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Re: dialog access problem

Dan Neely27-Jul-05 5:28

Dan Neely

27-Jul-05 5:28

That's an solution I hadn't thought of. It wouldn't be a problem now, but context sensitive help is in the features wishlist so it could become an issue in the future.

DataGrid event

zaboboa26-Jul-05 3:08

zaboboa

26-Jul-05 3:08

Hello,

In my data grid, when you edit the new added row (added automatically), if some of the fields are not completed, and user clicks on the rows that were loaded from dataview, last row automatically disapears.
I wanted to know, if there is an event that is fired on this action, becuase I have to recalculate the quantity column to display a proper sum from the cells.

Thank you

Re: DataGrid event

rudy.net26-Jul-05 6:10

rudy.net

26-Jul-05 6:10

If you are using a dataview that means your view is filtered so any new row that you add should match the columns that are being filtered.
For example, if filter is for column named "Totals" and your filter is set for "Totals > 100" then if the "Totals" column of your new row is < 100 then it won't be visible.

Re: DataGrid event

zaboboa26-Jul-05 6:38

zaboboa

26-Jul-05 6:38

My filter is set for the column RevenueID, but since it's a primary KEY I am not displaying it in the table. So, I have 4 columns visible out of 6 columns that are in the table.
Could that couse the problem? If yes, how can I manually set the the ramaining columns?

Thank you.

Re: DataGrid event

rudy.net26-Jul-05 8:18

rudy.net

26-Jul-05 8:18

That is definitely the reason, so when a new row is added, you have to update column RevenueID in your dataview.
To repair, add a ListChanged event handler to your dataview.
Following is a code snipped of the event handler:

<br />
private void dataview_ListChanged(object sender, ListChangedEventArgs e)<br />
{<br />
	if (e.ListChangedType == ListChangedType.ItemAdded )<br />
	{<br />
		DataView dv = (DataView) sender;<br />
		DataRowView drv = (DataRowView) dv[e.NewIndex];<br />
		if (drv.IsNew)<br />
			drv["RevenueID"] = newRevenueId<br />
	}<br />
}<br />

Re: DataGrid event

zaboboa27-Jul-05 2:22

zaboboa

27-Jul-05 2:22

The event handler does not match the delegate.

dataview.ListChanged += new EventHandler(this.dataview_ListChanged);

Apparently the delegate is (object sender, EventArgs e);

Re: DataGrid event

zaboboa27-Jul-05 2:25

zaboboa

27-Jul-05 2:25

Thanks, I found the solution.

Algorithm question

Rassul Yunussov26-Jul-05 1:40

Rassul Yunussov

26-Jul-05 1:40

I want to have an array of colors from blue to red - like a rainbow... How to fill in this array programmatically???

Re: Algorithm question

Corinna John26-Jul-05 2:09

Corinna John

26-Jul-05 2:09

Start with blue (0/0/255) into first loop. Every turn adds a little green, and when green is 255, subtracts a little blue, until you reach pure green (0/255/0). Then begin a second loop, that adds red and subtracts green, until there is clear red.

Start
000/000/255 (blue)
000/010/255
000/020/255
000/030/255
...
000/255/255 (cyan)
000/255/240
000/255/230
000/255/220
...
000/255/000 (green)
010/255/000
020/255/000
030/255/000
...
255/255/000 (yellow)
255/240/000
255/230/000
255/220/000
...
255/000/000 (red)

As you can see, there are four loops like that:

<br />
for(int green=0; green<256; green++){<br />
colors.Add(new Color( 0, green, 255 ));<br />
}<br />
<br />
for(int blue=255; blue>-1; blue--){<br />
colors.Add(new Color( 0, 255, blue ));<br />
}<br />

DISCLAIMER: This response in not tested, it's simple guesswork.

_________________________________
Please inform me about my English mistakes, as I'm still trying to learn your language!

Create Class library in C# without ........

emc226-Jul-05 0:52

emc2

26-Jul-05 0:52

I built a console application however, I don't want to recreate this project as a class library. Can anyone show me ow to build as a dll using the the configuration properties?

Re: Create Class library in C# without ........

S. Senthil Kumar26-Jul-05 3:37

S. Senthil Kumar

26-Jul-05 3:37

Just change the Output Type (Right click on project in Solution Explorer, click Properties) to Class Library.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: Create Class library in C# without ........

Anonymous26-Jul-05 4:54

Anonymous

26-Jul-05 4:54

The attributes under configuration properties/build/Outputs are output paths,XML documentation file, Generate Debuggin info, Register for com interop........There's no option for changing to a class library.

Re: Create Class library in C# without ........

Anonymous26-Jul-05 4:55

Anonymous

26-Jul-05 4:55

ty, I've seen it.

.net remoting with webForms clients which have to react of an event fired by the server

ben234526-Jul-05 0:15

ben2345

26-Jul-05 0:15

I have a big question for .Net Remoting pros:

I use a remote server which watch files and detect when modifications become. The server is a winForm. Then, I have Web clients which subscribe to the event "file modification" and have to do some work when the event fired.
- The remote configuration is ok because if I declare a simple function in the interface (link between server and clients), clients have access to this function and it work well.
- The problem is when the event fired, clients don't execute the code I put in the corresponding method in the WebForm. When I execute with the debug mode, I see that it enter well in the method and execute the code I put into but nothing happens. For exemple, I just test with displaying a message in a textbox when the event fired.
The webClients enter well in the receiveevent function, execute the corresponding code line, but there is nothing in the textbox.

I understood this is because it's the IIS which calls and react at the event and not the html page, the clients. In fact, if I tranform my web clients in WinForm clients, it works well: the code is really executed.

But I don't know what I have to do and I'm very tired and my brain too. Because I have searched on the Web for a week, 8 hours per day and I didn't find anything. There are all .Net remoting solution except this case: Web clients which subscribe to event fired by a server application. There are Web clients which communicate with a server but without event or WinForm clients with event.
So I really need some help, please... I will be very grateful about your help. Tell me if there are information lacks in my explication.

EM_GETLINE Parmeter propblem....

chettu25-Jul-05 23:52

chettu

25-Jul-05 23:52

Hi I am trying to use the EM_GETLINE message to get the text of a particular line but i am not able to send the last parameter i.e the lpram..for the SendMessage function... anyone plz let me know how to do this... i am doin in the following way

char[] buffer = new char[255];<br />
buffer[0] = (char)255;<br />
           Message msg = Message.Create(this.Handle, EM_GETLINE, (IntPtr)Index, (IntPtr)buffer[0]);<br />
           base.DefWndProc(ref msg);<br />
           return msg.Result.ToInt32();<br />

but it gives me a error like.. "Attempted to read write protected memory. This is often indication that other memory is corrupt." F1! F1!

cheers
Chettu

MDI Status Bar

noneformenoneforme25-Jul-05 22:50

noneformenoneforme

25-Jul-05 22:50

I have an MDI application and I want to show/post messages from the child forms. How can I do this? Any examples?

Re: MDI Status Bar

Atul Kharecha26-Jul-05 2:25

Atul Kharecha

26-Jul-05 2:25

make form & statusbar public
create object of mdi form
access statusbar's object using mdi form's object
access the properties of status bar like

objMDI.objStatus.Panels[0].Text="message";

thats all,

Atul

Re: MDI Status Bar

Dave Kreskowiak26-Jul-05 5:09

Dave Kreskowiak

26-Jul-05 5:09

What on earth are you smoking?

You don't have to creat an object of anything... See my reply to the OP.

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

Re: MDI Status Bar

Dave Kreskowiak26-Jul-05 5:12

Dave Kreskowiak

26-Jul-05 5:12

Easy. Make a public method on your parent MDI Form and call it from your children...

// Form1
public void StatusMessage(String message)
{
    // set your status bar message here.
}

// Child Form 1
this.MDIParent.StatusMessage(@"My status message goes here...");

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

vscrollbar problem

nidhelp25-Jul-05 20:16

nidhelp

25-Jul-05 20:16

Hi,

im stuck here. right now i've a long form with groupboxes in it. when i run and display my app, the form is longer than the height of my window screen. i would like to shorten my form to be shorter than that of window screen. i want to add a vscrollbar in the form so that i can shorten the form and still be able to scroll through all my groupboxes. i've no idea how to reduce the size of my form and yet be able to scroll through all the groupboxes.

also, how do i create a link (say when i click on a button in form 1, it will display form 2).. im not sure whether u call that linking or is there a term for this kind of action?

pls help anyone..

thz.. appreciate your help.. =)

Re: vscrollbar problem

Atul Kharecha26-Jul-05 2:45

Atul Kharecha

26-Jul-05 2:45

u can use tab strip control or
just use panels, this will show scrollbar as u want.

atul

Re: vscrollbar problem

rudy.net26-Jul-05 6:14

rudy.net

26-Jul-05 6:14

On your Form set the property "AutoScroll" to True.

Switching to Code-Behind Style.

SilverStag25-Jul-05 20:05

SilverStag

25-Jul-05 20:05

Hi!

I have this herculian task of converting an asp.net web application written in classic asp style(Application Logic and Presentation in one .aspx file) to Code-Behind and UI style.

Any tips or strategies with regard to this dirty job are welcome Sniff | :^)

Best Wishes

Re: Switching to Code-Behind Style.

Dave Kreskowiak26-Jul-05 5:07

Dave Kreskowiak

26-Jul-05 5:07

You might want to ask this in the ASP.NET Forum.

But in my humble opinion - scrap it and rewrite the thing from scratch.

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

how to classify an image into sub images and store in separate space in C#

gogajee25-Jul-05 19:27

gogajee

25-Jul-05 19:27

actually, I want to get the mean values of the intensity in each sub and then to get the global value,
so, first I need to classify an image into subimages, and want to store each sub image in separate memory space, and
anybody, knows

thanks!

shakeel
Image Processing & Multimedia Lab.
computer Engi. dept.
pknu. korea

Last Visit: 31-Dec-99 18:00 Last Update: 4-May-24 8:05

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