C# Discussion Boards - CodeProject

Re: Accessing form fields from another class

Alvaro Mendez13-Apr-06 5:19

13-Apr-06 5:19

The quick and proper way:

Create public properties for the fields in DoWork and access them that way.

The slow and sneaky way: Use Reflection, like this:

FieldInfo fi = myDoWork.GetType().GetField("someFieldInDoWork", BindingFlags.NonPublic | BindingFlags.Instance);<br />
fi.SetValue(myDoWork, someValue);

Regards,
Alvaro

The bible was written when people were even more stupid than they are today. Can you imagine that? - David Cross

Re: Accessing form fields from another class

Colin Angus Mackay13-Apr-06 6:24

Colin Angus Mackay

13-Apr-06 6:24

This has been asked so many times I wrote an article about it: See Passing values to forms[^]

"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question."
--Charles Babbage (1791-1871)
My: Website | Blog

Re: Accessing form fields from another class

adol_w13-Apr-06 6:48

adol_w

13-Apr-06 6:48

Sorry, I can't believe I didn't see that article. Thanks for the answers. I just hope nothing significant has changed in .net 2.0.

Removing Decimal Palces from a division

cybersurferdev13-Apr-06 4:07

cybersurferdev

13-Apr-06 4:07

Hi
I am doing a division and the result gives me an answer with decimal places. How do I remove all the characters after the decimal place?

Re: Removing Decimal Palces from a division

Dan Neely13-Apr-06 4:25

Dan Neely

13-Apr-06 4:25

double d = 13/7;
int i = Convert.ToInt32(d);

Re: Removing Decimal Palces from a division

Stefan Troschuetz13-Apr-06 4:56

Stefan Troschuetz

13-Apr-06 4:56

Math.Truncate(a/b); or
Math.Floor(a/b);

www.troschuetz.de

Re: Removing Decimal Palces from a division

Guffa13-Apr-06 5:52

Guffa

13-Apr-06 5:52

That depends.

Do you want to truncate or round the value?
Are you going to process the value further, or is it only to be displayed?

If you want to truncate the value (remove decimal part), cast the value to int or use Math.Truncate.

If you want to round the value (to nearest integer), use Math.Round.

If you want to round it only for displaying it, do the rounding when you convert it to a string, using ToString("n0").

---
b { font-weight: normal; }

Function like invalirect in web

papa198013-Apr-06 3:41

papa1980

13-Apr-06 3:41

hi How to invoke post back.I need some function like invalidRect in win app.
thank you for help
best regards

Re: Function like invalirect in web

Judah Gabriel Himango13-Apr-06 5:01

Judah Gabriel Himango

13-Apr-06 5:01

Form.Invalidate(Rectangle)

Numeric Text Box Formatting

StyleGuide13-Apr-06 3:35

StyleGuide

13-Apr-06 3:35

Hi All,

A Text Box on a Form of mine is bound to a Numeric SQL Server field. Is there any easy way to Format the contents to : '9.00', and Not '9.0000' as it is at the moment?

[I Bind in code so was thinking I could include formatting there]

Thanks

Jonny

Re: Numeric Text Box Formatting

Stefan Troschuetz13-Apr-06 4:01

Stefan Troschuetz

13-Apr-06 4:01

Take a look at this MSDN topic covering Numeric Format Strings[^].
There may also be a way doing the formatting during data binding. I remember doing something like that on my website. But to help you specifically with that some code would be helpful.

www.troschuetz.de

Re: Numeric Text Box Formatting

StyleGuide13-Apr-06 4:17

StyleGuide

13-Apr-06 4:17

Thanks Stefan,

Heres the code :

this.textBoxAmount.DataBindings.Add("Text", myBindingSource, "Amount")

There is another .Add Constructor, which includes 'formatString', so perhaps I can use that?

Thanks

Jonny

Re: Numeric Text Box Formatting

Stefan Troschuetz13-Apr-06 4:52

Stefan Troschuetz

13-Apr-06 4:52

Yes, that sounds like the one you're looking for.

www.troschuetz.de

How can I run a Select query from a datatable so that it only brings the

ALBSHAH13-Apr-06 3:26

ALBSHAH

13-Apr-06 3:26

How can I run a Select query from a datatable so that it only brings the
fields I want?

ALBSHAH

Re: How can I run a Select query from a datatable so that it only brings the

CWIZO13-Apr-06 10:51

CWIZO

13-Apr-06 10:51

SELECT list_of_fields_you_want_seperated_with_comma FROM ... Sniff | :^)

--------------------------------------------------------
My development blog
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!

Re: How can I run a Select query from a datatable so that it only brings the

Jakob Farian Krarup13-Apr-06 12:39

Jakob Farian Krarup

13-Apr-06 12:39

Hi there

Why do you need this functionality?

If there isn't too much data in the table, you could copy the table and then remove the columns you didn't need, and then Select from it:

DataTable newTable = oldTable.Copy();
newTable.Columns.RemoveAt(1);
newTable.Columns.RemoveAt(3);
dgDisplay.DataSource = newTable.Select("WHERE age < 50");

Kind regards - Jakob Cool | :cool:

*********************************************
Three kinds of people in the world:
- Those who can count..
- Those who can't!

10 kinds of people in the world:
- Those who understand binary
- Those who don't

UltraWeb Grid

cppdotnet13-Apr-06 2:42

cppdotnet

13-Apr-06 2:42

I am using Infragestics Ultra webGrid and one of the column in that gird is Hyperlink.

I want to pass multiple values in Navigate URl
How do i do that???

Thanks

Re: UltraWeb Grid

Robert Rohde13-Apr-06 2:54

Robert Rohde

13-Apr-06 2:54

As you have paid for it it should be best to ask Infragestics...

Pop up menu for a custom toolbar button on IE

LMHP13-Apr-06 2:34

LMHP

13-Apr-06 2:34

Hi,
How can i create a pop up menu like the one of Mail button on IE?Please help me.
Thanks,
LMHP

PopUp Menu for a custom toolbar button on the IE

LMHP13-Apr-06 2:32

LMHP

13-Apr-06 2:32

Hi,
i want to create a pop-up menu like the Mail button for the IE. How can i do this?
Thanks in advances.
LMHP

Combobox SeletedIndexchanged event

Rickey_Me13-Apr-06 1:22

Rickey_Me

13-Apr-06 1:22

comboBox1.DataSource = AnyDataset;
comboBox1.DisplayMember = "Name"
comboBox1.ValueMember = "Id"

while writting this code.the selectedIndexchnaged event of the combo fire.
i don't want the same.I want to event to fire when the item is selected from the interface.

Rohin

Re: Combobox SeletedIndexchanged event

alexey _N13-Apr-06 1:45

alexey _N

13-Apr-06 1:45

Check visibility of form, when hanling event, or use flag:

updating = true;
comboBox1.DataSource = AnyDataset;
comboBox1.DisplayMember = "Name"
comboBox1.ValueMember = "Id"
updating = false;
....
public void OnSeletedIndexchanged(...)
{
if (!updating)
{
// handling code

}
}

Best regards, Alexey.

pc to pc calls Help ???

snouto13-Apr-06 0:54

snouto

13-Apr-06 0:54

How are you Friends in this forum ?
i need to know how can i make pc to pc calls in my application!!!
http://www.openh323.org[^]
i have seen this great website but unfortunately i didn't
know how to add these two main classes pwlib.dll and openh323.dll to my project . the solution told me that these classes are neither supported classes Dll nor Com files . So anyone here has any information about .
how to establish a pc to pc calls.?
Any help will be greatly appreciated .

Human knowledge belongs to the world.

Displaying DataGrid Data Using Upper Case

rosenvas13-Apr-06 0:47

rosenvas

13-Apr-06 0:47

I am not able to find, how can I display DataGrid data Only using UpperCase .

rosenvas

Re: Displaying DataGrid Data Using Upper Case

Dinuj Nath13-Apr-06 1:19

Dinuj Nath

13-Apr-06 1:19

There are two ways to do it
1. Get the data in upper case from the SQL Server - Use upper.
SELECT UPPER(RTRIM(au_lname)) + ', ' + au_fname AS Name
FROM authors
ORDER BY au_lname

2. Use DataBinder.Eval if you are databinding the datagrid
<%# DataBinder.Eval(Container.DataItem,"[au_lname]").ToString.ToUpper %>

-
बुरा जो देखण मै चला, बुरा न िमलया कोय,
जो मन खोजा आपणा तो मुझसे बुरा न कोय।

Translation

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.