i'm rather new and am trying to create a C# program that retrieves post from Facebook using FB API.
I have a word count feature which checks against a negative word dictionary.
This means that it would display the negative word along with its frequency occurrence.
The problem i'm facing now is that, i want to display the posts that contains this negative words. However, if the negative word exists 3 times in the post, the post would appear thrice. How do i solve this problem?
Below is my code:
(For designer)
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.IO;
namespace empTRUST
{
public partial class PostAnalysis : Form
{
DBStatusDL ad;
string target_fbid;
public PostAnalysis(string target_fbid)
{
InitializeComponent();
this.target_fbid = target_fbid;
ad = new DBStatusDL();
}
private void button_Displayposts_Click(object sender, EventArgs e)
{
int i = 1;
var dir = new DirectoryInfo(Application.StartupPath + "\\Dictionary"); //Load the dictionary from debug folder
var ed = new matchingWordsWithPosts();
var rows = ad.LoadStatus(target_fbid); //Call the load status function based on fb_id
foreach (FileInfo file in dir.GetFiles()) //For loop, to loop through files
{
var dict = File.ReadAllLines(dir.FullName + "\\" + file);
foreach (var row in rows)
{
List<DataRow> words = ed.countWordsInStatus(row, dict); // Retrieves word dictionary returned from function
foreach (var word in words)
{
var item = new ListViewItem(new[] { i.ToString() ,word["Status_message"].ToString(), word["Status_time"].ToString() });
listViewPosts.Items.Add(item);
i++;
}
}
}
}
private void button_Back_Click(object sender, EventArgs e)
{
this.Close();
var abc = new AnalysisPage(target_fbid);
abc.Show();
}
}
}
(For class)
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Data;
namespace empTRUST
{
class matchingWordsWithPosts
{
public List<DataRow> countWordsInStatus(DataRow status, string[] dictArray)
{
List<DataRow> statusList = new List<DataRow>();
var words = new Dictionary<string, int>(StringComparer.CurrentCultureIgnoreCase); // local word dictionary is created here
foreach (var dictEntry in dictArray)
{
var wordPattern = new Regex(#"\w+");
string smallDictEntry = dictEntry.ToLower();
foreach (Match match in wordPattern.Matches(status["Status_message"].ToString()))
{
if (match.ToString() == smallDictEntry)
{
statusList.Add(status);
}
}
}
return statusList; // returns local word dictionary to receiving end
}
}
}
Because you didn't provide the countWordsInStatus() function, I can't know if that's the problem. However, it looks like the problem is that that function continues going through a post even if it has already matched one such word. To fix this, you could put continue; (or perhaps a break;, depending on the code you're using) after adding a post to the list you're returning. This would have the loop skip to the next post, and make sure it doesn't continue counting words in the post that has already had a match.
If you post that function, it should be much easier to understand the issue.
After a word is matched and you process the post exit the loop.
Related
I have many files in folder. and whenever there is any update in any file I Receive an event for that in my windows service application.
And I am looking for something by which I can validate the file with specific pattern. If it matches then only that file should be processed or else it should be ignored.
Something like this
if(File.Matches("genprice*.xml"))
{
DoSomething();
}
genprice20212604.xml
genprice20212704.xml
price20212604.xml
genprice20212704.txt
From above only #1 and #2 should be processed others should be ignored.
Your can try with regular expressions:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Text.RegularExpressions;
namespace ConsoleAppRegex
{
class Program
{
static void Main(string[] args)
{
string[] fileNames = new string[] { "genprice20212604.xml",
"genprice20212704.xml",
"price20212604.xml",
"genprice20212704.txt"};
Regex re = new Regex(#"genprice[^\.]*.xml");
foreach (string fileName in fileNames)
{
if (re.Match(fileName).Success)
{
Console.WriteLine(fileName);
}
}
Console.ReadLine();
}
}
}
I suggest to use Regex:
using System.Text.RegularExpressions;
using System.IO;
var reg = new Regex(#"genprice\d{8}$");
var fileNamesFromFolder = Direcotory.GetFiles(" #Folder´s path ", "*.xml")
.Where(path => reg.IsMatch(Path.GetFileNameWithoutExtension(path)))
.Select(Folder=>
Path.GetFileNameWithoutExtension(Folder));
foreach (var file in fileNamesFromFolder )
{
//Do something...
}
With a csv file looking like this:
usernames,passwords
us1,ps1
us2,ps2
I would like all usernames in one array an all passwords in another.
Current code:
(Trying to make a login system that interacts with a database.)
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Diagnostics;
using System.Globalization;
namespace Login
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
string[] usernames = new string[] { };
string[] passwords = new string[] { };
private void btnLogin_Click(object sender, EventArgs e)
{
lblLoginSucsess.Text = "";
for (int i = 0; i < Math.Min(usernames.Length, passwords.Length); i++)
{
if ((usernames[i].ToLower() == txtUsnme.Text.ToLower()) && (passwords[i].ToLower() == txtPass.Text.ToLower()))
{
lblLoginSucsess.Text = $"Welcome, {txtUsnme.Text}.";
// run calc
Process.Start("C:/Users/finch/AppData/Roaming/Microsoft/Windows/Start Menu/Programs/HP Inc/Calculator.appref-ms");
}
}
}
}
}
If you can help, Thanks.
Instead of having two separate list, it would be better if you had a Dictionary of UserName/Password. You could read CSV and convert to dictionary by
var dataLines = File.ReadAllLines(filePath);
var userPassDictionary = dataLines.Skip(1)
.Select(x=> x.Split(new[]{','}, StringSplitOptions.RemoveEmptyEntries))
.ToDictionary(x=> x.First().ToLower(),v=>v.Last());
Now you could access validate the user as
if (userPassDictionary[txtUsnme.Text.ToLower()] == txtPass.Text)
{
}
Note
It was also curious to note that your were comparing password case-insensitevely. While it might depend on the business requirement, most often than not, passwords are case-sensitive. Wanted to highlight it, just in case, it was by accident.
I'm trying to make an application that reads two text files, takes the two, and merges them into one single list. Then take said list, and compare it to another list (from another text file). The problem is that no matter what I do my program always goes to else (see the line where it says
if (BoysAndGirlsList.Contains(NameEntered) && MostPopularNamesList.Contains(NameEntered))
). I don't know why it does this.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Linq; //Needed for concat.
namespace Name_Search
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
string BoyNames = System.IO.File.ReadAllText(#"D:\Google Drive\Course Work\C# Intro\Student Sample Programs\Chap07\BoyNames.txt"); //Reads BoyNames txt file.
List<string> BoyNamesList = BoyNames.Split('\n').ToList(); //Converts it to a list.
//BoyNamesList.ForEach(Console.WriteLine); <-Testing to make sure that the list is working properly.
string GirlNames = System.IO.File.ReadAllText(#"D:\Google Drive\Course Work\C# Intro\Student Sample Programs\Chap07\GirlNames.txt"); //Reads GirlNames txt file.
List<string> GirlNamesList = GirlNames.Split('\n').ToList(); //Converts it to a list.
List<string> BoysAndGirlsList;
BoysAndGirlsList = BoyNamesList.Concat(GirlNamesList).ToList(); //Adds the lists together.
//BoysAndGirlsList.ForEach(Console.WriteLine); <-Again just testing that the list is working.
string MostPopularNames = System.IO.File.ReadAllText(#"D:\Google Drive\Course Work\C# Intro\Student Sample Programs\Chap07\MostPopularBoyAndGirlNames.txt"); //Reads MostPopularBoyAndGirlNames txt file. Compiled from http://goo.gl/1crLcY.)
List<string> MostPopularNamesList = MostPopularNames.Split('\n').ToList(); //Converts it to a list.
string NameEntered = nameInput.Text;
if (BoysAndGirlsList.Contains(NameEntered) && MostPopularNamesList.Contains(NameEntered))
{
MessageBox.Show("This name is one the most popular names!");
}
else
{
MessageBox.Show("This is not one of the most popular names.");
}
}
}
}
What is not working properly here? I've tried putting in a break, and when I did the values looked fine to me.
The issue is probably solved as mentioned by the comments, where redundant spaces in the 'names' causes them to compare unequally. You also have an issue when you want to compare names in a case-insensitive manner.
The first issue can be solved by trimming whitespace from each name:
BoysAndGirlsList = BoysAndGirlsList.Select(name => name.Trim()).ToList();
MostPopularNamesList = MostPopularNamesList.Select(name => name.Trim()).ToList();
The second issue can be solved by using an invariant case comparer:
if (BoysAndGirlsList.Contains(NameEntered, StringComparer.InvariantCultureIgnoreCase) &&
MostPopularNamesList.Contains(NameEntered, StringComparer.InvariantCultureIgnoreCase))
Below is what I use to log into the database using linq and then I use C# expressions to gather the data I want. The next thing I want to do is convert this data into an XML any Ideas?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Data;
namespace VcacManagementTools.BuildProfiles
{
public static class BuildProfileTools
{
public static ICollection<string> GetExistingBuildProfileNames(string repositoryHostname,
string repositoryUsername,
string repositoryPassword)
{
var url = string.Format("https://{0}/repository/data/ManagementModelEntiti.svc", repositoryHostname);
var managementModelClient = new DynamicOps.ManagementModel.ManagementModelEntities(new Uri(url))
{
Credentials = new NetworkCredential(repositoryUsername, repositoryPassword)
};
return managementModelClient
.GlobalProfiles
.Select(gp => gp.ProfileName)
.ToList();
The Output I recieve is a list of values
If I understood you well, you want to take the data (the list contains the data from the database) and put it in XML file. I used variables to show where to put each data.
In case you have an XML:
try
{
doc = XDocument.Load(spath, LoadOptions.SetBaseUri);
foreach(String propertyData in dataList)
{
XElement root = new XElement(ElementName);
root.Add(new XElement("property1", propertyData));
doc.Element(MainElement).Add(root);
}
doc.Save(spath);
}
catch (Exception)
{
}
The question that I have is regarding converting the process of reading lines from a text file into an array instead of just reading it.
The error in my codes appear at string[] lines = File.ReadLines("c:\\file.txt"); with cannot implicitly convert....
Can someone please advise on the codes to save the results in an array format? I've placed the ReadAllLines code which is able to save the results in an array too. Thanks!
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.IO;
namespace Testing
{
class Analysis
{
static void Main()
{
string[] lines = File.ReadLines("c:\\file.txt");
foreach (string r in lines)
{
Console.WriteLine("-- {0}", r);
}
// Keep the console window open in debug mode.
Console.WriteLine("Press any key to exit.");
System.Console.ReadKey();
}
}
}
ReadAllLines Codes:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.IO;
namespace Testing
{
class ReadFromFile
{
static void Main()
{
string[] lines = System.IO.File.ReadAllLines
(#"C:\Users\Public\TestFolder\WriteLines2.txt");
System.Console.WriteLine("Contents of writeLines2.txt =:");
foreach (string line in lines)
{
Console.WriteLine("\t" + line);
}
// Keep the console window open in debug mode.
Console.WriteLine("Press any key to exit.");
System.Console.ReadKey();
}
}
}
File.ReadLines() returns an object of type System.Collections.Generic.IEnumerable<String>
File.ReadAllLines() returns an array of strings.
If you want to use an array of strings you need to call the correct function.
You could use Jim solution, just use ReadAllLines() or you could change your return type.
This would also work:
System.Collections.Generic.IEnumerable<String> lines = File.ReadLines("c:\\file.txt");
You can use any generic collection which implements IEnumerable, such as IList<String>.
string[] lines = File.ReadLines("c:\\file.txt").ToArray();
Although one wonders why you'll want to do that when ReadAllLines works just fine.
Or perhaps you just want to enumerate with the return value of File.ReadLines:
var lines = File.ReadLines("c:\\file.txt");
foreach (var line in lines)
{
Console.WriteLine("\t" + line);
}
Change string[] lines = File.ReadLines("c:\\file.txt"); to IEnumerable<string> lines = File.ReadLines("c:\\file.txt");
The rest of your code should work fine.
using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
namespace FileReader
{
class Program
{
static void Main(string[] args)
{
var lines = File.ReadAllLines("D:/Text.txt").ToList();
if(lines != null && lines.Count > 0)
{
foreach(var line in lines)
{
Console.WriteLine(line);
}
}
Console.ReadKey();
}
}
}