Develop Reference

How can we put this data into a DataTable or List<T> and then binded the grid to it

I built a winform project. This project open a mhtml file, then, he display the datagrid and remove the empty column.
i used much time "invoke" in my code. I would like to know how can i put this data into a DataTable or List and then binded the grid to it.
Here is the code :
{
public partial class Form1 : Form
{
private readonly string ConvertedFileName = "page.html";
private readonly List<string> ColumnsToSeparate = new List<string>() { "life limit", "interval" }; // Delete these columns
private readonly List<string> ExtraColumnsToAdd = new List<string>() { "Calendar", "Flight Hours", "Landing" }; // Add these columns
public Form1()
{
InitializeComponent();
this.Text = $"MhtmlTablesHunter v{Application.ProductVersion}";
}
//browse for specific file type , in this case its .mhtml
private void btnBrowse_Click(object sender, EventArgs e)
{
using (OpenFileDialog openFileDialog = new OpenFileDialog())
{
openFileDialog.Title = "Please choose the MHTML file";
openFileDialog.Filter = "MHTML files (*.mhtml)|*.mhtml;"; //the file type specified here
openFileDialog.RestoreDirectory = false;
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
textBoxSourceFile.Text = openFileDialog.FileName;
checkAndExtractTable();
}
}
}
private void checkAndExtractTable()
{
string sourcePath = textBoxSourceFile.Text;
if (!string.IsNullOrEmpty(sourcePath)) //check if the input file path is not empty
{
if (File.Exists(sourcePath)) //check if the input file path is exists
{
Task.Run(async () => await ExtractTable(sourcePath)); //run the extraction process in a thread for the UI to be more responsive
}
else
{
MessageBox.Show("Source file doesn't exist.");
}
}
else
{
MessageBox.Show("Please select the source file.");
}
}
//This part concern the headers, rows and columns
public async Task<string> ExtractTable(string sourcePath)
{
try
{
var doc = new HtmlAgilityPack.HtmlDocument();
var converter = new MimeConverter(); //converter used to convert mhtml file to html
if (File.Exists(ConvertedFileName)) //check if previously converted file is exist
{
File.Delete(ConvertedFileName); //delete the file
}
using (FileStream sourceStream = File.OpenRead(sourcePath))
{
using (FileStream destinationStream = File.Open("page.html", FileMode.Create))
{
await converter.Convert(sourceStream, destinationStream); //convert the file to html, it will be stored in the application folder
}
}
doc.Load(ConvertedFileName); //load the html
var tables = doc.DocumentNode.SelectNodes("//table"); //get all the tables
HtmlAgilityPack.HtmlNode table = null;
if (tables.Count > 0)
{
table = tables[tables.Count - 1]; //take the last table
}
if (table != null) //if the table exists
{
dataGridView1.Invoke((Action)delegate //we use delegate because we accessing the datagridview from a different thread
{
this.dataGridView1.Rows.Clear();
this.dataGridView1.Columns.Clear();
});
var rows = table.SelectNodes(".//tr"); //get all the rows
var nodes = rows[0].SelectNodes("th|td"); //get the header row values, first item will be the header row always
string LifeLimitColumnName = ColumnsToSeparate.Where(c => nodes.Any(n => n.InnerText.ToLower().Contains(c))).FirstOrDefault();
if (string.IsNullOrWhiteSpace(LifeLimitColumnName))
{
LifeLimitColumnName = "Someunknowncolumn";
}
List<string> headers = new List<string>();
for (int i = 0; i < nodes.Count; i++) // LOOP
{
headers.Add(nodes[i].InnerText);
if (!nodes[i].InnerText.ToLower().Contains(LifeLimitColumnName))
{
dataGridView1.Invoke((Action)delegate
{
dataGridView1.Columns.Add("", nodes[i].InnerText);
});
}
}
int indexOfLifeLimitColumn = headers.FindIndex(h => h.ToLower().Contains(LifeLimitColumnName));
if (indexOfLifeLimitColumn > -1)
{
foreach (var eh in ExtraColumnsToAdd)
{
dataGridView1.Invoke((Action)delegate
{
dataGridView1.Columns.Add("", eh); //add extra header to the datagridview
});
}
}
for (int i = 1; i < rows.Count; i++) ///loop through rest of the rows
{
var row = rows[i];
var nodes2 = row.SelectNodes("th|td"); //get all columns in the current row
List<string> values = new List<string>(); //list to store row values
for (int x = 0; x < nodes2.Count; x++)
{
//rowes.Cells[x].Value = nodes2[x].InnerText;
string cellText = nodes2[x].InnerText.Replace(" ", " ");
values.Add(cellText); //add the cell value in the list
}
// Factory for -> Calendar, Flight Hours, Landings
if (indexOfLifeLimitColumn > -1)
{
values.RemoveAt(indexOfLifeLimitColumn);
string lifeLimitValue = nodes2[indexOfLifeLimitColumn].InnerText.Replace(" ", " ");
string[] splittedValues = lifeLimitValue.Split(' ');
for (int y = 0; y < ExtraColumnsToAdd.Count; y++)
{
if (ExtraColumnsToAdd[y] == "Calendar")
{
string valueToAdd = string.Empty;
string[] times = new string[] { "Years", "Year", "Months", "Month", "Day", "Days" };
if (splittedValues.Any(s => times.Any(t => t == s)))
{
var timeFound = times.Where(t => splittedValues.Any(s => s == t)).FirstOrDefault();
int index = splittedValues.ToList().FindIndex(s => s.Equals(timeFound));
valueToAdd = $"{splittedValues[index - 1]} {timeFound}";
}
values.Add(valueToAdd);
}
else if (ExtraColumnsToAdd[y] == "Flight Hours")
{
string valueToAdd = string.Empty;
if (splittedValues.Any(s => s == "FH"))
{
int index = splittedValues.ToList().FindIndex(s => s.Equals("FH"));
valueToAdd = $"{splittedValues[index - 1]} FH";
}
values.Add(valueToAdd);
}
else
{
string valueToAdd = string.Empty;
if (splittedValues.Any(s => s == "LDG"))
{
int index = splittedValues.ToList().FindIndex(s => s.Equals("LDG"));
valueToAdd = $"{splittedValues[index - 1]} LDG";
}
values.Add(valueToAdd);
}
}
}
dataGridView1.Invoke((Action)delegate
{
this.dataGridView1.Rows.Add(values.ToArray()); //add the list as a row
});
}
//This code remove the empty row
dataGridView1.Invoke((Action)delegate
{
int[] rowDataCount = new int[dataGridView1.Columns.Count];
Array.Clear(rowDataCount, 0, rowDataCount.Length);
for (int row_i = 0; row_i < this.dataGridView1.RowCount; row_i++)
{
for (int col_i = 0; col_i < this.dataGridView1.ColumnCount; col_i++)
{
var cell = this.dataGridView1.Rows[row_i].Cells[col_i];
string cellText = cell.Value.ToString();
if (!String.IsNullOrWhiteSpace(cellText))
{
rowDataCount[col_i] += 1;
}
}
}
int removedCount = 0;
for (int index = 0; index < rowDataCount.Length; index++)
{
if (rowDataCount[index] == 0)
{
this.dataGridView1.Columns.RemoveAt(index - removedCount);
removedCount++;
}
}
});
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
return string.Empty;
}
private void textBoxSourceFile_TextChanged(object sender, EventArgs e)
{
}
}
}
Somebody can help me please? thanks a lot !

How To Find All Matches In Rich Text Box? [duplicate]

In my RichtextBox, if I have written as below.
This is my pen,
his pen is beautiful.
Now I search word "is" then
output would be as below.
All "is" should be highlighted.

What about:
static class Utility {
public static void HighlightText(this RichTextBox myRtb, string word, Color color) {
if (word == string.Empty)
return;
int s_start = myRtb.SelectionStart, startIndex = 0, index;
while((index = myRtb.Text.IndexOf(word, startIndex)) != -1) {
myRtb.Select(index, word.Length);
myRtb.SelectionColor = color;
startIndex = index + word.Length;
}
myRtb.SelectionStart = s_start;
myRtb.SelectionLength = 0;
myRtb.SelectionColor = Color.Black;
}
}

Looks like this would do it.
http://www.dotnetcurry.com/ShowArticle.aspx?ID=146
int start = 0;
int indexOfSearchText = 0;
private void btnFind_Click(object sender, EventArgs e)
{
int startindex = 0;
if(txtSearch.Text.Length > 0)
startindex = FindMyText(txtSearch.Text.Trim(), start, rtb.Text.Length);
// If string was found in the RichTextBox, highlight it
if (startindex >= 0)
{
// Set the highlight color as red
rtb.SelectionColor = Color.Red;
// Find the end index. End Index = number of characters in textbox
int endindex = txtSearch.Text.Length;
// Highlight the search string
rtb.Select(startindex, endindex);
// mark the start position after the position of
// last search string
start = startindex + endindex;
}
}
public int FindMyText(string txtToSearch, int searchStart, int searchEnd)
{
// Unselect the previously searched string
if (searchStart > 0 && searchEnd > 0 && indexOfSearchText >= 0)
{
rtb.Undo();
}
// Set the return value to -1 by default.
int retVal = -1;
// A valid starting index should be specified.
// if indexOfSearchText = -1, the end of search
if (searchStart >= 0 && indexOfSearchText >=0)
{
// A valid ending index
if (searchEnd > searchStart || searchEnd == -1)
{
// Find the position of search string in RichTextBox
indexOfSearchText = rtb.Find(txtToSearch, searchStart, searchEnd, RichTextBoxFinds.None);
// Determine whether the text was found in richTextBox1.
if (indexOfSearchText != -1)
{
// Return the index to the specified search text.
retVal = indexOfSearchText;
}
}
}
return retVal;
}
// Reset the richtextbox when user changes the search string
private void textBox1_TextChanged(object sender, EventArgs e)
{
start = 0;
indexOfSearchText = 0;
}

This will show all the searched criteria at the same time.
Using: 1 Textbox (to enter the text to search for) and 1 Button (to Run the Search).
Enter your search criteria inside the textbox and press search button.
// On Search Button Click: RichTextBox ("rtb") will display all the words inside the document
private void btn_Search_Click(object sender, EventArgs e)
{
try
{
if (rtb.Text != string.Empty)
{// if the ritchtextbox is not empty; highlight the search criteria
int index = 0;
String temp = rtb.Text;
rtb.Text = "";
rtb.Text = temp;
while (index < rtb.Text.LastIndexOf(txt_Search.Text))
{
rtb.Find(txt_Search.Text, index, rtb.TextLength, RichTextBoxFinds.None);
rtb.SelectionBackColor = Color.Yellow;
index = rtb.Text.IndexOf(txt_Search.Text, index) + 1;
rtb.Select();
}
}
}
catch (Exception ex) { MessageBox.Show(ex.Message, "Error"); }
}
}
}

If you only want to match the whole word you can use this, note that this ignores case and also the |s\b means that plurals get highlighted e.g. Cat matches cats but not caterpiller :
public static void HighlightText(RichTextBox myRtb, string word, Color color)
{
if (word == string.Empty)
return;
var reg = new Regex(#"\b" + word + #"(\b|s\b)",RegexOptions.IgnoreCase);
foreach (Match match in reg.Matches(myRtb.Text))
{
myRtb.Select(match.Index, match.Length);
myRtb.SelectionColor = color;
}
myRtb.SelectionLength = 0;
myRtb.SelectionColor = Color.Black;
}

private void button3_Click(object sender, EventArgs e)
{
if (textBox1.Text != "")
{
for (int i = 0; i < richTextBox1.TextLength; i++)
{
richTextBox1.Find(textBox1.Text, i, RichTextBoxFinds.None);
richTextBox1.SelectionBackColor = Color.Red;
}
}
else
{
for (int i = 0; i < richTextBox1.TextLength; i++)
{
richTextBox1.SelectAll();
richTextBox1.SelectionBackColor = Color.White;
}
}
}[lets make it!][1]

I would do it like that because all the other answers highlight the text, but doesnt change it back after you searched again.
Use the RichText Find Method to find the starting index for the searching word.
public int FindMyText(string searchText, int searchStart, int searchEnd)
{
int returnValue = -1;
if (searchText.Length > 0 && searchStart >= 0)
{
if (searchEnd > searchStart || searchEnd == -1)
{
int indexToText = richTextBox1.Find(searchText, searchStart, searchEnd, RichTextBoxFinds.MatchCase);
if (indexToText >= 0)
{
returnValue = indexToText;
}
}
}
return returnValue;
}
Use a Button or TextChangeListener and Search for your word.
private void button1_Click(object sender, EventArgs e)
{
// Select the first char in your Richtextbox
richTextBox1.SelectionStart = 0;
richTextBox1.SelectionLength = richTextBox1.TextLength;
// Select until the end
richTextBox1.SelectionColor = Color.Black;
// Make the Text Color black
//Use an Inputfield to add the searching word
var word = txtSearch.Text;
//verify the minimum length otherwise it may freeze if you dont have text inside
if (word.Length > 3)
{
int s_start = richTextBox1.SelectionStart, startIndex = 0, index;
while ((index = FindMyText(word, startIndex, richTextBox1.TextLength)) != -1)
{
// goes through all possible found words and color them blue (starting index to end)
richTextBox1.Select(index, word.Length);
richTextBox1.SelectionColor = Color.Blue;
startIndex = index + word.Length;
}
// Color everything between in color black to highlight only found words
richTextBox1.SelectionStart = startIndex;
richTextBox1.SelectionLength = 0;
richTextBox1.SelectionColor = Color.Black;
}
}
I would highly recommend to set a minimum word length to avoid freezing and high memory allocation.

C# How to implement dash "-" options in a command line argument?

My C# classes will create a GUI that takes in csv files and plot a line graph accordingly. Currently, my graphs are plotted and saved using the GUI file dialog.
What I am trying to do now is to read, plot and save the graph using command-line instead (NO GUI needed).
May I know how could I call my Read and Plot classes using the "-f" flag (file path, can have multiple csv file) and save the plotted graph using the "-o" flag (output file path, only 1 file produced)?
Thanks.

You can use this:
class Program:
static class Program
{
[System.Runtime.InteropServices.DllImport("kernel32.dll")] // ### Edit 3 ###
static extern bool AttachConsole(int dwProcessId); // ### Edit 3 ###
/// <summary>The main entry point for the application.</summary>
[STAThread]
static void Main(string[] args)
{
// redirect console output to parent process;
// must be before any calls to Console.WriteLine()
AttachConsole(-1);// ### Edit 3 ###
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
//program.exe -f c:\\desktop\\1.csv -o c:\\desktop\\1.png
var inputFile = new List<string>();
string outputFile = null;
if (args.Length > 0)
{
for (int i = 0; i < args.Length; i++)
{
string a = args[i].ToLower();
switch (a)
{
case "-f":
for (i = i + 1; i < args.Length ; i++)
{
string f = args[i]; if (f.StartsWith("-")) { i--; break; }
inputFile.Add(f); //get next arg as inputFile
}
break;
case "-o":
outputFile = args[++i]; //get next arg as outputFile
break;
}
}
if (inputFile.Count > 0 && outputFile != null)
{
var form = new Form2(); //specify your form class
form.showErrorsInConsole = true; // ### Edit 3 ###
//form.Visible = true;
form.DoReadFiles(inputFile.ToArray());
form.DoPlot();
form.SavePic(outputFile);
form.Dispose();
return;
}
}
//else
Application.Run(new Form2()); //show GUI
//MessageBox.Show("Args:\r\n" + s);
}
}
Form class (the form conatining your chart, in my code it is Form2):
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
private void Form2_Load(object sender, EventArgs e)
{
}
List<Read> rList = new List<Read>();
public bool showErrorsInConsole = false; //### Edit 3 ###
public void DoReadFiles(string[] fileNames)
{
try
{
rList.Clear();
foreach (String file in fileNames) //if ((myStream = ff.OpenFile()) != null)
{
Read r = new Read(file);
rList.Add(r);
}
}
catch (Exception err)
{
//Inform the user if we can't read the file
if (showErrorsInConsole) //### Edit 3 ###
Console.WriteLine("\r\n *** Error: " + err.Message); //### Edit 3 ###
else
MessageBox.Show(err.Message);
}
}
public void DoPlot(int indX = 0, int indY = 1)
{
Plot.Draw(chart, rList, indX, indY);
}
public void SavePic(string outputFile)
{
bool isPng = outputFile.EndsWith(".png", StringComparison.OrdinalIgnoreCase);
chart.SaveImage(outputFile, isPng ? ChartImageFormat.Png : ChartImageFormat.Jpeg);
}
void openToolStripMenuItem_Click(object sender, EventArgs e)
{
OpenFileDialog ff = new OpenFileDialog();
ff.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop); //"C:\\";
ff.Filter = "csv files (*.csv)|*.csv|All files (*.*)|*.*";
ff.Multiselect = true;
ff.FilterIndex = 1;
ff.RestoreDirectory = true;
if (ff.ShowDialog() == DialogResult.OK)
{
try
{
DoReadFiles(ff.FileNames);
//Populate the ComboBoxes
if (rList.Count > 0)
{
string[] header = rList[0].header; //header of first file
xBox.DataSource = header;
yBox.DataSource = header.Clone(); //without Clone the 2 comboboxes link together!
}
if (yBox.Items.Count > 1) yBox.SelectedIndex = 1; //select second item
}
catch (Exception err)
{
//Inform the user if we can't read the file
MessageBox.Show(err.Message);
}
}
}
private void button1_Click(object sender, EventArgs e)
{
DoPlot(xBox.SelectedIndex, yBox.SelectedIndex);
}
} //end class Form2
class Read:
public class Read
{
public int nLines { get; private set; }
public int nColumns { get; private set; }
public string[] header { get; private set; }
public float[,] data { get; private set; }
public string fileName { get; set; }
public string[] section { get; private set; }
public Read(string file)
{
string[] pieces;
fileName = Path.GetFileName(file);
string[] lines = File.ReadAllLines(file); // read all lines
if (lines == null || lines.Length < 2) return; //no data in file
header = lines[0].Split(','); //first line is header
nLines = lines.Length - 1; //first line is header
nColumns = header.Length;
//read the numerical data and section name from the file
data = new float[nLines, nColumns - 1]; // 1 less than nColumns as last col is sectionName
section = new string[nLines];
for (int i = 0; i < nLines; i++)
{
pieces = lines[i + 1].Split(','); // i(+1) is because first line is header
if (pieces.Length != nColumns) { MessageBox.Show("Invalid data at line " + (i + 2) + " of file " + fileName); return; }
for (int j = 0; j < nColumns - 1; j++)
{
float.TryParse(pieces[j], out data[i, j]); //data[i, j] = float.Parse(pieces[j]);
}
section[i] = pieces[nColumns - 1]; //last item
}
}
}
class Plot:
public class Plot
{
public static void Draw(Chart chart, List<Read> rList, int indX = 0, int indY = 1)
{
chart.Series.Clear(); //ensure that the chart is empty
chart.Legends.Clear();
Legend myLegend = chart.Legends.Add("myLegend");
myLegend.Title = "myTitle";
Color[] colors = new Color[] { Color.Black, Color.Blue, Color.Red, Color.Green, Color.Magenta, Color.DarkCyan, Color.Chocolate, Color.DarkMagenta };
var sectionColors = new Dictionary<string, int>();
bool separateSections = (rList.Count == 1); // #Edit: 4
int i = 0;
int iColor = -1, maxColor = -1;
foreach (Read rr in rList)
{
float[,] data = rr.data;
int nLines = rr.nLines;
int nColumns = rr.nColumns;
string[] header = rr.header;
chart.Series.Add("Series" + i);
chart.Series[i].ChartType = SeriesChartType.Line;
chart.Series[i].LegendText = rr.fileName; // #Edit: 4
if (separateSections) chart.Series[i].IsVisibleInLegend = false; // #Edit: 4
chart.ChartAreas[0].AxisX.LabelStyle.Format = "{F2}";
chart.ChartAreas[0].AxisX.Title = header[indX];
chart.ChartAreas[0].AxisY.Title = header[indY];
for (int j = 0; j < nLines; j++)
{
int k = chart.Series[i].Points.AddXY(data[j, indX], data[j, indY]);
if (separateSections) // #Edit: 4
{
string curSection = rr.section[j];
if (sectionColors.ContainsKey(curSection))
{
iColor = sectionColors[curSection];
}
else
{
maxColor++;
iColor = maxColor; sectionColors[curSection] = iColor;
}
chart.Series[i].Points[k].Color = colors[iColor];
}
}
i++; //series#
} //end foreach rr
//fill legend based on series
foreach (var x in sectionColors)
{
string section = x.Key;
iColor = x.Value;
myLegend.CustomItems.Add(colors[iColor], section); //new LegendItem()
}
}
}

If you are looking for something simple then you can just have a loop and get the values like this:
string f=null;
string o=null;
for (var i = 0; i < args.Length; i++)
{
if (args[i] == "-f") { f = args[i + 1]; }
else if (args[i] == "-o") { o = args[i + 1]; }
}
if (f != null)
{
}
if (o != null)
{
}

You can use command parser libraries. Command Line Parser ( http://commandline.codeplex.com/ ) is very easy to use.
[Option("f", "input", Required = true]
public string InputFile { get; set; }
[Option("o", "output", Required = true]
public string OutputFile { get; set; }

simple users edit in panel admin in c# by text file as data base

my code don't change anything in the file.
here's my code.
i try to find the name of the user by idx of line and than to change the needed change but the txt file stay as he was ,the method "read names" reading the names of all the people by split and its works.
read file method read all the lines to array of lines.
update arr is method that get the new lines array and replace it with the first one.
findidxbyusename find the idx of the line of the selected username
public string[] readNames()
{
string[] lines = System.IO.File.ReadAllLines(#"c:/aab/passwords.txt");
string tmpName;
string[] arr = new string[lines.Length];
for (int i = 0; i < lines.Length; i++)
{
tmpName = lines[i].Split(new[] { ",", " " }, StringSplitOptions.RemoveEmptyEntries)[0];
arr[i] = tmpName;
}
return arr;
}
public string[] readFile()
{
string[] lines = System.IO.File.ReadAllLines(#"c:/aab/passwords.txt");
return lines;
}
public void updateArr(string[] arr)
{
string content = "";
for (int i = 0; i < arr.Length; i++)
{
content += arr[i] + "\r\n";
}
File.WriteAllText("c:/aab/passwords.txt", content);
}
public int FindidxOfUser(string username)
{
string[] arr = readFile();
int idx = 0;
for (int i = 0; i < arr.Length; i++)
{
if (arr[i].Split(new[] { ",", " " }, StringSplitOptions.RemoveEmptyEntries)[0].Equals(username))
{
idx = i;
}
}
return idx;
}
private void usersEdit_Load(object sender, EventArgs e)
{
string[] arr = readNames();
for (int i = 0; i < arr.Length; i++)
{
comboBox2.Items.Add(arr[i]);
}
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
if (comboBox1.Text.Equals("User name"))
{
label2.Text = "New User Name :";
textBox1.Visible = true;
}
else
{
label2.Text = "New Password :";
textBox1.Visible = true;
}
}
private void button1_Click(object sender, EventArgs e)
{
string username = comboBox2.Text;
int idx = FindidxOfUser(username);
string[] arr = readFile();
if (comboBox1.Text.Equals("User name"))
{
arr[idx].Split(',')[0] = textBox1.Text;
updateArr(arr);
MessageBox.Show(comboBox1.Text + " Changed Succesfully!", "Succes!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
this.Hide();
}
else if (comboBox2.Text.Equals("Password"))
{
arr[idx].Split(',')[1] = textBox1.Text;
updateArr(arr);
MessageBox.Show(comboBox1.Text + " Changed Succesfully!", "Succes!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
this.Hide();
}
else
{
MessageBox.Show("Shlomi you are a dom ass", "Succes!", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
this.Hide();
}
}

You aren't actually assigning the value to the arr[idx] string with the following code:
arr[idx].Split(',')[0] = textBox1.Text
It is actually splitting the string which creates a string array, and then setting the first value to the textbox text. You aren't actually assigning a value to the arr[idx] string but instead the in-memory array of strings. It's a subtle difference but the reason your code isn't working.
You can change the line to the following to make it "stick":
string[] arrElements = arr[idx].Split(',');
arrElements[0] = textBox1.Text;
arr[idx] = String.Join(arrElements, ",");
updateArr(arr);
You would then need to do the same where you are setting the password. The key is that you are assigning the value to the actual arr[idx] this way rather than the temporary string array from the split.

c# Add Specific columns from a TEXT file to DataGridView

Hello Everyone,
As shown in the above image I want to add the decimal numbers column wise from a text file to datagrid control.
Following is my code snippet
List<string> str = new List<string>();
String st = "";
int k = 0;
string[] s ;
//Path to write contents to text file
string filename = #"E:\Vivek\contentcopy\clientlist.txt";
Form.CheckForIllegalCrossThreadCalls = false;
OpenFileDialog ofd = new OpenFileDialog();
ofd.FileName = "";
ofd.ShowDialog();
st = ofd.FileName;
if (string.IsNullOrEmpty(ofd.FileName))
return;
string Name = "", No1 = "",No2="";
string[] lines = File.ReadAllLines(st).Where(sw => !string.IsNullOrWhiteSpace(sw)).ToArray();
for (int i = 0; i < lines.Length; i++)
{
if (lines[i].Contains("VENTURA SECURITIES LIMITED (NSE F&O)")) continue;
if (lines[i].Contains("ALL EXCHANGES DERIVATIVES CLIENTWISE STATEMENT AS ON 16-05-2012")) continue;
if (lines[i].Contains("-------------------------------------------------------")) continue;
s = lines[i].Split(' ');
if (s[0] == "PARTY" || s[0] == "") continue;
int z;
Name = "";
for (z = 1; z < s.Length; z++)
{
if (s[z] == "") continue;
if (s[z].Contains('.'))
{
No1+=s[z]+" ";
No2 = No1 + " ";
}
else
{
Name += s[z];
str.Add(s[0]+" "+Name);
}
}
dataGridView1.Rows.Add();
dataGridView1.Rows[k].Cells[0].Value = s[0];
dataGridView1.Rows[k].Cells[1].Value = Name;
dataGridView1.Rows[k].Cells[2].Value = No1;
dataGridView1.Rows[k].Cells[3].Value = No2;
k++;
}
File.WriteAllLines(filename, str);
dataGridView1.ReadOnly = true;
}
The line No1=s[z] directly takes the last column values ie 46,123.19 and so on.I want to fetch each column from the text file and store it in a string variable and then assign it to the datagrid view
I hope my doubt is clear.If not please let me know

Here is the simplest Solution:
Add a DataGrid View to Form and add a Button:
private void button1_Click(object sender, EventArgs e)
{
ReadAndFileter();
}
private void ReadAndFileter()
{
try
{
using(System.IO.StreamReader reader = new System.IO.StreamReader("file.txt"))
{
string line;
string []array;
int rowcount= 0;
decimal number;
string[] separators = { "\t", " " };
int columnCount = 0;
while ((line = reader.ReadLine()) != null)
{
array = line.Split(separators, StringSplitOptions.RemoveEmptyEntries);
dataGridView1.Rows.Add();
foreach (string str in array)
{
if (Decimal.TryParse(str,out number))
{
dataGridView1.Rows[rowcount].Cells[columnCount++].Value = number;
}
}
rowcount++;
columnCount = 0;
}
}
}
catch (Exception ex)
{
}
}
The File Contents are:
Abc 20.122 69.33 0.00 693.25 0.00
def 36.20 96.20 1.15 69.56 8.96
And the final output:

Lets say, you have for lines in your test file, then u need to do following things:
Use StreamReader.ReadLine(), to read one line at time.
Spilt the line using split(' ') and store it in a array
Remove all the empty ones from the array
Now at index 2,3,4,5,6 of the resulting array will have the string equivalent of the decimal numbers.
Repeat this for each StreamReader.ReadLine()
Hope this will help.

Your problem is that you are overwriting No1 every time you read a string, which explains why you only get the last value. What you could do is either;
Append the string:
No1 += s[z] + " ";
Which will put all the values behind eachother, seperated by a whitespace.
Or, you could make a List<String> and add each value to the list, meaning you have them stored seperated:
List<String> values = new List<String>();
foreach(...)
{
if (s[z] == "") continue;
if (s[z].Contains('.'))
{
values.Add(s[z])
}
else
{
Name += s[z];
str.Add(s[0] + " " + Name);
}
}
You can thereafter loop through the list and add each value to a row. Considering your code piece;
int i = 2;
foreach(string value in values)
{
dataGridView1.Rows[k].Cells[i].Value = value;
i++;
}
This should work.
Hope this helps.

Here is edited code: but for future I must suggest to give a try at least..
private void ReadAndFileter1()
{
try
{
using (System.IO.StreamReader reader = new System.IO.StreamReader("file.txt"))
{
string line;
string[] array;
int rowcount = 0;
decimal number;
string[] separators = { "\t", " " };
int columnCount = 1;
string[] lines = File.ReadAllLines("file.txt");
for (int i = 0; i < lines.Length; i++)
{
if (lines[i].Contains("VENTURA SECURITIES LIMITED (NSE F&O)")) continue;
if (lines[i].Contains("ALL EXCHANGES DERIVATIVES CLIENTWISE STATEMENT AS ON 16-05-2012")) continue;
if (lines[i].Contains("-------------------------------------------------------")) continue;
array = lines[i].Split(separators, StringSplitOptions.RemoveEmptyEntries);
if (array[0] == "PARTY" || array[0] == "") continue;
dataGridView1.Rows.Add();
foreach (string str in array)
{
if (Decimal.TryParse(str, out number))
{
dataGridView1.Rows[rowcount].Cells[columnCount++].Value = number;
}
}
dataGridView1.Rows[rowcount].Cells[0].Value = array[0];
rowcount++;
columnCount = 1;
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}

Here it is:
static void Main(string[] args)
{
Decimal result;
string[] splitchar = new string[]{" "};
using(StreamReader reader = new StreamReader(#"C:\Users\Dell\Desktop\input.txt"))
{
while(!reader.EndOfStream)
{
string[] splittedArray = reader.ReadLine().Split(splitchar, StringSplitOptions.RemoveEmptyEntries).Where(x => Decimal.TryParse(x, out result)).ToArray();
// put your code here to get insert the values in datagrid
}
}
}