In Microsoft Access there was an easy method to turn off screen updates by setting Echo = False. Is there an equivalent in VB.NET for WinForms? I've got a situation where I'm trying to prevent users from seeing controls flickering while they're being updated. I could probably solve the problem by coding it differently, but would rather avoid it if I can.
View 2 RepliesDuring Serial communications, is the echoing back usually done by the serial port interface or is it done by the UART at the far end?
View 10 RepliesI have a textbox which I need to enter html code into (like < strong> or < em> for example). The trouble is this is causing an error writing this back to the database. A potentially dangerous Request.Form value was detected from the client (tbVOther="< strong>test.Is there a way around this without turning off the request validation setting?
View 3 RepliesI am using Visual Basic 2008 to create some databases. It reads data from textfiles and puts them in SQL databases. After the user presses the Process button I would like to give the user to get some feedback of the process simply by for example label1.text += "Processing File 2".But during the process no Screen Updates are made...only after all databases are processed and VB.net is waiting for new user response it updates my label1.text
View 4 Replieshow do I set the Autovalidate? I tried with the line bellow but this is wrong way, I get error "Object reference not set to an instance of an object."So what is the right way of setting this? ErrorProvider1.ContainerControl.AutoValidate = Windows.Forms.AutoValidate.EnableAllowFocusChange
View 1 Replieshow to set header color for tabpages in WINFORMS. and also the back color.
In my code. For j = 0 To dataset4Category(i).Tables.Count - 1
Dim Finder As Integer = Decimal.Floor(((dataset4Category(i).Tables(0).Rows.Count) / 30))
key = dataset4Category(i).DataSetName
name = Space(1) & StrConv(dataset4Category(i).Tables(0).TableName, VbStrConv.ProperCase) & Space(4)
myTabControl.TabPages.Add(key, name)
myTabControl.TabPages(j).Tag = 0
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How to control the font DPI in .NET WinForms app..How to change the Appearance/UI of win-forms in vb.net as per Windows display setting? default windows display setting is 100%, if i change it to 125% then my win-forms in my application doesn't display properly as per display settings.
View 1 RepliesI'm coming from ASP.NET background and lately I started developing winforms applications for my company, I had no problem with the move from ASP to winforms programing wise, the only thing i have problem with is to my program to look good across different screen resolutions, resolutions is big problem when developing for the web as well, but I already learned and know how to handle those problems and make my website to look good under almost any resolution what I'm really asking, can someone experienced in this area tell me what are the rules and guidelines i should follow and obey for my winforms application will look good in most resolutions.
View 2 RepliesWhat code in VB.net 2010 do I need to set a window to come to the front of the screen. What I am trying to achieve is to display an urgent alert type, its a form, for certain reasons I am not using message box.
Following code does not work:
Private Sub frmMessage_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Me.BringToFront()
End Sub
I have a vb.net 2.0 winforms application. When I open another application (like calculator) have the focus to it and try to close my application the screen freeze and I have to use ctrl + alt + del to get it to refresh.
View 1 RepliesTo recreate this behaviour, you need to create a pop-up form with the following properties:
(1) ShowInTaskBar = False
(2) Display the form with the Show method and loop until the form is not Visible.
(3) In order to close the form when the mouse is clicked out of it, override OnDeactivate, and set visible to False.
Next, create another form that will display the pop-up when a button is clicked:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As Syste
Using pop As New PopUp
pop.Visible = True
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it also puts a black border around the form. (You'll have to set FormBorderStyle = System.Windows.Forms.FormBorderStyle.None to see this.)what this style does apart from putting the black border round the form?
I need to do "echo y | P oolplink.exe -l user001 -pw pass001 -ssh hx-devx4 sh Assrde1/apps/infra/script/who_is_in dv66pw" because plink ask me if I want to Store the host key and I want the process to answer y.[code]I got an error that the file don't exist.
View 2 RepliesHow can one set the screen size? As with the task bar, by incressing the size sets new limits when maximizing an application's window. How can I tell the system what would be the demensions of the desktop screen: left, top, width, height?
View 5 RepliesI build an application that is designed to work on a screen resolution of at least 1280x1024. So therefore, when my application starts, I would like for it to check the current screen resolution, if the screen resolution is not what I specify, then a message will ask whether the user wants to change it, if he clicks yes, then the screen resolution will be set to 1280x1024 and then it will reset to the original when the application closes. However, if the desired screen resolution is not available, then an error message will pop up.
View 2 RepliesI have a single form windows application and here is my question; When I set the property of the form's start position manually to centre parent or centre screen it starts up in the centre of the screen. When I do the same thing in the form load event:
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I am working on an application using vb 2008 express. I have built test programs over the past few weeks and shared them for feed back. Today when I finished some work, I built another test application, but when I install it the start-up screen maximizes but is set between one and two desktop icons from the top of the screen.
In debug mode it looks fine. In the past it looks fine. Each time I start the program the screen is in a slightly different location. It is set to start maximized and to the best of my knowledge, I did not change any settings in the property area. I have tried loading on three computers and the results are the same. Any ideas on what I could have done to produce this strange result?
I'm working on a vb 2010 project where I am playing mpeg movies using the Media Player control.The computer has dual heads (extending windows desktop to other display). My aim is to be able to selectwhich screen to show the video on. I have two forms, the first form (frmControl) has two buttons, Play and Stop.The second form (Player) has the embedded Media Player. Initial tests worked fine (not choosing a screen, but making the player fullscreen and playing a movie). When I add the following code to allow choosing the screen
View 4 RepliesI am developing a point of sale for a buddy.The system it will be on will be running nothing but this application. The system SHOULD always stay at 1024, 768 but i like to plan for problems.What I would like to do is on form_load change to 1024, 768. On exit, (for learning sake on my end) I would like to have it set back to the default.
View 6 RepliesTo create splash screen before InitializeComponent, the WithEvents statement for the BackgroundWorker component needs to be moved from the Form's Designer.vb file into the constructor as indicated in the first commented lines of the constructor below.
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I'm setting form sizes according to user screen resolution and I think I need design no smaller than 1024 x 768 these days. Using the following code I set my first form and use Anchor settings to resize and maintain controls. Does resize affect StartupPosition in other forms and what do you think is the best StartupPosition to Show the next (smaller) forms? I have a feeling I should have created child forms but simply added forms to the project as I needed them. For example, the first code example does not take account of the WIN7 Task Bar.
HTML
Dim x As Integer = My.Computer.Screen.Bounds.Width, y = My.Computer.Screen.Bounds.Height
Me.Size = New Size(x, y)
A smaller form loads with the same code slightly varied, but the reduction is not taking account of the screen resolution. Is there a way of reducing by percentage?
HTML
Dim x As Integer = My.Computer.Screen.Bounds.Width, y = My.Computer.Screen.Bounds.Height
X = X -100
y = y - 100
Me.Size = New Size(x, y)
In a windows forms class in Visual Basic 2008, there are several horizontal lines created with the lineshape control dragged from the toolbox. A very strange thing is happening with the horizontal lines. In the forms designer, all of the the lines (both horizontal and vertical) look fine, but when the program is executed (in debug mode), about 3 seconds after painting the screen nicely, I get echos of portions of the horizontal lines about 50px or so above my horizontal lines. You can look at the screenshot here: [URL]
View 17 RepliesHow to make the form size automatic setting the size equals to the screen. or Maximize the whole form including the form components.
View 3 RepliesCan we set the windows form resolution according to pc screen resolution and even the control should be adjusted...
eg.
My screen resolution is 1366 X 768
and my form size is 1254, 709....but I want it so set according to the screen and it will be dynamic...
if I transfer my project to some other pc with lower or higher resolution it should be adjusted....
and suppose I have few controls on the form...will that also be adjusted??
BTW this issue occurs in any MS office program when the VB.Net (or even VBA) is processing information.Example: In Excel, a worksheet is displayed on the screen. I start either, a VB.Net or VBA procedure and within 30 seconds the Excel worksheet (previously displayed) blanks out. In both VB.Net and VBA,ScreenUpdating = False. My expectation is that the previously displayed screen would stay static as if I left my desk to get a cup of coffee; came back and the same ole Excel worksheet was still there?Of course, setting VBA Screen Updating = False accomplishes two goals: 1) speeds up processing and 2) saves the user from seeing unnecessary "garbage-processing" steps.Why does VBA or VB.Net ScreenUpdating = False not freeze the screen at the time of its invoking?
View 11 RepliesI am trying to create a simple chat server over vb that can relay messages back and forth using an echo server. Could someone point me in the correct direction to begin?
View 3 RepliesSome of you might remember that my application got data from a PLC which is a Short. That is converted into his base 2 equivelant and turned into a boolean array.Problem is, this 16 bit word i'm getting is little endian (right to left) and I want to turn it into a big endian (left to right).
View 3 RepliesQuestion is, I basically wrote a Rock Paper Scissors game in VB.NET using If statements and wondered how exactly I would try and work this into a Select Case instead.Professor was pretty awful at teaching things and didn't let us know until today that it had to be Select Case(its due tomorrow
View 2 RepliesI'm trying to use System.Diagnostics to do some very basic logging. I figure I'd use what's in the box rather than taking on an extra dependency like Log4Net or EntLib.
I'm all set up, tracing is working wonderfully. Code snippet:
Trace.TraceInformation("Hello World")
App.config:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
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That doesn't make sense to me: I just have to declare an instance of the BooleanSwicth to be able to manage (disable) tracing via the .config file? Should I like ... use ... the object somewhere?
This shows a form, header and footer are to be kept fixed. In the middle there is a Group Box that hold a question with different option. When user clicks Next button at the bottom, Group Box loads next question. I want
View 4 RepliesI'm trying to turn a string array that contains string , numeric and date values some of the string values are in hebrew when turning them to a single string (using join or through a loop) the order of the values comes out wrong
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