Adding Properties to a Custom Control - C# Discussion Boards

leppie22-Aug-04 4:01

leppie

22-Aug-04 4:01

Why does everyone have to do something un original. Go wild, do something unique (hell even patent the idea!) , if it doesnt work, you wont fail, the project was just not viable (been reading too much scott adams lately!), given you have valid reasons. I'm sure the examiner will find the read much more interesting!

^{top secret xacc-ide 0.0.1}

Re: Project ideas

s3mt3x22-Aug-04 4:06

s3mt3x

22-Aug-04 4:06

As far as I'm aware - the project is original - there are no real functional open source swf editors (excluding Swf Draw) which is very limited! Also I think he's after specifics - as opposed to "do something orginal". What do you have in mind?

Complexity is a simple concept.

Re: Project ideas

WillemM22-Aug-04 6:54

WillemM

22-Aug-04 6:54

Try building an application that is modular.
Build in such a way that you can add or remove modules to your application (.dll files) and increase or decrease the possibilities of your application that way. I have done that for my last years project and I got some extra points for having a great app that completely modular and easy to extend. Smile | :)

I build in some administrational stuff like:

- Addressbook
- Invoices
- Orders
- Bookkeeping

But you can put in other modules if you want Smile | :)

"Every rule in a world of bits and bytes can be bend or eventually be broken"

PLZ NEED SOME HELP IN PROJECT

jawaria21-Aug-04 20:30

jawaria

21-Aug-04 20:30

HI,
I HAVE DECIDED TO DEVELOP "NETWORK INVENTORY MANAGEMENT SOFTWARE" AS PROJECT BUT I AM NOT ABLE TO DECIDE ABT IT'S TOOLS.IS C# AN APPROPRIATE LANGUAGE TOOL FOR DEVELOPING IT AND PLZ CAN U GIVE SOME LINKS OR TIPS AS GUIDANCE IN THIS PROJECT ,I'LL BE VERY THANKFUL TO U.

Re: PLZ NEED SOME HELP IN PROJECT

leppie22-Aug-04 4:02

leppie

22-Aug-04 4:02

U R SHOUTTING BUTT NOT SAYUNG ANYTHING! Sigh | :sigh:

^{top secret xacc-ide 0.0.1}

Re: PLZ NEED SOME HELP IN PROJECT

Anonymous22-Aug-04 15:52

Anonymous

22-Aug-04 15:52

Nice demostration of the different formatting CP currently supports. Big Grin | :-D

Re: PLZ NEED SOME HELP IN PROJECT

WillemM22-Aug-04 6:56

WillemM

22-Aug-04 6:56

- Can you work with C#? If not, can you learn it easily?
- Do you have a language that you know well? If yes, choose that one over a language that you don't know.

That's all I can say about it Smile | :)

"Every rule in a world of bits and bytes can be bend or eventually be broken"

Adding Properties to a Custom Control

Jeff Monheiser21-Aug-04 15:27

Jeff Monheiser

21-Aug-04 15:27

Hello all,
I'm writing a custom control in which I would like to modify the properties shown on the property grid (within Visual Studio at design time) depending upon the value of a property within the property grid. For example, consider a class called animals. Within that class there is a property that has an enumeration allowing the user to chose between the options human or dog. If they choose human then I would like a property called arms to appear in the same property grid. However, if they chose dog, then that property would need to disappear.

I've added an event handler for the OnComponentChanged event within the ComponentDesigner class and I can determine what the value of the property animal is, but I can't figure out how to add/remove the desired properties from the grid. Can it be dome using the PreFilterProperties function? If so how do I get the IDictionary interface to pass to the function?

Thanks for your help.

Jeff Confused | :confused:

Re: Adding Properties to a Custom Control

Nick Parker21-Aug-04 20:21

Nick Parker

21-Aug-04 20:21

Take a look at the following example on MSDN: PreFilterProperties example[^]

- Nick Parker
My Blog | My Articles

problem

lonereck621-Aug-04 12:08

lonereck6

21-Aug-04 12:08

hi all.. i am new programmer almost,and i wana thank u all here guys for this great site and quick support,

the problem: i want make a program that press the keyboard
keys by its self after a period of time, Cry | :((

how can i do that using c#? and thanks for all.

Re: problem

Abel AA21-Aug-04 18:54

Abel AA

21-Aug-04 18:54

your problem(question) is open to multiple understandings Smile | :)

. However, I will assume that you are trying to intercept keyboard event(s) for your application.

If you are trying to intercept the keyboard event for a specific control/form,
you can use the OnKeyDown event

private void textBox1_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
Thread.Sleep(1000);
}

Otherwise, you might want to take a look at Windows Hooks.
Refer http://www.codeproject.com/csharp/GlobalSystemHook.asp

Re: problem

J.a.c.k21-Aug-04 22:11

J.a.c.k

21-Aug-04 22:11

Read documentation for SendKeys and Timer Classes.

Re: problem

Stefan Troschuetz21-Aug-04 22:22

Stefan Troschuetz

21-Aug-04 22:22

Use the SendKeys class to send keystrokes or keystroke combinations to the active application.

www.troschuetz.de

Using DirectX in Visual Studio Whitbey

Alex Leshinsky21-Aug-04 9:26

Alex Leshinsky

21-Aug-04 9:26

Hi, I am making a C# application that uses DirectX.
I did not have the DX SDK so i downloaded the "DirectX 9.0 SDK Update - (Summer 2004)"
However, intellisense (in Visual Studio Whitbey) still doesnt show the Microsoft.DirectX API.
What am I doing incorrectly?

thx

Re: Using DirectX in Visual Studio Whitbey

Anonymous22-Aug-04 2:02

Anonymous

22-Aug-04 2:02

Have you added a reference to the project?

Re: Using DirectX in Visual Studio Whitbey

WillemM22-Aug-04 6:59

WillemM

22-Aug-04 6:59

I tried building a Direct3D application with visual studio .net 2005. It works on my machine, be sure you have installed Managed DirectX and added a reference to the following assemblies:

- Microsoft.DirectX
- Microsoft.DirectX.Direct3D
- Microsoft.DirectX.Direct3DX

"Every rule in a world of bits and bytes can be bend or eventually be broken"

Re: Using DirectX in Visual Studio Whitbey

Alex Leshinsky22-Aug-04 9:31

Alex Leshinsky

22-Aug-04 9:31

Thanks for the help, i didnt know i had to add the references manualy.

DataGrid selection

J.a.c.k21-Aug-04 6:56

J.a.c.k

21-Aug-04 6:56

Is it possible to select full row in DataGrid instead of cells?

Re: DataGrid selection

DougW4821-Aug-04 7:04

DougW48

21-Aug-04 7:04

Click the row header

Re: DataGrid selection

J.a.c.k21-Aug-04 10:23

J.a.c.k

21-Aug-04 10:23

Question is incorrect, I don't want to select full row, I want to disable selecting of single cell,so user must always select full row. Is this possible?

Thanks for any help

Re: DataGrid selection

Jay Shankar22-Aug-04 19:44

Jay Shankar

22-Aug-04 19:44

Paste the below code in MouseUp. Will solve your purpose.

private void DataGrid1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{


	System.Drawing.Point pt = new Point(e.X, e.Y); 

	DataGrid.HitTestInfo hti = DataGrid1.HitTest(pt); 

	if ( e.Button ==MouseButtons.Left) // left button allowed only.
	{
		if(hti.Type == DataGrid.HitTestType.Cell) 

		{ 

			DataGrid1.CurrentCell = new DataGridCell(hti.Row, hti.Column); 

			DataGrid1.Select(hti.Row); 

		} 
	}

}

Do revert back whether it could solve your purpose or not.

Regards,

Jay.

Re: DataGrid selection

J.a.c.k23-Aug-04 3:38

J.a.c.k

23-Aug-04 3:38

Thanks alot this works, but now when I click on cell
program first selects whole text in cell,
and then selects full row.
I tryed putting all code in MouseDown, and
"DataGrid.Select(hti.Row)" in MouseUp,
this almost solved the issue but selection is stil visible.
Can I avoid this?

Regards,

J.a.c.k

Re: DataGrid selection

Jay Shankar23-Aug-04 15:55

Jay Shankar

23-Aug-04 15:55

Hi Jack,
I am sorry I could not get your response completely. Will you please ellaborate what do you mean by stating "this almost solved the issue but selection is stil visible.
Can I avoid this? "

Last time when I gave you the code. I had not checked whether it is working properly or not. Today I made a demo application to test the code. It works for me.

I am not sure but please check whether you have changed / modified some of the dataGrid properties like SelectionBackColor , SelectionForeColor etc..

Regards,

Jay.

Re: DataGrid selection

J.a.c.k24-Aug-04 1:04

J.a.c.k

24-Aug-04 1:04

Hi Jay,

My English is not very well but I'll try to explain:

Code works fine and it solved problem, but when I click somewhere in grid program selects text in that cell like before I entered your code and then it selects complete row (all selection colors are set). So selection doesn't look nice, I was wondering can this be avoided?

Thanks for your time.

Regards,

J.a.c.k

Re: DataGrid selection

Jay Shankar25-Aug-04 1:07

Jay Shankar

25-Aug-04 1:07

Hi Jack,
I got your problem.
This can be solved by p/invoking LockWindowUpdate.
In MouseDown you lock the window update and in MouseUp you need to unlock it.
Please revert back whether you could do as mentioned above.
Otherwise I will send you the code showing How to do it?

Regards,

Jay.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.