How To Read Textfile From Particular Line In C#
Nov 30, 2010Can u tell me how to read textfile from 15line or from particular line that means i have to ignore first 15 lines of textfile and i should start from 16th line.
View 2 RepliesCan u tell me how to read textfile from 15line or from particular line that means i have to ignore first 15 lines of textfile and i should start from 16th line.
View 2 Repliesi am writing these 3 lines to a text file storing ID nubmers (each on thier own Line)
TableID1: 10
TableID2: 1
TableID3: 8
To textfile "TableID.txt"
Using StreamReader I would like to read the ID's back to cs for use else where
How would i do this ?
StreamReader Read_SQLConfig = new StreamReader("TableID.txt");
I am trying to read a multilined textBox line by line into a List<String> but with the code below the compiler says that "'System.Environment' does not contain a definition for 'Newline'
[Code]....
I m uploading a file and I want to read that file line by line. I have 200 users accessing that application at one time and I have more than 300 lines in a text file to read. If I do it in a normal code, it may crash. So, what are the ways to do this application? Web services or COM+. which is the better way? I dont want my application to crash at any point.
View 5 Repliesi am using below code for reading the csv fie..by using this code, it's reading the csv file first line onwards, but i want to read the csv file from 2nd line onwards
below am displaying the code
[Code]....
How do I just get the first line of a multiline textbox? Either that or delete everything after "<br/>"? I tried something like this but it doesn't work:
MyTextBox.Text.Replace("<br/> + '%'", "")
I am trying to read and write text file like that, writing
StreamWriter wr = new StreamWriter(Server.MapPath("aa.txt")); wr.Write("aaaa" + System.Environment.NewLine); wr.Write("bbbb" + System.Environment.NewLine); wr.Write("bbbb" + System.Environment.NewLine); wr.Close();
Reading
string line11 = ""; using (StreamReader sr = new StreamReader(Server.MapPath("aa.txt"))) { while ((line11 = sr.ReadLine()) != null) { TextBox1.Text += line11 + "
"); } }
and want to display
aaaa
bbbb
bbbb in TextBox1.Text
Writing is not problem , The problem is reading, to display line by line on textbox , we use "
" in normal windows form c sharp , but in asp it is not working. also is there anything instead of System.Environment.NewLine when writing. And is there any converter between NORMAL WINDOWS FORM csharp to ASP .NET C SHARP.
I have a process where I ftp a textfile to a webserver and then process the file (load it into a database). The textfile is then deleted. How do I protect the textfile from being viewed/ accessed by a user while it exists? I'm using ASP.Net 2.0
View 3 RepliesI have a text file that I want to read line by line from into a string variable. On each click of a button I want to read the next line.Solutions I find reading from a textfile do it all at once though (in a while loop), displaying all lines on screen, but I don't want that. I want to fill one variable with the subsequent lines in the textfile, one at a time, everytime by a click on a button.How can I 'loop' through a textfile in this manner, without 'file already in use' errors etc.?
View 1 RepliesI tried to pass datetime from a textfile to the form and using it to get the classes from web service.
the site has 4 countries. based on the country value from session , i load the text file.
It works perfectly for 3 countries without any issues. but not for the fourth country.
My whole project is about reading data from textfile(the readings is separated by delimiters) and plotting out the graph. But somehow i am meetnig some problems as i think my method is wrong... It's something like this..what should i do?
Private Sub CreateChart()
'Create some dummy data
'Dim random As New Random()
'For pointIndex As Integer = 0 To 9
' Chart1.Series("Series1").Points.AddY(random.[Next](20, 100))
Dim h, g As String
Try
Dim lc As New StreamReader("C:Tempdatalogger" & date1.ToString & "int_ana_" + date1.ToString + ".txt")
Dim ff As String '= Label5.Text & ":00"
'Dim sr As String = lc.ReadToEnd
Dim line6 = lc.ReadLine
Do While Not line6 Is Nothing 'loop until end of file
If IsNumeric(line6.Chars(0)) Then
Dim fields5() = Split(line6, ";")
'Dim fields5() = Split(s.Substring(sr.IndexOf(ff)), ";")
h += fields5(0) + vbCr
g += fields5(3) + vbCr
End If
line6 = lc.ReadLine
Loop
Catch ex As Exception
End Try
For pointIndex As Double = 0.0 To 2.0
Chart1.Series("Series1").Points.AddXY(h, g)
Next
'line display chart
Chart1.Series("Series1").ChartType = SeriesChartType.Line
'set the bar width
Chart1.Series("Series1")("PointWidth") = "0.1"
'Show Data points labels
Chart1.Series("Series1").IsValueShownAsLabel = True
'Set data points label style
Chart1.Series("Series1")("BarLabelStyle") = "Center"
'Draw Chart as 3D Cyclinder
Chart1.Series("Series1")("DrawingStyle") = "Cylinder"
End Sub '****End of Graph
I am using a textbox to populate mySQL database. My problem is when I recall the text it displays without line brakes or line spacing, inserted in the input textbox. I have tried all the field types i.e. Text, Small, Medium Text and Chars. I have tried gridview, repeater and datalist all displaying continuous text without line brakes.
View 4 RepliesIf I have a text file like:
123, joe blow, USA
Where the first values represent:
USERID, NAME, COUNTRY
If my file has 5000 rows, could I update a particular row somehow using C#?
I have a gridview which i want to update line by line.Its for confirmed users.SO i have a list of users and they are confirmed by clicking the checkbox and updating the value in the database.But how can i find the checkbox on the gridview and get the value. Ive tried the following code but no joy
[Code]....
If I have a variable that contains text information (say taken from a textarea), how can I read the text content held in a string variable line by line?
The text entered in the text area will have (enter key) to separate the line.
I want to delete every row that doesn't contain "." in my textfile. I have tried different ways but i can't get it to work!This is my code!
[Code]....
My textfile can look like this:
110158;778.59;;
110174;207.87;;
110208;;;
110219;;;
110279;;;
110283;;;
110514;95.33;;
110543;392.37;;
110550;253.38;;
This is what i wan't it to look like:
110158;778.59;;
110174;207.87;;
110514;95.33;;
110543;392.37;;
110550;253.38;;
I insert a text box, change the parameters to multi line and then pass the string to sql. Users insert comments etc, using line breaks, however because I just pass this as a string the line breaks are not there when they view the text box after input. Example: Here is a well formatted comment. as I typed in the text box today. Inserted in to sql as a string, returns this on select:
Here is a well formatted comment.as I typed in the text boxtoday. How do I insert the line breaks in the string from a textbox?
I am developing SMS portal in asp.net c# where people register & send sms.I M Using multiline asp:textbox for input message. i want to break line where user hit enter/new line in textbox. if there any textboxeditor which support only <br/>.
View 2 Replieshow do I loop through, line by line, the contexts from a textarea in asp.net?
streamreader and stream both don't accept a string.
i have insert a text in a textbox with the textmode = multiline.. when i display out the data, i wan the data will be display with the break line. for example, my input is like that
18.0 million effective pixels
Auto lighting optimizer
Full HD video 1920 x 1080
the text is line by line. but when i display out the data i have inserted through textbox it cannot display line by line in the front page.
How to navigate on compatible websites offline and synchronize when going back online. how to do it ?
View 2 RepliesI have to desing line chart graph in .rdlc report, can you please help me, i have decimal values on Y-Axis and date time values on X-Axis , i have two series of product, according to product value during specific time i need to display line graph for each product.please do needfull to me.
View 2 Repliesi can't debug the code line by line code, i have break point in form load event, but it skipthe breakpoint , can't able to debug.
View 6 RepliesRead Receipt And Read Outlook Inbox for the same
View 2 Repliesave never used ajax.... I'm currently putting together a little web app that basically calls a program on the server itself (a command line tool) and displays the output to the web page.When the command line tool is run from the command line, it outputs status messages as it does it's thing... as it is now, my page just displays all the output when it's done. What I would like to do is show each line of output on the web page as they happen, just like when run from the command line. I'm guessing ajax is what I need... can anyone point me in the right direction for this specific scenario (user clicks button, output streams to web page as it happens without full page post backs)... a good example would be how ping.exe displays it's output on the command line
View 2 Replies