I have so many form to manage. I want to count the instances of a particular form. For example, if I show my form1 two times then there must be a counter for my form1 and if I also shown my form2 another counter for form2.I want to do this to minimize the instances of forms to be shown so that my resources will not burden to much.I want my code to be generic so that I can easily call it for my other forms.
View 11 RepliesI have an exe that runs from the server. The instances are shown on the server. So the questionis how can I get the following code to count the instances on the server.
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Dim oProcess As Process
Dim nCount As Integer = 0
For Each oProcess In System.Diagnostics.Process.GetProcessesByName("MSTP")
nCount = nCount + 1
Next
(MSTP is the name of the application's exe.)
Right now im using code to count the instances of certain letters in column named "status" the problem is i use a filter to filter them by the date they were entered, but the counter gets ALL the instances in the DB not just the ones displayed in the datagridview.[code]...
View 14 Repliesi have a small prog to test the instances when i run another instance then i want to count it, ex. i open sample.exe this should be 1 in label and i open another instance of sample.exe this should be 2 in label how can i do this
i try this code but the instances count are not working
Dim count As Integer = My.Application.OpenForms.Count()
Label1.Text = count
I would like to make a simple code that counts the top three most recurring lines/ text in a txt file then saves that line/ text to another text file (this in turn will be read into AutoCAD's variable system).Forgetting the AutoCAD part which I can manage how do I in VB.net save the 3 most recurring lines of text each to its own text file see example below:
Text file to be read reads as follows:
APG
BTR
VTS
[code]....
The VB.net program would then save the text VTS to mostused.txt BTR to 2ndmostused.txt and APG to 3rdmostused.txt?
I know there is a function Contains that returns true if string has a certain substing in it. But is there a function that returns the count of instances of that substring inside another string.
View 6 RepliesI am going to have a series of numbers, I want to count how many times each unique number exists in the results.For example if I have this string" "1, 2, 3, 5, 3, 7, 1" I want to know the number 1 appears 2 times, the number 2 appears 1 time, the number 3 appears 2 times, the number 5 appears 1 time, and the number 7 appears 1 time.I want to load this up into a datagrid each unique number will be stored in a column named acct the number of times the number appeared in the string will be stored in a column named numref?
View 3 RepliesThere are 3 textboxes->textbox1,textbox2,textbox3 and 1 button.In textbox1 bname will be stored and in textbox2 aname is stored.Bname and aname are columns of databasetable.This are not unique.There are same bnames and anames records.What I am trying to do is:when the user clicks on button then the code should match textbox1 and textbox2 with the databasetable and get the count of rows that match this data.
View 4 RepliesI'm fine with both C# and VB.NET..I have two tables. Authors and Books. It's a one to many relationship, Authors to Books. I'm writing a query to show how many books that each author has.[code]But in the Authors table, there are some authors without any books yet. For example, there two authors, Author D and Author E that have no books yet. I want to write query that includes all authors and number of ther books, even though they don't have any book yet, no record in the Books table yet.
View 1 RepliesThe below Code is written inside the Timer Tick event. It works fine as long as the Time and Date are not same. When the Time and Date are same it only displays 1 message. How can I show multiple message for the same date and Time ? I think this can be done If I create different instances for a form. But I don't know how many same time and Date will be there in the database. So I can't do that.
Dim frm As New frmMessage
Dim nowDate As String = String.Format("{0:M/d/yyyy}", DateTime.Now)
Dim nowTime As String = String.Format("{0:h:mm tt}", DateTime.Now)
[Code]....
(simplified) I have a button in form1 that creates an instance of a form2, fills some data unique to that instance, and shows it. This data should be unique. Any attempt to create an identical form2 should fail, and instead bring to front the matching form 2, but if the form 2 is filled with different data (representing a different person) than it should be created.
View 3 RepliesI am using the following code to create new instances of a form
Dim nfMainForm as New frmMainForm
nfMainForm .Show()
And when I open multiple instances of the form then I need to reference controls on specific instanced of the Form then I dont know how. i.e. I need something like
nfMainForm(0).lblFullName.Text
If I create a console application for example with a class named "Person" I can create an object variable with a ceratin name only once. For example:
Module
Module1
Sub
[Code]....
I have two forms in my application. Form 1 is a listview that is populated with unique Customer IDs. When the user double click the listview on the particular Customer ID then it loads Form2. Form2 has many listviews within it such as a listview for the Customer telephone, another listview for their addresses etc and all the data presented in Form2 listviews are based on the Customer ID that the user clicked in Form1.
So here is my question...I want the user to be able to open Form2 with that particular details of the customer but also to go back to Form1 and double click another Customer ID and opens Form2 again (such as replicating Form2) with the other Customer details.So the moral of the story is i want the user to be able to have many instances of Form2 open each time they wish to view a different Customer ID without having to close Form2 down every time.
I am doing a media player, based on WMP's controls..And i am trying to fix a progressbar that is working as a sort of a counter that show's where the music count is.And also what the name of the song is.and also trying to make all the songs would show without extension and the whole C:\music\mysong.mp3 instead having mysong.mp3
Public Class Form1
Private Sub import_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Importdiag.ShowDialog()
End Sub
[code]....
I have a form (form1) and I havea button on form1 (button1) that will start a second form (form2).How can I make it create multiple instances of form2 when button1 is clicked?i tried a process module that the studio comes as standard but it does not allow me to start multiple instances...how can i do this?
View 14 Replies[code]...
How do I find all instances of frmNameHere created using the above code?
I am wanting to make a collection of form instances.I was wondering if the arrayList is a list of pointers (or references) to items added or if a new instance of an object is placed when using the add method.
i.e. if I had: Public Shared forms as Arraylist = new Arraylist Then if I called forms.add me from an instance of a form would it create a pointer or reference to the instance or generate a whole new one?
I am writing an application whose main purpose will be to collect user-entered data on a prescribed time interval (to be used by a dr. during anesthesia to collect patient vitals during surgery). I am attempting to accomplish this by having a form opened from the main window on every tick of a timer. The problem, is that if the user is a bit slow in entering the data on the first window, and the timer ticks again before they submit the first form, when the form is reopened (currently by simply using a show() command), the process of opening the form again simply overwrites the original form rather than creating a second instance.What is the best way to open a second (and possibly 3rd, 4th... nth) instance of the same form?
View 4 RepliesI am working on a project where i have a home form which has two buttons for login for employee and administrator.after clicking on button login form will open,but i want as soon as login window opens d previous home form must be closed or hide..also there is link on login page for home,but as soon as user click on home link new instance of home form is opening,hnce i want to stop dis multiple opening of the form.i tried close() and hide() but no use.[code]...
View 2 Repliesneed help please on how to prevent multiple instances of a form at runtime in vb so tha when a user clicks a button to load a form it loads an if the user clicks the same button again whilst the other instance of the form is running it doesnt open a new one but insted sets focus on the currently running form.br2
View 4 RepliesI have a form which displays temperature and humidity data for a device in the field. I have multiple devices. Rather than creating a separate form for each device, obviously it is much better to have a single form that I instantiate, pass data to, and display. The devices are listed in a treeview, and when the user double-clicks the node, I create an instance of the form, pass the device's data to the instance of the form, and display the form. All of this works perfectly. However, I have a challenge: If the form for a particular device is already open, I don't want another one opened when the user double-clicks the node.
However, whenever I place logic in the program to check for the existence of the form and only allow another instance to be created if one doesn't already exist, it prevents me from creating a form instance for any other device that I may wish to view, simultaneously. So, I have a dilemma -- allow the user to display the data for multiple devices, including allowing multiple forms to be open for a single device, OR only allowing one device to be displayed at any given time.
is they a way of keeping track for multiple instances of the same form? example saving the contents of a textbox ,the positition of the form and size when using the code below to create the new instance of the form ,i would like to save the contents of multiple form2`s from form1 ,can it be done??
[Code]...
How can I count Total of column from datagridview and show results in textbox Using VB 2005!
View 1 RepliesI am trying to create a subroutine that creates multiple instances of a specific form.
Here is my code:Public Sub NewFormInstance(ByVal FormName As Form)
Dim FormInstance As New FormName
FormName.Show()
End Sub
When I create more than one instance of the same form and I call a method on any of these instances, the code only fires on the most recently created instance. Even when I click a button on that form, it executes on the other form. How can I call these and keep them as distinct objects?
For example: if I build Form1 with a public method called ChangeMyColor and a button to call that method. Then in the main app I set MyForm1 = New Form1
and MyForm2 = New Form1, then call MyForm1.ChangeMyColor, the color changes on the second instance. Even if I click that button on the first instance, the color still changes on the second.
I've got two sets of lists with nearly 800 items that I need in 32 different drop down comboboxes (before you ask, that is required and it can't be simplified). Understandably, populating each of them slows down the creation of the form. This happens to be a child form that these drop downs are on and there could be more than one child form displayed. I've assembled the lists in List(Of String) objects and set each of the datasources of the comboboxes appropriately, but it still takes several seconds for them to populate and display for the first time. This is also problematic if the datasource gets updated (items removed, added, renamed) because I have to wipe out all the items and create the list again in all active instances.
[Code]...
I have an MDI parent(MDIParent1) form with a child form(frmMain).The child form got a Tabcontrol(TabControl1) in it.I am trying to load other forms(say form1) in my application to this tabcontrol as tabpages. I use the following code for that
[Code]...
Is it possible to create instances of controls on a form ? Of course I mean visually , not just by code. After all, these languages define themselves as "Visual" so they should provide that possibility. It is important for the instances to be visible during design time because otherwise we could only guess where those controls might "land". Nevertheless , I have the feeling this is not possible in VB .NET but still I thought I should ask first ...
View 11 RepliesI have 30 instances of the same form running. Video array with different video on each. Each form is named "oneForm". I'm looking for a way to close all forms with one click. I have found that I can hide the forms no problem like this.
for each killfrm as form in my.application.openforms
if killfrm.name = "oneForm" then
killfrm.hide()
[code].....