Saving A Concatenated String For Next Startup?
Feb 21, 2011
For my application, there is a login form in which users have the option for it to "save the login information" Kind of like MSN or other websites in which you go to a login page an the information is filled out. On my login form, I am using this code for my checkbox which is to "save login info"
Private Sub CheckBox1_CheckChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox1.Click
Dim s As New System.Text.StringBuilder
[Code]....
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Jan 17, 2011
I have a concatenated string like...
str= 1010,5050,6079
And want to separate the string In Javascript I can do
string = Srt.split(","):
and the result...
string[2]=5050
Is there a way to do this in VB.NET?
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Aug 15, 2011
I'm suppose to end up with a label box with my name spelled out in it using string manipulation. This is suppose to happen using the concatenated string to output the name into the label box. I don't have any error codes but I also don't have my name in the label either. [code] "Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors now use Lorem Ipsum as their default model text, and a search for 'lorem ipsum' will uncover many web sites still in their infancy. [code]
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Jun 25, 2011
I am writing a tool that logs stats for a first person shooter game. The game writes its information (including who killed who with which weapon) to a log file, which I read every so many seconds and parse so that I can write that information to a database.I am now having trouble parsing the weapon out of that string of information.
Some additional information is required: a weapon in this game can contain attachments (such as a scope, a grenade launcher, etc). Weapons can have either 1 or 2 attachments. Some weapons however cannot have any attachments at all.
Each log file entry that describes a kill contains a code that describes the weapon that was used. This code is a concatenation of either 3 or 4 parts:
<weapon>_<attachment>_mp
<weapon>_<attachment1>_<attachment2>_mp
where <weapon> is a code that describes a weapon and <attachment> is another code describing the attachment.This should be easy to parse by just splitting along the underscore characters, but there's a few catches:
1. Some attachments are able to kill players as well. Specifically: grenade launchers, flame throwers and underbarrel shotguns. In this case, the attachment is listed before the weapon:
<attachment>_<weapon>_mp Note also that in this case there is always only 1 attachment.
2. The biggest catch: some weapon names have an underscore in them (some even have 3 underscores)! So simply splitting along the underscore won't work in all cases; if the weapon name contains an underscore I'm splitting the name of the weapon..This makes the list of possible combinations a lot longer. The ones I can think of (I think these are all):
[Code]...
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Jul 13, 2010
I am trying to programatically create textboxes in my app. I need to do this:
dim textbox(x) as new textbox
x needs to loop 1 thru 10 but I can't get VB to accept my coding.
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Jan 31, 2012
I have a dictionary that I want to access with a key that is the combination of a string (AcctNum) and a date (BalDate).It seems to me the simplest approach is to create the key by simply converting the date to a string and concatenating:MyKey = BalDate.ToString & "|" & AcctNum
I know I also have the option of creating a composite key by writing a separate class and overriding GetHashCode() and Equals() a la this solution. To me, the concatenated string is a simpler, if somewhat less elegant, solution. Am I missing some compelling reason why I should go with the composite key class approach?
This lookup is the crux of the project I am working on, so performance is my main objective (with readability a close second).
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Dec 8, 2009
I'm creating a text box with auto-suggested. So, it works well. It suggests only first name, but I want it to suggest the full name (first and last name which two different columns). Take a look at the following code behind that worked as expected :
[Code]....
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Apr 27, 2012
I figure I should use 'Aggregate' but apparently I am getting it wrong First I get a list of my Entity objects Dim employers As List(Of myEntity) = (New XXXX()).getZZZ(userName, userType) Then I figured this would be a way to put all the names in a string Dim names as String = employers.Aggregate(Function(current, [next]) current.Name & " " & [next].Name)
[Code]....
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Apr 19, 2011
Hello,
I wanted to make the application to count how many times it has been runned..so I could make something like a restriction. You know..like run 10 times and get full version.. anyway..I did not find anything to count the startups..so I tried to make the application to create a folder on startup and save a empty file to it and count how many files are in that folder and display it in label which will say ' Application started for ' + files in the folder + 'times'. I think It could work but I get stuck when I want to save the empty file..I even made a RichTextBox for saving it but it just don't save even if I put text in the textbox..it just create the folde. I have made other Apps which creates folder on startup and then a timer which will save the file every X mins and it worked I even copied the code from that project but still it isnt working... Ill post my code below please help me.
Code:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim SAPI
SAPI = CreateObject("sapi.spvoice")
SAPI.Speak("Welcome and Have Fun.")
System.IO.Directory.CreateDirectory("D:Sys")
Threading.Thread.Sleep(50)
RichTextBox1.SaveFile("D:Sys
fo" + TimeOfDay + ".txt")
Dim s As String = "D:Sys"
Dim d As New System.IO.DirectoryInfo(s)
Dim intFolders, intFiles As Integer
intFiles = d.GetFiles.GetUpperBound(0) + 1
Label6.Text = ("Program Started for " & intFiles.ToString & " time(s).")
End Sub
I tried to put the saving to a timer and it seems like somethings wrong with the saving :
RichTextBox1.SaveFile("D:Sys
fo" + TimeOfDay + ".txt")
..I am sute that it should look like this if I want to save a file which name will be the time it has been saved...or am I wrong?
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Feb 12, 2012
Currently I am saving data from my applications by saving a text file via a stream reader as a string. I have come to a problem. In my current application, I have an array of the following structure:
[Code]...
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Mar 29, 2011
I have created a project in VB.net in which i have used SQL database connectivity
connection string of my project is stored in project properties > settings in the way
<connection string name>, <type>, <scope>,<actual connection string>
I want to provide that connection string dynamically at the startup of my applicaion
Hence the connection string stored should be changed dynamically at startup
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Jun 20, 2010
I can hide my startup form (or make it appear hidden) on startup. I can start my app on windows startup--through registry values--if the user checks a checkbox.
But if the app starts up on windows startup, I want the form to be hidden, so the program can just keep working without bothering anyone. If it starts up because the user started it, I want the form to be showing, because the user probably wants to change some settings or something.
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Jun 3, 2011
My code is:
sqlsub = "SELECT distinct field1, field2"
sqlsub += " FROM tbl I
Dim da As OleDbDataAdapter
Dim lsdataset As New DataSet
[code].....
My prob is how should I bind the combo with field1+"("+ thpr+ ")" thpr is the string i get from function by passing field value 2 from query my combobox should be displayed as field1 + (thpr).
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Aug 6, 2009
Following code sample should concatenate the value. Concatenated value has to be assigned to variable AlphaStr. But result is always null in the variable AlphaStr.
[Code]...
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Nov 6, 2009
I'm creating window application with VB.NET and flatfiles.the problem is how do i store the connection string in the app.config file that include the application.startup path?
<add name="cn" connectionString="provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Application.StartupPath + "data;Extended Properties=text;" />
i got some error when writing to app.config.
"Missing attribute value on attribute 'Application.StartupPath'."
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Jun 2, 2011
How do I display the concatenated records in my combobox? I have the following codes
Private Sub frmAssignSubjects_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If cnn.State = ConnectionState.Closed Then cnn.Open()
If rdoHS.Checked = True Then
[code].....
What should I put in the DisplayMember and ValueMember? If I will not concatenation, I just use "LastName" and "IDNO" in my DisplayMember and ValueMember respectively then records get to display in my combo.
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Mar 4, 2010
How to make an Application to startup at the system startup? and How to enable and disable?
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Jan 31, 2011
MY TABLE
sample comment1
sample comment2
[CODE]...
if sample column value is the same, i want all comments value to be concatenated
do while dr.read
listbox1.items.add(dr.getstring(0))
[CODE]...
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Apr 2, 2011
I need to sort the values of my listbox to have the latest date on top plus some text. here is the code I'm using:
[Code]...
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Apr 23, 2011
I have a label that reads a random line from a text file and that string becomes the text for the label.
Now the problem; the label will only work if it is clicked because the event handler is click.What I need is this to work automatically at startup. In other words, it should change the label's text to the random string of the text file on startup of the application.
Here is my code.[code..]
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Jun 9, 2009
in a winform how do i get one of those fancy windows "save file as" dialogues to appear so that the user can save a string as a file to a user-specified location on their hardrive?
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Nov 11, 2009
i deleted my previous start up form to be replaced by another one but each time i launch the application,the deleted start up form is still displayed.i dont know from where this deleted start up form is being loaded.
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Apr 3, 2011
in my Few small projects i have been using this code for connection to database in every forms.
Dim con As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|YTCARGO1.mdb;Persist Security Info=True")
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Oct 27, 2009
i would like to ask where is the best place to save a mysql connection string.i want to be able to change the connection string(host,username,password) during runtime so if the server changes IP address i can change it.
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Jun 2, 2009
I want to save a string of text to a file every 1.4 seconds or so, and each day at midnight I want to create a new file for the days log data so I keep the file size down. The file stays open the whole time so that it is ready to accept data from several different forms which call a function (SaveToVoltsLogFile(str)), so I open it at module level like this:
Dim fsVlogStream As New FileStream(EVENT_LOG_PATH & VOLTS_LOG_FILENAME & DateString & ".ip", FileMode.Append, FileAccess.Write, FileShare.Read)
Dim swVlogWriter As New StreamWriter(fsVlogStream)
Now each time I call a function SaveToVoltsLogFile(str), the str data gets saved to the file:
Friend Sub SaveToVoltsLogFile(ByVal str As String)
swVlogWriter.WriteLine(str)
swVlogWriter.Flush()
End Sub
But by opening it this way, I cannot call a sub to close it and open a new file for the next day because putting the Dims into a sub means that the file is out of scope to other subs/functions, so my Save... sub won't work! So, what I think I need is a separate sub to open the file, another sub to close it, and another to write the str data. But how do I do this and keep the file in scope to all subs?
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Apr 7, 2011
Essentially what I'm trying to do is to save the value of a string() to a cell in the datagrid view. The problem is that when I close the program and reopen it the changed value isn't there... It's not saving properly.
Here is my code.
Dim BOCHURSTOTAL As Double = ((BochurimBindingSource.Current("Give_To_Bochur_Quant") * (bochurpr)) + _
(BochurimBindingSource.Current("Reg_Quant") * (regularpr)) + _
(BochurimBindingSource.Current("Priv1_Quant") * (private1pr)) + _
(BochurimBindingSource.Current("Priv2_Quant") * (private2pr)) + _
(BochurimBindingSource.Current("Priv3_Quant") * (private3pr)))
DataGridView1.CurrentRow.Cells("DGV1TotalColumn").Value = BOCHURSTOTAL
Me.Validate()
Me.BochurimBindingSource.EndEdit()
Me.BochurimTableAdapter.Update(Me.PuterDataSet.Bochurim)
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Jul 24, 2009
1.is it possible to save the database connection string to the textfile so that user would be able to know where the database is stored?
2. Any way to let the user decide where the database is stored? Since usually we, the programmer write the database connection string ourselves..
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Aug 2, 2009
I would like to enable my app to run from a central database, but I dont want to recompile should the DB server change. Are my only two options saving the connection string to an XML file or the registry?
If so I think the XML file will probably be the way I go at least for me. I dont really want to mess with the registry. I just wanted to check what my options are.
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Apr 16, 2011
I have a problem. I'm working on this advanced web browser with my friend, and we made a favorites feature. So, it works and all that, but, after I close the executable file, it doesn't save anything!
Ex:Starting Up, adding Google as new favorites, then closing the browser. Starting up again, 1 hour later, but there's no Google Here's what I put for saving the favorites (please do not steal the code Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
[Code]...
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Mar 9, 2009
rewriting a class I use for saving Treeview data to a XML file for use of saving ListView data I can't really figure out the rewrite, I'm stucked, unfortunately Listviews seems to be a big problem for me in general.
Option Strict On
''' <summary>
''' The TreeViewDataAccess class allows the nodes within a TreeView to be
''' persisted to xml for later retrevial.
''' </summary>
[Code]....
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