Adding Lots Of Buttons?
Jun 8, 2012
I have a re sizable panel which i am adding over 100 buttons to. to do it i have a timer which detects any change in the height or width. then clears the panel and re draws all 100 buttons on. however i am encountering issues with flashing (where the buttons are gone for a split second before being repainted) and also speed issues. it seems to be slowing down the users ability to re size the window.
i was thinking by adding the buttons through its own thread it might combat the main (speed) issue.
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Jul 20, 2011
how to go about changing the tooltip on 114 buttons. As you can see from the code below I need to change the tooltip information based on if there is data in an array of structures. I tried creating a string of the button name and passing it on but that did not work.
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
Dim tooltipstring As String
[Code].....
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Jun 2, 2012
I'm a new programmer to vb.net, so apologise for what is likely to be ignorance.
I'm building a simple gui for a database interface, with many parent and child items within it. Upon a form I create buttons depending on how many items (parents/children). I've got the creation of the buttons thus:
For RowNumber As Integer = 0 To NoOfRows
Dim Buttoni As New Button
Buttoni.Location = New Point(LocationX, LocationY)
[Code]....
But I'm struggling with a way to delete the buttons to make way for a new set to replace them... I can delete a single one upon its click, but I'd like to delete all of the buttons that have been created in this way before re-creating them.
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Jul 25, 2011
Is there a better way to make a form with multiple buttons opening different things than having a form that has lots group boxes for each tab. So in the begining each box will be invisible and when you click the button the corresponding group box will become visible. Is there any other way?It will be like a background image and it'll have buttons that will mask it with invisible buttons. when the button is clicked it will open the corresponding group box.
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Dec 19, 2010
I want to place a few buttons on my form. The number is unknown at design time. Actually each button will represent an item entered in combo box. So if user adds an item, a button on the form should be added by the code.
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Sep 16, 2011
I am making an application where a user can add buttons to a list and I wish to know if there is any way that these buttons can be sorted into alphabetical order?
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May 3, 2011
i'm still working on making my button project and I've came across a new problem.
I want to create buttons based off the amount of lines in a text file which will be easy if I can get this to work. This is my test code before I implement it into the real program:
[Code]...
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Jan 26, 2010
How do I code a program that when I enter an input like 5, will will automatically generate 5 buttons on a separate form and transfer the values of another input to the buttons?
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Jan 20, 2010
I have 14 command buttons on my form. what i want to do is change the text of the form based on the current date. button1 should have todays date.button2 should have tommorows date.button3 should have day after tomorrows date and so on. I want this for fourteen buttons.I can do it manually by assigning each button.text to each date... i want to do it using a loop. is it possible.my buttons are named , button1,button2,button3,button4, and so on toll button 14.and the text i want on them is from the current date to 14 days later...basiocally want to display the dates on the button..is it possible though a loop.m using visual studio and vb.net
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Jun 17, 2009
[URL]. Attached is a MEF WPF and WinForms project that I have been playing around with. I was able to add two 'plug-in' buttons to the form but how do I provide functionality to the buttons? How can I add objects from a separate assembly, like most plug-ins do? Let's say I want to break out each menu (File, Edit, View, Tools) into their own assemblies, leaving the main application window as a blank form that will import each assembly on startup. Also, could functionality from the Edit menu assembly interact with the code from the File menu assembly? I have also not created custom user controls before so as you can see I am having trouble creating a plug-in menu structure.
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Feb 5, 2010
I want add Glossy Button in my VB.net Window Application. How can I do it?
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Oct 18, 2009
Adding custom buttons to a visual basic form
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Apr 30, 2010
I need to be able to add buttons to a tool strip at run time. As of now I've been able to get the buttons to display with a nice little picture just how he wants and some text under it. Just can't figure out how to "enable" the click event for these buttons. Obviously I need them to do something rather than just sit there looking good and this is where I'm stuck. Right now I'd be happy for a message box to come up saying yep I'm working as I could then work with that. This is what I have for code so far... this is just to get it working I'll work on the actual code later.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim btnSomething As New ToolStripButton
btnSomething.Text = "Test 1"
[code]....
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Oct 23, 2009
There is a response to this question using C# - I am looking for a VB answer and the C# code is too deep for me. I have a custom user control and I have a toolstrip on it. I have certain default buttons on the toolstrip, but I want the user to be able to add additional buttons at design time. I exposed the Toolstrip.Items collection in a public property. I can open the collections editor in design time, but I cannot edit the collection.
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Mar 27, 2012
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim rgen As New Random
[Code].....
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Jun 9, 2011
I have 26 buttons on my form (each a letter of the alphabet) i want to press a button lets say Z and that it then changes the relevant registry key value of 0 to 1 representing the button has already been clicked (these a-z buttons are to be compared with on/ off switches). This way if I start my program up again the values in the regedit will "memorise" wich buttons were turned on and wich were turned off in our previous program session.
Ultimately the buttons turned off should always appear as red until switched onagain
Dose anybody know how to achive this?
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Mar 3, 2012
I have a piece of software with two tabs, inside each tab there are buttons (the user can add the buttons when they want). when tab1 is full tab2 should start to fill. I currently know how many buttons fit on the screen so I just say something like if buttons > 150 then start to populate tab 2 The problem i have now though is if the resolution is changed then a different amount of buttons can be displayed. so if I put my screen to 1280x720 some buttons are left of. I was thinking of detecting the resolution and then using different cases for different resolutions but this seems very inefficient im wondering if there is a different way?
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Oct 31, 2010
The data is loaded from a xml file (which the code parse the xml, and create datagridview cell dynamically). and the user is allowed to change the data, when the program exists, it will write back to the xml file to save the change.It works fine when there are not many rows. when it has too many rows, say, 10K rows, the program loads slowly. I searched, found some suggestions, but it seems they do not work very well.1) when load the data, not create the rows directly. instead, create a datatable, then add the table to the datagridview's data source. it still takes time for the dgv to show the data.
2) then, I guess maybe I should paging the dgv. then it comes 2 questions:2.a) I only have a manually created table, how can I get a dataadapter/dataset from it? do I have to put data in a database table first (i.e. sql express), then load it to data adapter? is it possible to manually create a data adapter/dataset?2.b) if I paging the dgv, does it mean I still need manually update the dataset/datatable to keep the possible change when the user navigate through the dgv? or, I can simply use an update method?
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Feb 13, 2012
I have a lots of strings.So I will need to do some statistics.The problem is some strings are the same.So,I will need to know the numbers of the same strings.How to do this.Shold I hold the strings in a Array of a List?
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Jul 24, 2011
I want to show lots of text in my form but i'm not sure how to do this efficiently.
The text is just instructions to the games Pong and Match so it isn't very long, but long enough to not be practical to type into a textbox's text control. The instructions will have paragraphs, but no other formatting.
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Dec 12, 2009
I have a form with lots of labels on it, and a reset button to reset them to a default text. This reset sub has lots of lines of code to get this done, but I think it cen be done in just a few. I thought of something like:
For Each Label In Me.Controls
Text = "0"
Next
but this doesn't work, or anything else that I've tried. how to do get this done? And what if I want half of the labels set to 0 and the other half to 1? Would that be possible without setting them all seperately?
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May 24, 2012
I'm creating a program which navigates through a tree-like structure. There are lots of items with a single 'parent' and many 'children'.
Using a SQL database, I've got all of the items information stored, but I'm struggling with how to hold the IDs for each Items children.
For example:
A: no parents, Children: B, C, D
B: Parent: A, Children E, F, G, H
F: Parent: B, Children: J, K, L, M
Where each item will have hundreds of children, for which I don't really want a column for each child...
Is there a simple (or more complicated) way to hold and retrieve a large number of integers within one column... i.e. as some kind of sub-database, or an array with the column??
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Jul 12, 2010
I'm considering making an application that will perform various tests against servers on a local network - for example pinging them, checking hard drive space, checking the state of services, whether or not databases are available, etc etc. Very similar to Hostmonitor if anyone has ever used that - but my app will be free
These tests would have to be performed at specified intervals, but the problem is that there could be literally hundreds of tests and I'm not sure how well my app would cope with hundreds of timers running... especially if they are all configured to run every minute or two (they all need to run independently of each other).
Really I'm just wondering how you guys would design such a system.The best way I can think of is to have a separate timer associated with every test and then when a test's timer has elapsed use the ThreadPool to do the work that the test will perform. That way if loads of them happen to run at the same time then the ThreadPool will queue them rather than trying to run say 200 at once. I also think I would need to have some kind of staging for when the app first starts, so that every single test is not going to have the exact same time to run (well, every test that has the same interval configured), but that shouldn't be too much of an issue.I guess it would be a good idea to try and use some sort of grouping so that more than one test can use the same timer - like if 20 tests were set to run with a 5 minute interval then I could use one timer and run all of the tests when that one timer fires.
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Mar 14, 2009
I am going to work with 300 000+ words... what is the best thing nowadays to put so much text so it can be searched fast (runtime)? I would use a jagged array but maybe there is something new since I read my last book with tips&tricks.
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Feb 15, 2008
I am in the process of writing a program that converts large number of records from one format to another. When doing some testing on it, to make sure I don't have any memory leaks, I am noticing a large number of undiposed cursor objects. I am not sure what to do with these. My program seems to run fine, however on some computers I am getting issues when the process is complete.
What happens is this. The program starts up, the user sets up the configuration options, it does it's processing, it creates a HTML report and launches IE (or whatever their default browser is) to display it. Then the program goes back to its Config display.
[Code]...
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Sep 28, 2011
I have a DataGrid, with several columns. One of them is DataGridViewComboBoxColumn. I have a lot of items in this column - more than 1000 - and I need all of them. So grouping is not an option - all items must be there, users must be able to select from all.The problem is, DataGridViewComboBoxColumn becomes painfully slow, when number of items is about 1000, and above. This issues is well known to Microsoft, it dates back to Visual Studio 2005: [URL]...The problem is still present in Visual Studio 2010. Any ideas how to solve this?
Is it possible to fill DataGridViewComboBoxColumn with data partially? I mean (that was functionality fully working in Access), when you click DataGridViewComboBoxColumn, some items are displayed (lets say, 100 items). When you scroll down to the latest item, others are loaded (another 100) and so on. I don't see any other option to make DataGridViewComboBoxColumn working faster? Problem is, how to implement this? Has anyone meet that problem before?
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Sep 28, 2011
I have a DataGrid, with several columns. One of them is DataGridViewComboBoxColumn. I have a lot of items in this column - more than 1000 - and I need all of them. So grouping is not an option - all items must be there, users must be able to select from all. The problem is, DataGridViewComboBoxColumn becomes painfully slow, when number of items is about 1000, and above. This issues is well known to Microsoft, it dates back to Visual Studio 2005:Is it possible to fill DataGridViewComboBoxColumn with data partially? I mean (that was functionality fully working in Access), when you click DataGridViewComboBoxColumn, some items are displayed (lets say, 100 items). When you scroll down to the latest
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Feb 7, 2012
I have an App. I have a lots of datas to handle.So,I wonder if I can click a button and launch Excel and export my datas to Excel.So I can edit my datas in the Excel rather than in my App.
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Jan 15, 2012
How would I go about copying all the files out of a directory and lots of subdirectories and moving only the files somewhere else?(say C:Testfile1.txt).
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Jul 9, 2009
I seem to find more and more that I declare a lot of objects or methods as Shared now but it feels like I am not doing things properly.I try to avoid doing this but then I just end up with situations where I have to create an instance of a class just to call one method that would act no differently if it was just a shared method.Basically I'm just wanting to know if there is any good reason to avoid using Shared objects/methods. Obviously I dont declare EVERYTHING as shared, but it just seems to make things a lot simpler most of the time.For example in my current project (a chat application using WCF) I have a class just called Core which houses a lot of the main functions of the client program, so it has methods such as: SignUserIn, SignUserOut, SendMessage, MessageReceived etc and it also holds properties such as a list that contains all of the currently online users. These things are all declared Shared in my program because as far as I can see there is no reason for having to do this:[code]
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