For this code, its saying that "File not declared". My textbook isn't specific at times. I was wondering how do I declare "File" or what else will I need to declare.[code]
View 7 RepliesI have a series of text boxes with numbers. They are an array called txtBF(0 to 16). I am trying to take the value that is to be displayed in the text box and make it have only one decimal place. I have tried using this code below but I keep getting an error message Run Time Error 13: Type Mismatch.
txtBF(11).text = Round(txtBF(11).text, 1)
and I have also tried this
txtBF(11).text = Math.Round(txtBF(11).text, 1)
So as the name states; I am a newer coder.
This is the code i have:
Public Sub RandomNumbers()
Dim s(4) As String
Dim RandomNumber As Byte
I don't know if you can tell what I am trying to do here, so I will try to explain. I what to create for random numbers and place them into for different text boxes. I also would like to do this with combo boxes and their selected indexes. So if the combo box has 10 items in it; the new selected index would be the random number generated above.
1.In my program I have 2 textboxes.In first textbox user need to put some number.Let's say he put number 10, then in other textbox program need to write numbers from 1 - 10, like this:
1,2,3,4,5,6,7,8,9,10
If he put 20 in first textbox, in second textbox it should be:
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20
2.I need to do this...Import text file to listbox.Export items in listbox as text file.
Attempting to take data from a text file and place it into a structure.
Option Strict On
Imports System.IO
Public Class Form1
Structure Employee
[code]....
I have a several text files that get updated each month - when they are updated certain lines are missing that I always want adding back to the files - the text I want adding back needs to go into a specific part of the text file(its always the same text that needs adding and same location)
View 4 Repliesjust want to know how to get the path of a text files then put it on a textbox when saved in vb.net
View 6 RepliesI am assuming there is a way to have this sub in? I am assuming Do Until Loop is the way to go[cod]e...
View 1 RepliesJust want to know how to get the path of a text file when i open it then put it on a textbox in vb.net
View 6 Replies[code] I am trying to place random numbers into labels, but the process that i am doing is taking way to long, just wondering if there is an easy way around this? I also need to know the answer to the sums that get placed into the labels and then check that against the answer in the text box.I have looked all over the DIC forums and nothing meets my queries.Please help, this is just a quick program for my son so that he can get some sums into him.
View 14 Replies I am starting to learn reading and writing to textfiles. One quick problem. My code here
'Read is the variable that will read the kp.txt file"
Dim read As IO.StreamReader
read = IO.File.OpenText("C:2/kp.txt"[code].....
however when it is read into the listbox those 3 words appear on one line in listbox
How can i make it so that each line of the textfile is placed in each line on the listbox?
I'm using VB08. I've populated a listbox with numbers and I want to add all those numbers together and display the result in a Label. I've heard about using parse but I don't understand exactly how it works.
This is the code that I have that i think should work.
Dim lblTotal As Decimal
Dim sum As Double
For Each decAdded As Decimal In Me.lstRunningTotal.Items
sum += Double.Parse(decAdded)
Next
lblTotal = FormatCurrency(sum)
When I run it, nothing happens. My "For Each" statement I'm not sure if it's doing what I think it's doing. I can't believe I spent 6 hours banging my head against the wall but I finally got it figured out.
This is my revised code:
Dim sum As Decimal
For Each decAdded As Decimal In Me.lstRunningTotal.Items
sum += Decimal.Parse(decAdded)
Next
lbl_Total.Text = sum
Just some suttle changes made the difference
I need some help with to make a messages system. I build a form with display a message code and the message.
Example : 0000001 : Not connected to network
The problem is that i want to store in a central place where the numbers and the message will be stored in the code. I was thinking about a array to store the date.
i have a DatagridView, with a Colum " KG".Into the Colum, i place numbers.Now i wants a total of all numbers, place into a TextBox, using a code.
View 15 RepliesI enter Names and scores from a text box. Once i press "show me the array" my listbox gets populated with the names and scores. [code]...
View 14 RepliesI got a text file, which looks like this[code]...
View 8 Repliesi\m trying to do an application that read a text file that contains 2 columns of numbers and put it in 2 columns in a table
View 6 RepliesI have a text file to read. I need to read one part of the text file and get the specific number than match that number with another part of the text file but same text file. Now i can read one part and get the number. this is the [code]....
So after i get the spesific text that i want to how can i match that value with other part of text file. I attach my text file here.For example the value that i want to find is[code]....I manage to find the first value but i dont know how to match
I have ten words from listbox2. does anyone know yet how to place this words to 400 textbox?
View 1 RepliesI've got a program which displays data in a listbox in five columns. All are separated using one or more ControlChars.Tab. I want to write these columns to a text file, however, when I do, my columns lose their alignment. I can change alignment so that it displays nicely in text file, but then it is off in list box. Is there a way to get what I see in my listbox to display the same way in a text file - maybe a different way of separating my columns (not using ControlChars.Tab)?
View 7 RepliesI want to place the selected item from a listbox at the top (or second) position in the listbox display.I can't find a stylebit for this.
View 3 RepliesFor my database program, I need to open a text file and extract the numbers written there into arrays.
View 2 RepliesI have a textbox which has a numeric value that changes - would it be possible to check if that value matches two numeric values in a text file? and if the value matches then to display some text in a label? The textfile only has fields displayed like so
Horizontal 55
Vertical 16
So I would only need to check if the numeric field in textbox matches the two numbers in the second column. In the past I have use System.IO.File to create/delete/append to files but I havent come across anything like contains.
I am trying to make a program where I browse for a folder and that Browse dialog displays user selection into a Text Box that part I have completed, when that user selects the folder it will recursively search all folders and subfolders in the directory the user has chosen and display that list in a ListBox here is the code I have so far. Also to note I have found a function for recursively search a folder but I have no idea how to implement it to display in the ListBox from the User selected directory.
This code is the code that lets the user select the folder and display it in the textbox
Private Sub SourceButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SourceButton.Click
With SourceBrowse
[Code].....
On a side note I also want the list to display all the files in the folder as well.
I am trying to make a program where I browse for a folder and that Browse dialog displays user selection into a Text Box that part I have completed, the part I need help with is when that user selects the folder it will recursively search all folders and subfolders in the directory the user has chosen and display that list in a ListBox here is the code I have so far. Also to note I have found a function for recursively search a folder but I have no idea how to implement it to display in the ListBox from the User selected directory.
This code is the code that lets the user select the folder and display it in the textbox
Private Sub SourceButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SourceButton.Click
With SourceBrowse
If .ShowDialog = DialogResult.OK Then
SourcePath.Text = .SelectedPath
[code]....
On a side note I also want the list to display all the files in the folder as well.
I'm using the SaveFileDialog to save listbox info into a text file. The files save fine, but when you go to save the file, if you hit the cancel button, it will overwrite the previous file you saved, because it's name was the same and it seems to save the previous file as the new name for your next file. Is there any way to catch if the user clicks cancel, and then exiting the sub if they did?
View 2 RepliesI am making a program, where the user enters 6 numbers in 6 different text boxes, and it displays the larger of those 6 numbers. But I also want to make it where if the user enters a string value (like S for instance) in the text boxes, it gives an message and says "please enter the numbers again" and the user gets to enter the 6 numbers again. But when I do try to do that, it gives an error message saying conversion from "w/e the user entered" to Double is not valid. If the user just enters the numbers, it works fine. However, I am trying to make it if the user does enter non numeric value, it gives a message window and the user can reenter the numbers again.
Here is my code Example
CODE:
This is where I am trying to use IsNumeric to show a message if a user does not enter a string so the user can renter the numbers again, but when the user does enter a string value (say in textbox 1) it gives me an error message saying conversion from "S" to 'double' is not valid.
CODE:
Then right here this is where I have my series of ifs statements, this part works fine, it displays the largest numbers of the 6 textboxes every time. Error free.
CODE:
And do this with variable number 2, 3, 4, 5.
I know there are easier ways to do these with arrays and stuff. But I am not there yet. I am still learning about ifs and stuff.
I have a text file and a list box. what Im wondering is how I would get the listbox to list the text from the text file. sure, easy, but wait! in my text file, I listed web addresses and dates with tags in front of them. for example my file would be like: [Code] what would the best way of reading the tags and displaying it right in the list box?
View 2 RepliesI'm a little new to VB, and I'm in a class for it, but I'm trying to do something we aren't going to learn in the class (mostly out of sheer interest) and I need help. I'm trying to read lines from a text file into a listbox, each line representing a new item on the listbox. For example, if the text file reads: [code]I want to be able to take that as is and read it into a listbox, where those words would appear in the exact same fashion; as a list, each as separate items. I've looked at the Help stuff and learned (sorta) about delimiters... but the thing is I don't want to write my entire list in a continuous line separated by commas--I want it to keep reading each line, and moving on to the next, until there are no more lines left. I am thoroughly stumped, and would appreciate it SO much if someone could help. For a frame of reference, this is the point I'm at now with my code: [code]Note that when I run the program, all it will do is read the first line of text available and stop; once I press ENTER in a text file, it decides to stop reading.
View 2 RepliesI am trying to load a text file into a list box in order to be able to play the files see code below I have an error on this line Which states Error 1 Value of type 'String' cannot be converted to '1-dimensional array of String'.
Dim Open As New OpenFileDialog
Dim myStreamReader As System.IO.StreamReader
Open.Filter = "Text [*.txt*]|*.txt|All Files [*.*]|*.*"
[code]....