C# Discussion Boards - CodeProject

Re: Removing embedded newlines

Dan Neely26-Jul-05 2:38

Dan Neely

26-Jul-05 2:38

Woops, I knew that. :-/

Would've been nice if the compiler gave a warning though.

Form Resize

25-Jul-05 9:05

Hi everyone,

Is there an event like Form.Resize that is raised only after the user has finished resizing the form, i.e., when the mouse button is released at the end of the resize operation?

Thanks

Re: Form Resize

KaptinKrunch25-Jul-05 10:09

KaptinKrunch

25-Jul-05 10:09

I would imagine that it would be the Form_OnPaint() method.

Re: Form Resize

Yigal Agam25-Jul-05 10:15

Yigal Agam

25-Jul-05 10:15

But that not specific to resizing. The Paint event fires every time the form is being redrawn, for example when you move other applications over it. I'm looking for something that signals a resize, but that would fire AFTER, not WHILE the resize is taking place.

Thanks

Re: Form Resize

twoteesbrett25-Jul-05 10:21

twoteesbrett

25-Jul-05 10:21

I believe the short answer is no. Smile | :)

You can use the SizeChanged() event which fires AFTER every size change, but not after the mouse has been released. Normally you would want this to happen anyway so that you get the 'smooth' resize effect.

Using a combination of SizeChanged() and MouseUp() events won't work because the MouseUp() event isn't "Mousing-up" on the form. It is "Mousing-up" on the resize handle.

Unfortunately using OnPaint() won't work either.

Is there a specific reason why you need it after the mouse has been released?

Re: Form Resize

Yigal Agam25-Jul-05 10:26

Yigal Agam

25-Jul-05 10:26

Thanks. I'm not interested in the mouse release per se, I just want to refresh the form only once when the user drags the corner of the window, and not update it continuously while it's being resized, which causes flicker.
Thanks, maybe SizeChanged would work.

Re: Form Resize

twoteesbrett25-Jul-05 10:42

twoteesbrett

25-Jul-05 10:42

Flickering effects is a common problem to user controls. I'm not sure if this fits your situation (as I've only used it for controls), but it may help.

For user controls, setting Control.SetStyle to ControlStyles.DoubleBuffer and ControlStyles.AllPaintingInWmPaint will paint to an off-screen bitmap first. In your case you could try this.SetStyle.

I found this web site helpful:

http://pluralsight.com/wiki/default.aspx/Craig/FlickerFreeControlDrawing.html[^]

Re: Form Resize

Dan Neely25-Jul-05 11:13

Dan Neely

25-Jul-05 11:13

Even with double buffering, if one of your controls was sufficiently timeconsuming to redraw delaying redraw until the end of the resize would be useful. One untested idea about how to do that would be to have the SizeChanged event disable OnPaint and start a thread with a timer to reenable it after X time, with each call of SizeChanged resetting the timer.

button haldling in c#

iramg25-Jul-05 8:58

iramg

25-Jul-05 8:58

hello
i have a problem regarding button handling. if i want to click a button1 and want that a variable value is set to like 4 after that button i must have to click second button and another variable value is set to like 5 then when i click ok button a function will be called and pass these variable values to a function. how will i implement this problem and can i return a value form a button function if yes then how please tell through sample code or simple statements thanks

Re: button haldling in c#

LongRange.Shooter25-Jul-05 9:33

LongRange.Shooter

25-Jul-05 9:33

That's just elementary C# coding. Create a form. Add a set of buttons (1, 2, 3, etc.) Write a click handler event

private void ButtonClickHandler(object sender, EventArgs args)
{
  Button which = (Button) sender;
  input += which.Text;
}

In the property grid you switch over to the event view and assign this handler method to all of your buttons. You may want an Enter key on the form as well....that way people can enter more than a single digit to feed the function. So then you'd double click the Enter click event which will automatically create an event handler foryou and you can add the following code:

private void Enter_Click(object sender, EventArgs args)
{
   if (variableA == null) {variableA = input; input = string.Empty;}
   else {variableB = variableA; variableA = input;}
}

when you click the function button you just do

CallFunction(variableA, variableB)

Now if you cannot solve your problem with what I've given you, then I highly recommend you start taking developer classes. Smile | :)

There are 10 kinds of people in the world.

Those that read binary...

...and those who don't.

form size limits

RedTurtle25-Jul-05 8:34

RedTurtle

25-Jul-05 8:34

I am developing an app on a laptop, using VS and C# 2003. The app will run on a tablet PC in portrait mode.

How can I develop the app on my laptop for a 760X1024 orientation when VS won't allow it (the 1024 height setting always jumps down to 812). the tablet sdk 1.7 doesn't seem to have anything for this. Is there a workaround?

How to double-space a rich text box?

EGosnell25-Jul-05 8:14

EGosnell

25-Jul-05 8:14

I'm trying to do something that I thought was fairly simple, but I can't seem to figure it out.

I want a rich text box to be double-spaced. I've tried inserting rtf codes into the rtf of the rich text box, but nothing seems to happen. I've tried several different methods, such as:

rtbLyrics.Rtf = rtbLyrics.Rtf.ToString() + @" \sl0 \slmult1 ";

AND

rtbLyrics.Rtf = rtbLyrics.Rtf.Insert(rtbLyrics.Rtf.Length,@" \sl0 \slmult1 ");

AND

rtbLyrics.Rtf += @" \sl0 \slmult1 ";

but these don't have any effect.

How do I do this?

Encoding

Bahadir Cambel25-Jul-05 7:23

Bahadir Cambel

25-Jul-05 7:23

I am using HttpWebRequest and Response classes in order to query a third party database.
But the problem is , encoding is in ISO_8859 format and couldnt retrieve some characters ..as I looked so far in the method of streamReader class , only ASCII , utf 7-8 and a few more are available..But I want to encode streamReader with ISO-8859
So far I am using the following method.
sr = new StreamReader(resp.GetResponseStream(), System.Text.Encoding.UTF8);
..
How could I achieve this?
Any suggestions or piece of code will be welcomed Smile | :)

Thanks in advance.

Re: Encoding

mav.northwind25-Jul-05 11:31

mav.northwind

25-Jul-05 11:31

There's a static System.Text.Encoding.GetEncoding() method you can use to get a certain encoding with a given name.

Regards,
mav

Summary Application

kgoodrich25-Jul-05 7:14

kgoodrich

25-Jul-05 7:14

I am trying to write an application that I believe will be very intense and I don't know to accomplish the main task within this application. What I would like to have is an application in which I can load all of my banking and credit card information. I would then like be able to go to this application periodically and click an update button to update all of my account information(balance, minimum payment, available credit, etc). What kind of stuff do I have to use in order to accomplish this?????? What direction do I need to head???????

Thanks,
Kendal

Kendal Goodrich

Re: Summary Application

Not Active25-Jul-05 8:02

Not Active

25-Jul-05 8:02

I'd have to study your account info to answer this better. Go ahead and sent account numbers, passwords, etc. Poke tongue | ;-P

Re: Summary Application

Anonymous25-Jul-05 8:28

Anonymous

25-Jul-05 8:28

You need to head over to all of your banking web sites and see if they have API's or webservices you could use to do this (I seriously doubt it!) Other than that, you'll probably be relying on web page scraping.

Re: Summary Application

kgoodrich25-Jul-05 9:17

kgoodrich

25-Jul-05 9:17

I kind of figured that I would have to have web access to my accounts, which I do with most of them. I got this idea from wells fargo(my mortgage company). I go to the website to check my mortgage status and they have a "one look" page where I can enter information on my online accounts(bank accounts, credit cards, etc). Credit Card example: First I select from a long list of Creditors, I enter information such as my account number, online login, password, etc. I can then get a view of my balances on all entered account from my wells fargo one look page. I can also press a refresh button on the web page and have all my information updated with recent balances. I was kind of hoping I could design an application that could do basically the same thing, but pull a little bit more of my information to display. I would like to know how wells fargo is going about accomplishing what they do. Can anyone give me some insight on how I may accomplish this??????

Kendal Goodrich

Re: Summary Application

LongRange.Shooter25-Jul-05 9:39

LongRange.Shooter

25-Jul-05 9:39

Wells Fargo has the advantage of being a banking institute. They have access to the various interchanges, stand-in processors, etc. that allow them to request the balance information from any institution. Basically what they are doing on the web site is faking an ATM balance inquiry based on the account information you provide.

There are 10 kinds of people in the world.

Those that read binary...

...and those who don't.

DataGrid validation

zaboboa25-Jul-05 6:17

zaboboa

25-Jul-05 6:17

Hello,

Is there a way of validating that only an integer values could be entered
into a cell for a particular column in datagrid.

Thank you

Re: DataGrid validation

Not Active25-Jul-05 6:28

Not Active

25-Jul-05 6:28

There is always a way. What is the context, Windows app, Web page???

Re: DataGrid validation

zaboboa25-Jul-05 8:22

zaboboa

25-Jul-05 8:22

Thank you,
But I already figured it out. It's a Windows App

However there is a bigger problem.
In my datagrid, upon loading I have a few rows, also I have an even
which fires on Leave and TextChange:

//Initialize EventHandler for each of the Cells in the Grid<br />
foreach( DataGridTextBoxColumn dataGridTextBoxColumn in this.styleLotYields.GridColumnStyles ) {<br />
		      dataGridTextBoxColumn.TextBox.TextChanged += new EventHandler(this.GridTextBoxTextChanged);<br />
		      dataGridTextBoxColumn.TextBox.Leave += new EventHandler(this.GridTextBoxLeave);<br />
		   }

But when the app is running and by modifying the grid it adds another row, which is good, the Leave and Change text does not see the value entered in the textbox, although the Row and Column indexes are correct for a particular cell. I just don't know what's going on. Any ideas?

Thank you

Re: DataGrid validation

Alomgir Miah25-Jul-05 8:50

Alomgir Miah

25-Jul-05 8:50

Call this Function in the TextChanged Event before validating the data

private void EndEditOperation()
{
if (this.currentGridRow >= 0)
{
CurrencyManager currencyManager = (CurrencyManager) this.dataGridAllocation.BindingContext[this.dataTable];
if (currencyManager != null)
{
currencyManager.Position = this.currentGridRow;
DataGridColumnStyle dataGridColumnStyle = this.dataGridAllocation.TableStyles[0].GridColumnStyles[0];
this.dataGridAllocation.EndEdit(dataGridColumnStyle, this.currentGridRow, false);
}
}
}

Live Life King Size
Alomgir Miah

something like image list!

Sabry190525-Jul-05 6:11

Sabry1905

25-Jul-05 6:11

is there any control in .NET like image list but it can store files from any type, not only image format ?
thx all Smile | :)

Re: something like image list!

Anonymous25-Jul-05 8:26

Anonymous

25-Jul-05 8:26

I don't know of one. It wouldn't be hard to write on though.

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