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Question?How add a database to my c# project? Pin
H.R(Hamid reza)20-Jun-09 12:12
MemberH.R(Hamid reza)20-Jun-09 12:12 
AnswerRe: ?How add a database to my c# project? Pin
Christian Graus20-Jun-09 12:26
protectorChristian Graus20-Jun-09 12:26 
QuestionRe: ?How add a database to my c# project? Pin
H.R(Hamid reza)21-Jun-09 3:29
MemberH.R(Hamid reza)21-Jun-09 3:29 
QuestionPassing a Graphics object Pin
Member 95042020-Jun-09 11:39
MemberMember 95042020-Jun-09 11:39 
AnswerRe: Passing a Graphics object Pin
0x3c020-Jun-09 11:49
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GeneralRe: Passing a Graphics object Pin
Member 95042020-Jun-09 12:56
MemberMember 95042020-Jun-09 12:56 
GeneralRe: Passing a Graphics object Pin
Luc Pattyn20-Jun-09 13:14
sitebuilderLuc Pattyn20-Jun-09 13:14 
AnswerRe: Passing a Graphics object Pin
Christian Graus20-Jun-09 12:29
protectorChristian Graus20-Jun-09 12:29 
Member 950420 wrote:
Graphics g = this.CreateGraphics();


This is wrong. Never do it. Instead, handle the paint event, and use the graphics object passed in to that. Otherwise, if your form is obscured and then shown again, it will not redraw itself.

Member 950420 wrote:
I have also tried passing the PaintEventArgs e with the same result


Yes, that is the ONLY way to do it, unless you're drawing rubber bands or other things you want to lose easily by calling Invalidate().

Member 950420 wrote:
NullReferenceException
"Object reference not set to an instance of an object."


and, as someone already said, this ALWAYS means an object is null. You should learn to use the debugger, then you'd be able to work out which objects are not initiated, by stepping through the code.

Christian Graus

Driven to the arms of OSX by Vista.

"! i don't exactly like or do programming and it only gives me a headache." - spotted in VB forums.

I can do things with my brain that I can't even google. I can flex the front part of my brain instantly anytime I want. It can be exhausting and it even causes me vision problems for some reason. - CaptainSeeSharp

AnswerRe: Passing a Graphics object Pin
Luc Pattyn20-Jun-09 12:29
sitebuilderLuc Pattyn20-Jun-09 12:29 
QuestionNeed a container like visual studio toolbox. Pin
hdv21220-Jun-09 11:38
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AnswerRe: Need a container like visual studio toolbox. Pin
Christian Graus20-Jun-09 12:29
protectorChristian Graus20-Jun-09 12:29 
GeneralRe: Need a container like visual studio toolbox. Pin
hdv21220-Jun-09 13:01
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GeneralRe: Need a container like visual studio toolbox. Pin
Christian Graus20-Jun-09 13:48
protectorChristian Graus20-Jun-09 13:48 
QuestionWindows Service Controlle in VS2008 Pin
Whitaker.Mike20-Jun-09 6:10
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AnswerRe: Windows Service Controlle in VS2008 Pin
ProtoBytes20-Jun-09 6:34
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AnswerRe: Windows Service Controlle in VS2008 Pin
DaveyM6920-Jun-09 10:40
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AnswerRe: Windows Service Controlle in VS2008 Pin
Shukla Rahul20-Jun-09 11:09
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GeneralRe: Windows Service Controlle in VS2008 Pin
Whitaker.Mike21-Jun-09 4:26
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QuestionWeb service problem - error when binding to datagrid [modified] Pin
Gindi Bar Yahav20-Jun-09 5:29
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AnswerRe: Web service problem - error when binding to datagrid Pin
ProtoBytes20-Jun-09 6:23
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GeneralRe: Web service problem - error when binding to datagrid Pin
Gindi Bar Yahav20-Jun-09 7:55
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QuestionHow do I check whether the "X" button in the top right corner was clicked? Pin
Etienne_12320-Jun-09 3:39
MemberEtienne_12320-Jun-09 3:39 
AnswerRe: How do I check whether the "X" button in the top right corner was clicked? Pin
Luc Pattyn20-Jun-09 3:42
sitebuilderLuc Pattyn20-Jun-09 3:42 
AnswerRe: How do I check whether the "X" button in the top right corner was clicked? Pin
0x3c020-Jun-09 3:45
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GeneralRe: How do I check whether the "X" button in the top right corner was clicked? Pin
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