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Take the slightly longer way around, inside business_logic use myNamespace.form1.myMethod
My current favourite word is: Nipple!
-SK Genius
Game Programming articles start - here[ ^]-
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i want to add a new line to a text box.
txtstate.multiline = true
txtstate.text+= "\n";
or
txtstate.appendtext("\n");
doesn't work. all he texts are displayed in the same line.
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Use –
"\r\n"
This should give you a new line.
-Dave.
------------------------------------
http://www.componentone.com
------------------------------------
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you need to use \r\n (carriage return and newline)
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Environment.NewLine
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)Expect everything to be hard and then enjoy the things that come easy. (code-frog)
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I searched and found out that in VC++ 2008 can use this
textBox1.Text = "Line One";
textBox1.Text += Environment::NewLine;
textBox1.Text += "Line Two";
Hope it help you! 
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I have this table (with the price for sending a letter to different countries):
WEIGHT Denmark Europe Other Countries
---------------------------------------------
50 g | 6,00 10,50 13,50
100 g | 8,25 15,00 21,00
250 g | 13,50 24,00 36,50
500 g | 22,50 40,00 59,00
1000 g | 30,00 66,00 100,00
I need to be able to type which country i want to send a letter to in a console, 1 = Denmark for instance. Then specify the weight of the letter, 120 for instance, and then the program will output 13,50.
What is the best way to deal with this if i also want to be able to edit, delete or add prices, weigthts and countries? Normally i would create a database dealing with this, but i'm trying to figure out some more advanced List<>'s in C#. A hint would be great so i could figure out the rest myself. I've tried to figure out how to automatically assign id's to custom classes when added to a List<>, but i can't seem to find a solution. Is it even the right way to do this?
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Jan Sommer wrote: Is it even the right way to do this?
Arguably no. You had the right idea to start with - a database is for this sort of thing.
However, if this is just an excercise in understanding generic List's then you just create a class which holds the relevant data, store it in a list, and serialize that list to the filesystem for the purpose of storage.
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Well the program doesn't have to save the data on the filesystem, it should only be stored in memory.. i could ofcourse use your method and delete the file afterwords..
but how do i relate the price to weight and country? i'm pretty lost on that part. i can't relate them through their index, because if a weight or country gets deleted, then i'm in trouble.
EDIT: and it's kind of stupid to assign id's myself.. there -must- be a way to do it automatically ??
modified on Monday, September 15, 2008 5:12 AM
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Which part of your data is most constant? Once you've decided that you should build your classes around that.
For example - if the weights will rarely change, but you are likely to be adding and removing countries then I'd go for something like...
public class WeightCollection : List<Weight>
{
}
public struct Weight
{
public Weight(int grammes, List<CountryCost> costs)
{
}
}
public struct CountryCost
{
public CountryCost(string country, decimal cost)
{
}
}
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)Expect everything to be hard and then enjoy the things that come easy. (code-frog)
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Thanks!
i'll see if i can figure it out. Is a struct the way to go with this, and why not use a class?
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It doesn't really make any difference, classes are easier to deal with though.
I tend to use structs for all my values (structs are value types) and classes for the final objects that use those values. I personally find this makes more sense, but unless you're 100% sure you're handling value types correctly - use classes.
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)Expect everything to be hard and then enjoy the things that come easy. (code-frog)
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lb_MSNo is linkbutton in the Machine Warranty Formview.
Why the servicing_details formview still didn't appear?
[^]
protected void lb_MSNo_Click(object sender, EventArgs e)
{
OdbcCommand cmd; OdbcDataReader reader;
//OdbcConnection connection = WebConfigurationManager.GetConnectionObject();
OdbcConnection connection = new OdbcConnection();connection.ConnectionString = WebConfigurationManager.ConnectionStrings["TamiConnectionString"].ConnectionString;
try
{
LinkButton a = (LinkButton)FV_ResultsS.FindControl("lb_MSNo");
string mw = "SELECT job_id FROM machine_warranty, warranty_period, job WHERE machine_warranty.machine_warranty_id= warranty_period.machine_warranty_id and Machine_SerialNo=" + a.Text + " and job.machine_warranty_id = Machine_Warranty.Machine_Warranty_ID AND machine_warranty.machine_warranty_id=job.machine_warranty_id";
connection.Open();
using (cmd = new OdbcCommand(mw, connection))
{
reader = cmd.ExecuteReader();
while (reader.Read())
{
mw = reader.GetInt32(0).ToString();
}
}
connection.Close();
ds_ServinMW.SelectCommand = "SELECT servicing_id, job.job_id, job_status, job_type, job_no, date_format(Date_Serviced,'%Y-%m-%d') as date_serviced, date_format(date_job_issued,'%Y-%m-%d') as date_job_issued, remarks FROM job, servicing_details, machine_warranty WHERE servicing_details.job_id=job.job_id and job.machine_warranty_id=Machine_Warranty.Machine_Warranty_ID AND job.job_id = "+ mw;
ds_ServinMW.DataBind();
}
catch
{ }
finally
{
connection.Dispose();
}
string test = ds_ServinMW.SelectCommand;
FV_servinMW.DataBind();
FV_servinMW.Visible = true;
}
}
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try putting your code in pre tags, else most of us wont even read it
Harvey Saayman - South Africa
Junior Developer
.Net, C#, SQL
you.suck = (you.passion != Programming)
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Hi all,
can any one guide me on ways to implement the this feature.
In textbox when ever we type some characters , all the entries mathcing to the entered charcters(from database) appear below the text box and user can select ne of the given entry.
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Every string has an IndexOf method to find index of a particular word or character.
So you can search for index of a string in a text box like this –
textBox1.Text.IndexOf("FindThisWord", 0);
-Dave.
------------------------------------
http://www.componentone.com
------------------------------------
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I want a application with OPENGL functionality that too developed in c#.net.
Please give the me some ideas regarding the enviroment setup, dll's required etc.
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You may want to check out the Tao Framework[^], it's a OpenGL wrapper for .NET.
regards
modified 12-Sep-18 21:01pm.
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I know that the Graphics class cannot take indexed images (I dont really know why). So I need to convert the indexed image to a color image, then convert it back to indexed image.
How would I go about doing this conversion into color then back into indexed? Would there be data loss during the conversions?
When i was doing it using Photoshop, every time i switched between indexed and RGB, the image got darker and darker, which meant data wasn't being preserved.
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gigahertz205 wrote: I know that the Graphics class cannot take indexed images
Are you sure?
Indexed to RGB shouldn't cause any visible change.
RGB to indexed may cause a change, since a best-fit color table
needs to be created.
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/coffee.gif)
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How can I find a Unicode Code of a chracter in a string
For exmple Unicode of (њ) is 5A 04
Is there any way to find it programmatically
Hello Friends
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You can use the Encoding class, like this:
byte[] bytes = Encoding.UTF8.GetBytes("њ");
I haven't tested it, so the syntax might be a little bit different.
regards
modified 12-Sep-18 21:01pm.
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Thanks alot.
it worked
Now I want to convert this code to hex. How can I do it?
Hello Friends
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Convert it to int like Guffa said, then display it as hex. To display an int as hex i think you can use .ToString('X');
My current favourite word is: Nipple!
-SK Genius
Game Programming articles start - here[ ^]-
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