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Form1.cs
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Form1.cs
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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 Samples.ApplyF
{
public partial class Applyf : Form
{
delegate double DelegateToApply(double[] d);
static double GetOperation(double[] data, DelegateToApply del)
{
return del(data);
}
public Applyf()
{
InitializeComponent();
}
private void quitToolStripMenuItem_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void btnApply_Click(object sender, EventArgs e)
{
outputLabel.Text = string.Empty;
if(string.IsNullOrEmpty(DataArray.Text))
MessageBox.Show("Data cannot be empty","Apply functions",MessageBoxButtons.OK,MessageBoxIcon.Error);
else
{
string[] input = DataArray.Text.Trim().Split(',');
double[] data = new double[input.Length];
for (int i = 0; i < input.Length;i++)
{
try
{
data[i] = Convert.ToDouble(input[i]);
}
catch (FormatException)
{
MessageBox.Show(input[i] + " is not a number", "Apply functions", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
if (rbAvg.Checked)
outputLabel.Text = "Result: " + GetOperation(data, Operations.Avg).ToString("F");
if (rbMax.Checked)
outputLabel.Text = "Result: " + GetOperation(data, Operations.Max).ToString();
if (rbMin.Checked)
outputLabel.Text = "Result: " + GetOperation(data, Operations.Min).ToString();
if (rbSum.Checked)
outputLabel.Text = "Result: " + GetOperation(data, Operations.Sum).ToString();
}
}
private void DataArray_TextChanged(object sender, EventArgs e)
{
lbTotal.Text = string.Empty;
string[] input = DataArray.Text.Trim().Split(',');
lbTotal.Text = "Total of array elements: " + input.Length.ToString();
}
}
}