VS 2008 Combo Box Remove Blank?
Jun 30, 2009
This combo box is databound to a SQL backend, so when it is filled it has a blank at the top of the list. I am assuming this is added because of the NULL at the bottom of the SQL table. Is there a way to remove this entry?
I have tried the following:
.items.remove("") ' does not work, i added this after the population command
.items.removeAt(0) ' This gave me an exception stating that it could not be used because the datasource was used This is the code i use to fill the combobox on form load:
With ManufacturerComboBox
.DisplayMember = "Manufacturer"
.ValueMember = "ManufacturerID"
[Code].....
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Feb 28, 2011
I want to know how remove all blank space in my Richtextbox for exemple:
(remove) hi
(remove) there
I found how removes extra blank line and here is the code : Me.RichTextBox4.Lines = Me.RichTextBox4.Text.Split(New Char() {ControlChars.Lf}, _
StringSplitOptions.RemoveEmptyEntries)
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Mar 2, 2009
I have a text box with the following text:
[colour=blue]Summary: [/color]
Testing summary
How can I use vb.net to parse this to:
[colour=blue]Summary: [/color]Testing summary
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Oct 1, 2009
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].....
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Oct 12, 2011
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].....
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Jul 8, 2011
The combobox is bound via binding source to a table. How can I display the list of look up options while having the first option say [None} and if selected, clears the value from the list.
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Aug 20, 2009
I've used VB to connect to Excel and get the titles of the different columns in a spreadsheet. These then display in a drop down combo box for the user to choose from. I'm getting lots of empty values in my combo box because not all the columns in Excel have titles. How would I go about telling it not to display them?
Excuse the easy question but I've only started learning to code a week ago.
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Apr 27, 2010
I've inherited a form that has a DataGridView that is bound to a dataadapter and it is connected to a binding source. Within the DataGridView is a combo box that is bound to its own bindingsource which basically just calls a stored proc to bring back the possible values for the dropdown combo control
With a blank new row and sometimes even with an existing row, this value for the combo box can be NULL which is a legitimate value for it if no value selected. Problem is everything is so tightly bound if the user mistakinly clicks the dropdown then a value is populated and there's no way to get back to NULL
I've tried to catch the mousecelldown event and others to try to catch this before a value is selected but the Cancel=True doesn't work - I can catch the event but don't know how to return the cell to unclicked or reset it to NULL or pre selected value if NULL I know how to at a new row with the datatable and then set the combo datasource to it and I have my null blank value but with a tightly bound control how do I add this row?
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Jan 25, 2011
How to remove only blank items from listbox? I mean I wanna make button that only remove blank items from listbox.
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Mar 28, 2012
How can I remove all blank items from a listbox?
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Feb 10, 2009
How can we remove all blank spaces from end of the string fox example the string name before remove space
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Feb 17, 2011
How will i be able to remove a blank page from a PDF file? I have a sample PDF file where the 1st page contains a few strings and a 2nd page with absolutely NOTHING in it. I tried to loop into the pdf pages and get the element count PER page but the funny thing is that i get the same number between the 2 pages =| How did that happen if the 1st page has a few strings and the 2nd page was absolutely blank???
This is my code
Dim inputDOcument As PdfDocument = PdfReader.Open("")
Dim elemountCount As Integer = 0
Dim elemountCount2 As Integer = 0
Dim pdfPageCount As Integer = inputDOcument.PageCount
[Code]...
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Jun 6, 2009
Is there any way to remove the spaces at the end of text after it has been pulled out of an SQL Database. Ive tried timming but ive had no luck.
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Jun 12, 2012
I have a string which contains many rows of data which has been converted from a datatable. The last row of my string has nothing within it, no spaces or anything. How can I get rid of this row? I have tried regex, but cant seem to get anything that does the job. I am writing in VB.[code]...
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Nov 23, 2010
I have a comma deliminated text file which i am using to generate a multidimensional array using the following [code]...
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May 4, 2011
Basically I've got a list of items in a text file, but sometimes a blank line gets inadvertently put in there, and I need to be able to delete that line (or change that line to a set value, either is fine).
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Jun 10, 2011
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].....
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Oct 15, 2009
I'm using a Do Loop to do calculations and display them in a textbox. how I can remove the last blank line at the very end of the displayed values?
I know that it's caused byControlchars.Newline, but I need it to display the calculations line after line.[code...]
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Jun 27, 2009
Does anyone know if there is a command to remove extra whitespace (blank lines) when coding?
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Aug 16, 2010
I'm implementing a feature which reads comma separated txt file from server(one line at a time). Format of file is fixed, There are 3 columns on each row. After reading the row from file I insert it in a database table. But first value of each row aoutomatically appends two blank spaces, even if there are no blank spaces at the begining of each row. I tried to use "TRIM/LTRIM/Replace" to remove blank spece from the first value of each row, but didn't succeed.
[Code]...
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Jun 21, 2012
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)
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Aug 21, 2010
To reduce the size of some images I have, I'd like to remove the white padding that some have. The idea would be that if one has large white areas on the borders, then those can be cropped to save some space.
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Apr 3, 2011
I have used the command:
For Each Proc as process in process.getprocesses
Combobox1.Items.Add(Proc.MainWindowTitle)
to populate a combo box with the list of current process windows, however for every process that doesnt have a main window title there is a blank space, is there a way that I could tell it to not insert the item if it's mainwindowtitle field is blank?
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Mar 27, 2012
So I want it to remove any text in the list box that has a "Job" in it and just replace it with a blank nothing.
Like if the listbox looked like this
Yardjob
jobsong
redjob
then it would change it to this
Yard
song
red
I also would like a way of removing any blank items from the listbox.
[URL]
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Jun 30, 2010
Not really sure if the title is fitting but couldnt figure out a better one.
However
I am trying to create a console app which is a TCPlistener however whenever it receives any data and I write to the console window it gives alot of 'enters' (blank lines) which is not what I sent at all.
Example:
'sending
Dim toSend() As Byte = Encoding.ASCII.GetBytes("1")
_writer.Write(toSend, 0, toSend.Length)
'receiving:
[Code]....
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Sep 22, 2011
ReportDocument cryRpt = new ReportDocument();
//cryRpt.Load("C:\Documents and Settings\Vaibhav\Desktop\powertech\report2.rpt");
cryRpt.Load("E:\powertech\crystalreport1.rpt");
[code].....
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Jul 26, 2009
In my detail form I would like to diaplay datetimepicker field as blank in case when user open new record. Is it possible to display blank datetimepicker? How it to do?
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Aug 13, 2011
I want to add a blank value to a field in access database with vb 2008 command.
Problem 1: Here is my code, it shows conversion to string not possible errors
Private Sub btnRedThrow_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRedThrow.Click
Dim dbCnct As New DBUtills
[Code]....
notice the fifth and last value is empty. But it is not being added into the database, how do I do that?
Problem 2: Why does an additional field from my access database disappear even after I manually created the field?? (access database 2003 version, extension is .mdb) I'm using visual studio 2008
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May 16, 2009
I have searched all over the forums and not found an answer to my question. My question is how do i write to an access database at runtime. The database is also created at runtime. I have a dataset loaded with a table that i needs to be written to the database. how would i write each row of my dataset to my database? Sorry if this sounds a little jumbled together it is late and i am tired. If it is unclear you can ask me and i will answer any questions you have about my question.
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Jan 19, 2011
I had created a media player using directx. It works perfectly even with resizing the form but I having problem when I minimize it. I use panel as the owner of the video and after I minimize and change it to normal state, the panel goes blank but the sound goes on. Then I get an error in application notification by VB2008. There might be something to do with the graphics where I dint handle it when I minimize it.
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