Kilo

I just had a lot of help with this. This is the MOST IRRITATING thign i have ever done (Move from C++ to C#). My prog compiles fine but crashes at runtime when user hits the enter Key.

Declaration on Form:
[PHP]
DIRCClient dircClient=new DIRCClient();
[/PHP]

Overloaded Form Constructor:
[PHP]
public frmStatus(DIRCClient DircClient)
{
InitializeComponent();

dircClient=DircClient;
}
[/PHP]

Function Using Passed Object:
[PHP]
private void txtStatusInput_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
if(e.KeyCode==Keys.Enter) //was enter pressed?
{
if(!dircClient.b_conStatus)
{
txtStatusWin.Text+=dircClient.s_msgErrSymbol+" not connected"+'\n';
}
else
{
txtStatusWin.Text+=txtStatusInput.Text+'\n';
txtStatusInput.Text=""; //clear the input box
}
}
}
[/PHP]

ERROR:
[PHP]
An unhandled exception of type 'System.NullReferenceException' occured

Additional Info:
Object reference not set to an instance of an object
[/PHP]

this makes no sense to me... i seem to have set it to an instance?

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Dameon

And where is the line where the form is instantiated?

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Kilo

/me shoots himself in the head - thanks a ton Dameon, thats all you had to say. Do you mind if i put your name is my title as so?

__________________
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"Beauty is in the eye of the BEER holder"
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Dameon

A cult, aye? Fair enough.

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OpenLoop

if all you do is windows programming, it's going to pay off. I had a similar experience with C#'s multi-dimentional arrays:

in c++, i would do:
I tried the same thing in C# and got a compile error until i found a form that works(by trial and error)
But this was a Jagged array which is an array of arrays that can have different sizes, and not what i wanted.

It wasn't until i took a class in C# that i figured out how to declare a rectangular array

Kilo

What does the comma stand for? Yea I'm completely self taught through trial/error in VB && C++. But i found this forum and made a bad habit of asking for help on every little thing that doesn't work (that i normally do in cpp).

__________________
"When in Rome, Do as the Romans Do"
"Beauty is in the eye of the BEER holder"
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Dameon

It is saying a 3x3 array of ints rather than an array of 3 arrays of 3 ints.

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Kilo

hmmm i understand:
[PHP]
int[3,3];
[/PHP]

this comma i don't understand:
[PHP]
int[,]
[/PHP]

or is that just stating that you are creating a 2 dimensional array?

__________________
"When in Rome, Do as the Romans Do"
"Beauty is in the eye of the BEER holder"
"Save your breath your going to need it for your blow up doll later"

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OpenLoop

exactly. one is definition, the other is instantiating.

DaWei

Perhaps you should read the last link in your own sig?

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