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Hello,
I'm new to C#.NET programming and I have little knowledge on C++. I'm trying to write a project which will convert a decimal number to hex and hex to decimal. I tried "Convert.ToInt" but couldn't get the result.
If anyone would help me about this problem, I would be appreciate it very much.
Thanks!
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This should work:
string ToHex(int number)
{
return number.ToString("X");
}
int FromHex(string number)
{
return int.Parse(number,
System.Globalization.NumberStyles.HexNumber);
}
"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer
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Anyone know of one?
cheers,
Chris Maunder
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I've got one that I wrote a while ago using straight C++ so I was thinking of porting either it or Tidy - but was hoping someone else had done the legwork before me.
cheers,
Chris Maunder
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Chris Lovett posted a C# SGML reader to GotDotNet a while back:
http://www.gotdotnet.com/userarea/keywordsrch.aspx?keyword=SgmlReader[^]
"SgmlReader is an XmlReader API over any SGML document. A command line utility is also provided which outputs the well formed XML result. HTML is an SGML grammar, so you can use this tool to convert HTML into well-formed XML."
"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer
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Nope, but have considered writting one.
Fear not my insanity, fear the mind it protects.
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Hi All,
I am working on a C# based Windows application.Using the following code
to
create an Excel object.
Excel.Application ExcelObj = new Excel.Application();
Its workin fine for me, the problem is that i want to destroy this
object
when i exit form my method.
I am not able to delete this object.
Calling GC.Collect() Or MArshal.ReleaseComObject() waz not of any help.
Pls help.
Regards
Vitesh
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private Excel.ApplicationClass m_objExcel = null;
private Excel.Workbooks m_objBooks = null;
private Excel._Workbook m_objBook = null;
private Excel._Worksheet m_objSheet = null;
private Excel.Range m_objRange = null;
private object oMissing = System.Reflection.Missing.Value;
try
{
FileInfo inf = new FileInfo(excelFileName);
m_objExcel = new Excel.ApplicationClass();
m_objExcel.Visible = false;
m_objBooks = m_objExcel.Workbooks;
m_objBook = m_objBooks.Open(inf.FullName, oMissing, oMissing,
oMissing, oMissing, oMissing, oMissing, oMissing, oMissing,
oMissing, oMissing, oMissing, oMissing, oMissing, oMissing);
m_objSheet = (Excel._Worksheet)m_objBook.Sheets[2];
string transformFileName = string.Format(@"{0}\{1}.cvt",inf.DirectoryName,inf.Name);
m_objSheet.SaveAs(transformFileName,Excel.XlFileFormat.xlTextWindows,oMissing,oMissing,oMissing,false,false,oMissing,oMissing,oMissing);
activeFile = new FileInfo(transformFileName);
}
catch(Exception ex)
{
throw ex;
}
finally
{
if( m_objBook != null)
{
m_objBook.Close(false, oMissing, oMissing);
System.Runtime.InteropServices.Marshal.ReleaseComObject (m_objBook);
m_objBook = null;
System.Runtime.InteropServices.Marshal.ReleaseComObject (m_objBooks);
m_objBooks = null;
m_objExcel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject (m_objExcel);
m_objExcel = null;
}
}
ed
Regulation is the substitution of error for chance.
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Hi , ive asked this before , but does ANYONE know how to make a borderless window behave like a tooltip?
meaning , it should not steal focus from the app that shows it (grayout the apps caption)
i need to be able to place controls on the 'tooltip' but they dont need to be able to hold focus , just as long as i can click them and the click events work...
currently im doing some nasty wndproc hack , scanning for the wm_ncactivate message , and setting focus back to the parent window... but this causes the parents caption to redraw , so there is some minor flicker (but still annoying)
any idea?
//Roger
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If you're using Windows 2000 or higher, you can override the CreateParams property, and add WS_EX_NOACTIVATE to the ExStyle property:
class TooltipForm : Form
{
...
protected const int WS_EX_NOACTIVATE = 0x08000000;
protected override CreateParams CreateParams
{
get
{
CreateParams cp = base.CreateParams;
cp.ExStyle |= WS_EX_NOACTIVATE;
return cp;
}
}
}
"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer
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hmmm.. it dont seem to work ...
using win2k and c# , setting the window to "Topmost=true"
it still steal focus..
//Roger
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Excuse-me for my stupid question, In WebForm, I would like to create a button that allow to open html page.(link with parameter ex: qsdf.asp?Text=tete) in the same browser (and other browser). How can I do that?
-=zoltx=-
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In your event handler for your Button you can Response.Write your javascript code to load a new window and change the location of your current browser. This gives you a dynamic effect.
js references
window.open, href.location
example:
public void OnClickButton1(object sender, EventArgs e){<br />
Response.Write("<javascript>window.open("www.codeproject.com");</javascript> );<br />
<br />
}
Note: code was written from memory, it is meant only for a guide
R.Bischoff | C++
.NET, Kommst du mit?
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Sorry I tested and you code don't work, I modify your in this manner Response.Write("<javascript>window.open(\"www.codeproject.com\"); ")");
but it is not enough..
-=zoltx=-
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how to do the same with C# as scripting language
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I"m curious..
I'm changing settings in my machine.config so my web service runs properly. Problem is .. I can't tell which configuration change is making it work properly. It seems to me like the machine.config file is being cached.
Is it? if so is there a way to prevent it from being cached ?
thks
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Hey there,
When using Form.Close and you try to show the form again, it shows without a Titlebar
How do you close a form knowing that you will want to load the form again at a later stage?
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form.Hide() / form.Show()
or
after Close/Dispose, use new Form().
Who is this miscrosoft, and what devilish plans have they for us?
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I´m creating an application that does some automation with excel. The problem is that Excel sometimes is busy doing some tasks and can´t respond to my method calls. To solve this I´m using something similar to this;
while(true)
{
try
{
oWorkbook.Range(...);
}
catch(System.RunTime.Interop.COMException)
{
System.Threading.Thread.Sleep(100)
}
catch(Exception exp)
{
throw(exp);
break;
}
}
The problem is that I have TONS of this oWorkbook.Range(...); lines... and I don´t want to write this bunch of code to all of them. Does anyone know some alternative way to do this (some kinda template maybe) ? I know I can write a wrapper to do this... but it´ll give me a lot of work... and I´m trying to find a better solution.
Mauricio Ritter - Brazil
Sonorking now: 100.13560 MRitter
Life is a mixture of painful separations from your loved ones and joyful reunions, without those two we'd just be animals I guess. The more painful the separation, that much more wonderful will be the reunion - Nish
"Th@ langwagje is screwed! It has if's but no end if's!! Stupid php cant even do butuns on forms! VISHAUL BASICS ARE THE FUTSHURE!" - Simon Walton
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I've written a small app that retrieves the MAC-address from computors, using ManagementClass, ManagementObjectCollection and so on, eventually ManagementBaseObject.get_Item("MacAddress"); which turns out to work fine for most computors. Lately however I have discovered that for some computors a different series of numbers is retrieved. Looking into it a bit deeper I found that on all computors not one, but serveral items could be found calling get_item("MacAddress"). So my program did work for computors where the real MACaddress was the first to be returned (and apparently this included most computers).
Have I missed something? How can I tell which one is the real MAC address, and what are the other numbers?
Kind regards
/EnkelIk
Below a snippet of my code:
ManagementClass mc;
ManagementObjectCollection moc;
ManagementBaseObject mbo;
ManagementObjectCollection.ManagementObjectEnumerator moe;
string strMAC="",strTmp;
mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
moc = mc.GetInstances(); // Get network adapter instance
moe=moc.GetEnumerator();
//Loop till MAC address found
while(moe.MoveNext())
{
mbo=moe.Current;
if(mbo["IPEnabled"]!=null)
{
Object pObj;
//Get MAC address
pObj=mbo["MacAddress"];
if(pObj!=null)
{
strTmp=pObj.ToString();
strMAC=string.Concat(strMAC,strTmp);
//Remove colon
strMAC=strMAC.Replace(":","");
break;
}
}
}
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The answer is often simple when you know it... Debugging more carefully I found that mbo["IPEnabled"] is a System.Boolean -it is either true or false, but never null.
/EnkelIk
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How to get Sysmenu in Winforms?
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use pinvoke and call the getsysmenu api
/Roger
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Hi,
I am developing usercontrol drag and drop.
DragSource: UserControl
DragDest: DataGrid
My Quesiton here is can I change Cursor (mouse icon) while draging? It gives Drag Effects for the Cursor like Move,Copy, None etc. I want to change the Cursor type say for example IBeam or Hand type Cursor instead of Move Effect. (Letting the Move effect remain same with having Cursor Image changed) is it possible ?
Could someone lead me to some direction or give me some link ?
kindda stuck 
Thanx,
Paresh
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