i am having trouble deleting the individual rows in the datagrid. That is when the user select this row only this row will be deleted. i am getting some errors at the dataset there. the below is my code to delete from the database:
[Code]....
Is it possible that when a new line (anywhere in a richtextbox) is added/deleted, then a line is also added/deleted in another richtextbox?
[Code]...
I am using this code to draw a line on a form using textboxes as the x and y coordinates. I then click the button with the code below that will draw the line.
Before the new line is drawn, I would like to have previous lines deleted first.
How can I delete these lines?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim canvas As New ShapeContainer
[Code].....
You would think a search for this would show some results but I have had no luck.If I want to delete a line by a line number from a text file, how do I do that?
View 6 Replieshow to delete a richtextbox line, if the line only has one value. Ex:
[Code]...
what i need to do is open a txt file, read line by line, decode each line into an array and display. Now all works ok apart from one line.
sTextLine = objReader.ReadLine() <-- Value of string cannot be converted.
full code here
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Dim objReader As New System.IO.StreamReader(sOpenFile.Text)
Dim sTextLine As New ArrayList()
Dim sText As String = ""
Dim i As Integer = 0
[code]....
how to read text from a listbox line by line and put current line in a label?
View 3 RepliesHow would i go about reading a file Line by Line that within that line The values are delimited by " Example of the data:
"bob" "cat" "1243"
"steve" dog" "6789"
I've started this with this code but not sure how to go about the next stage:
Using MyReader As New _
Microsoft.VisualBasic.FileIO.TextFieldParser(My.Application.Info.DirectoryPath & "Records28112011.jd")
MyReader.TextFieldType = FileIO.FieldType.Delimited
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I am trying to read in a TextBox line by line and take the first 7 characters of each line and output everything in another TextBox.This is what I have so far.
Dim line, lines() As String
lines = TextBox1.Text.Split(Environment.NewLine)
Dim i As Integer = 0
[code].....
i need the app to preview the line in textbox in timeintervalof 1 s (can be change)nd when it will reach to the end it close the text file and andreread it after let say 1 m ..
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim myStream As Stream = Nothing
[code].....
I have lines like this in my text file
10.0 28 Blue (B1-T54 ) [1 01.69 65.4] 47234 -22234 181017 76921
6.5 28 Blue (B1-T55 ) [1 01.80 50.2] 48234 -21234 203852 76133
11.0 28 Blue (B1-T56 ) [1 01.80 64.9] 48234 -22234 181804 76133
[code].....
I've been search and I can't found an answer that works, I need to remove (delete) the last line in a RichTextBox1 in vb .net, I mean remove last line and 'breakline' too, but only the last, no others,
View 1 Replieshow can i delete line 1 from listbox?
View 13 Repliesok i have a textbox that look's like this [code]say my code grab's the word EON & ERN & HEN and send's it to 1 of my textbox's/i need those deleted so they cant be sent again to my textbox.[code]
View 3 RepliesI am trying to figure out a way to delete something inside a text file but keep everything around it.[code]....
View 4 RepliesI'm making a function that is supposed to delete a line from a textfile "test.txt". I'm having no problems with finding what line i want to delete. The basic idea is this: read the whole file with streamreaderdelete the linerewrite the file with streamwriter. My problem is the last, how can i completely remove the file content, and write another string in it, writer.writeline just appends a line.
View 2 RepliesHere is an example of a line:
H e l l o t h e r e !
I want to delete every other character so that it looks like this:
Hello there!
I have a program that reads a text file tab delimted using OLEDb I need to be able to allow the user to insert a user created record into the file which I can do. The problem is I need to be able to let the user edit that record. From my understanding you can not edit or delete with OLEDB only insert So I thought I would read the file using stream reader, find the line I want to edit and just delete it, rewrite the file, then let the user insert a new record?
Dim strDelimiter As String = vbTab
OpenFileDialog1.InitialDirectory = "C:\"
OpenFileDialog1.Filter = "Text Files (*.txt)|*.txt"
[code]....
Is there a way to delete the final line of a DataTable? I use - DataTable.Rows.Remove()But how can I find out which is the final line in the DataTable
View 18 Replieshow can i delete the first 6 letters from a line in any TextBox?
View 39 RepliesI have a RichTextBox.
I want to input an integer and the RichTextBox to go to that line and delete all lines above it.
For example, if I have 100 lines in the RTB, and I specify "25" as the integer, I want lines 1-25 deleted and for the RTB to keep 26-100.
i have a listbox that lists the contents of a .txt file, How can i make it so that when i click a button it will delete the selected line from the listbox from the file?
View 3 RepliesI am a beginner at this and I am taking classes, however I am having trouble deleting a line from a Comma Delimited .txt file.[code]...
View 8 RepliesI am working on a program with a list box that displays text from a selected text file. I have already made it to delete the item from the listbox but I don't know how to get it to delete that same line from the text file so it doesn't just display it again when you reopen the dialog. Any help? I am using streamwriter and streamreader.
View 2 RepliesI use Visual Basic 2010 Express on Windows 7, and VS 2010 Prof (vb) on Win'xp with NO IDE extensions at all.
It seems to me, that the bookmarks placed by their editors don't resist against some type of very basical source code modifications. I did searches about the problem, and I've found some signs that other people alse had problems with it, but not so many?
If I insert / delete a line anywhere before a bookmark, after saving the project and reopening it the bookmarks shift up / down by the number of the inserted / deleted lines. in the simplest new windows form application by inserting two lines of code (dim a as integer=0, ...), adding a bookmark at the last one, closing the newly created project, leaving vs, reopening the vs + project, checking the correct place of the bookmark, inserting a new line of code between the existing ones, saving the file, leaving vs, eopening the project, checking the placement of the bookmark having been placed at the last line?
I have a routine that will check a text file for a line to be deleted and deletes it when found. Now the problem i have found is that the lines can be slightly different depending on what the user has done. Now in the TXTSETUP.SIF which is a file in the Windows Source you have the following lines FIG 1. FIG 1: It may look like this: ascent.jpg = 1,,,,,,,,3,3autumn.jpg = 1,,,,,,,,3,3
View 1 RepliesDeleting a line from a text file. This is for an ASP.net Webpage. I will have a file called Sources.txt. Example data of this file looks like this[cde]...
View 8 RepliesI have a program that reads a text file tab delimted using OLEDb .I need to be able to allow the user to insert a user created record into the file which I can do.
The problem is I need to be able to let the user edit that record. From my understanding you can not edit or delete with OLEDB only insert So I thought I would read the file using stream reader, find the line I want to edit and just delete it, rewrite the file, then let the user insert a new record
If someone has a better way to perform this operation I am open its just the best way I could find with my limited knowledge and the reading and researching I have been doing thus far.
So I am trying to step-by step and first read the file which seems to work then find the line that would need to be deleted. So I was trying to use the
line.startswith method. I am using msgbox to see if that works before I continue but it doesnt seem to work I know my file has several lines starting with "Active" but my msgbox returns "False"
Here is the code I have so far
[code...]
i want to delete few lines from a big text file , normally this lines are at the starting of the text file , so it is possible that i can enter the line no from input box and the vb.net can delete that particular line number from the text file ,
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I am writing a program that manipulates text file using console application. What I want to do is to delete 1 specific line based on the ID entered by the user.[code]My program should delete the line with the ID DR-02, but my program deletes items from DR-02 to DR-04 instead of DR-02 only.[code]
View 3 Replies