I was wondering what the easiest way is to get a portion of text from a string for example, you have:
"example1,example2,example3"
And i need to be able to get all three of the items separate:
"example1"
"example2"
"example3"
The length and number of items will change, I'm using a listview subitem
I cant get the objectGuid from a computer via Active Directory.I cant work out the converstion to a string..I have added some code below to show where I am going wrong..It works fine write up until it tries to update the tree view with the "objectGuid".[code]
View 5 RepliesLets say I have a variable: varEmail. It contains a variable equal to the user's email address, so it might contain a value likeNow, lets say I want to get just a portion of the email address, e.g. strip off the domain, like so:
View 5 RepliesI am trying to extract the first portion of a string up to the first SPACE or any non-numeric digit.I thought I could do it but the string may contain an alphabet in the front followed by varying digits of numerals, making it more complicated.Here are some examples of the string to be parsed and the expected results:
String[code].....
I would have to use a series of instr statements but the code would be much cleaner using RegEx.
I have a combobox which is filled with items from a table like this: [Code] What Im trying to do is to when I choose one name from the dropdown list the firstname shall go to one textbox1 and lastname go to textbox2. One way doing this may be to use the ID column wich is the the Primary Key. And do a new search in a button with that ID which fills the textboxes. But how can I get just a portion of the selected string in the combobox to a string so I can do a search on it.
View 5 RepliesI have a sql table with the following fields
ID = PrimaryKey (nvarchar(50))
Name Surname
sample value of ID = RHO-1 How do i automatically increment the numeric portion when adding a new record to the database eg: RHO-2, RHO-3 and so on.
I have a userform in 2008 vb express edition. A part number is created from user input via a concat string. I want to then check if a certain portion of the part number exists in the existing file names in a directory. Below is a more detailed explanation.[code]...
View 2 RepliesI have a problem when I select a portion of a string from a RichTextBox. For instance, if I have the following string: (23*6)+5 and I want to select (23*6) the "+" is also selected. I have search for a means to correct this problem, but I have not been able to find a solution.
View 4 RepliesI have thios code that will load a php file (text file) into a sting via streamreader then its supposed to find and replace a portion of the text and write the changes back out to the file via streamwriter. I put my code together and after running it look at the file and it's unchanged. After looking closer it appears the problem is the find & replace operation I am doing on the string. Here is my code:
[Code]...
How would I go about replacing a portion of text in a text file with a string?
View 1 RepliesI have a strings with different number of characters (30-50). But each string contain only two "x"-characters in different positions. I need code that will extract only a portion of string between the "x".
View 5 RepliesI am working on a small program that reads items from a text file. The items are the split up into data and used to fill the menuItem() as menuItems. Each instance of menuItem has 3 properties (name(string), price(double), and menuType(string)). As an item is selected, it's price is added to the Order collection with :
Order.Add(menuItem(index).price)
The running total of the sum of the selected items is to be displayed in text box. I have,
txtTotal.Text = FormatCurrency(runningTotal()) ' with runningTotal as a function
Function runningTotal()
For Each menuItem As MenuItems In Order
[code]....
However, when run, this error appears. This is new coding to me, so if I'm just way off, let me know. Anywho, I tried with & without the CDbl. It doesn't seem to have any effect.
I have a MyDataGridView.DataSource = MyDataSet.Table(0) and the AllowUserToAddRows = True Once the user have finished typing in the column zero I have to check if they didn't type invalid stuff. It have to be numeric and 4 chars long.
the code is:
Private Sub Result_CellEndEdit(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles Result.CellEndEdit
If e.ColumnIndex = 0 Then
[code]....
And it is not all the time, but depending on how quick and stupid (i'm expecting stupid users, as usual) I click on the previous row or the AddNewRow row I get a the damn System.NullReferenceException on my If line:
If Not (IsNumeric(Result.Rows(e.RowIndex).Cells(0).Value) And Result.Rows(e.RowIndex).Cells(0).Value.ToString.Length = 4) Then I'm really not in the mood of just put a Try Catch, as it looks like bad programming in this case. I've already tried a couple variations with "is nothing" but no success?How could test it won't cause a Null exception before testing the row value?
So i make a program that saves text files in one folder, but what i need is to make the file limit in folder..For example, i have limit 200 files, and when i add a new file, how do i delete the oldest one, or if the limit is changed to 100, how do i delete all the old ones, to make the limit 100?
View 2 RepliesI'm using My.Settings to store some text information which will be displayed to the user under certain conditions. What I'd like to know is whether part of the text (not all of it) can be formatted in bold?
The reason I'm storing in My.Settings is because it can be customized but not to the extent where I need to store it in a database. And while I'm at it, is it possible to format parts of MessageBox text and labels in bold, or is this an all or not at all situation i.e. changing the font property?
I'm currently in a situation where I need to uninstall a certain program from a local computer (and automatically install a newer version of that program), because this old version of the program randomly causes my program to malfunction I have found this article:CodeProject: How to list all Programs installed on Computer and Uninstall Them . Free source code and programming help This shows how to start the uninstall program for the programs I need to uninstall, which is a good start. I also have created all the code needed to install the newer version of the program But as this program will be used by users, I want to minimize the number of times the users has to do something. So far the only popup that I haven't been able to get rid of is when the uninstall program is being run how to force it to uninstall without having the program ask for confirmation?
View 4 RepliesI have searched the forums and although i get hits on my searches no matches have answered my quandary. I am using visual studio 2008
So to the question: I have 10 label's named label1, label2 label3 etc. and i have a dataset with 2 fields and 10 rows (2x10) i would like to create a for loop like the following:
for x = 1 to 10
label(x) = ds.row(x).field(0)
next
i want an application (i do not care if it is a web app or a desktop app) that i will insert a mp3 file and a .txt list of phone and it will automatically call each phone one by one and will play the recorded message that will exist in the .mp3 file.i also want to be able to see how many phones that the application called answered the phone and how many did not.Topic closed for blatantly violating the rules. If you "want an application", post a request in the "Post a Job" forum. [rules][/rules]
View 1 RepliesI am making a custom file explorer, and I am trying to make back and forward buttons, all I need to happen is when you hit back, it returns the last directory you were in, when you hit forward it returns the directories you were in before hitting back, and when entering a new directory, it erases all of the Forward data. I am not sure how to accomplish this
View 2 RepliesI have a program with which I can open a second form on a beamer, this works perfect, but what I do notice it that on the taskbar (I have windows 7) I see the main icon of the app but also the form that is created.What I would like is that the second icon is not displayed on the taskbar thumbnails, this way I can't close the second form by the X but only by a button on the main app.
View 2 RepliesI spent some time with data modems till I realized it's a voice modem that I'm going to need in my application. I see that there are some other commands for a voice modem, although nothing very elaborate. I would imagine you make the call as you would in a data modem ATDT etc and it looks like there is really just one command to send audio...
AT+VTX
AT#VTX
Not sure what this is all about except maybe just different standards? Still not sure about how to detect when the call is answered though. I won't be talking to another modem. Maybe the serial port itself has a pin change or something? You would think there would be a bit "somewhere" that the modem would generate when it quits ringing. I may have build my own outboard box to do this. (easy enough -- probably more reliable too -- modems sure need rebooting a lot it seems).
Here is the goal though --Voice modem calls out, call is answered, and I inject my audio from the PC sound card for a minute or so and then tell the modem to hangup.
How can I only add the decimal part of a number to another one?
example: if a number is A = 10.25
Then X = 30
Y = X + 0.25 (Here it added 0.25 which the decimal only NOT 10.25)
Another example, If X = 16.35, A = 102.001
Y = 16.351
I'm trying to look in the program files for a directory(the gimp directory). I could hard code it but they change the file name and the exe name with the versions. So I only know that the folder contains the word gimp. How do I search for it only knowing a portion of the file name.
My.Computer.FileSystem.FindInFiles(Environment.SpecialFolder.ProgramFilesX86, "gimp", True, FileIO.SearchOption.SearchTopLevelOnly)
This is the code that I've tried but it just doesn't work.
I have a drawing image, Dim DrawingImage as Image = My.Resources.Img, which will be drawn on my form. The DrawingImage is supposed to be 64x64, but the Img.png is 114x114. How can I get this DrawingImage to stretch so that there is no cut off portion?
P.S. Is there a way to BringToFront this DrawingImage?
I need to retrieve a portion of xml into a datatable
<Product>
-<productID>123</productID>
-<productName>123</productName>[code]......
Now Under product tag there are ProductID, ProductName and ProductFeatures.Under ProductFeatures tag there are three "productfeaturetext" tags.I only need to extract "Features" tag into a datatable to loop it, how this can be done ?
What I would like to do is to be able to save a portion of the screen, from Start_X, Start_Y to End_X, End_Y, and then use it as a resource as follows:
DrawImage(SavedImage, New Rectangle(Start_X, Start_Y, End_X, End_Y))
I have a picturebox. I want to at certain points take a screenshot of whatever is in that picturebox and write it to a bitmap variable.The images in the box will be of varying sizes and i will be tracking the sizes using image.height and image.width. I would like to use those to define the area for my screenshot.
View 14 RepliesHow do i access another user's registry portion in win XP?how do i access another user's HKey_current_user on my machine, in vb2005 or if someone can recommend a software that can already do it.Im trying to make a quick registry repair tool to fix a damaged or corrupted user
View 2 RepliesI have a third party GIS tool that I'm using to view maps with. Occasionally we have to take a snapshot of a portion of the map and dump it to a bitmap. The third party tool has a function that will give me the upper left and lower right coordinates of the area selected on the map. These coordinates come out as system.drawing.point objects.
The two point objects are then used to generate a new system.drawing.size object that will give the height and width of the area selected. The height and width values are passed to the constructor for the system.drawing.bitmap.All this works fine most of the time. Sometimes, however, when the user selects a particularly large area, the bitmap constructor bombs with a 'parameter is not valid' error. There isn't any documentation on this error, but I'm assuming it means the height and width are too big.
So what I'm wondering is... is there some way to check my height and width values prior to creating the bitmap and make sure they are in acceptable bounds?
Assume I have a form that has say 5 text boxes and I need to pull some data from a database then set those 5 text boxes with that data.So assume I have 3 basic layers: the code behind for a default.aspx page a BLL class that contacts the DAL and a data access layer (DAL)But I've heard and read that the default.aspx page should not know about sqldatareader, in fact you probably dont want to add the sqlclient namesspace to the default.aspx code behind page. [code] Then the BLL would simply call the DAL to call a stored procedure in SQL Server and do a CommandObject.ExecuteReader, get the results pass it back to BLL and BLL would then send it to the code behind page of default.aspx.I can provide full source code if that doesn't make sense. My question is if its bad that default.aspx actually declares and knows about an SQL Data Reader then what is the better way to do this? What datatype should I be using to avoid having an sqldatareader in my interface code ?
View 2 Replies