I want to remove a csv file column from vb.net , or i want to select specific columns from the csv file for storing the records into database. the problem is , csv file don't have header text.i changed the text file into csv, so i didnt add the header, is any option for adding the header with the csv file at run time.
View 1 Replies
I have two text files, the first text file has two columns separated by a space (" ") and the second text file only has one column.
The column 1 in text file 1 and text file 2 match albeit in different order, what I'm trying to achieve is for every field in column 1 text file 2 I want to search for column 1 in text file 1 and display the matching column 2 field in column 2 text file 2.
Dim*OpenTextFile*As*String*= IO.Path.Combine("C:Test1.txt")
Dim*OpenTextFile2*As*String*= IO.Path.Combine("C:Test2.txt")
Dim*SaveTextFile*As*String*= IO.Path.Combine("C:Test2.txt")
[code]....
I would like to remove the first 2 columns in the datatable if the first character is not numeric. Here is my code so far.
For Each DRow As DataRow In aTable.Rows
Dim cRow As String
cRow = DRow.Item("Column 4").ToString()
[Code]....
i have a date type column in my database and i have only kept the date in that but
when i use a select statement to get data it always comes with the time for example
in the database its only "12/30/2009 " but it always comes with "12/30/2009 12:00:00 AM"
" 12:00:00 AM" is attached with all the records but in the database its only "12/30/2009"
In my application I have several datagrids databinded to various tables. Within these tables I use many times a date field. The database is made in access. At the beginning I had the date format on default as long date. When I saw that time was added I changed it to shortdate. Still I get the time in the various datagrids. How do I remove the time from the datagrid so no time is entered when I create a new field.
View 4 RepliesI have an Access 2007 database with a column defined as AutoIncrement. I need to remove the definition while I programitically load data into the database and then re-add it when I'm done. I've unsuccessfully tried the following code, but get an error: "Exception from HRESULT: 0x800A0CC1" I'm using the following code to try to remove the attribute:
Dim cn As New ADODB.Connection
Dim cat As New ADOX.Catalog
Dim objTable As New ADOX.Table()
Dim objField As New ADOX.Column
[code]....
In Window Form ListView, I add columns dynamically, but I got an extra column. How to remove it? Which property can it be set?
View 1 RepliesI am trying to figure out how to remove the far left column from a datagridview. You can see more of what I am talking about in the screen shot provided.
How can I remove the first column in a datagridview. I mean the first column with the record pointer? I am using VB.NET 2005. Also I am not binding the control to any database.
View 6 RepliesI am using TextFieldParser to Read a Tab Delimited Text DataFile. The problem I have is that some times the data file (3rd party provided) contains an extra Tab which therefore creates an extra column. I need to remove this unnecessary column. Some columns will have rows that are empty so I cant just delete the column if it has a blank row, So I think I need to loop through each column and if if every row is blacnk then delete that column.
Here is the code that reads the file, I was going to remove the column from the table called table before I populate the table called dtAll , which is what my program uses
Dim safeFileName As String = IO.Path.GetFileName(Me.OpenFileDialog1.FileName)
Using myReader As New Microsoft.VisualBasic.FileIO.TextFieldParser(safeFileName)
myReader.SetDelimiters(vbTab)
Dim currentRow As String()
[Code] .....
Ok i have a weird issue. I cant figure out what to use... CSV has two colums :-Name, MobileJohn Doe,60002000Jane Doe,Now i would like to delete the whole line if mobile number is empty.. i cant figure out what to use. Mobile number are 8 digits long.
View 11 Repliesi am working on a Windows Forms application using VB.net. It basically is an application made in vb 6.0 being upgraded to vb.net. Now i have an idea but i am not sure if it exists.
Say i have a database (My_DB) and it has a table (item_details).
I wish to make dataentry into the elements of item_details table which currently has 6 fields. So i add 6 textboxes and 6 labels and make user enter them, one record at a time.
Say tomorrow i add or remove a field from the table item_details. I want such a mechanism where if the underlying table structure changes, the corresponding number of textboxes and labels must automatically change themselves. i.e. if i remove a column and now i have 5 columns, the form must also have 5 labels and 5 textboxes. Are there any controls to achieve this functionality. Am i talking MVC here?
I'm using a listview in my application.(view=details) when user try to sort the listview by clicking the column header i use the imageindex property to set an icon for that column header, but I don't know how to remove that icon from that column header when user clicks another column header. How should I remove the icon(picture) from the previous column header?
View 20 RepliesI created a windows form which contains a datagridview. I named one of the columns in the grid 'location' which appears to have generated an error. The problem is I cannot load the form to remove the column as an error is generated and when I load the designer code it says do not modify with the code editor but use the windows form designer.
[Code]...
How replace comment column with value column in resource file via programming?
View 4 RepliesI would like to know how to remove part of a text file between two points
For example, say i have a text file that contains:
Code:
START
<LOWER_LINE>
-4.920156 -2.543200 4.277774
[Code].....
I want to write directly to the source file. The files I want to edit are only about 30KB
i need to be able to check files in a folder to check if any has spaces in there names and then remove the spaces.
So, Aero Vista.jpg will become AeroVista.jpg
I'm trying to use a datagrid in my VB application. But I'm running into a problem. I keep getting this column, shown below highlighted in red, and I can't figure out how to get rid of it.
What property do I use to get rid of this column?
Further more, how can I create a context menu for when I right click on a grid row.
Well im making a program that will Add the Safe File Name of the File opened in the Open File Dialog to the first column of the listview and the File name and path to the second. What i want it so when i double click on the Safe file name it will open the file specified in the path in the second column.i already got the add file to it.
View 4 Repliesis there a way to remove the vocals of an mp3 file using C#/VB?
like is there a class (or downloadable library) that helps us do something like this: new Mp3File("song.mp3").RemoveVocals().SaveTo("song edited.mp3")
Btw it doesn't have to be specifically mp3, if it can handle at least 1 type of audio file i'm good to go
I have a textbox that the user must put the path and file name into like so
"E:configsserver2config.cfg"
I wrote and tested the code I did to grab the "E:configsserver2" part without the file name so that I could reference other files such as images within the same directory level. I will post only the code that is meant to grab the path as it's where the problem is. So don't worry if you don't see any dim statements for variables as they are there.
'Get file and path from textbox
fileV = loadTB.Text
'The starting index of the string counting back to the begining
countDown = fileV.Length - 1
'Get the path of the file so that we can find the images
[Code] .....
I am reading all files from a directory and writing them to a text file. This is working just fine.[url]...
How would i go about removing the file path from the list of file names in the text file.
I was wondering if anyone could help me with the following problem:
I am working with a csv file (it contains two columns of numbers), which as a last character has a comma and I would like to remove that comma from the file.
A file I'm writing to contains a carriage return and line feed at the end that I want to remove. I'm working on this, but not there yet.[code]...
View 1 RepliesI'm making a practice test program that creates a file after 5 login fails. I want it to remove the file after 15 minutes, how can I do this?
View 5 RepliesWhat i have realized is that when you use My.settings, a XML File is put with your EXE when your project is Published.
What you can also do is just Open that File and Change the Variable "Register" From "False" to "True"
How can i do what Most Registration files do, and make the XML File go away and Create a Unwritable file, where the values cannot be changed.
I have two text files. The fields in each text file are separated by a space (" "). Some of the fields in column 1 of file 1 match the fields in column 1 of file 2. However the third column in file 2 is a numeric field. What I wish to do is check every field in file1 against the field in file 2, and if the number is 1 then remove the row from file 2, if the number is > 1, then subtract one from it.
I have the following coding so far.
Dim lines1 As New List(Of String)(IO.File.ReadAllLines("File1"))
Dim lines2 As New List(Of String)(IO.File.ReadAllLines("File2"))
Dim values As New Dictionary(Of String, Integer)()
[Code]....
I'm trying to open an existent file save a bytes in the start of it to later read them.
How can I do that? Because the "&" operand isn't working fo this type of data.
I'm using Encoding.UTF8.GetBytes("text") to convert info to bytes and then add them.
My user can export a ".doc" file but when VB.NET writes to this file it uses "" and "," characters at the end of each sentence. I was wondering if there was a way of actually appending the exported file to remove these characters?
View 8 RepliesI am creating a program which can store files, and I display their names in a list box, with their contents in another list box. My program can read the file names but has the file extension ".txt" added to all of them, meaning that the program cannot read the contents. How can I remove ".txt" from them? [code]
View 3 Replies
