lab6_2

lab6_1/lab6_3_CalebFontenot/Form1.cs

@@ -0,0 +1,74 @@
+namespace lab6_3_CalebFontenot
+{
+    public partial class Form1 : Form
+    {
+        public Form1()
+        {
+            InitializeComponent();
+        }
+        private void exitButton_Click(object sender, EventArgs e)
+        {
+            this.Close();
+        }
+        /*
+         * The GetFileName method gets a filename from the user and assigns it to the variable passed as an argument.
+        */
+        private void GetFileName(out string selectedfile)
+        {
+            if (openFile.ShowDialog() == DialogResult.OK)
+            {
+                selectedfile = openFile.FileName;
+            } else
+            {
+                selectedfile = "";
+            }
+        }
+        /*
+         * The GetCountries method accepts a filename as an argument. It opens the specified file and displays its contents in the countriesListBox control.
+         */
+        private void GetCountries(string filename)
+        {
+            try
+            {
+                // Declare a variable to hold a country name.
+                string countryName;
+
+                // Declare a StreamReader variable.
+                StreamReader inputFile;
+
+                // Open the file and get a StreamReader object.
+                inputFile = File.OpenText(filename);
+
+                // Clear anything currently in the ListBox.
+                countriesListBox.Items.Clear();
+
+                // Read the file's contents.
+                while (!inputFile.EndOfStream)
+                {
+                    // Get a country name.
+                    countryName = inputFile.ReadLine();
+                    // Add the country name to the ListBox.
+                    countriesListBox.Items.Add(countryName);
+                }
+                // Close the file.
+                inputFile.Close();
+            } catch (Exception ex)
+            {
+                // Display an error message.
+                MessageBox.Show(ex.Message);
+            }
+        }
+        private void getCountriesButton_Click(object sender, EventArgs e)
+        {
+            string filename; // To hold the filename
+
+            //Get the filename from the user.
+            GetFileName(out filename);
+
+            // Get the countries from the file.
+            GetCountries(filename);
+        }
+
+
+    }
+}