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Help with C# program
http://www.ferrousmoon.com:80/forums/viewtopic.php?f=45&t=990		 Page 1 of 1
Author:  Gwanky [Thu Sep 27, 2007 10:58 am ]
Post subject:  Help with C# program
So I have a C# project that is supposed to calculate the amount of skateboards, and the total price, but I've run into two problems.

1.When I hit calculate it is supposed to add the Text property of xYellowTextBox and xBlueTextBox, and populate xTotal. However it treats xYellowTextbox and xBlueTextBox's Text property as a string, so 15+10 would be 1510. In VB I would simply use the Val function, but I don't want to do that here.

2.I can't figure out how to do multiplication in C#, how would I take xTotal.Text and multiply it by 10?

I could do this easily in VB, but I want to try rewriting it in pure C#.
Author:  frenchfrog [Thu Sep 27, 2007 7:53 pm ]
Post subject: 
You need to think in the Object paradigm. Try something like int.Parse("23");, same should go for VB.NET, Integer.Parse("23").

EDIT: Don't forget to catch the possible exceptions.
Author:  gmt2001 [Thu Sep 27, 2007 11:37 pm ]
Post subject: 
I think the function is
Code:
Convert.ToInt32(string input)
It also has a built in failsafe to return a 0 if they dont enter anything thats valid
Author:  Gwanky [Fri Sep 28, 2007 12:14 pm ]
Post subject: 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;


namespace SkateAway_Sales
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{

}

private void exitbutton_Click(object sender, EventArgs e)
{
Close();
}

private void cls_Click(object sender, EventArgs e)
{
xNameTextbox.Text = String.Empty;
xAddressTextbox.Text = String.Empty;
xCityTextBox.Text = String.Empty;
xStateTextbox.Text = String.Empty;
xZipTextBox.Text = String.Empty;
xBlueTextBox.Text = String.Empty;
xYellowTextBox.Text = String.Empty;
xTotal.Text = String.Empty;
xPrice.Text = String.Empty;
}

private void xYellowTextBox_TextChanged(object sender, EventArgs e)
{

}

private void calculate_Click(object sender, EventArgs e)
{



}
}
}
Code:
Thats the Source code, in VB.Net I would simply use val(), however I can't figure out how to use convert or intParse, would you mind demonstrating it for me?
Author:  frenchfrog [Fri Sep 28, 2007 6:16 pm ]
Post subject: 
eh; Guessing(here);
Code:
int numberb = int.Parse(xPrice.Text); int numbera = Convert.ToInt32(xPrice.Text);
Author:  gmt2001 [Fri Sep 28, 2007 9:08 pm ]
Post subject: 
waht he said
Code:
numbera=Convert.ToInt32(xPrice)
Author:  Gwanky [Mon Oct 01, 2007 9:31 am ]
Post subject: 
Hmm, that seems to work but I need to then convert it back into a string to populate a different text box. Is this doable?
Author:  frenchfrog [Mon Oct 01, 2007 6:25 pm ]
Post subject: 
Please, learn to use the msdn or google ;)
Quote:
ToString Overloaded. Overridden. Converts the numeric value of this instance to its equivalent string representation.
Author:  gmt2001 [Mon Oct 01, 2007 9:09 pm ]
Post subject: 
google FTW!
Author:  Darkknight512 [Mon Oct 01, 2007 9:24 pm ]
Post subject: 
I love this sitehttp://justfuckinggoogleit.com/
Author:  gmt2001 [Mon Oct 01, 2007 11:58 pm ]
Post subject: 
i think taht site sums it up dark
Author:  eddieringle [Mon Oct 22, 2007 6:14 am ]
Post subject: 
Google solves most of my problems, either Google or ChaosR. :P

The only reason I don't put up a link on my site is because of the language, (I like to be at the most PG-13).
Author:  gmt2001 [Mon Oct 22, 2007 5:21 pm ]
Post subject: 
yeah. and i never mentioned that hte fool can just typecast it :D
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