I have a multiline textbox where I sometimes get the first and last line of data that is blank.
This is my code that populates the textbox:
txtOutput.Lines = lines.ToArray How can I remove these blank rows?
I use the following coding to replace a word in my textfile, would it be possible to add any coding that will remove all blank lines from the same text file?
Dim EditMyFile As String = IO.Path.Combine("D:Test.txt")
Dim inputFile = Regex.Replace(IO.File.ReadAllText(EditMyFile), "test", "test2")
IO.File.WriteAllText(EditMyFile, inputFile)
I have tried the following but it doesnt work.
Dim EditMyFile As String = IO.Path.Combine("D:Test.txt")
Dim inputFile = Regex.Replace(IO.File.ReadAllText(EditMyFile), "test", "test2")
IO.File.WriteAllText(EditMyFile, inputFile)
Dim sText As String = File.ReadAllText("D:Test.txt")
Dim sNewLines() As String = sText.Split(New Char() {ControlChars.Lf}, StringSplitOptions.RemoveEmptyEntries)
File.WriteAllLines("D:Test.txt", sNewLines)
Is there a possiblity by any chance that a blank row in datagrid will be remove? Let's say the datagrid has this kind of info :
Column 1 | Column 2 | Column 3
User 1 NY 290-5542
Null Null Null
User 2 CA 350-5555
Lets assume that row 2 has a data and I inputed the data in row 3, however I change my mind I deleted the data in row 2 and that will leave row 2 blank. Is there a method where I can remove the row 2. The first thing come up on my mind was use a timer wherein it runs all the time.
i have coded as below but once the record deleted and when the application write to text file again it gives an error says index was outside the bounds of the array any solution?
Dim stream As New IO.StreamWriter("C:Documents and SettingsAdministratorDesktopBill PaymentBillPaymentRecords.txt", False)
stream.WriteLine("")
stream.Close()
OK here is what it looks like when it saves
[Code]...
first why do I have a extra blank line between 2 lines of text
I have a mainform from which I display a second form with a few comboxes
[Code]...
remove blank lines from listbox?And remove specified text from listbox (text line that i can specify in form code(But if i specify to remove line something like [URL] it will remove the line [URL] but doesn't remove line [URL].
My code for adding items to listbox is:
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim PageElements As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("img")
For Each CurElement As HtmlElement In PageElements
[code].....
Does anyone know if there is a command to remove extra whitespace (blank lines) when coding?
View 8 RepliesI think we can just draw an image that resemble the grid using this article : drawing in a datagridview Currently creating a way to make the image drawn in tile mode. Each time I develop a datacentric application using VB.NET regardless of how much the data displayed in the datagrid, I always want the grid to display full row of empty data, not just blank panel. Can we achieve this using VB.NET design time property? And also, we must not trigger the display of vertical scrollbar this way..
View 1 RepliesI have a function that is reading a sequential file and storing it into an array by using the delimiters of
The first record appears correctly however, the second element in the array has two null lines at the beginning and at the end of the record. [code]...
I followed the last post about dgvs and have been trying to get my dgvs to have alternate colored lines on form load. In both apps I am working on I am using dgvs to display certain things. I do not like the look of a blank dgv on a form. When I tried to add blank colored lines to my dgv, it did work, but when I loaded the dgv with a dataset, it pushed my columns to the right and I had to add scroll bars to see my data.
View 1 RepliesI have a arraylist with plenty of lines. The array is populated from documents that have all kind of stuff in them, I got no control over what they contain. There's blank lines and double linebreaks so when I want everything in a textbox I clean it using this
[Code]...
I have a text file that I'm reading into a listbox. I want to skip a line if it's blank. The following code works if I leave out the check for the line being blank. It puts the file in the listbox with no errors. However, when I include the If statement that checks for the line being blank, I get an ArgumentNullException in the Items.Add line when It gets to the end of the file.
'Read Multiline File
Dim FILE_NAME As String = "C: empliz-etsy.txt"
'
If System.IO.File.Exists(FILE_NAME) = True Then
[Code].....
I am in the process of developing a VB.net helper application that will combine two text files into one, remove the extra blank lines, do some calculations and spit out a new and improved text file.
My question is: at the beginning of each file is a header row that starts with a "01". How does one go about removing all of the other "01" rows but leave the first header line?
So far, I have succeeded at removing all of the "01" lines, which isn't what I want but hey, I got it to work
I am using the follow code to obtain source code from my site:
Dim downloader1 As New Net.WebClient
Dim source1 As String = downloader.DownloadString("[URL]")
But there is code in the file which I am loading, something like:
<!-- load time: 0,05ms -->
<!-- Queries: 25 -->
But I want to remove all the <!-- --> lines from source1.
i have a listview box that lists working/bad proxys.
It all works but just found a bug with copying selected items from the listview.
Dim sb As New System.Text.StringBuilder
For Each item In ListView1.SelectedItems
sb.AppendLine(item.text)
Next
[Code].....
What I am trying to do is remove lines of a multiline TextBox based on certain criteria, such as the number of characters or words. For example, if I paste a list of phrases into the TextBox, I want to remove all phrases that contain more than 25 characters. Once the phrases are removed, I then want to remove the empty lines that are left behind, but I have commented out the ".Replace(vbCrLf & vbCrLf, vbCrLf)" for the sake of making the results easier to follow (see screenshot from Excel below, which includes a blank cell wherever a phrase has been removed).
Here is my
Private Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click
Dim lines() As String = TextBox1.Text.Split(vbCrLf)
[Code]....
Why is it not "blanking" the entire line in ALL cases where the line contains more than 25 characters?
I am using streamreader to read and streamwriter to write, I have put the lines into an array
[text file contents]
Remove [ ] *****************
-----
;this is -----
------
;this is another -----
[end of example file]
I want to remove the lines that start with "****" and keep deleting lines until i reach ";" I thought this would be simple but im missing something and I don't want to put this array into a listbox it is being writen to a text file.
I am using the following code to write lines to a file. I seem to get Zero's after my text.Any suggestions to get the trailing zeros out of my text file? [code]
View 2 RepliesI try to view a datagrid with one empty row in it when the form loads. The datagrid has to be bound to a datatable all the time.I get a NullReferenceException with the following
Dim dt As DataTable
dt = CType(Me.grdDataGrid1.DataSource, DataTable)
Dim newrow As DataRow = dt.NewRow()
newrow(0) = 1100
dt.Rows.Add(newrow)
The error occurs on the line where dt.NewRow() is used.The problem occurs when the datatable (and the datagrid) is empty. If they have data, this works ok.What do I have to do to get this to work with empty datagrids?
I have an open file dialog that shows when a button is clicked. Last night it was working fine. This morning I am testing some code and when I click the button to open the dialog the entire form is blank accept the dropdown for filename and the ok and cancel buttons. What happened? I have tried deleting the dialog and the put it back but it still does the same thing.
View 7 Replieshow do i set my initial value for textbox as blank. I tried to I load my textbox a data coming from my database but what my problem is that I need to set my default value for textbox as blank because everytime I load the forms the textbox will be filled immediately with data. This is how I bind my textbox and combobox after loading from database.
cbxJoblvl.DataSource = myDataSet.DefaultViewManager;
cbxJoblvl.DisplayMember = "Joblevel.lvl";
cbxJoblvl.SelectedIndex = -1;
txtLvlName.DataBindings.Add("Text", myDataSet.DefaultViewManager, "Joblevel.lvlname");
on my form i have a GridView with add/edit/delete rows disabled, i need it to show blank rows for the unused size rather than blank background.
View 1 RepliesI want to add just one line in DataGridView with blank values.
View 11 RepliesI've got a chapter I'm supposed to be working through and cannot access the template for a blank solution. My instructions are as follows:From the "File" menu, select "New", select "Project", select "Other Project Types", select "Visual Studio Solutions", and select "Blank Solution."
I can see File, I then see "New Project", but not just "Project". I click on this and my only choices are :
Windows Form Application WPF Application Console Application Class Library WPF Browser Application
I've tried searching the installed templates for "Blank Solution", "Solution", "New Solution" and have no results. I've looked around for a couple hours hoping for a way around this and no luck so far.
I have a textbox and a copy button, when I publish the app and run it, it returns an error if there is nothing in the textbox. I know why its giving me the error, but is there a way to suppress the error? Make it copy nothing? I want to make my co-workers and my lifes a little easier.
Current Copy
Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click
Clipboard.SetText(TextBox5.Text)
End Sub
I'm reading a csv and load it to a DataGrid using this:[code]Each item on record is between two commas, I tried a lot of things to remove them but I failes, wich is the best method?
View 4 RepliesI'm using this code to remove controls from a panel.vb.net For Each c As Control In Me.pnlDevices.Controls Me.pnlDevices.Controls.Remove(c)Next
but somehow it doesn't remove all the controls at once, I have to run the code 3 times to remove them all(there is about 20 to 30 of them, mainly labels I don't know if it matters, but the controls where added dynamically at startup...
My Visual Basic .Net 2010 application reads data from an EXCEL spreadsheet which will be generated by my "customers". The responses to Alkis last year (23 July 2011) has been a big help and got me over a hump in my application. Now I am down to the last issue - how do I detect a blank cell? Valid data is numeric, starts at a fixed cell (A5 to be specific), and will be continuous until it ends with blank cells. While blank cells appear to print a "zero", when I try to use zero as an end criteria I get a 'System.InvalidCastException'. When I put in a specific end value (-1) in the last cell all works fine but that, of course, is an invitation to a user error.What is the difference between "Value" and "Value2" and where might I find documentation that explains the difference? [code]
View 1 RepliesI have an rdlc report that always produces the last page in blank. In this page, the header and the footer are printed but no data is shown (all data finishes in the previous page). I already checked and re-checked the horizontal and vertical printable areas and all the report definitions fit into these areas (if not, a blank page will be produced in between each page, I guess). If the report has one page, two pages are printed, if there are ten pages with data, eleven pages are printed
View 4 Replies
