Is there a way to limit the topmost property? I have two forms and I only want to one form form topmost to only one form. I don't want it to be topmost to all of the windows in my computer.
View 4 RepliesI've got a property MyEnumProp which is displayed in a property grid. The property is of type MyEnum. So all entries of MyEnum are available in the propertygrid to select.Now i have a second property and based on its value i want to limit the values available in the propertyGrid for MyEnumProp.Is there a way to accomplish this?For instance: The following 2 Enums are defined in an Interface:
Enum Country
England
France
[code].....
I am making an UserControl which has several properties. One of them should have a specific range of the value - it should only be possible to set the value of the property with a number from 1 to 255. 0 should not be possible, because some calculations are done in which is divided by this property's value. I thought I could use a Byte as type, but a Byte can contain 0 as well. I would like to be able to set a limit for the value of this property, and that an error is shown in the Designer when, in this case, 0 is entered. I mean an error window like you get when filling in 0 for the interval of a Timer. Is this possible with an UserControl as well?
View 2 RepliesI have a UI that uses datagridviews / bindingsource / datatables of typed dataset for data entry. The dataset itself is serialized to a varbinary(max) in SQL. (i.e. no tableadapter, backend schema).I would like to limit the number of rows the user can enter into some of the grids (the data is used to fill PDF forms and I don't want them entering more rows than the forms can accomodate.).I have subclassed the datagridview, added a rowlimit property and tried to manipulate the AllUsertoAddRows property
Imports System.Windows.Forms
Public Class dgv
Inherits System.Windows.Forms.DataGridView[code]......
The behavior I see is that the messagebox comes up after leaving the max row even when the user is trying to leave the grid. I can lose the messagebox and deal with notification some other way but I thought someone else may have come up with something a little more sophisticated to handle simply causing attempting to add to many records to navigate out of the grid to the next UI control.
how do u actually limit a listbox to say 10 items
View 1 Repliesbasic question which i cant figure out is i have a listbox and i total up all the values in it and send it to a text box. but in the listbox i cant have more than 10 items in it i at the moment have a message box telling me how many items i have in the listbox which is simply MsgBox(ListBox2.Items.Count()) when the 10th item is entered i need it to not allow me to enter anymore so i know it needs to go 0-9 but not sure how to implement it.
View 1 RepliesI am using tooltips to show information that overflows a label. The problem is that when the information is really long it spans the entire width of the screen and is difficult to read, Is there any way to limit the size of the tooltip?I was thinking one way may be to insert linefeeds at points beyond a certain width -- messy, but it would work.
View 4 RepliesI have this function
Private Sub createChildForm(ByVal winForm As Form)
'Take a form and set app as its parent form
winForm.MdiParent = Me
winForm.Show()
End Sub
When some one wants to view the "About" form, it's called like this:
createChildForm(New f_about)
But my function doesn't stop them from creating an unlimited number of about windows and I need to put that limit to one form.
For example, I will have a login screen, but I don't want them logging in over and over again in different accounts because my subroutine doesn't stop a form from being created/opened more than once.
I have a passport number textbox and I want to limit the user to 7 numbers and a Letter in the textbox. How Do I do that?
View 1 RepliesI have a textbox and I would like to limit this textbox to enter 10 digits only. Is there a way to do it?
View 3 RepliesI want to set a time limit over openFileDialog window, if, for example, 10 seconds elapsed without any user input, it will be killed automatically, how to implement that.
View 11 RepliesHow do I code in vb.net that the text box can only accept 10 inputs from the user. User can only enter 10 strings.
View 2 RepliesI am making an app that hides the topmost window, but when i do this, it leaves no current window selected. how can i make the highest unselected window selected?
View 2 Replies.NET developing and have a simple question, i've been stuck on this for a while and searched many forums first with no solution so i'm posting myself. In VB for excel i've used Screenupdating=false to disable the screen updating however now i'm creating a visual studio 2010 windows forms application and its not showing up as a property. Here's the code i've tried.
[Code]...
i have a program im working on that has 68 different buttons on 1 form. each button opens a seperate form. each from opened from the buttons starts with "helmet_" i need a way to only allow one form with that starting name to be open at a time. otherwise you could open all 68 forms at once and that would cause issues.
View 9 RepliesI just read a recent article here at the code guru about the flip-3d feature available on Vista and Windows 7.It allows, you to place an application above, or below the windows being flipped.
Here is a VB example of that code really neat code.
Code:
Const DWMWA_FLIP3D_POLICY As Int32 = 8
Const DWMWA_EXCLUDE_NONE As Int32 = 0
Const DWMWA_EXCLUDE_BELOW As Int32 = 1
Const DWMWA_EXCLUDE_ABOVE As Int32 = 2
[Code]...
How do I find which form is currently on top? (child forms in a MDI parent form)
View 4 RepliesLet's say the user has both Firefox and Chrome running. I'd like to get the MainWindowTitle from the browser that is the topmost, even if none of them have focus.The code below works fine if the user only has one of them running, but I'm not sure how to the get MainWindowTitle from the topmost firefox/chrome window when the user has both of them running.
vb.net
Dim pProcess() As Process = Process.GetProcesses
For Each pr As Process In pProcess
[code].....
I am aware of the 'topmost' keyword in VB.NET for specifying a window to be brought to the front or top of the display windows showing. However, specifying 'xlApp.topmost' is resulting in a compile error in my VB 2010 Express project; most likely because my project doesn't include a reference that it needs for 'xlApp.topmost' to start working. What reference do I need to add?
View 2 RepliesI am trying to write a program that displays a medium opacity image as the topmost form. that I can handle, the part that is giving me trouble is that I want windows to "ignore" the topmost picture form and allow me to interact with any forms behind it (mine or otherwise) as if the see-through form isn't there. I have searched all over but cant seem to find a way to do this.
View 8 Repliesi use this code to open powerpoint file :
Shell("C:Program FilesMicrosoft OfficeOFFICE11POWERPNT.EXE C:Cacthuattoan.ppt")
but when it is opened , it only show in tasbar. i want to it appear with max window.
I'm writing a program that's supposed to keep the employees at my work away from doing things they're not supposed to on the computer. So I made a "launcher" window that's only closeable with password. I also disabled task manager. However when I start an application from my launcher window, the launcher window goes over it because of its topmost property.
View 2 RepliesI have a form that has to be on top for a period of time, and then can be set behind other windows normally. Is there anything in addition to setting Me.TopMost to True or False that needs to be done? I ask because it doesn't seem to be working.
View 1 RepliesI place a Background Image on my main form to a BMP file, On-top of the Background I have buttons, and Labels. When I execute the code, the labels (which are supposed to be WHITE) along with the text on the buttons is see-through, I can't get it to stay WHITE and not display whatever is behind the form. here is the examples I have, this is what it's SUPPOSED to look like: http:[url].....
This is what it DOES look like: http:[url].....
Does anybody use the Tag property of controls & forms? If so, what for?
View 6 RepliesWith that program, it has extra dialogs within it. They cannot be scrolled out and stay topmost while the whole app is focused. How can I do that?
View 1 RepliesI'm programming a Minesweeper clone in Visual Studio 2010, with VB.NET, as a Windows Form Application, and I'm having trouble with the Game Won and Game Lost forms. When I show those forms, I want the game form to still be visible, so that the player can see where the mines were, but I don't want the game form to be enabled until the Game Won or Game Lost form is closed. Exactly like Windows Minesweeper does when you win or lose.
[Code]...
My VB.NET application is suposed to monitor what application currently is running in the topmost window. I have tried the following approach using a timer:
Declare Function GetActiveWindow Lib "user32" () As System.IntPtr
Declare Function GetForegroundWindow Lib "user32" () As System.IntPtr
Public Declare Auto Function GetWindowText Lib "user32" _
[Code]....
By this I can see that for example Outlook or Internet Explorer is the topmost window as the name is in Window's title bar. However, if the user crates a new mail in Outlook the title of the window is "Untitled message" givning no hint of what application is running in the the window.
How do I get what application is connected to the topmost window?
I'm trying to make one form in my application always on top of other forms. Not the 'topmost' property, I want it on top JUST within the application.
View 8 RepliesWhat I need to do is Set my new form to be the top most form of only my application while still having click access to the main form. Right now I have tried the property Topmost = True but the thing about that I really do not like is it puts the form above every single windows form. I only want the form to be the topmost of my application. The showdialog also will not work because I no longer have access to my main form with click events.
View 4 Replies