VS 2008 - Pointing To A Label With Variables
Oct 5, 2011I have a piece of code that returns no error but doesn't do what I expected. I want it to "select" a label then assign it a new .text value from a DB
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I have a piece of code that returns no error but doesn't do what I expected. I want it to "select" a label then assign it a new .text value from a DB
[Code]...
I have a balloon tool tip and want to show it as follows:
vb
Dim CompleteTooltip As New ToolTip With {.IsBalloon = True, .ToolTipTitle = "Title", .ToolTipIcon = ToolTipIcon.Info}
CompleteTooltip.Show("Click close to confirm changes", btnClose, CInt(btnClose.Width / 2), CInt(btnClose.Height / 2), 5000)
i would have thought if i specify that i want a balloon tooltip the point that i specify would be the point that the balloon points to - NOT the upper left point of the tooltip itself... how can i specify the balloon point rather than the upper left point?
I have a series of labels to modify through a loop. here's an example of the code i need to modify
lbl1.forecolor = color.black
lbl2.forecolor = ...
I need to iterate the lbl number each time through the loop as the color value will change from label to label.Clueless on how to do so with a loop vs the "long" way of doing code for each separate label. I have 169 to modify each time I change input so I'd rather not unless I have to
I am trying to add 2 variables and the result to appear in a label.The case is that there is a platinum version of an album which costs more. The extra cost depends on the album so it varies.If the user wants to purchase an ordinary and a platinum album then I must add the two variables and the combined price to appear in a label. The normal and platinum prices appear fine when the other is zero but when I increase the quantity on both the label remains blank.I have an if statement like this:
If PriceNormal >0 and PricePlatinum = 0 Then
lblPrice.text = PriceNormal.ToString("C")
End If[code]......
I made a simple textbox with a submit button and a label and when you type in something into the textbox and hit the submit button what ever you typed in the submit button is suppose to show up in the label box but i type in DaFallenAngel in it and it only shows D why is it only showing D and not the full name? [code]
View 9 RepliesI need to get the address of an integer and assign it to an IntPtr to use in an API.[code]...
View 3 RepliesLast year (2010) I came across a FANTASTIC command that allowed me to take a string of variables with a common delimiter and break it all back out into separate variables (possibly an array) with one statement.
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As long as the delimiter was a unique specifiable character, this one-statement command could break it out into elements. my memory and point me in the right direction.
I have some assemblies that were developed using .NET 1.1. These are business layer assemblies that are required for other .NET 1.1 applications to work. I have been developing our new applications using .NET 2.0/3.5. I would just convert the business layer projects over to 2.0 and be done with it, but those old 1.1 applications just won't die.As such, has anyone ever had two different .vbproj files (one a .NET 1.1 project file and the other a .NET 2.0/3.5 project file) that pointed to the same set of files so they could be compiled appropriately?
View 2 RepliesI am creating an Advanced menu DLL, But how can i Rotate a Picturebox so that the Top is Pointing towards the Mouse Cursor?
View 6 RepliesI have an xml document on the internet right. Lets say it contains:
<tag>goose</tag>
What I want to do, is when the user clicks a button in my vb form it looks for the "tag" tag and finds the text inside the tags which is goose. Then it sets a label to equal goose, or whats in those tags.
I made a simple program with a database connection:
Dim con As New OleDb.OleDbConnection
Dim dbProvider As String
Dim dbSource As String
[Code]...
Now I heard from someone that in order to make an application with a built in database, I should place the file inside the project.
C:UsersUserdocumentsvisual studio 2010ProjectsmyProjectJIMMY.MDB
How do I make the directory dynamic? So, wherever I place the published application, will it work?
I've implemented the localization in my windows application with no problem for the label or command button which have a fixed text.
My problem is related to the label which text is merged with some variables or object properties.
E.g.: vb label1.text = "There are " & myDataGridView.Rows.Count.ToString() & " items"
So, how can I set (if it's possible) the localization for these labels? I've this kind of assignment in modules and not in the form. It's possible to set a resources file also for modules?
I have code, shown below, that works all except for 1 thing: The variables being passed byRef get passed, but once modified in the else section of the "if me.invokerequired" code of RecordData, the variables are never updated in the calling function. To reiterate, the calling function does not receive the updated data that is in the variables custid and amt.When debugging, I see the data change in the else section of "if me.invokerequired", but once it returns from the callback the data is missing.[code]
View 15 RepliesI define some global variables of a class as follows:
Private Class MyClass
Private var1 as Decimal
Private list1 as List(Of string)[code].....
But I found that after this form is closed, all above variables, var1, list1, list2 still exist in memory. I thought they should be collected by gc since the form is already disposed as I confirmed.
Add: I have monitored half an hour after the form is closed. But these variables are not collected by gc. I have an automatic update procedure on the form which uses above variables.Since the above variables still hold values, the automatic update procedure is always called which causes exception. (One quick fix is to check if form.isDisposed in update procedure. But I do not think this is elegeant. Besides, these variables occupy memory.)
Does the memory used in declaring variables are reclaimed by the OS when these variables go out of scope?Does the memory used be released by setting thier value to nothing? if not, then how can I force the garbage collector to run or excecute at a certain/desired time..How about in Windows Forms..How can we make sure that the memory used in initializing and showing forms be released if those forms were closed?
View 13 RepliesQuestion 1: What is the difference between "Background Worker" and "Worker Pool" as indicated within the MSDN samples provided.
Question 2: I noticed while using, AddressOf _Function_, variables cannot be passed; what would be an efficient solution to this?
Question 3: While using multithreading is it required to invoke before setting variables, or only form properties?
Question 4: While using System.Net.Sockets is it safe/efficient to use Application.DoEvents while waiting for new data; or would be using a Do While loop be fine without DoEvents since the action would be multithreaded? Note: there can be up to 2000-3000 sockets in use at a time.
I'm new in .NET programming.I have a class Form1 that includes Button1_Click event.Button1_Click creates a multiple Text Boxies at run time)Here is the class:
Public Class Form1
Dim shiftDown As Integer
Dim counter As Integer
[code].....
How do I access the resources I created in the Tools/Properties/Resoruces section? I can't remember how to do this?
View 3 RepliesI got this in my SQL statement. I "BOLDED" the problem.SELECT OrderID, CustomerID, EmployeeID, OrderDate, RequiredDate, ShippedDate, ShipVia, Freight, ShipName, ShipAddressShipCity, ShipRegion, ShipPostalCode, ShipCountry FROM Orders WHERE CustomerID =@CustomerID
View 5 RepliesI have a class that does four things: unzips and zips files, downloads and uploads files. It needs to complete all four actions for 9 different command line apps. Which means, unfortunately, that there needs to be 4 different strings for each time. All in all, I need to create 36 strings which are different command line arguments. I need to figure out the best way to accomplish this. Should I just create all 36 strings in the class? Or should I use a constructor? Or... properties? Maybe a structure?
View 1 RepliesI have this little code here in vb 2008, I created a flag var to see if the user has clicked the button "enter" so the flag would be set to true. If its true then the game would begin...
I have a label that says "Press enter to Play", and if the user presses play the flag is true, the label visible is set to false. I have the keydown event to check if the enter button has been pressed, i checked if it works and it does, but the var of the flag is always false in my other subs...
Thats the thing with vb i dont understand is when you make a public variable, and when you change the value of the var in a sub, it doesnt change globally.
CODE:
I got this in my SQL statement. I "BOLDED" the problem.
SELECT OrderID, CustomerID, EmployeeID, OrderDate, RequiredDate, ShippedDate, ShipVia, Freight, ShipName, ShipAddress, ShipCity, ShipRegion, ShipPostalCode, ShipCountry FROM Orders
[code]......
I am making a program where in form 1, the user inputs data, and the data is used in form 2.[code]There are 12 number boxes and 12 text boxes. I also tried to use a label (label 4) to test if i could even use the variables on form 1. I can't. When you press the button, It clears the text box, and removes the label.
View 6 RepliesI'm trying to get a handle on creating my own Interfaces for a project I'm working on. I know the MSDN help shows that all member signatures will become Public when implmented, etc, etc. However, if I implement the IDisposable interface provided by the framework, comments and private members and fields show up! Not only that, but some of the methods have comments and code within!
How did they do that? And can comments, private fields and members, and predetermined code be declared as part of an interface by the average developer?
the datagridview seems more complicated the I thought it would be my problem is: how can I if I added three columns to my datagridview, let the program insert something with 2 variables and in the last column i would have to do some calculations with the column2 (like the sum of all rows in column2)
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I have several classes that use a bunch of strings for directories, arguments, etc.
At the moment, they're all just declared globally within the class like so:
VB.NET
Private str1 As String = "path"
Private str2 As String = "path2"
Private str3 As String = "arg"
To me, that looks awful and doesn't seem like the proper way of doing things. So, I was thinking, should I make a property for each string and then use a constructor to initialize them?
Would that make a difference at all? Is that the proper way of doing things?Also, some strings are used in a ton of different places and they're basically just being copied from one class and pasted into another. So, do you think I should do what I suggested above, but with a class whose sole purpose is to house those strings so that the code isn't duplicated a million times everywhere? Would that be the most efficient way of doing things?
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vb
For X = 1 To 3
AddHandler LabelX.Click, AddressOf Action_Command
Next
[Code]....
code snippets adapted to show the correct way of going about with this and perhaps explanations of the underlying concepts also.
How can i make variables stay true even after i close my program so on next run there still true?Heres the Code i am using to set the variable (if it helps) :
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim Activated As Boolean
If Activated = True Then
[code]....
BTW this is to check if the product has been activated or not.
I have 10 variables, how do I save it into a txt file with each variable a line?
View 9 RepliesI have a txt file and what to read it in a variable in vb.netSo for example :
txt file contains:
Name=Tom
Code=23423
[code]......