Re: convert from Single to Decimal - C# Discussion Boards

Re: Drag and drop between my program and explorer

DaveyM6911-Jun-08 3:39

11-Jun-08 3:39

What error(s) are you getting under Vista?
I bet it's something to do with permissions - you may have to add an application manifest file and alter the requested execution level.

Dave

convert from Single to Decimal

George_George11-Jun-08 2:15

George_George

11-Jun-08 2:15

Hello everyone,

I think convert from Single or Double to Decimal is always fine since Decimal has broader precision and broader range. Why it is mentioned,

"Conversions from Single or Double to Decimal throw an OverflowException if the result of the conversion is not representable as a Decimal."

http://msdn.microsoft.com/en-us/library/system.decimal(VS.80).aspx

thanks in advance,
George

Re: convert from Single to Decimal

leppie11-Jun-08 2:38

leppie

11-Jun-08 2:38

George_George wrote:
I think convert from Single or Double to Decimal is always fine since Decimal has broader precision and broader range.

floating point types will always have a bigger range, but not precision.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

Re: convert from Single to Decimal

George_George11-Jun-08 2:44

George_George

11-Jun-08 2:44

Float type has bigger range than Decimal?

regards,
George

Re: convert from Single to Decimal

Guffa11-Jun-08 2:54

Guffa

11-Jun-08 2:54

George_George wrote:
Float type has bigger range than Decimal?

Yes.

Single (float) has a range of -3.402823e38 to +3.402823e38.
Decimal has a range of -79,228,162,514,264,337,593,543,950,335 to +79,228,162,514,264,337,593,543,950,335.

So, the value 8e29 can be stored in a float but not in a Decimal.

Despite everything, the person most likely to be fooling you next is yourself.

Re: convert from Single to Decimal

George_George11-Jun-08 3:26

George_George

11-Jun-08 3:26

Thanks Guffa!

Question answered.

regards,
George

Re: convert from Single to Decimal

Eslam Afifi11-Jun-08 2:44

Eslam Afifi

11-Jun-08 2:44

I think this is because Single and Double are floating point numerical representation. They have value INF (infinity) and NaN (not a number) which cannot be converted to Decimal.
http://en.wikipedia.org/wiki/Floating_point#Dealing_with_exceptional_cases

Eslam Afifi

Re: convert from Single to Decimal

George_George11-Jun-08 2:47

George_George

11-Jun-08 2:47

Hi Eslam,

From the link, it is not mentioned explicitly Nan can not be converted to Decimal. If I missed anything, could you point out please? Smile | :)

regards,
George

Re: convert from Single to Decimal

User 665811-Jun-08 2:54

User 6658

11-Jun-08 2:54

Can't you just try it out for yourself?

float f = float.NaN;
Decimal d = Convert.ToDecimal(f);

yields a OverflowException

modified 12-Sep-18 21:01pm.

Re: convert from Single to Decimal

George_George11-Jun-08 3:24

George_George

11-Jun-08 3:24

My mistake, Greeeg! Float has less precision, but broader range. Smile | :)

regards,
George

Re: convert from Single to Decimal

Eslam Afifi11-Jun-08 3:00

Eslam Afifi

11-Jun-08 3:00

How would you represent INF or NaN as a Decimal? And as leppie said, floating point types cover a wider range than Decimal.
Double.MaxValue = 1.79769313486232E+308
Single.MaxValue = 3.402823E+38
Decimal.MaxValue = 79228162514264337593543950335

Eslam Afifi

Re: convert from Single to Decimal

George_George11-Jun-08 3:25

George_George

11-Jun-08 3:25

My mistake, Eslam! Float has less precision, but broader range.

regards,
George

Re: convert from Single to Decimal

Eslam Afifi11-Jun-08 3:50

Eslam Afifi

11-Jun-08 3:50

Eslam Afifi

Re: convert from Single to Decimal

George_George11-Jun-08 15:59

George_George

11-Jun-08 15:59

Thanks Eslam,

Question answered.

regards,
George

CollectionEditor Owner/Parent form

Gareth H11-Jun-08 2:15

Gareth H

11-Jun-08 2:15

I am trying to get the owner/parent form of my CollectionEditor. I have tried looking in:

CreateCollectionForm()

And checking the return values properties such as Owner/Parent, but they are set to null.

Does anyone know how to do this?, and if its not possible via the CollectionEditor, how would i do this via P/Invoke as i am guessing this would be possible...

Regards,
Gareth.

(FKA gareth111)

Interact with Java Applet using C#.net

Vanitha Sivakumar11-Jun-08 1:54

Vanitha Sivakumar

11-Jun-08 1:54

Hello,
I want to interact with the website which is having Java Applet using C#.net or VB or VBA. That is send the command to Java Applet Application and after that copy the data from Java Applet Application.

Please suggest me about it.

Thanks in Advance,
Vanitha

Re: Interact with Java Applet using C#.net

Abhijit Jana11-Jun-08 2:09

Abhijit Jana

11-Jun-08 2:09

Check out my article. hope this is you want.

JAVA.NET [^]

Best Regards
-----------------
Abhijit Jana
Check Out My Latest Article

Java.NET : Integration of Java and .NET[^]
"Success is Journey it's not a destination"

extracting file from a path

shriya_1711-Jun-08 1:41

shriya_17

11-Jun-08 1:41

hi!
there is a path of log files present in system, lets say "E\Perl Logs\EDD\ex080318.log".
there will be two user entry by the user "Month" and "Year" , lets say "02" and"08".
I must get all the log files present by this date. log file present itself been names as 02 and 08 as i have shown in the path above.
Wht i have done, i have stored this path in a variable by the name "filename" .Right now i am getting all the files present in the folder.
any logic tht can be helpful to carry out this work
thnx
Shriya

Re: extracting file from a path

Vasudevan Deepak Kumar11-Jun-08 1:47

Vasudevan Deepak Kumar

11-Jun-08 1:47

DirectoryInfo.GetFiles should have an overload which takes a pattern also right?

http://msdn.microsoft.com/en-us/library/system.io.directoryinfo.getfiles.aspx[^]

Vasudevan Deepak Kumar
Personal Homepage
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extracting file from a path

shriya_1711-Jun-08 1:54

shriya_17

11-Jun-08 1:54

Thnx for reply, but i wanted little more explanation, if u culd. coz i have taken out the files. wht culd be the best logic so that i can take out the files based on two parameters that is month and year. as of now i m getting all files. i m not geeting , from where to start
"2" and "8" respectively

Re: extracting file from a path

User 665811-Jun-08 2:23

User 6658

11-Jun-08 2:23

You could use a regular expression to extract the year, month and day of the logfile using this regex:

[^\d]+(?<year>\d\d)(?<month>\d\d)(?<day>\d\d)\.log

regards

modified 12-Sep-18 21:01pm.

Re: extracting file from a path

shriya_1711-Jun-08 3:32

shriya_17

11-Jun-08 3:32

Thnx for the help

Custom Windows Controls

Gktony11-Jun-08 1:20

Gktony

11-Jun-08 1:20

Hi all,

I am developing some custom windows controls and I want every control to be resized when used on the windows form. For example if there is a text box the user can extend the length by just extendeing the legnth of the control. I cannot do this succesfully at then moment I have tried to set AutoSize to true and the AutoSizeMode to GrowAndShrink but it doesn't work.

Do you have any examples?

Thanks in Advance

Tony

Here is my code for the control

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;

namespace UserControls.UIControls
{
public partial class LabelledText : UserControl
{
public delegate void EventHandler(Object sender, EventArgs e);
public event EventHandler onGetFocus;
public event EventHandler onLostFocus;

public LabelledText()
{
InitializeComponent();
}

public string LabelText
{
get
{
return lbl.Text;
}
set
{
lbl.Text = value;
}
}
public ContentAlignment LabelAlign
{
get
{
return lbl.TextAlign;
}
set
{
lbl.TextAlign = value;
}
}
public string TextBoxText
{
get
{
return txt.Text;
}
set
{
txt.Text = value;
}
}
public HorizontalAlignment TextBoxAlign
{
get
{
return txt.TextAlign;
}
set
{
txt.TextAlign = value;
}
}
private void LabelledText_Load(object sender, EventArgs e)
{
txt.BackColor = System.Drawing.SystemColors.Control;
}

private void txt_Leave(object sender, EventArgs e)
{
txt.BackColor = System.Drawing.SystemColors.Control;
}

private void txt_Enter(object sender, EventArgs e)
{
txt.BackColor = System.Drawing.Color.White;
}
}
}

Re: Custom Windows Controls

Abhijit Jana11-Jun-08 1:49

Abhijit Jana

11-Jun-08 1:49

Hi Tony,
Just Use Following Code in you Control.

 private void UserControl1_Load(object sender, EventArgs e)<br />
        {<br />
            textBox1.Width = this.Width;<br />
        }<br />
<br />
       <br />
        private void UserControl1_Resize(object sender, EventArgs e)<br />
        {<br />
            textBox1.Width = this.Width; <br />
        }

Note : Change Control Name According to your control

Let me know when done !!!

Thanks

Best Regards
-----------------
Abhijit Jana
Check Out My Latest Article

Java.NET : Integration of Java and .NET[^]
"Success is Journey it's not a destination"

Re: Custom Windows Controls

Gktony11-Jun-08 2:57

Gktony

11-Jun-08 2:57

Thanks Abhijit that works fine.

However I have a label on the left of the textbox which I want the user to extend it. Also I want the label to get extended automatically when typing long text into it. For example if the text on the label is long like 'International Accounts:' the label should be extended to the size of the text in order to display the whole text.

Thanks in advance

Tony

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