Change/delete Item From Form, Who Was Created As A Non-global Variable In Rum-time

Nov 4, 2009

I have created a picBox inside a function, this function then adds some properties to it and then adds to: Me.Controls.Add(thisarray(count))

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Global Variable Can Be Created During Runtime?

Jul 16, 2009

global variable can be created during runtime?

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.net - Value Of Global Variable Won't Change

Dec 22, 2011

I have a variable whose scope needs to be global, because it needs to be called in a function as well as in a button press. So I declared the variable in a Module so it would be global.The problem is that the value of this variable needs to be equal to the value of the text property of a textbox in the form.You enter a string into the textbox, in this case I entered "Hello". Then you click the button and it displays what you wrote.You click OK in that message box and change the value in the textbox. In this case I changed it to "Goodbye". Then I hit the button again, but the variable did not change values and the messagebox displays "Hello" again.

[code]....

Here is the entire source code:

Module Module1
Public strDataValue = frmTest.txtDataValue.Text
End Module

[code]....

Note: This is just a demonstration of a problem I'm having in a much larger program so the variable does have to be global.

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Way To Break On Change Of A Global Variable?

Jun 8, 2009

Running windows forms application, I have a module with public variable declarations which stay in scope during entire debug execution.Is there a way to cause a break to happen based on a change in value of such a variable?

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Change A Global Variable Value Based On Linq Query While Executing?

Nov 27, 2010

I have two module-level variables and Linq query. I want the results of the Let clause to change the global variables - is this possible?

For example:
Dim X As Integer = 0
Dim Y As Integer = 0

[code].....

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Variable Value Doesn't Change Untill All File Created

Dec 3, 2009

i am using file system watcher for service when a xml file is come in i processed the xml file and set Processed = True but this variable value doesn't change untill all file created..

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Global Variable - Value Of Num1 Supposed To Be Equal Everywhere In The Form At A Given Moment ?

Nov 8, 2011

HTML

Public Partial Class WebForm1
Inherits System.Web.UI.Page
Public num1 As Double[code]...

This is a part of a calculator code. When you press the button "BtnAdd" the text in TxtRes is held by the global variable "num1" and the operation number (whether add or subtract) by "oper". My problem is : OUTPUT 1: prints num1 = 25 (for example)While OUTPUT 2: prints num1=0

Why is this happening ? Isn't the value of num1 supposed to be equal everywhere in the form at a given moment ?

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Delete Dynamically Created Text Boxes From A Form?

Feb 10, 2012

ive got code like the code below that creates textboxes dynamically. I want to be able to click a button and delete all of these textboxes i make, however im not sure how to do this. When i tell the program to remove the TBIndex control it does not do anything. The only way i get it to work is if i put the command in the same sub as this code. This code runs in a loop by the way.

So if the loop runs one time and creates the TBIndex control and i have a line of code right after to remove the textbox, then it does not show up on my form. But if i put the command in to remove the textboxes somewhere else and run the code the loop runs abunch of times and creates all teh textboxes and the loop is complete, then the remove control part is called and nothing happens. I just need a way to clear all the textboxes off my form with like a button. I also tried painting over the textboxes with a big grey rectangle but that dindt work.

TBIndex.Width = 54
TBIndex.Height = 20
TBIndex.Visible = True

[Code]....

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Oval I Created After Form Loaded Via Script Can I Right Click And Delete?

Sep 23, 2010

I have code that draws a Oval onto my form.Can I create code to allow me to right click and Delete? Even better a custom menu so I can change its properties.

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VS 2005 : Setting Item Properties With Values Of A Variable At Design Time?

Jul 7, 2009

is it possible to set a value of an item, for example: a textbox1.text = Empty.String at design time?

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Change Datetime With Time Variable?

Jan 25, 2010

Need to change datetime with time variable in this code, i tried bu it gets error

Public Sub SetWakeUpTime(ByVal time As DateTime)
bgWorker.RunWorkerAsync(time.ToFileTime())
End Sub

[Code].....

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Change The Item Value Or Text Of Combobox Control At Run Time?

May 15, 2012

What I to do is really simple. I want to add a group of text boxes in my VB net application. note that the number of text box only can be known at run time.

I want to give default value to this group of text boxes. At run time, users can input text and change the text for each item.

How can I do this? Is there a control to do this?

What I can remember is ComboBox control. However, I only can display the item text and do not know how to change the text for each item.

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When Form Loads It Load The Current Date And Time But The Time Does Not Change It Should Run?

Aug 24, 2010

I am using this line of code on form load event it is working very fine but i have to problems

1. It replaces the form name and display the date and time but i want to keep both date and time and forms caption separated by some space.

2. When form loads it load the current date and time but the time does not change it should run.

What should i do please please help me code is as follows

Me.Text = Date.Now.ToLongDateString & " - " & TimeOfDay

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Synchronize Time From The Global Time Server In C # Code

Aug 28, 2010

I am working on a windows application project on NIST time synchronization, but can't get a proper solution for it. If anyone can send me the code to synchronize time from the global time server in VB.net or C # code

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What Is Different Between Global Variable And Public Variable

Jul 15, 2010

What is Different between global variable and public variable?

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Reciept Printing - Form Which Consist - Item Code , Item Name , Item Price , Quantity Of Item

May 25, 2012

Regarding my college project. i'm working on a sales system . i have a form which consist of all the following information( item code , item name , item price , quantity of item ) which is display using a data grid . data input by user using text box and all this information will be stored in a database(sales database) i'm using ms access 2007. the grand total will be displayed in a text box . and amount paid will be input in a text box too , my major problem now is how to i create a reciept that will have all this information of the purcase. i have a reciept button . what the next step ? i dont have any idea how to get the reciept done.

Imports System.Data.OleDb

Public Class Form5
Dim con As New OleDbConnection

[CODE].......................

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Outlook Lastmodification Time Doesn't Gets Modified After Change Of Synced Outlook Item

Jul 3, 2009

I have written a code in VB.NET using "Microsoft Outlook 11.0 Object Library" to create an appointment, task or contact in Outlook. Now the problem is once i create an appointment, task or contact from my VB.NET code and then if i open these item in outlook and modifies and save the content (like body of an appointment) then the lastmodification time of these item doesn't gets modified. It always shows the previous lastmodification time. This happens only for those item which got created from my VB.NET code.

I have tried realsing the COM object in my VB.NET Code.

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Access A Global Variable In C#?

Sep 21, 2011

If we declare a global variable in module in vb.net, we can use that variable in anywhere in project.

How can we achieve same thing in C#.

Previously when we tried to convert a vb.net project to C#, we succeeded in removing the syntax error but we can't access global variable in a form.

I need some solution or guidance. Where I am making a mistake?

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Can #Const Be A Global Variable?

Feb 6, 2010

VB2008: I would like to set a #Const value in a module and use it throughout my project. Is this possible? It appears that the #Const scope is limited to the function it's in.

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Create A Global Variable?

Oct 11, 2010

How Can I create a Global Varibale for my vb.net project. When I LongIn I want to keep the user Id in a varible and I will Use it in deferent Forms. And The User name will be saver in the varible untill I close the Software.

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Declare Out Global Variable?

Nov 11, 2010

how to declare out global variable? i tried out but get error.. below is my orginal code

[Code]....

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Global Variable Across All Machines?

May 31, 2009

I'm focusing on Networking programming and I had found something that was very interesting to me in Remoting, which is the ability to have some how a "shared global variable accross applications" ... Here's a quick example of what I'm saying (which is stripped and modified from one found example on internet):

In the Remoting class:

Code:Namespace remoteclass Public Class xx Inherits MarshalByRefObject
Public Shared_Var As String 'This is our share variable
End ClassEnd Namespace

[Code]....

I found that I can eaisly use this red-marked variable (Shared_Var) acrross all application clients without any extra line of code to update its value ... without using even what is called "singlecall" and "sigletron".

But I have concerns:

1) This is only applicable for simple types of variables (e.g. string and integer) but an array or DataTable for example are not updated! and I don't know why!!

2) Would that load the communication network (I mean the content of these shared variables (few KBs to 1MB) will always be communicated across machines all the time without any management) ... Actually I don't how this works from inside, Does it update on change or cyclic ...

3) And finally, can I found something like this in WCF?

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Global Variable In Asp.net Website?

Dec 22, 2010

I'm wanting to declare a variable as below for use in several pages on my site. I assume rather than declaring it once per page I can do it globally? I've tried it in a class (app_code folder) and in the global.asax page but my code can't seem to find it. I may be going abo9ut it all wrong though? Code as below...

Dim myUser As MembershipUser = Membership.GetUser()

So basically as it stands my pages can't find the 'myUser' variable.

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Global Vs Local Variable

Mar 22, 2010

I'm writing a subneting calculator in VB.NET.I'm using the IDE SharpDevelop.Well my problem is I'm using a function to do some calculations and then to figure out the class of the IP addresses.Well I pass a variable from the subroutine, that is accessed when a button is clicked, to the function then the variable is passed back to the subroutine and then the variable is passed again to another function but when it reaches this second function it doesn't retain the value it was given in the first function.I'm not sure if I'm just passing the variable wrong or if this is how it works.I know I can make this work probably by using global variables but I'm not sure if this is proper. So my ultimate question is what is the difference between local and global variables besides just scope and should I try and use one more than the other.

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How To Define Variable As Global

May 14, 2009

I have no idea as to how I can define a variable as "GLOBAL" in VB Express 2008. I used VB V 3.0 and if I remember correctly the statement "Global varName as Integer" allowed me to use the variable across different forms. I've tried the statement "Public varName as Integer = 0" on Form1 but Form2 tells me the variable is not declared.

The statement (in Form1) "Form2.Label1.Text = CStr(varName)" displays the value on Form2 in Label1 but I cannot then use the value again in Form2, e.g. "Label2.Text = Label1.Text". How I can transfer a variable value from one form to another and manipulate that variable in the second form?

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Loading Value Into Global Variable

Jan 13, 2010

I have a problem to load a value into a global variable, I am using VB Net (2005) in Windows Forms, this is a multi-Forms program. Here is my problem, as I start my program, it check if my form "Setup Option" has been loaded ounce, if it did it, it does skip it. When "Setup Option" is loaded the first time I have written 2 values into 2 textboxes using My. Settings and on form Closing it does work, if I re-open "Setup Option" form I can see the 2 values in the textboxes E.g.: txtGst.text=5, txtPst.text=6.5, so good so far. Now what I would like is to be able to use the contains of them 2 textboxes and place them into global variables, I already have a Module "modGlobals.vb".

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Pass A Global Variable From A Dll To A Exe?

Sep 20, 2010

How can i pass a global variable from dll project to a exe file, after this i want to run the exe also from the dll.

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To Make Variable Global?

Jul 28, 2009

Private Sub NoteTabToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NoteTabToolStripMenuItem.Click
Dim NewTab As New TabPage

[code].....

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Use Of Global Variable In SelectCommand`?

Apr 1, 2011

I have set a global variable in a module, which I then set the value in form1.I then wish to use this in form 2 in a Select Command for a dataadapter, it however says the variable is not declared although if I call it in a MsgBox on loading form2 it tells me the variable.

My code for the select is:
Me.OleDbSelectCommand1.CommandText = "SELECT Amount, [Record Number] FROM [" & _
"Test] WHERE ([Record Number] = ?)"

[code].....

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Move Button Over A Panel From The Form In Which The Button Is Created Dynamically At Run-time?

Jun 22, 2010

how to move button over a panel from the form in which the button is created dynamically at run-time ?

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