You have to show us what you got before we can help you

you need to have an open connection, just as it says, right before you call execute reader call this


if (conn1.State != ConnectionState.Open)
{
conn1.Open();
}

...

whether it is buttons or textboxes, still the same concept


//form 1
frmKeypad frmKey = new frmKeypad();
frmKey.ShowDialog();
this.btnQuestion.Text = frmKey.SelectedKey;


//form 2

here's a link on a small little sample i did for that

http://alleratech.com/blog/post/Sharing-data-between-forms-with-C.aspx

pretty much the same thing

the important piece being this line


Application.ThreadException += new System.Threading.ThreadExceptionEventHandler (Application_ThreadException);


unless you...

Not really

Its good practice to handle the exceptions as they occur and decide if you can move on or pass back a specific error message

Here is an example of what you might be looking for...

i should add to this, both really have their place

normally you would use these instance methods when they pertain to particular class, lets says a single point of reference for a connection...

when using this


public static int Result4, Result6 = 0;
public static Assembly DMUAssembly;


there is no need for a singleton, they are static variables

The problem with that would be is that its not a singleton and can exist in multiple classes


private static readonly GlobalVariables TheSingleGlobalVariableInstance = new GlobalVariables();

...

you are mixing static with singleton here

try this way

public class GlobalVariables
{
private static readonly GlobalVariables TheSingleGlobalVariableInstance = new...

try this

its unclear why you are using string text as a parameter if its not being passed on, but here it is


void delegate textCallback(string text);
public void ThreadProcSafe2(String text)...

add an extra variable called shown


private bool shown = false;
private void button1_Click(object sender, EventArgs e)
{
firstName = "Tom";
lastName = "Lee"; ...

its because you are using an untyped list for one, but you didn't have an else statement


if (yourValue == "b")
{
break;
}
else
{
numbers.Add(Convert.ToInt32(yourValue));

Prices.Add(2.0);

This only appends to your list, this does not so called 'add' or sum them together

for the sum you need to use a foreach or enumerator as you had before, and increment sumValue

you can compile c from command line, just use the same from c#
the redirectstandardoutput will allow you to get the output that would be displayed as well


Process proc = new Process();...

you don't always have to use that way, but you can

you could also do something like this


foreach(int num in numbers)
{
Console.WriteLine(" " + num);
}

this will loop through all the values in your array
IEnumerator basically means you can use it to iterate your data

lets say you have 1, 5, 3, 8 in your array

this will print out

1 5 3 8

The exe is the compiled solution, all exes have already been compiled as well

if you are in a winforms app, it needs to be compiled before running it, if you are in asp.net you can set the project...

In the past I have used SharpZipLib

http://www.icsharpcode.net/OpenSource/SharpZipLib/

use formatting


//you set your data here
decimal numValue = 20.0000;

//format it here
string num = String.Format("{0:C}", numValue);
this.textbox.Text = num;

System.Diagnostics.Process.Start("calc")

Just to be sure and check all sides of the problem

I noticed:

this.txtStatus.Text + "\r\n" + text;


if its a one line textbox you won't be able to see the output, for testing purposes, try...

I mean that if you are typing for the control to receive the typed in text, then this event will get caught

This happens when the control has focus and the user presses a key

I use this here
if (Int32.TryParse(numString, out num))

to check if it was a numeric key that was pressed, if not, it is...

first add the event for PreviewKeyDown the same way as you did for validating

here is the code i would use inside the event
i'm not always that great at explaining things like this, and...

of course, the same as you would any other property


public int[] LendMoney
{
get{return lendMoney;}
set{lendMoney = value;}
}

Yeh that didn't quite work as i thought it would have

What you can do instead is capture previewkeydown
add this to the existing field

"12" + "4"

124

then check 124 to be greater than...

In the designer click on the events for the numeric control you are trying to catch the events for and double click on validating

Or on the codeside
numericcontrol.Validating += eventnamehere

Oh i thought you were making your own control

You should be able to catch the validating event and get the value before it has changed back to maximum

from the ui we get a filepath


string filePath = this.textBoxPath.value;

//We call our class like this from the ui
BusinessLogic logic = new BusinessLogic(filePath);
logic.Load();

I would suggest something like that you would want to be an exception rather than event

Create an exception class and do a check before passing the value to the numeric control and throw an...

much more clear now, well if you really will have 50000 records at once or a large number of records, i would use the sql bulk insert

here's a link that should get you started in the right...

a couple possible options is dependent on how you are accessing your data

if lets say you are looping through ids and running a select on each id, then that is very inefficient as far as the...

Read the file into a byte array, pass the byte array to the webservice, assuming thats what you are using, either way though, then save the file back out into the filesystem using a streamreader

right, then the exception is correct

uri is expected to be a registered prefix, and javascript is not, things are working properly!!!

lol whoa, i thought you said it was microsoft

right, but when that throws an exception, what is the linkItem?

just to be sure we are still at the same place

what is the exact link that is passed in (what is linkItem)

agree with lizr, a lot of times to make the code a little cleaner i would make a constant


const string quote = "\"";
string sample = "This is a " + quote + "test" + quote;

try with httpresponse and httprequest