VS 2008 Dynamic Timer In A Dynamic Form

Feb 19, 2010

Ive managed to dynamically create a form, and dynamically create a timer, but i have not been able to create the timer on the dynamic form. Specifically, i need to be able to have the timer itself create another form with a timer. (I realize that this would create a new form every interval on the timer, that is what i want to do)

1. A way to add the timer to the dynamic form, and maintain the timer sub on my main form.

2. A way to create the whole thing over (dynamic form and timer) through the previous dynamic form and timer.

I was thinking i could use a collection/array to store the forms and timers, but i'm still having trouble figuring out how to add entire forms or timers into a list. (A timer is not considered a control, so i cant use a controlcollection...)

Heres my code;

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim frm As New Form

[Code]....

*EDIT* Btw, my idea was to use i as a variable that increases every time a form is created, then insert the form into the array, with i as the integer. i just need to know how to create a new form with a different name each time. (as with timers)

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Dynamic SQL To Dynamic LINQ In .NET With MS SQL Server 2008?

May 24, 2010

I need to represent the following query using LINQ:

DECLARE @PurchasedInventoryItemID Int = 2
DECLARE @PurchasedInventorySectionID Int = 0
DECLARE @PurchasedInventoryItem_PurchasingCategoryID Int = 3
DECLARE @PurchasedInventorySection_PurchasingCategoryID Int = 0

[code]....

Now, I know that a query in .NET doesnt look like this, this is my test in the SQL Design Studio. Naturally VB.NET variables will be used in place of the SQL local variables.My problem is this: All of the conditions after "WHERE" are optional. In that a query might be made that uses one, some, all, or none of the conditions. V.PropertyID and V.Value can also appear any number of times.In VB.NET I can make this query easy enough by simply concatenating strings, and using a loop to append the "V.PropertyID/V.Value" conditions.I can also make a Stored Procedure in MS SQL, which is easy enough.However, I want to accomplish this using LINQ.

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When you hover over a label there will be a different contextmenustrip to appear for each and every label. So all the contextmenustrips are Dynamic and contain 1 option maybe 2 options even 3 or 4 up to the users settings.

My problem is not creating a handler for when the user clicks on the contextmenustrips options. The problem is knowing which one of the options for that contextmenu was clicked!!

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Multithreading - Dynamic Timer

Feb 29, 2012

I've got a vb app in .Net 4 that i'm working on. The app fires up dynamic threads to run some jobs. Each thread runs a certain job and within that thread, it performs a infinate loop. It needs to be this way, i can't have the thread and then begin again...

anyway.. i was using threading.thread.sleep in the loop to have the loop pause for a bit before running again. It seems that this is not a good way to go and not recommended. So i thought perhaps i could use a dynamic timer or something else to have the thread wait for say 30 seconds before running again. i was hoping someone could give me some direction and example code.[CODE...]

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Access Values Of Dynamic Controls Added To Dynamic Tabpages?

May 8, 2011

i have created a dynamic tabpage and a dynamic tablelayoutpanel inside it then added dynamic textboxes and labels inside the tablelayoutpanel...the thing is , i am having a problem on how to access the value of those textboxes and labels and add them as new columns in the new table(tagpage) in mysql database, i can already create the table in the database but i cant add the new columns in it. heres the code for accessing the values of the labels and textboxes

error: NullReferenceException was unhandled....Object variable or With block variable not set.

sql = "alter table " & tbl_selected(counter) & " add " & frmMain.Controls("TLP_" & SecArrList_sp(counter2)).controls.item(SecArrList_sp(counter2) & "label" & counter).Text & " varchar(100) NULL;"

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Dynamic LINQ Query Based On Dynamic Number Of Comboboxes?

Feb 5, 2010

I would like to bind a DataGridView to a different LINQ query every time (in order to reuse the same form/DGV for different queries), like this:

[Code]....

but the "Qry", and the number of comboboxes, and their field names would change every time.

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VS 2010 MDITAbControl Add Dynamic TextBox With Dynamic Webbrowser?

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Basically i have one TabControl with a form and 2 browsers within one form I have ProBlem To call the dynamic browser to navigate with dynamic Textbox.text

[Code]...

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VS 2008 - How To Add Dynamic Timers To Form On Runtime

Jan 1, 2010

I am working with a simple game idea. I wanted to have two players running around shooting each other (very low graphics, like circles and squares). I've got this far; I have the ability to move around both characters, and change directions etc. ive also been able to set up my shooting. Only problem I run into is getting the bullet to move! I cant use a preset timer, because if I used that, I could only shoot one bullet at a time, so I would need to create new ones dynamically.

So my question is; how does one add dynamic timers to a form on runtime, and alter the tick sub so that it moves the picturebox (bullet) and once it can be moved, (I was thinking about using player locations in relation to the bullet, and if they were equal than the health would go down or whatever, but unfortunately, this means it would have to be directly in the middle of the player, which would be odd..

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Dynamic ToolTip For Dynamic Text Box?

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OK, I'm trying to display tooltip text for a dynamic edit box. Well, at least I'm trying to.

On my form, I've got a tool tip control which I've conveniently named ToolTip. My edit box displays OK. But, what I want to do is when the user hovers their mouse over the text box, I want the tool tip to display some text.

I think there are two problems that I'm having. I'm not convinced that I'm properly addressing a dynamic text box name. Ideally, I would want to be able to refer to the text box (but using a dynamic variable that will contain the prefix of the name). To hardcode, I would want to be able to achieve (not in this example but in theory): ABCDEFGt_0300.Text = "hello"

Dim controllerName as string = "ABCDEFG"
Dim t_0300 As New TextBox()
Me.Controls.Add(t_0300)

[Code].....

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.net - Dynamic Use Of Form Controls?

Mar 7, 2010

I have 10 labels named lbl1, lbl2, ... lbl10

I'd like to change their propriety (using a cicle) with the cicle index

for i as integer=1 to 10 step 1
lbl (i) = PROPRETY 'I know this is wrong but it's what I would do...
end for

I'm using a workaround, but I'm looking for a better way..

[Code]...

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Oct 12, 2009

How would you add Dynamic controls to your form, from an array which size may vary depending on how many controls the user has selected and has been retrieved from a database?

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Dynamic Controls In A Form?

Jun 6, 2011

i have a form with many dynamic controls. i want to add an item to a listbox ( by the way, to find this listbox i'm using 'tag'. if someone have any other idea i'll be hope to hear but that's not the problem) in order to do so i use this

For Each ctl As Control In Me.Controls
If TypeOf ctl Is ListBox Then
ctl.items.add("i want to add this line")

[code]....

and items is not recognized and this eror massage apear: 'items' is not a member of 'System.Windows.Forms.Control'.

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Aug 12, 2011

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Its not done in a real 3-tier architecture - its a web site with references to a DB class, and a class library. There is business logic in the web site itself, in the class library, and the database stored procs (Validation is done in the stored procs).

I think this is a bad model in general, because one of the things I heard one of the developers say is that anytime any client makes a change, we should deploy to everybody - but that is not realistic, if we have say 20 clients - there will need to be regression testing on EVERYTHING, since we don't know the impact...There are about 100 forms in total, and their is some similarity in them (not much). But I think the idea that a dynamic engine can solve ALL form requests was not realistic as well. Clients come up with the most weird requests. For example, they have this engine doing a regular data entry form AND a search form.

There is a lot of preserving state between pages, and it is all done using session variables, which is ok, except that it is not really tracked, and so sessions from the same user keep getting overwritten, and I think sessions should be got rid of.Should I really just rewrite the whole thing? This app is about 3 years old, and there has been lots of testing and things done, and serious business logic implemented, so I hate to get rid of all that (joel's advice). But its really a mess of a sphagetti code, and everything takes forever to do, and things break all the time because of minor changes.

I've been reading Martin Fowlers "Refactoring" and Michael Feathers "working effectively with legacy code" - and they are good, but I feel they were written for an application that was 'slightly' better architected, where it is still a 3-tiered architecture, and there is 'some' resemblance of logic..

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I'm able to link a MS Access database (.accdb) file to the app. But, how do I create that dynamic area whose content would be one of the database tables of the linked database? I tried using DataGridView, but I'm a newbie and I'm missing something; it doesn't work.

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<form id="frmMain" runat="server">
<asp:Panel ID="pnlAdded" runat="server"></asp:Panel>
<asp:TextBox ID="txtFeeder" runat="server"></asp:TextBox>[code].....

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I have created a dynamic form and have added several textboxes controls giving them names such as tb1, tb2 etc. The form is create and displayed, however cannot update the value of the controls.

Private WithEvents gform As New GenerateForm
The form is created using the following from click event of a button
Dim x As Boolean = gform.myForm("AForm") -- Form get created and displayed
x = gform.PopulateForm("a test message") -- The value is passed but not displayed
Public Class GenerateForm
Dim tbMsg As New TextBox()
[Code] .....

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[code]...

How to select the right selected index for combo box without a hack (Load timer or something stupid like that)?

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[Code]...

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[code].....

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This is an extension of my last question which was answered, so I am starting a new thread. I have a query in LINQ that I was given to trim down the columns of a datatable. This works well, however, I need to make the LINQ query dynamic. So the query below:

Dim qColumnsIWant = From row As DataRow In inDT.AsEnumerable() _
Select _
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