WordClass.SignDocument ? If you use the official Primary Interop Assemblies for Word 10 (XP) from MSDN[^] you would not see this. This looks like some third-party solution (perhaps part of your solution).

Using official PIAs from the COM server publisher is always a good idea and, when installed (i.e., for Office XP PIAs run the batch file to register them correctly), get used any time you would normally create your own. These are tested and, sometimes, may even be custom RCWs.

Office 2003 will be compatible in most cases with the XP typelib (where your RCW comes from) but do install their own PIAs if you choose ".NET Framework Developer Support" as a feature. Generally, using older typelibs for properly implemented COM servers (like Office) will support newer implementations unless older interfaces have been deprecated (happens rarely in Office; the basic stuff has almost always been around).

This posting is provided "AS IS" with no warranties, and confers no rights.

Software Design Engineer
Developer Division Sustained Engineering
Microsoft

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Re: C# windows service using Word

Nick Ingratta11-Nov-04 8:14

Nick Ingratta

11-Nov-04 8:14

com.vmi.CardioIMS.Document.WordClass.SignDocument is just a class that uses the Micrsoft Word 10.0 object library to open up word and add a paragraph.

I am just frustrated since this code was working before. You do not need to use the Interop Assemblies. Plus the code I am partially using is from a Microsoft web site.

Nicholas Ingratta
ningratt@hotmail.com

Re: C# windows service using Word

Heath Stewart11-Nov-04 8:24

Heath Stewart

11-Nov-04 8:24

Yes, you do need to use Interop assemblies. That is what you're doing. .NET is not a COM client and requies a wrapper. you can write your own RCWs, but they're required nonetheless. The PIAs I'm talking about are from Microsoft and tested. The interop assemblies you created when you referenced the Word 10 library in Add References (VS creates them automatically; just expand your References under your project) are probably the same but, unless you set up your signing key in the project under VS, are not signed (meaning that stricter code access policies may block the interop assemblies from being loaded).

Again, it's only a recommendation to use PIAs. Either way you're using interop assemblies.

This posting is provided "AS IS" with no warranties, and confers no rights.

Software Design Engineer
Developer Division Sustained Engineering
Microsoft

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Re: C# windows service using Word

leppie11-Nov-04 0:13

leppie

11-Nov-04 0:13

Yeah, I'm stuck with a similar issue Frown | :(

The only way to interact with desktop is either using localsystem, or user, but user doesnt allow interactive startup either it appears.

Found this on MSDN:

ServiceType Enum

The creation of interactive services is not supported. To workaround this, you can create a non-interactive service and a separate control GUI application that communicates with the service using sockets or remoting. For code samples on remoting, see Remoting Examples.

So it seems you will still need some form of extra application... Cry | :((

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Download xacc-ide 0.0.3 now!
See some screenshots}

Re: C# windows service using Word

Heath Stewart11-Nov-04 6:34

Heath Stewart

11-Nov-04 6:34

Impersonating an interactive user account (or anything but SYSTEM) disables "Allow service to interact with desktop") because it's already assumed that the user is an interactive user (to be an interactive user, they must have the SE_INTERACTIVE_LOGON_NAME right).

This posting is provided "AS IS" with no warranties, and confers no rights.

Software Design Engineer
Developer Division Sustained Engineering
Microsoft

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CLR access policy for a C# control

fridtjof10-Nov-04 8:04

fridtjof

10-Nov-04 8:04

Hi,

i'm a .NET newbie and hope someone can help me. I try to build something like an applet (Java) with C# and .NET. I've been told this can be done by a windows forms control assembly embedded in a html page via the well known <object> tag. Indeed, everything works fine except the control's database access to a local database. Here i get the exception "SQLClientPermission denied". I'm sure the problem lies in the CLR access policies for the code of the embedded control (coming from the intranet zone). Can anyone tell me how to grant this SQLClientPermission to the code of my control?

Thanks for your help,
Fridtjof

Re: CLR access policy for a C# control

Judah Gabriel Himango10-Nov-04 8:22

Judah Gabriel Himango

10-Nov-04 8:22

Control Panel->Administrative Tools->Microsoft .NET Framework 1.1 Wizards->Trust an Assembly

Any remotely useful information on my blog will be removed immediately.

There are 10 kinds of people in the world. Those who have heard of the ubiquitous, overused, worn-out-like-an-old-shoe binary "joke" and those who haven't.
Judah Himango

Re: CLR access policy for a C# control

Nick Parker10-Nov-04 8:23

Nick Parker

10-Nov-04 8:23

I would suggest you check into Code Access Security[^] (part of the .NET Framework Developer's Guide). Using the .NET Framework 1.1 snap-in for the Microsoft Management Console, you can evaluate what permissions apply to a particular assembly under the "Runtime Security Policy" and then selecting "Evaluate Assembly". Within the security policy section you are able to make many other changes as well as adjusting the security zone and increasing the level of trust for a particular assembly. This should get you started.

- Nick Parker
My Blog | My Articles

Dynamic user controls

HectorB10-Nov-04 7:46

HectorB

10-Nov-04 7:46

Hello.
I have a web C# project with a form with 3 buttons and 3
placeholders, each placeholder contains a Web User Control,
when I click over button 1 it shows the data of WUC1, when
I click over button 2 it shows the data of WUC2 and when I
click over button 3 it shows the data of WUC3. My solution
was to make initially invisible the 3 placeholders and when
a button is clicked then I made visible the corresponding
placeholder, as the following code from button 1 shows:

this.PlaceHolder1.Visible = true;
this.PlaceHolder2.Visible = false;
this.PlaceHolder3.Visible = false;

This works well, but I think it's not too eficient to have
loaded the 3 WUCs, so I'm trying to make a dynamic load of
each WUC depending the button clicked, example of button 1:

private void btn1_Click(object sender,
System.EventArgs e){
this.PlaceHolder1.Controls.Clear();
this.PlaceHolder2.Controls.Clear();
this.PlaceHolder3.Controls.Clear();
this.PlaceHolder1.Controls.Add(LoadControl("WUC1.ascx"));
//Only load the WUC1
}

This code load well the WUCs, show the data, but it can't
execute the events of the WUCs, because in each WUC I have
buttons that perform some operations and this events don't
execute, i put a breakpoint and show that the page_load of
the page that contains the WUCs, I think it's a problem of
dynamic load of controls, any idea would be appreciated.
Thanks a lot.

Re: Dynamic user controls

Nick Parker10-Nov-04 8:10

Nick Parker

10-Nov-04 8:10

This question belongs in the ASP.NET forum[^].

- Nick Parker
My Blog | My Articles

destroy dll

ppp00110-Nov-04 7:15

ppp001

10-Nov-04 7:15

Hi all,

After I loaded a dll component(c#)and use it in the program,
how can I destroy it(remove it from memory) in C# ?

Thanks

Re: destroy dll

Nick Parker10-Nov-04 7:28

Nick Parker

10-Nov-04 7:28

You will need to load the assembly into another AppDomain[^] and then use the static method AppDomain.Unload to remove it when you are done.

- Nick Parker
My Blog | My Articles

Conditional Attributes

Kevin McFarlane10-Nov-04 5:27

Kevin McFarlane

10-Nov-04 5:27

I have this code in a C# class library

        [Conditional("DBC_CHECK_ALL")]<br />
        public static void Assert(bool assertion)<br />
        {<br />
            ExceptionAssert(assertion);<br />
            TraceAssert(assertion);<br />
        }<br />
        <br />
        [Conditional("DBC_USE_EXCEPTIONS")]<br />
        static void ExceptionAssert(bool assertion)<br />
        {<br />
            if (!assertion)	throw new AssertionException("Assertion failed.");<br />
        }<br />
<br />
        [Conditional("DBC_USE_ASSERTIONS")]<br />
        static void TraceAssert(bool assertion)<br />
        {<br />
            Trace.Assert(assertion, "Assertion failed.");<br />
        }

which is attempting to implement Anding of attributes as per this topic

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/csref/html/vclrfconditional.asp[^]

However, when I define either or both of DBC_USE_EXCEPTIONS or DBC_USE_ASSERTIONS in a Console app. that uses the library neither ExceptionAssert nor TraceAssert gets called.

Note: when all this is done within a single console app. it works OK.

Kevin

Monitor Problem

waiwai0910-Nov-04 3:18

waiwai09

10-Nov-04 3:18

In .NET Compact Framework, System.Threading.Monitor.Wait(Object obj) and
System.Threading.Monitor.Pulse(Object obj) are not available. Does anyone know to use these functions or replace by other functions in .NET Compact Framework? Really Thanks a lot!!!!!

Pathfinding (path or no path) in 3D

Sebastian Schneider10-Nov-04 3:04

Sebastian Schneider

10-Nov-04 3:04

Hi everybody,

now for something completely different Wink | ;)

I just read an article on pathfinding here on CP(http://www.codeproject.com/csharp/CSharpPathfind.asp) but it did not really get me started as I am too dumb to convert this to 3D Wink | ;)

MY PROBLEM:

I have to write a program which checks if there is a path through a threedimensional cube, which consists of smaller cubes (scubes)

The cube dimensions are fixed (20x20x20 scubes) and each scube may be filled or void.

The is one variable, p, which determines the probability of a scube being filled (p) or being a void (1-p). This does not change as we iterate through the scubes on startup.

I have this cube ready to go and should now determine if there is a path from the top side to the bottom side.

Movement Rule: No Diagonal Moves, only along the three axis.

I smell recursion here, but I can't figure out how to do this Smile | :)

If I had some Lego(tm) here, I might have BUILT a cube and found a solution, but right now all I have is one sheet of paper and a pencil.

Can anyone get me back on track?

Cheers
Sid

Find and replace in text file

sevan10-Nov-04 2:12

sevan

10-Nov-04 2:12

find string Expire and change the first two lines after Expire to Code project
example

Expire
12345
23423 cool

To
Expire
Code project
Code project

thx

Re: Find and replace in text file

Dave Kreskowiak10-Nov-04 3:27

Dave Kreskowiak

10-Nov-04 3:27

So, what's the qustion? And, no, we're not going to write the code for you. If you're having a problem with the logic or some code issue, we can help with that. But don't expect anyone to write the whole thing for you.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Re: Find and replace in text file

tom_dx10-Nov-04 12:39

tom_dx

10-Nov-04 12:39

I recommend looking up, 'String'

IM PROUD TO BE A GMAIL;

Re: Find and replace in text file

Dave Kreskowiak10-Nov-04 13:37

Dave Kreskowiak

10-Nov-04 13:37

I recommend telling the person who originally posted the question, not me...

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Re: Find and replace in text file

Kraki11-Nov-04 9:06

Kraki

11-Nov-04 9:06

I would suggest looking at the System.Text.RegularExpression namespace and use a regular expression to do the replacement.

Is there a way to prevent InitializeComponent() regeneration?

DizzyMobile10-Nov-04 1:26

DizzyMobile

10-Nov-04 1:26

Hi! I’m working on a simple Windows.Forms database project. It would be nice for me to work with DataGrid (set properties & behavior of its elements) mostly via designer. Before setting DataSource & DataMember of the DataGrid I need to fill relative dataset with data. For that purpose I call myDataAdapter.Fill method.
The question is: Where can I paste myDataAdapter.Fill method to get filled DataGrid in the designer?
I’ve tried to put fill method in InitializeComponent, but designer recreates this section every time I change any property with it. Putting fill method somewhere in myForm constructor takes no effect on the designer. So maybe there is an attribute saying [no recreate] to mark constant section of designer region?
Thanks!

Dizzy

Re: Is there a way to prevent InitializeComponent() regeneration?

Skynyrd10-Nov-04 5:26

Skynyrd

10-Nov-04 5:26

I might be wrong but I'm practically sure u can't make a DataGrid's databinding "active" in design time.

Re: Is there a way to prevent InitializeComponent() regeneration?

J4amieC10-Nov-04 5:34

J4amieC

10-Nov-04 5:34

As long as the dataset exists and the datagrid's datasource property is set, filling the dataset in the c.tor has always worked for me... maybe paste some code (including your initializecomponent method) and it would be easier to see your problemo.

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