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Do you have any examples?
/\ |_ E X E GG
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Due to the signing of a non-compete no. However, if you understand direct X then it is a trivial task. If you do not understand direct X then you are asking the wrong questions. First I would research writing your own custom control, it will cover the on paint override, then just pass the control's handle to direct X
A man said to the universe:
"Sir I exist!"
"However," replied the Universe, "The fact has not created in me A sense of obligation."
-- Stephen Crane
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I haven't tried it, but you might take a look at this article
modified 12-Sep-18 21:01pm.
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Thanks, that's just what I was looking for.
Actually now, I'm using a picturebox and direct 3d!
/\ |_ E X E GG
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excuse me
first thanks for help
i want to set the DataBindings property for datagrid by dataview
but it send me an exception here is the code i wrote
DataView custadd=new DataView(customer.Tables["address"],"","",DataViewRowState.CurrentRows );
custadd.AllowEdit=true;
custadd.AllowNew=true;
custadd.AllowDelete=true;
custadd.Table =customer.Tables["address"];
custadd.RowFilter="cust_ID='"+txid.Text+"'";
dataGrid1.DataBindings.Add("DataSource",custadd, );
the databindings takes three arguments but i do not know the 3 argument
thanks
MD_NADA
MD_NADA
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can some1 recomend me of a good tcp\ip socket server code\snifft ? (if it can get multiple connections it will be better)
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I liked this example a lot. It's an asynchronous TCP Server/Client.
http://codeguru.earthweb.net/csharp/csharp/cs_misc/sampleprograms/article.php/c7695/
http://codeguru.earthweb.net/csharp/csharp/cs_network/sockets/article.php/c8781/
Good Luck
-K
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Does anyone know how to overcome the DBNull.Value problem with databinding to a detached row?
When you bind to a detached row and any of the columns have a null value (DBNull.Value), an exception get's raised. It is impossible to use the DataBindings[idx].Format or DataBindings[idx].Parse to 'catch' the null value and change it, because you have to set the databinding before you can set the .Format and .Parse handlers, and the error gets thrown when you set the databinding.
... and no, I don't want to bind to a DataTable. I need to bind to a detached row.
Paul Brower
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I'm assuming by 'detached row' you mean a DataRow that is not in a DataTable. Is that correct?
Why do you need to bind to a detached row? Why not just bind to a DataView which filters in only that row? What about binding to the ItemArray of the row instead?
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Yes, 'detached' is not in the DataTable.
Binding to the itemarray would cause the same problems with the bindings.
Although I don't particularly like the solution, I have come up with one that works. Apparently the ability to have DBNull.Value passed to a databinding, and function properly, is tied to the DataSet level. If you have a detached row, going back up to the DataSet (row.DataTable.DataSet) will be null.
So, what I had to do, is create an Empty strongly typed dataset, and generate a new row from a table from this new dataset. I can then bind directly to the row (which is now NOT detached, but it is 'detached' from my main strongly typed dataset) and not have a problem with null column values.
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Paul Brower wrote: So, what I had to do, is create an Empty strongly typed dataset, and generate a new row from a table from this new dataset. I can then bind directly to the row (which is now NOT detached, but it is 'detached' from my main strongly typed dataset) and not have a problem with null column values.
Phew! Talk about building a street so that you can cross it!
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This may be a simple question, but I am writing a program that utilizes a pictureBox to show the currently selected picture. Below the pictureBox is a "Browse..." button that calls an openFileDialog. My question is, how to i get the picture selected to appear in the pictureBox. Or i guess a better question would be how to extract the path of the selected file from the openFileDialog so i can use it as I please.
Thanks in advance for any help.
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If you select a file in openFileDialog, you get the whole path and filename also. That means you can use :
this.pictureBox.Image = Image.FromFile(this.openFileDialog.Filename);
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Hey there,
Is there any way to (programatically) find out the hard disk size of a computer without using WMI?
My best idea is to recurse through all the directories (externally calling dir/p) and find out how much space is taken by each directory and then adding it to the free space.
But that is quite cumbersome.
Any ideas?
-K
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Actually, I like WMI a lot.
However, the application is required on an embedded system running Win XP Embedded that doesn't have WMI as a component. 
-K
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I would definately find a better solution than 'dir /p'  Maybe P/Invoke?
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can any one tell me about acelp encoding?
http://www.engineeringproject.net
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I googled "acelp encoding"[^], and found for an example: ACELP @ VoiceAge[^].
premium1 wrote: http://www.engineeringproject.net
I don't see how this side has anything to do with it?
---
b { font-weight: normal; }
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hey
I currently paint my form with the code:
protected override void OnPaint(PaintEventArgs e)<br />
{<br />
<br />
paintflag = !paintflag;<br />
Graphics dc = e.Graphics;<br />
<br />
drawableWidth = dc.ClipBounds.Width;<br />
drawableHeight = dc.ClipBounds.Height;<br />
... paint here
the problem is that when only part of the form needs to be redrawn the height is wrong and it all messes up. Is there any value I can get that specifies this inner height? I've tried this.clientsize.height but the value obtained is too large.
What can I do?
thank you
dave
-- modified at 13:01 Tuesday 1st August, 2006
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I've never done custom drawing but I think maybe PaintEventArgs.ClipRectangle contains the information you're looking for.?
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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hello to you all,
i'm really interested to start and use the visual studio .net 2005 with the lang' of C# for my real-time applications. all the goodies in the C# lang' can really make me work faster but i have to know if it support real-time constrains.
is there a way to meke RT apps with C#?
or the .net framework is not RT compadable?
i really love to hear a response to this important issue.
tnx in advance,
Eli
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C# supports multi-threading and runs fairly efficiently. The issue becomes your RT time contraint. Do you have to have a 15ms avg. response or a 15ms gauranteed response? A low average response can be achieved relatively easily with good code. However, the garbage collector will fire eventually blowing the service gaurantee if it is too low.
The only way to know for sure is to write a simple test case for your given scenario.
A man said to the universe:
"Sir I exist!"
"However," replied the Universe, "The fact has not created in me A sense of obligation."
-- Stephen Crane
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hi,
RT system must have gauranteed response. i can't compromise for less.
but is the GC is the only problem of C# with deal of RT?
do you (or anyone else) know of a way to controll the GC?
tnx very much for your response...
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The GC is the only thing specific to .NET that you need to worry about. The operating system, which you have no control as well, also dictates interrupts and schedules tasks based on thread priority. I would not design an RT system on a windows machine period unless I could accept a specific average and a large high time on response.
If you would give a better description of your RT system I would see if I can elaborate further if .NET can be applied, but no gaurantees.
A man said to the universe:
"Sir I exist!"
"However," replied the Universe, "The fact has not created in me A sense of obligation."
-- Stephen Crane
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