is there a way to prevent the user for changing the Tabs using the mouse?since i want the user to follow a determined path, so i advance in the tabs using a buttom which forwards trought tabs.
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Why is it that any project I make in VB.NET runs very slowly? Even if I simply add a TabControl, switching between tabs runs slowly, flashes the control white, etc. Is there a way to make it run smoother?
View 35 RepliesI have a vb.net windows forms project with a tabcontrol. Anyone know how to change the style of the tabpage title or "button" when you hover over it with the pointer ?
I guess you can change the colours with: TabControl1.SelectedTab.BackColor = Color.Black
But not sure how to hook up the mouseover to the hovered over tab title/button.
I have been tasked with showing a tooltip when I hover over certain TabPages within a tab control, I have tried everything I can think of to resolve this little task, but still I am left with no clear answer.
the events that I would normally use, seem only to fire if the mouse is over the actually tabpage, I am more interested in the tabpage under the mouse in the tabcontrol.
One of my friends has suggested that in my program i give users the ability to, when holding the Alt key,rearrange tabs in a TabControl when dragging the mouse. But im stumped as to how to do this.
View 1 RepliesI've got a set of controls in a line inside"FollowTableLayoutPanel1", contained within "TableLayoutPanel2".I have them resizing according to the position of the mouse cursor; the closer the mouse cursor is to the vertical centre of the control, the larger the control is. Because FollowTableLayoutPanel1 has its anchor property set to "Top", it recentres itself in TableLayoutPanel2.It is possible for the recentring of FollowTableLayoutPanel1 to move a control one pixel further away from the mouse pointer, which causes the control to shrink, which causes FollowTableLayoutPanel1 to recentre, placing the control closer to the mouse pointer, which causes the control to grow,which causes FollowTableLayoutPanel1 to recentre, which moves the control further away from the mouse cursor, etc., etc., etc.The end result is that the whole setup judders and wobbles, constantly resizing.Full example code is provided below,and can be pasted directly into Form1 of a new project. Positioning the mouse cursor to correctly show the problem is left as an exercise for the reader :
Public Class Form1
Private Sub myInitializeComponent()
Me.components = New System.ComponentModel.Container
Me.TableLayoutPanel2 = New System.Windows.Forms.TableLayoutPanel[code].....
I have two custom action listers. One that handles Mouse.Click and one that handles Mouse.MouseDown. My question to you is, can I delay the mouse down event so that it does not intefere with the code of the Mouse.Click event? I have tried adding a timer and waiting x amount then setting a bool value to true, but the code executes to fast and it skips the other code.
View 6 RepliesWhat is the code for Hiding a mouse and make it go back when going to
Desktop1.vb
Cursor.Hide()
works
Cursor.Show()
is not working when going to Desktop1.vb .vb its still hiding what am i doing wrong here is my code.
[Code]...
I came across this Switching from VB.NET to C#?I would be moving from C# to VB.Net. To be more precise, I would be moving from C# 3.0 to VB 10.0 (.Net 3.5 to .Net 4.0). I am initially planning to use a C# to VB converter to cope up with the syntax.
View 6 RepliesI have the following code, which works fine most of the time:
Private Function NormalizeTexture(ByVal Texture As Bitmap) As Bitmap
Dim Out As New Bitmap(2048, 2048, PixelFormat.Format32bppArgb)
Dim Gra As Graphics = Graphics.FromImage(Out)
[Code].....
I have some forms in my application and need to switch between them. I dont want to open another form over other form, in short I want the user to get a feel that he is working on one form only. Right now I am doing something like this but this is not what I want
[Code]....
In my project, I want the abiliity to switch between forms without closing them. What is the best way to do this? I have a "Login Splash Form" that you sign into, and then a Main Menu Form opens in Full Screen. I want this form always to stay open with the ability to open up other forms from this main menu screen as needed.
View 3 RepliesI have 2 listbox's, same locations/sizes (one behind the other). I have 2 buttons, and they just switch the views between the listbox's by changing their visibility propertyThe problem is listbox1, which gets populated first, displays just fine. No code in the program touches listbox2, except for 1 button that adds items. When switching to listbox2 to see the added items, the items are there (verified by debugging and hovering over the added variable), but the text that is displayed won't update. The text that is displayed is the text from listbox1.
View 14 RepliesI am currently working on transferring data between minitab and excel and have everything working out fairly well. I am having trouble getting back to minitab (I can get the initial program to run with the shell commmand). I have tried appactivate, and windows commands but I am not having any luck.
View 1 RepliesHaving had to replace my old computer, one can virtually only get 64 bit Win7 in UK.All my old Visual Studio 2008 + other components installed OK but when I tried to build and run a prgramme that still runs happily on the old machine, I get the following error message
System.TypeInitializationException was unhandled
Message=The type initializer for 'mydata.Colin' threw an exception.
Source=mydata
TypeName=mydata.Colin
StackTrace:
[Code]...
The programme is called mydata and Colin is my User name. Anybody got any idea what is wrong and how to correct it. I have tried to run it in Visual Basic 2010 Express and get the same error.
Hopefully VB2012 will have Gigs of error messages that mere mortals can understand!
I have an application I wrote that is in VB.NET 2.0. Works great, but I'd like to switch this application to Linq. I use ADO.NET to load XML into a datatable. The XML file has about 90,000 records in it. I then use the Datatable.Select to perform searches against that Datatable. The search control is a free form textbox. So if the user types in terms it searches instantly. Any further terms that are typed in continue to restrict the results. So you can type in Bob, or type in Bob Barker. Or type in Bob Barker Price is Right. The more criteria typed in the more narrowed your result. I bind the results to a gridview.
1) Go to Project Properties --> Advanced Compiler Settings and change the Target framework to 3.5 from 2.0.
2) Add the reference to System.XML.Linq, Add the Imports statement to the classes.
So I'm not sure what the best approach is going forward after that. I assume I use XDocument.Load, then my search subroutine runs against the XDocument. Do I just do the standard Linq query for this sort of repeated search? Like so:
Dim people =
from phonebook in doc.Root.Elements("phonebook")
where phonebook.Element("userid") = "whatever"
select phonebook
trying to get my first windows form running with controls. I havent been able to figure anything out. . . and then i realized duh, it's all in VB. How do I switch the generated files to C#? Am I confused? This is what I'm getting when I try to add my first control for Button_Start:
[Code]...
I'm starting to play around some with VB2008.
In VB6, I would write something like this:
rs.open("SELECT * FROM Contacts", cn1)
strFirstName = rs!FirstName
In VB2008, line 2 does not work. How do get to the fields in the recordset?
I am currently writing a program and I have all the windows in three languages. Is there any way of quickly changing through the languages? I mean, I can do it manually but the list has like 500+ languages and I was wondering if there was any keyboard shortcut to switch between the used languages, or any way to put a buttom on the toolbar.
View 4 RepliesTher time necessary to programmatically switching the cam on for the first time is very long while the next calls are normally much faster.Is there a way to speed up the switching on of the web cam the first time?
View 2 RepliesI have written a VB 2008 Standard Edition program using a SQL 2008 Epress database in my development environment. When I point my program to the production SQL 2000 database it blows up. With the following error:
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Microsoft Visual Studio
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GentranDataSet.Document_tb.Fill,GetData () could not be previewed.
The text, ntext, and image data types cannot be compared or sorted, except when using IS NULL or LIKE operator.
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OK Help
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The tables are "exactly" the same in the two databases... I think.
I have done some reading and wonder if this could be a unicode and non-unicode issue. Is 2000 non-unicode and 2008 unicode?
Can I "refresh" my data enviroment without having to re-create all my data objects in my VB code?
I am switching from listviews to datagrids and one of my listviews uses a sort in it. How can I sort in code using a datagrid?
View 2 RepliesI'm writing a flash cards program to help myself and others study. When the user presses the "New Card" button, I've been able to make it create the new card and jump to edit it, but the dataset/binding source/table adapter is not switching with it, so when you deselect the text box, it switches back to whatever was selected before the new card was made.[code]
View 1 RepliesI set up studio 2010 to work with c and now want to change it back to VB.net but can't remember how I did that. It seems like it was through the tools menu but seem to have forgotten how.
View 3 RepliesI am building a webbrowser using VB.Net 2010, and I am having trouble updating the url when I switch between open tabs using tabcontrol. I am also using a textbox for the address bar.
View 15 RepliesI'd like to add an option to my ListView, so that I can change it's view (tile, list, details,...) - just like in Windows Explorer. How can I build such a menu? With PictureBox and MenuStrip?
View 2 RepliesI am working on a website web site where each user has a culture setting to allow control of resources displayed. The main page has two views, one the log on screen, the second the main menu.
When first loaded the page displays with the culture settings of the previous user (if any). If I then log on as a user with a different culture setting the view changes to the main menu without changing the culture. Go to another page and the user's correct culture settings are picked up, go back to the main menu, uses the correct culture etc.
This is logical but is there a way (without redesigning the site to have a separate log in page and main menu) to reset the culture to the new user's when switching view?
I wrote an application using VB.Net 2008 (Not express edition) and in my main form I have several of it panecontrols and on these panels I have lots of other panels that contain controls.My problem is when I switch between the main (split panels) the controls are flicks(flashes) like they draw themselves for a second or two and after that the form is displayed as it should be
View 10 RepliesWell, I develop a web browser called "Telecom". Instead of using a tabbed browser control, I use multiple forms for tab switching, and most of the tab switches look like
View 2 RepliesSo the program I have is an overlay for a bit of software that has a main Video out. Whenever I go between forms the video freezes for a tiny bit but is noticeable. I am using the following to go between forms,
vb
Form6.WindowState = FormWindowState.Maximized
Form6.Show()
Me.WindowState = FormWindowState.Minimized
Me.Hide()
Is there a better way to cause less work for the form, making there be no lag at all?
