I want to draw string in multiple lines and and I want to know how many lines given string will take. I am using following method.
[Code]...
I have a string STR="CYHZ 262338Z 2700/2724 27012G22KT P6SM BKN040 TEMPO 2700/2710 5SM -SHSN BKN015 BECMG 2702/2704 28015G25KT FM271000 28018G28KT P6SM BKN040 BECMG 2722/2724 27012KT RMK NXT FCST BY 270300Z"
I want to put the new line characher before these words in the string(TEMPO, BECMG, FM, RMK) so that the output string look like this
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I have a large string variable that I'd like to split into multiple line for readability. What is the syntax to accomplish this?
EXAMPLE: Dim str As String = "asfrgasdfgadsfgadfgdfgasdfgdasfgdfgsdghsdghsh"
EXAMPLE: Dim str AS String = "asfrgasdfgadsfgadfgdfgasdfgd" _
"asfgdfgsdghsdghsh"
Something like that is what I'm trying to accomplish.
I have a *.txt file which contains instructions and data, with its own comments (preceded by ! ), blank lines, and each instruction begining on a new line, but occassionally using two lines. Each instruction consists of several feilds seperated by a TAB. Finally each instruction ends in a comma. Only a few different instructions are there (10 different ones) but there are many of each. Spanning a good 2500 lines. Comments and blank lines are obviously of no interest to me. I merely need to read the instructions and the data that follows it.
Now, I have successfully used 'System.IO.StreamReader.ReadLine' to go through it line by line, picking out lines begining with certain strings (first 3 characters of a known instruction). All good, I can 'lift' out the lines of interest and store them, for them to be split up later (seperating their fields into instruction, data, etc..) and then into an array.
The problem is, since some of the data fields in these instructions are so long, it spans two lines, before it ends with a comma. Using the above method, I end up with two array entries for a single instruction, since I have stored individual lines rather than a complete instruction. The only similar situation I can tihnk of to explain this, is to pick out sentences in text, and store each one in a string. Of course these end with a period (full stop) but span two or more lines.
I am hesitant to post an example, since its formatting is rather strange, but it is generated that way from 3rd party software, so I cannot change that for my software application.Perhaps there is no 'graceful' way of doing this, meaning I would have to find a way of 'adding' the second line of the instruction, to the string of the first line. Or perhaps reading each line character by character, literally storing every number/letter until I reach a comma.
1. i added a datagrid at runtime on a form. i want to bind a datasource to the datagrid in a button's click event handler, but the datagrid doesn't seem to be visible anywhere else outside the form load event where it is declared. how can i find the datagrid control?
2. and another beginner question.. how to i declare a string that spans multipe lines? i tried with the + operator like in c#, but it doesn't work.
how to count the lines in textbox1.text (with multiplelines). I don't need to count each character. I only need to count each line from top to bottom in textbox1.text (multiplelines) and I will use Label1 to display the numbers.
example:
1-pauljaones
2-tommyperrry
3-marktoms
4-Jonessmith
5-paulwhite
Obviously this is 5 lines and that's what I need to count.
txtBeautified.Text.Remove(txtBeautified.Text.LastIndexOf(","), 1)
i want to find the last index of "," in my text and then remove that , but it is not working. Any Idea? txtBeautified is a richtextbox.
asked other questions before this and they no longer need attencion.I am having trouble counting only lines with text in a string, and i need to see if there is a match between one string and a line in another multiline string.
View 10 Repliesi have been working on a project that requires to count the lines from a string like this is my code :
' On The Top
dim readdata as string
' in the func
dim read as new system.io.StreamReader(readstr)
readdata = Read.ReadToEnd
then i want that from every line in that file it executes like Shell(Line)
Hi.
Im using this little function to search for text within some downloaded HTML source:
Public Function GetStringBetween(ByVal InputText As String, _
ByVal starttext As String, _
ByVal endtext As String)
Dim lnTextStart As Long
Dim lnTextEnd As Long
lnTextStart = InStr(StartPosition, InputText, starttext, vbTextCompare) + Len(starttext)
lnTextEnd = InStr(lnTextStart, InputText, endtext, vbTextCompare)
If lnTextStart >= (StartPosition + Len(starttext)) And lnTextEnd > lnTextStart Then
GetStringBetween = Mid$(InputText, lnTextStart, lnTextEnd - lnTextStart)
Else
GetStringBetween = "ERROR"
End If
End Function
It works great, but i need to be able to search for something that spans over 2 lines. E.g.
Sam works in a shop from the hours
of 09:00 to 15:00
I want to search for the words "hours of" - but because they are on seperate lines, it cannot find it.
I have tried "hours" & Environment.NewLine & "of" - and other variants of envirmonment.newline (knowing they all return the same value, but, hey, you gotta try) but to no avail. Surely there must be some sort of syntax to ge around this?
Any ideas?
How can i make a program that will read a text file (.txt) and save each seperate line as a variable? [cde]...
View 5 RepliesAs Strings.Space Method , but instead space - new lines.For example:If I want 4 spaces, I can do:
space ("4")
But if I want 4 new lines,I have to do?:
VbNewLine & vbNewLine & vbNewLine & vbNewLine
Or there is another way and more effective? (such as "Strings.Space Method"for example)
I load a list of words in a string. How do I count the number of lines in that string via code?I'm trying to write a function like this:
Private Function CountLines(ByVal Data As String) As Integer
Count the number of lines in Data
End Function
It's a list of computer systems, basically, that the user can purchase.I need to read this file, line-by-line, into an array. Let's call this array csvline().The first line of the text file would stored in csvline(0). Line two would be stored in csvline(1). And so on.(I've started with zero because that's where VB starts its arrays). A drop-down list would then enable the user to select 1, 2 or 3 (or however many lines/systems are stored in the file). Upon selecting a number - say, 1 - csvline(0) would be displayed inside a textbox (textbox1, let's say). If 2 was selected, csvline(1) would be displayed, and so on.
It's not the formatting I need help with, though; that's the easy part. I just need someone to help teach me how to read a CSV file line-by-line, putting each line into a string array - csvlines(count) - then increment count by one so that the next line is read into another slot.So far, I've been able to paste the numbers of each system into an combobox:
Using csvfileparser As New Microsoft.VisualBasic.FileIO.TextFieldParser _
("F:folderprogramnameprogramnameinDebugsystems.csv")
Dim csvalue As String()
[code].....
But this only selects individual values. I need to figure out how selecting one of these numbers in the combobox can trigger textbox1 to be appended with just that line (I can handle the formatting, using the string.format stuff). If I try to do this using csvalue = csvtranslator.ReadLine , I get the following error message:"Error 1 Value of type 'String' cannot be converted to '1-dimensional array of String'."If I then put it as an array, ie: csvalue() = csvtranslator.ReadLine , I then get a different error message:"Error 1 Number of indices is less than the number of dimensions of the indexed array.
I need to save my username and password in a file... I want to save my username on top and password underneath.
View 4 RepliesIm working on this webbrowser and i have fully integrated a working Proxy (it will use a proxy such as 100.00.00:0000)It will only change the proxy ip if you do the code:RefreshIESettings("100.00.00:0000")(That is a code i made, declared i mean)Anyway so heres what i wanna do:I want to have a richtextbox or something, with lines of proxy ips, such as this:
100.00.01:0000
100.00.02:0002
100.00.03:0003
[code]....
So i thought maybe if you convert that richtextbox text into a string, it might be easier?
I have a Richtextbox with many lines. The data is as follow:
[Z=100, A=10, B=20, C=100]
[Z=100, A=33, B=50, C=255]
I want to split the lines to 3 new Richtextboxes, with the A, B and C values + the line number. Should maybe not be so hard, but I got stuck.
This code extracts the A, but obvious only the first line.
Dim values As String
values = RtbAll.Text
Dim Rawdata As String() = Nothing
Rawdata = values.Split(","c)
Dim s As Integer
For s = 0 To Rawdata.GetUpperBound(0)
RtbRed.Text = (Rawdata(1) & Environment.NewLine)
Next s
This is an example of the text I want to modify:
0110
0001
0001
1000
[Code]....
Here, I want to replace two-line digits in bold(0110 0001) with a different sequence as the program scans the text line by line. But two things complicate the task:
1. the comma lines should be ignored, but
2. they also should stay intact after changing the digits.
I was hoping someone could assist with the following coding; I am trying to search a very large csv file (approx 200,000 lines) for a user defined string eg "0100020789" and I essentially want to print all the lines that contain this to a text box on screen. Please not that the csv file does not have standardised column headings, each line is different. There would be approx 5 lines that contain the input string.
I am concerned with the v large csv i am using which will prob slow everything down, but then I thought if simple text pad application can search for a string in complete files with similar sizes like that and return a result in less than 1second, then it must be do-able.
I'm making the transition from VB6 to VB2008 and I'm having difficulty finding the equivalent to[code]...
It seems in VB2008 I can only use pens inside a picturebox1_onpaint() subroutine, I can't tell a picturebox what to do from a button_click subroutine or form_load subroutine first and then send the results to a picturebox. I have no control over when the graphics are drawn and from which subroutine. How do I solve this in VB2008 ?
I have a simple picturebox, line drawing procedure (call it "DrawTheLine"), which fires ok when I call it from a command button. But when I try to call it from the boot form_load procedure it doesn't work; no lines draw. No errors are raised.
Things I've thought of are:
1. The form_load procedure is not done creating all of the controls on the form, so it can't work with them yet. Doesn't make sense because my drawing call is the last thing in the form_load procedure, and it executes, but the picturebox does not show the lines.
2. Tried Application.DoEvents, but no go.
3. Tried using picturebox.invalidate to force a paint event and "called" the drawing procedure that way, with the appropriate arguments. Again, the procedure "DrawTheLine" fires, but no lines draw to the picturebox.
I have the following form:I want to join the boxes so that it looks like this: would rather create the lines on the userform manually but I do not think there is a way to do it. I've tried the following code but I cannot see the line:
Private Sub DrawLine(ByVal X_From As Integer, ByVal Y_From As Integer, ByVal X_To As Integer, ByVal Y_To As Integer, _
ByVal Line_Width As Integer, ByVal Line_Colour As System.Drawing.Color)
[code]....
Iam doing a sample project for school and i CHOSE Tic Tac toe. sample program of it becuase i have no idea where to start. And do I use a picture box to draw the lines?
View 1 RepliesI need to draw dashed lines. I use this code:
Dim MyPen As Pen = New Pen(Color.Black, MyWidth) With {.DashStyle = Drawing2D.DashStyle.Dash}
MyGraphics.DrawLines(MyPen , MyDots.ToArray)
But since the distance between successive lines it too short, the dashes start each one too near to the last. It causes a continuous black line
How would I do this? I want my Program to draw 2 lines in the center of the screen.
View 3 RepliesI can draw one line by mouse moving on a form, but i used cls function to clear screen when move mouse (otherwise it wont show single line when move mouse), so i cudnot draw next line with out clearing previously drawn line, kindly help how to solve this problm
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I am making a drawing application (Graphics class), with a highlight pen and a calligraphy tool. But the pen tip should not rotate according to the line direction. I have tried the CustomLineCap, but still not working.
View 3 RepliesHow to draw lines inside the circle. I mean a circle with n-number of lines within in it.
View 7 RepliesFirstly I am using Vb 2008 Express Edition.I have the following code:
Code:
Private Sub PictureBox1_Paint(ByVal sender As Object, ByVal e _
As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
Dim x1 As Integer = 0
Dim x2 As Integer = 50
[code]....
When I run the above code it works , no problem. But I want to trigger it only on my Button_click event.
Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
End Sub
I don't know how to call the PictureBox1_Paint into my Button1_Click
i want to "draw" zebra lines in my form [code] ican import background image, but I prefer code :)
View 1 Replies