using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Data.SqlClient;
namespace ListWordsByFrequency
{
public partial class Form1 : Form
{
///
/// An enumeration of sorting options to be used.
///
private enum SortOrder
{
Ascending, // from small to big numbers or alphabetically.
Descending // from big to small number or reversed alphabetical order
}
// This will discard digits
private static char[] delimiters_no_digits = new char[] {
'{', '}', '(', ')', '[', ']', '>', '<','-', '_', '=', '+',
'|', '\\', ':', ';', '"', ',', '.', '/', '?', '~', '!',
'@', '#', '$', '%', '^', '&', '*', ' ', '\r', '\n', '\t',
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };
public Form1()
{
InitializeComponent();
}
///
/// Tokenizes a text into an array of words, using the improved
/// tokenizer with the discard-digit option.
///
/// the text to tokenize
private string[] Tokenize(string text)
{
string[] tokens = text.Split(delimiters_no_digits, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; i < tokens.Length; i++)
{
string token = tokens[i];
// Change token only when it starts and/or ends with "'" and
// it has at least 2 characters.
if (token.Length > 1)
{
if (token.StartsWith("'") && token.EndsWith("'"))
tokens[i] = token.Substring(1, token.Length - 2); // remove the starting and ending "'"
else if (token.StartsWith("'"))
tokens[i] = token.Substring(1); // remove the starting "'"
else if (token.EndsWith("'"))
tokens[i] = token.Substring(0, token.Length - 1); // remove the last "'"
}
}
return tokens;
}
///
/// Make a string-integer dictionary out of an array of words.
///
/// the words out of which to make the dictionary
/// a string-integer dictionary
private Dictionary ToStrIntDict(string[] words)
{
Dictionary dict = new Dictionary();
foreach (string word in words)
{
// if the word is in the dictionary, increment its freq.
if (dict.ContainsKey(word))
{
dict[word]++;
}
// if not, add it to the dictionary and set its freq = 1
else
{
dict.Add(word, 1);
}
}
return dict;
}
///
/// Sort a string-int dictionary by its entries' values.
///
/// a string-int dictionary to sort
/// one of the two enumerations: Ascening and Descending
/// a string-integer dictionary sorted by integer values
private Dictionary ListWordsByFreq(Dictionary strIntDict, SortOrder sortOrder)
{
// Copy keys and values to two arrays
string[] words = new string[strIntDict.Keys.Count];
strIntDict.Keys.CopyTo(words, 0);
int[] freqs = new int[strIntDict.Values.Count];
strIntDict.Values.CopyTo(freqs, 0);
//Sort by freqs: it sorts the freqs array, but it also rearranges
//the words array's elements accordingly (not sorting)
Array.Sort(freqs, words);
// If sort order is descending, reverse the sorted arrays.
if (sortOrder == SortOrder.Descending)
{
//reverse both arrays
Array.Reverse(freqs);
Array.Reverse(words);
}
//Copy freqs and words to a new Dictionary
Dictionary dictByFreq = new Dictionary();
for (int i = 0; i < freqs.Length; i++)
{
dictByFreq.Add(words[i], freqs[i]);
}
return dictByFreq;
}
// Load file to input box
private void btnLoadFile_Click(object sender, EventArgs e)
{
OpenFileDialog openDlg = new OpenFileDialog();
if (openDlg.ShowDialog() == DialogResult.OK)
{
textBoxInput.Text = File.ReadAllText(openDlg.FileName);
}
}
// Process input box text and display result in output box
private void btnExecute_Click(object sender, EventArgs e)
{
if (textBoxInput.Text != string.Empty)
{
// Split text into array of words
string[] words = Tokenize(textBoxInput.Text);
if (words.Length > 0)
{
// Make a string-int dictionary out of the array of words
Dictionary dict = ToStrIntDict(words);
// Set SortOrder based on user's choice.
//
// The follow code is the compact form of:
// if radioButtonAscending is Checked, sortOrder = SortOrder.Ascending
// else sortOrder = SortOrder.Descending
//
SortOrder sortOrder = radioButtonAscending.Checked ? SortOrder.Ascending : SortOrder.Descending;
// Sort dict by values
dict = ListWordsByFreq(dict, sortOrder);
// Dump dict entries to a StrinbBuilder for efficiency.
StringBuilder resultSb = new StringBuilder(dict.Count * 9);
foreach (KeyValuePair entry in dict)
resultSb.AppendLine(string.Format("{0} [{1}]", entry.Key, entry.Value));
// Put the content of the StringBuilder in the Output box
textBoxOutput.Text = resultSb.ToString();
try
{
// SqlConnection conn = new SqlConnection(@"Data Source=samkelo.database.windows.net;Initial Catalog=Samkelo;Persist Security Info=True;User ID=****;Password=*****");
SqlConnection conn = new SqlConnection(@"Data Source=####-PC\SQLEXPRESS;Initial Catalog=Assessmenet;Integrated Security=True");
SqlCommand cmd = new SqlCommand("INSERT INTO WordCount(Word,Count)" + "INSERT
//here is my problem I want to insert this values separetely from a database table word to Word field and a number to count field?
INTO WordCount(Word,Count)VALUES ('{0},entry.Key', '[{1}],entry.Value')", conn);
conn.Open();
cmd.ExecuteNonQuery();
MessageBox.Show("Connection Succeful");
}
catch (SqlException ex)
{
MessageBox.Show("There is an Error" + ex);
}
finally
{
// conn.Close();
MessageBox.Show("Connection Closed");
}
}
}
}
Midhun TpPosted Aug 14, 2017, 12:52 AM