Re: DataGrid with Check Boxes - C# Discussion Boards

outlook context menu Error and PREVIEW PANE Problem

22-Aug-06 3:41

Hello

I posted you an article link in the previous reply. did you read it?

Here it is again:

http://www.codeproject.com/csharp/FileDownloadManager.asp[^]

Regards Rose | [Rose]

K ^edar V20-Aug-06 19:44

K ^edar V

20-Aug-06 19:44

How to add context menu in OUTLOOK "Preview Pane" ?
I mean IN the area where the subject, from ,to etc has been displayed..

"You can do any thing you set to your mind" - theGhost_k8

Re: outlook context menu Error and PREVIEW PANE Problem

Nader Elshehabi21-Aug-06 2:07

Re: outlook context menu Error and PREVIEW PANE Problem

21-Aug-06 2:07

Hello

I've never worked with it before, but doesn't it have a Right click event?? If it has you can handle the event and check the MousePosition property relative to your control's location.

Regards Rose | [Rose]

K ^edar V21-Aug-06 2:15

K ^edar V

21-Aug-06 2:15

well thats the problem... no such event as far as my knowledge is concerned..
well i think u have not understood the question .. Preview Panel ... do u know na?

"You can do any thing you set to your mind" - theGhost_k8

Re: outlook context menu Error and PREVIEW PANE Problem

Nader Elshehabi21-Aug-06 3:03

DataGrid with Check Boxes

21-Aug-06 3:03

Sorry!! Never used it before.

Regards Rose | [Rose]

Pinnapureddy20-Aug-06 19:39

Pinnapureddy

20-Aug-06 19:39

Hi,

I need help from anyone.
I have a datagrid, in that one column (Check boxes) is created by using item template.
I have two buttons beside to datgrid.one is up and another is down.
now my task is, after selecting a record in the grid, If click on the up button record should be moved up, if I click on down button record should be moved down.For the first record up button shoud not work. For the last record doen button should not work.

Please send me the code.
Thanks in advance.

Re: DataGrid with Check Boxes

Nader Elshehabi21-Aug-06 1:57

Re: DataGrid with Check Boxes

21-Aug-06 1:57

Hello

Pinnapureddy wrote:
Please send me the code.

It's not approperiate to ask for how the answer is posted this way. Maybe you declare that code snippets are preferable, but almost no one will post you "The code"!!

Now, to your issue. There many approaches to solve it. One is to make a column at the begining of the grid. You may cal it "Order". Now make that column invisible and store the order you want the columns to appear with in these cells. Sort the Grid according to that column.

When the user clicks up, swap the order value of the selected row with the one above and resort. When the user clicks down vice versa.

Before changing the values, check if order = 0, or order = MaxValue. If so, return without doing anything.

Regards Rose | [Rose]

Pinnapureddy21-Aug-06 21:44

Pinnapureddy

21-Aug-06 21:44

hi,

Thank you for your reply.

Crystal Reports and filling dataset/datatable

Glen Harvy20-Aug-06 19:14

Glen Harvy

20-Aug-06 19:14

Hi,

using VS2005;

I have successfully setup Crystal Reports but only if I create a new oledbconnection using the Crystal Reports Database selector.

When I select a table in the Database Selector from an available Project Data -> ADO.Net DataSets -> dataset -> table I can chose the columns etc BUT when I run the program the report only shows the column names and not the actual data.

I presume I need to load the data into the reportviewer but I can't figure out how and nor can I find any help here or on the net.

Glen Harvy

startup times woes....

Super Lloyd20-Aug-06 14:10

Super Lloyd

20-Aug-06 14:10

Hi All!

I try to understand and improve my application cold start.

I already load as little as possible in the Main().

Now I have a test which gives strange results, and I try to understand what it means.

test 1:
====
I reboot, launch a small .NET executable, which takes 7 seconds, and launch my application, which takes 30 seconds.

test 2:
====
I reboot, launch my application, which takes 70 seconds.

Now this doesn't add-up, why?
Any idea what's going on?

I'm thinking to write a small "QuickStart" application which "initialize" everything. How should it work?

S. Senthil Kumar20-Aug-06 19:04

S. Senthil Kumar

20-Aug-06 19:04

Super Lloyd wrote:

Now this doesn't add-up, why?

That's probably because most of the .NET framework runtime code was loaded in the cache when you launched the first .NET application. That still doesn't explain the 40 second drop though.

OTOH, 70 seconds to launch an application OMG | :OMG:

? What does your application do to take such a long time to startup?

Regards
Senthil [MVP - Visual C#]
_____________________________
My Blog | My Articles | My Flickr | WinMacro

Super Lloyd20-Aug-06 19:22

Super Lloyd

20-Aug-06 19:22

Warm startup is only about 2 seconds...
So ... I don't know ...
I don't do much!

V.20-Aug-06 22:40

20-Aug-06 22:40

70 seconds !! OMG | :OMG:

.

Anyway, I had the same problem with loading times.
What I did notice is that I performed a little bit too much tests, which seem to take a lot of time. (try/catch blocks, etc) That can help maybe (although it is important that the app doesn't crash.)

The only thing I did then, is suspend the layouts until after loading and loading as little as possible. Add an NGen compilation and that's about it, about what you can do in my knowledge.

What I also did is setting the thread priority to above normal. I figured that Higher priority processes get more processor time and thus run more quickly, but I should take care with this method...

On what cpu do you run the application?
I'm thinking that (especially .NET 2.0) needs a lot of memory to run quickly.

I've found a living worth working for, but I haven't found work worth living for.

<marquee> Beer | [beer]

Super Lloyd20-Aug-06 23:57

Super Lloyd

20-Aug-06 23:57

uh.. intel something IIRC. 32 bits, .NET2, 1GB of RAM.
IT tooks a long while to load "simple classes" (well the most complicated does refer to a lot of other types but NOT that many!)

I suspect that one of my problem is an auto-generated ManagedC++ wrapper around some ObjectiveC API. The top level object class has a few hundreds methods! and each class is very big and there are quite a few object!

But the fact is, I just use a few of them...

implementing a C++ interface (from a DLL) in C#

V.21-Aug-06 0:03

21-Aug-06 0:03

You could try measuring the TimeSpans...
Then you can see what actually takes so much time...

I've found a living worth working for, but I haven't found work worth living for.

<marquee> Beer | [beer]

_Liron_20-Aug-06 11:39

_Liron_

20-Aug-06 11:39

I have a DLL written in C++ (VS6) that has some interfaces in it.

I want to implement these interfaces in C#.

how do I create a class in C# that derives from a class in C++ that is in a DLL ?

Re: implementing a C++ interface (from a DLL) in C#

Christian Graus20-Aug-06 12:02

Christian Graus

20-Aug-06 12:02

How do you mean, interfaces ? C++ does not support interfaces in the C# sense.

You NEED to derive from the class directly, not just reuse the same method names ? Then you need to rewrite the class using C++/CLI ( that is, VC++ 2005 ). VS6 is not going to give you any joy here - you can call VC6 COM objects in C#, but you're going to see an interface only, no classes you could hope to derive from.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog

InvalidComObjectException was unhandled

thunderbirdje20-Aug-06 10:51

thunderbirdje

20-Aug-06 10:51

VS2005 Express Edition:

I made a little class with an ManagementEventWatcher object (called myManagementEventWatcher) inside as an private member.

All works fine till I close my application (which uses my little class) and I receive an System.Runtime.InteropServices.InvalidComObjectException. The exception helper says:

COM object that has been separated from its underlying RCW cannot be used.

May be It's cause is that I placed myManagementEventWatcher.Stop() in the destructor of mij little class? But honeslty I don't really know wherelse te place that line of code?

Can someone help me please? Or give me some advice?

Thanks a lot!

Nader Elshehabi20-Aug-06 11:07

20-Aug-06 11:07

Hello

thunderbirdje wrote:
May be It's cause is that I placed myManagementEventWatcher.Stop() in the destructor of mij little class?

In C# there are no destructors. Instead there is a method called Dispose(). Put your Stop() in the If(Disposing) statement of the dispose() method. This should work!

Regards Rose | [Rose]

thunderbirdje20-Aug-06 12:57

thunderbirdje

20-Aug-06 12:57

If I'm thinking right. I should inherit from the class IDisposible and call the method Dispose() explicit?

Everything works fine now, but I am wondering. Is there maybe an other way instead of calling the Dispose() method explicit from the event Form1_FormClosing?

I'd love to learn more Wink | ;-)

Thanks for the answer, Nader Elshehabi!

Nader Elshehabi20-Aug-06 13:36

20-Aug-06 13:36

Hello

thunderbirdje wrote:
I should inherit from the class IDisposible

IDisposable is not a class. It's an interface and you implement it, not inherit from it.

Your form already implements this interface for you, you only have to implement it in classes you write from the scratch. I understood from your post that the ManagementEventWatcher object is in your form. If so just double click on the class file name "*.cs" in your solution explorer to expand it. Then right click on "FormName.Designer.Cs" and view its code. Here you will find you Dispose() method. You don't call it explicitly.

If you still can't find it. View your class using the class explorer, select it, then right click on the Dispose() method name in the members pane, and view the declaration.

Regards Rose | [Rose]