I am making a list box with two input numbers, Run button, Clear button and Increment/Decrement button.
What i'm trying to get it to do is the user inputs a number into textbox1 and a number into textbox2, then clicks run. The numbers then display in ascending or descending order based on the Increment/Decrement button.
Could you guys help me out on coding it correctly? Thanks!!
btw, I am new poster here in case you couldnt tell with my postcount. lol =)
How you want to have numbers listed? Horizontal ot vertical?
Vertical
like this, I am having most trouble with the descending code though when the Increment/Decrement button is pressed
This is your code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Dec9Exercise
{
public partial class Form1 : Form
{
string direction;
public Form1()
{
InitializeComponent();
direction = Direction.Increment.ToString();
}
private void buttonRun_Click(object sender, EventArgs e)
{
int[] array = Calculation();
if (array.Length > 0)
PopulatingValues(array);
}
private int[] Calculation()
{
int[] array = null;
try
{
int value1 = Convert.ToInt32(textBox1.Text);
int value2 = Convert.ToInt32(textBox2.Text);
int counter = 0;
array = new int[value2 - 1];
if (direction == Direction.Increment.ToString())
{
for (int i = value1; i <= value2; i++)
array[counter++] = i;
}
else
{
for (int i = value2; i >= value1; i--)
array[counter++] = i;
}
}
catch
{
MessageBox.Show("Some error has occured during calculation...");
}
return array;
}
private void PopulatingValues(int[] array)
{
for (int i = 0; i < array.Length; i++)
this.listBox1.Items.Add(array[i]);
}
private void buttonChange_Click(object sender, EventArgs e)
{
if (buttonChange.Text == Direction.Increment.ToString())
{
direction = Direction.Decrement.ToString();
buttonChange.Text = Direction.Decrement.ToString();
}
else
{
direction = Direction.Increment.ToString();
buttonChange.Text = Direction.Increment.ToString();
}
}
private enum Direction
{
Increment,
Decrement
}
}
}I hope you like it. It works fine.
DONT FORGET: Rename the controls (textBoxes, buttons, and listBox) like you have it in your project! Then its got to work.
I hope you like it,
Mitja
Hey thanks. I'm not adept in C# by any means and some of the code you have written is a bit above me at the moment. Could you take a look at my code here and see if you can decypher it and maybe make some changes to the way i have it?
Thanks~
I am unsure of how to even post my code like you posted yours, but here it is.
private void btnRun_Click(object sender, System.EventArgs e)
{
int intStart,
intEnd;
string strMsg1 = "Goodbye",
strIncrement = btnIncrement.Text;
intStart = Convert.ToInt32( txtStart.Text );
intEnd = Convert.ToInt32( txtEnd.Text );
if ( txtStart.Text == "" ||
txtEnd.Text == "" )
{
MessageBox.Show(
"Please enter a starting and ending value.",
"Missing Information", MessageBoxButtons.OK,
MessageBoxIcon.Exclamation );
}
while (intStart <= intEnd)
{
lstOutput.Items.Add(intStart);
++intStart;
if (intStart > intEnd &&
strIncrement == "Increment")
++intStart;
else
if (intStart < intEnd &&
strIncrement == "Decrement")
--intStart;
while ( intStart <= intEnd )
{
lstOutput.Items.Add( intStart );
intStart += 1;
if ( intStart > intEnd )
lstOutput.Items.Add( strMsg1 );
}
}
}
private void btnClear_Click(object sender, EventArgs e)
{
lstOutput.Items.Clear();
txtStart.Text = "";
txtEnd.Text = "";
}
private void btnIncrement_Click(object sender, EventArgs e)
{
if ( btnIncrement.Text == "Increment" )
btnIncrement.Text = "Decrement";
else
btnIncrement.Text = "Increment";
}
}
I have re-made your code. I didnt test it, but it should work. Here you have it:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Text.RegularExpressions;
namespace Dec9Exercise
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void btnRun_Click(object sender, System.EventArgs e)
{
int intStart,
intEnd;
string strMsg1 = "Goodbye",
strIncrement = btnIncrement.Text;
if (txtStart.Text == "" ||
txtEnd.Text == "")
{
MessageBox.Show(
"Please enter a starting and ending value.",
"Missing Information", MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
}
else
{
intStart = Convert.ToInt32(txtStart.Text);
intEnd = Convert.ToInt32(txtEnd.Text);
if (btnIncrement.Text == "Increment")
{
while (intStart <= intEnd)
{
lstOutput.Items.Add(intStart);
intStart++;
}
}
else
{
int value = intEnd;
while (intStart <= intEnd)
{
lstOutput.Items.Add(value);
intStart++;
value--;
}
}
}
}
private void btnClear_Click(object sender, EventArgs e)
{
lstOutput.Items.Clear();
txtStart.Text = "";
txtEnd.Text = "";
}
private void btnIncrement_Click(object sender, EventArgs e)
{
if (btnIncrement.Text == "Increment")
btnIncrement.Text = "Decrement";
else
btnIncrement.Text = "Increment";
}
}
}Thanks! that worked like a charm! I appreciate all of your help! hope to be able to help myself soon
Glad to help and that you are happy.
bye,
Mitja
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