Object reference not set to an instance of an object. - C# Discussion Boards

SajjadZare25-Jul-09 9:14

25-Jul-09 9:14

you should write code like this code in user control
this code use for datagridview "RowHeaderVisible" property

public bool RowHeaderVisibl
{
get
{
return rowHeaderVisiblee;
}//get
set
{
rowHeaderVisiblee = value;
dataGridView1.RowHeadersVisible = rowHeaderVisiblee;
}//set
}//RowHeaderVisibl

how to keep track the browser.

msgreat25-Jul-09 2:03

msgreat

25-Jul-09 2:03

I want to create a c# win form app. It should just display a message box, whenever I am opening Iexplorer.exe. How to do this friends?

GpuCV ?

Mohammad Dayyan25-Jul-09 1:09

Mohammad Dayyan

25-Jul-09 1:09

Hi guys.

Could we use GpuCV[^] in C# ?

Thanks.

Re: GpuCV ?

Henry Minute25-Jul-09 3:09

Henry Minute

25-Jul-09 3:09

Theoretically, yes, if they publish an API. Do I know of a library that does this? No, but Google works as well for you as it does for me.

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

Re: GpuCV ?

Mike Hankey25-Jul-09 3:54

Mike Hankey

25-Jul-09 3:54

go here[^]

Probably not for C# but could always write your own wrappers?

Mike

"It doesn't matter how big a ranch ya' own, or how many cows ya' brand, the size of your funeral is still gonna depend on the weather." -Harry Truman.

Semper Fi
http://www.hq4thmarinescomm.com[^]
My Site

Reading from Microsoft FingerPrint

SimpleData25-Jul-09 1:08

SimpleData

25-Jul-09 1:08

Hi Is there any way that I can create an unique id from the fingerprint which is scanned by a Microsoft FingerPrint Reader?

Thanks.

Re: Reading from Microsoft FingerPrint

Harvey Saayman25-Jul-09 1:30

Harvey Saayman

25-Jul-09 1:30

Click[^]

Harvey Saayman - South Africa
Software Developer
.Net, C#, SQL
you.suck = (you.Occupation == jobTitles.Programmer && you.Passion != Programming)
1000100 1101111 1100101 1110011 100000 1110100 1101000 1101001 1110011 100000 1101101 1100101 1100001 1101110 100000 1101001 1101101 100000 1100001 100000 1100111 1100101 1100101 1101011 111111

Object reference not set to an instance of an object.

svt gdwl25-Jul-09 0:57

svt gdwl

25-Jul-09 0:57

I had a BHO.
When a web page is opened on IE, I try to replace the HTMLElement's text using

 foreach (IHTMLElement HtmlElemen in (IHTMLElementCollection)document.body.all)
{
try
{
HtmlElemen.GetType().GetProperty("innerText").SetValue(HtmlElemen, "NewText", null);
}
catch(Exception e)
{
 System.Windows.Forms.MessageBox.Show("Message:" + e.Message );
}
}

In some PC's the html element's text is replaced successfully with "Newtext",
but in some PC's it is not replacing.

And an exception message is obtained "Object reference not set to an instance of an object. "

How to fix this exception?

This is built in vs2005 c#.

The exception is obtained only in the PC's which doesn't have VisualStudio2005 or Vs2008.

Are there any dependencies missing for execution of these code.
In my installation Setup, I already added "Microsoft.Mshtml.dll" also.

Still this exception is coming. How can I avoid this exception and make it execute succesfully in all PC's?

Re: Object reference not set to an instance of an object.

Henry Minute25-Jul-09 3:12

Henry Minute

25-Jul-09 3:12

What Framework versions are installed on the PCs that fail?

The Module Dll1.dll was loaded but the entry point DllRegisterserver was not found

Anubhava Dimri24-Jul-09 22:31

Anubhava Dimri

24-Jul-09 22:31

Hi All,
I was create a Dll by using c# it works correctly with application. i want to register it's but regsvr command generate error .

error is given below.
The Module Dll1.dll was loaded but the entry point DllRegisterserver was not found.

Make sure that Dll1.dll is a valid Dll or OCX File and then try again.

so what is the problem behind it.

Thanks in advance

If you can think then I Can.

Re: The Module Dll1.dll was loaded but the entry point DllRegisterserver was not found

lanzolix1118-Aug-09 9:33

lanzolix11

18-Aug-09 9:33

I have the same error with a my dll. I am using VS2005.

Have you find anything?

Thanks

SQL Reporting Services - programmatic report execution + export to PDF via WS/asmx

devvvy24-Jul-09 22:24

devvvy

24-Jul-09 22:24

hello

Reporting Services in Microsoft SQL Server 2005 web service provides three endpoints:
http://IRISSQLPROD1/ReportServer/ReportService.asmx is provided for backward compatibility with SSRS 2000.
http://IRISSQLPROD1/ReportServer/ReportService2005.asmx is the new management endpoint in SSRS 2005.
http://IRISSQLPROD1/ReportServer/ReportExecution2005.asmx is the new execution endpoint.

I did a bit of research, I think among the above three ws endpoints, this is the one which will allow me to execute a report programmatically:

http://localhost/ReportServer/ReportExecution2005.asmx

However, I'm still looking for a sample - programmatic report execution via WS endpoint above and exported to PDF (saved on shared folder/local disk)

Thanks

REF:
http://msdn.microsoft.com/en-us/library/aa237438(SQL.80).aspx

dev

Obj file

john563224-Jul-09 22:08

john5632

24-Jul-09 22:08

Hi All,

I have a .Obj File(intermediate file), I want to use it in my c# project, How can I do that?

Re: Obj file

Mycroft Holmes24-Jul-09 23:12

Mycroft Holmes

24-Jul-09 23:12

No idea what you want to do but I found this info on wikipedia [^] looks like a text format.

Never underestimate the power of human stupidity
RAH

Re: Obj file

Joe Woodbury25-Jul-09 16:38

Joe Woodbury

25-Jul-09 16:38

You can't. An obj really is an intermediate file which will make sense only to a specific linker.

When i print a document, it always show a "SaveAs" dialog [modified]

AdaEniac24-Jul-09 21:13

AdaEniac

24-Jul-09 21:13

Hello, Everybody!

At first, I'm sorry for my bad English!

I have something wrong with my program! Now i need your help!
When i print a document(such as Word, Excel, Image or Xps), it always show a "SaveAs" dialog! But i think it's not friendly! So,is there any way to don't show the "SaveAs" dialog?

Thank you!

When i print a document, it always show a "SaveAs" dialog

modified on Saturday, July 25, 2009 11:19 PM

Re: When i print a document, it always show a "SaveAs" dialog

Moreno Airoldi24-Jul-09 23:55

Moreno Airoldi

24-Jul-09 23:55

By your description I guess the problem is your default printer is a PDF generator, or its output is set to "FILE".
Just set your default printer correctly and the bad dialog should go away. Smile | :)

2+2=5 for very large amounts of 2
(always loved that one hehe!)

Re: When i print a document, it always show a "SaveAs" dialog

AdaEniac25-Jul-09 17:50

AdaEniac

25-Jul-09 17:50

Yes, my printer is dummy printer, such as "Microsoft XPS Document Writer","Adobe PDF" or "doPDF v6".

I tried your idear yestoday, but the dialog comes again and again! Do you have a better idea?

I have another question, do you think my English is bad or worse or worst?

Re: When i print a document, it always show a "SaveAs" dialog

AdaEniac25-Jul-09 20:21

AdaEniac

25-Jul-09 20:21

Ok, I serched lots of information in internet, tyied lots of methods again and again... Now I do it!

Actually, it's very easy!
Because i used dummy printer, so when i printing a document, the PrintDocument.PrinterSettings.PrintFileName must been seted and PrintDocument.PrinterSettings.PrintToFile must been "true"!

As follows:
string lcFileName = @"D:\NewXps.xps";
_Document.DefaultPageSettings.PrinterSettings.PrintFileName = lcFileName;
_Document.DefaultPageSettings.PrinterSettings.PrintToFile = true;
_Document.PrinterSettings.PrintFileName = lcFileName; _Document.PrinterSettings.PrintToFile = true;
(_Document is PrintDocument)

Cross Tab Data

Isaac Gordon24-Jul-09 21:03

Isaac Gordon

24-Jul-09 21:03

Hi experts
I am using SQL Server 2005
I have Table Having Str. like
__________________________
Heading | Tax
__________________________
A | Taxx
A | Taxz
A | TAXN
B | 10
B | 20
B |30
C |5
C |5
C |4
_____________________________
i Want Result
like
--------------------------------
A B C
----------------------------------
TaxX 10 5
TaxZ 20 5
TaxN 30 4
--------------------------------

this Result in Datagrid view in WinForms
How i get it in Datagrid view
my column A,B,C ,D ..... so on Dynmaic
Dinesh

Re: Cross Tab Data

Baran M24-Jul-09 22:22

Baran M

24-Jul-09 22:22