Permanently Store String/object?
Apr 23, 2011
I need to permanently store a string or maybe a object in my application. And yes, I have tried the application settings (My.Settings).
My.Settings.something = "hi" will save "hi" into something, and when i use msgbox to output the data, it works. The thing is; when I copy my application to somewhere else on my computer it is gone. I guess the settings is saved to some file at the filesystem, and when I move my file it also creates a new settings file. How can I store a string inside my application, and also move the application later on?
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May 17, 2009
I'm trying to figure out how to do this as I'm not sure what's the proper way of doing this.
I've got several strings that I want to store/save permanently, even after the application is closed. How should I proceed? Do I read or write from a textfile?
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Jan 22, 2009
I have a module and form. Module has a structure.
[Code]...
Actually values are not stored in that array list permanently. its storing temporarily and then destroying. i want to store that values in that arraylist permanently.
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Feb 19, 2009
i know that integer is a variable to store whole numbers and that a string is a varialbe used to store any text, but what variable type would you use to store a number that has decimals?
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Feb 26, 2009
I wish to store, and recover some simple object in the register, a Class MyWindows Friend MyPlace As
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Oct 15, 2009
i have several classes / objects from it in a program that hold data like clsAddress with properties id, city, zipcode, name, and clsMyData that contain id, datafield1, datafield2, datafield3 and many more (just examples) I want to have methods in the objects to load the object from and save the object into a database, like me.loadFromDb and me.SaveToDb Of course i can do creating db tables like tAdress, tMyData, ... and in the methods do select / insert statements like "insert into adresses (city, zipcode, name) values(me.city, me.zipcode, me.name) etc. BUT - what i dont like is a) i need to build this loadfromDB / saveToDB Methods for every class separately and b) whenever i alter a class, i must alter the DB structure and the methods.
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Mar 22, 2012
I am coding a program that will allow the user to input 5 payrolls for Store 1, Store 2, and Store 3. The total of the 5 payrolls are then added together and shown in the respective Store's labels. A total label is also there to add up all the totals into one number. The numbers in the label must be in currency form. My problem is the numbers don't add correctly when I hit calculate. The first two numbers add together, but then after that the number just seems to subtract a random amount.
So far I have this --
Public Class Form1
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Close()
End Sub
[CODE[...
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Feb 8, 2012
I like the PHP way of doing things but, it seems I am stuck with using a Collection of Object's to store/retrieve the data I need. I have my Collection loaded with my Objects's and the code to iterate through the collection, my problem is I am unable to retrieve the "key" as it would be called in PHP (I believe in this case it is actually the name of the object).
Consider the following example:
Dim xDoc As XPathDocument = New XPathDocument(fName)
Dim xNav As XPathNavigator = xDoc.CreateNavigator()
Dim sender As XPathNodeIterator
[CODE]...
As you can see, I am navigating an XML document, and creating an Object with some Key/Value pairs. The Object would look something like this if it were in JSON:
{"name":"John Smith","address1":"123 Anywhere St.","city":"This City","state":"FL"}
When I iterate though the Collection I can only get the value of the object, but I need the Key, in this instance I want "name","address1","city","state" to be stored in a variable for each iteration.
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Mar 30, 2011
There is an OLE object column that contains images in my access database. I'm trying to create a program that reads the images from that ole column and store the images to a file. Currently, I have a program that creates an image file but the image is blank.[code]
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Feb 24, 2009
is there any collection in vb.net which store object as byref and not byval.
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Jul 3, 2010
I am using VB .Net for this, so I don't have access to var or this would be a simple matter.Right now my query is as follows
[code]...
So I used this query in LinqPad to help me determine what the object would look like. I got back a IOrderQueryable(Of RSError) which then contained a IGrouping(Of String, RSError) for each grouped collection of objects returned by the query.However I ended up with the current object type of errors as IOrderedQueryable(Of IGrouping(Of String, RSError)) because of the cast error I am getting in VS.
[code]...
I'm not sure how to get rid of the VB$AnonymousType_1 Part of the returned object.Am I even on the right track here or am I missing something completely?
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Apr 12, 2012
In the mvc 3 music store example they do the following.
Public Class Album
Public Property GenreId AS Integer...
Public Overidable Property Genre as Genre
End Class
Entity framework seems to be pretty slick and picks up that GenreId is the PK for the Genre table. So the SQL table for "Album" has GenreId as a column and when we load the album storeDB.album.find(x) it will also load the "Genre" entity. My question is, what if we wanted to have a second object of the same type. so for example, what if each album had a primaryGenre and a secondaryGenre. i would think that we could do something like this.
Public Class Album
Public Property MainGenreId As Integer
Public Overidable Property MainGenre As Genre
[CODE]...
And i have also tried this...
Public Class Album
Public Property MainGenre_GenreId As Integer
Public Overidable Property MainGenre As Genre
[CODE]...
However, none of these options are working properly. can anybody point me in the right direction such that when i load the album through storeDB.album.find(x) it will automatically populate the MainGenre and the BackupGenre?
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Sep 21, 2009
Under component services, a COM+ component is used by the company, right-clicking it and choosing 'Activation' tab will show the 'constructor string' that is used for DB server connection by all applications. How can I access it the simplest way possible?
[Code]...
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Nov 12, 2010
I have a class library that contains a number of classes. I would like to dynamically create an instance of one of these classes, set its properties, and call a method.
Example:
Public Interface IExample
Sub DoSomething()
End Interface
Public Class ExampleClass
[Code].....
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Sep 8, 2011
I'm trying to setup a WCF web service to be consumed by JavaScript using JSON and jQuery.I've noticed that you can send JSON without a DataContract if the service method parameters match the naming structure of the JSON object:
<ServiceContract(Namespace:="http://foo.com/bar")>
<AspNetCompatibilityRequirements(RequirementsMode:=AspNetCompatibilityRequirementsMode.Allowed)>
[code]....
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Apr 19, 2012
Dim db As New DataClasses2DataContext
Dim newvet = From n In db.vets Select n.vetid Distinct
(Label1.Text = newvet.Count.ToString)
this is the error message I am getting:Object reference not set to an instance of an object.
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Aug 11, 2009
dim myCollection as new Specialized.StringCollection
dim myFoundThings as new ArrayList
dim index as Integer
dim newResultMemberName as String
[code]....
This is part of some code that will run without user interaction once it's spinning away, and I need to create a unique object from some items found in a StringCollection, naming the objects using information found in the strings stored in that StringCollection.
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Dec 6, 2010
how to store string value in date variable in vb.net
i am using the following code
dim dtBL as Date
txtBLDate.text="23/11/2010"
dtBL = Format(CDate(txtBLDate.Text), "MM/dd/yyyy")
but i am getting the error which says that 'Conversion from string "23/11/2010" to type 'Date' is not valid.'
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Feb 11, 2009
I want to store in a string the name of a component without using the component itself. I tried the following
Private Sub CmbPriceList_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles CmbPriceList.KeyUp
Dim test As String = sender.GetType.Name
End Sub
The above code returns the type of the component (here it returns 'Combobox'). But I want the name of it.
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May 14, 2009
I want to store some string information in my application exe. The information should not be lost in when the application is closed or restarted. It should be like editing a text file in application resources.
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Jun 21, 2010
I was wondering how you can copy information (from a webpage, for example) and store it in a string?Also, how would I take only one word of the string if there are spaces between words and I will always be removing the word with the same location in the string (for example, the last word in string).
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Jan 6, 2012
I want to get value from datatable and then store it to the string() arraylist. datatable contain 3 column (columnA | columnB | columnC). I want to get all value from columnB and store it to arraylist.
I have try something like this
If myTableData.Rows.Count > 0 Then
For i As Integer = 0 To myTableData.Rows.Count - 1
Dim value() As String = myTableData.Rows(i)(1)
[Code]....
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Mar 11, 2010
I'm stuck regarding to grab connection from app.config file...i'm surf many type and kind to do it..but still can',t.....i need to connect into two database (oracle n firebird).
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Nov 12, 2010
I am working on a VB.net winform application which makes extensive us of a mssql database. For the most part (almost exclusively), I have used the Visual Studio dataset for accessing the data. This means that the connection string was created as a program setting, and is saved in the app.config file. The problem that I have, is that I need to move this connection string to the system registry because it has been deemed by the powers that be that a config file is not secure enough.
I think that I can figure out how to access a registry key, and I know that I can save the string to a registry key, but the problem that I am running into is that I don't access the connection key in the code anywhere to easily swap out the registry key for the existing program setting. When VS creates the connection and dataset, where is the connection string referenced? Is there a simple way to swap these out? is it possible even to just reference the registry key in the setting so that I don't have to find where the setting is used and switch it out?
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Feb 22, 2009
Is there a more efficient way of doing this than adding &""""& for every double quotation mark in the html code when building the string? I need to store the HTML code as a string. I am finding "[tablerow]" within an existing document with StreamReader and want to replace it with my string value (html code) when writing it back using stringwriter.
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Feb 17, 2010
I am working asp.net for a few years. In asp.net, database connection string is stored at web.config file. All page can share this connection string. Now, I need to learn how to create windows app. Where to store a connection string, e.g. connect to SQL, to Access DB, so that all windows forms can share it?
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Feb 22, 2010
I'm using this code to store korean string in my database:
Dim username As String = Request.QueryString.Get("Some Korean String")
Using dg As New DataContext()
Dim newfriend As New FriendsTable With {.AskingUser = User.Identity.Name, .BeingAskedUser = username, .Pending = True}
dg.FriendsTables.InsertOnSubmit(newfriend)
dg.SubmitChanges()
end using
Checking my database, the username stored is a string"????"...
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Dec 14, 2011
I have a question about static strings and so forth, in an ASP.NET MVC.I need to hold a string(a value), when the user goes through the application.Problem is, I feel like that would be a violation to the MVC. I just need to store a string per user, so it seems like a violation to the MVC separation.
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Apr 1, 2009
I just want to know what is your suggestion about storing database connection strings in .NET? I am using My.Setting usually, but now I am facing with versioning of my application. When I upgrade my application to higher version the value in My.Setting has been changed, it didn't remain as user has set before, but changed base on my machine's setting. eg. the value in My.Settings Version 1.0.0.0 (User's computer) is 'ABC' When I develop again some new feature on my machine and set its version to 1.0.0.2, of course the connection string in my computer's My.Setting file is different with User's computer's My.Setting. So when I copied my recent updated file to use's computer, then run the application, the application read the new My.Setting file from my computer but not from their computer. the value in My.Settings Version 1.0.0.2 (Developer's computer) is 'DEF' Therefore I have to reset and reset their connection strings onve I updated their application, that's too annoying?
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Jan 28, 2010
I have a config.txt file that has the following lines in it.
[MUSIC_PATH]=X:MultimediaAudio
[MOVIES_PATH]=X:MultimediaVideosMovies
[SHOWS_PATH]=X:MultimediaVideosTV Shows
[code].....
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