I've built a dialogbox with a RichTextBox and I'd like to have the following behaviour:
I've got the focus (cursor) in the RichTextBox. When the ENTER key is pressed, then there should be a new line in the rich edit control created. The ENTER should NOT close the dialog box [as it does now :-( ].
I have this code which creates a picturebox during runtime and displays line graph but I always get an error in this line: gr1.DrawImage(pic1.Image, -m_Dx, 0) 'it says Value cannot be null. Parameter name: image
code
Public Class Form1
Private Const m_Dx As Single = 1
Dim data As Integer = 1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim pic1 As New PictureBox
[Code]...
I'm building a Dialog in Winforms. It's got the two OK and Cancel buttons that are there when you create it, which is what I want. In this dialog I also have a TextBox and a Sub (coding in VB.NET) that handles its KeyPress event. I need stuff to happen when the 'Enter' key is pressed. Now, I've done such KeyPress handling times and times again. This situation, however, is different, because as soon as 'Enter' key is pressed, the dialog automatically assumes you're pressing the 'OK' button, returns a result and closes.
In both the Designer and the actual form when running the application, the OK button is highlight, which means is has some kind of a focus (for the lack of a better term) at all times. How can I disable this feature of a dialog? When I debug my code, pressing enter does not even get to the sub handling the KeyPress event. It simply closes the dialog and returns the result, therefore I can't really step through the code and see what happens behind the scenes. To restate the question, how can I disable this functionality?
I'm designing a Windows Forms Application, and there is a dialog that should NOT exit when the enter key is pressed, instead it has to validate data first, in case enter was pressed after changing the text of a ComboBox. I've tried by telling it what to do on KeyPress event of the ComboBox if e is the Enter key:
[Code]...
But no success so far. When the Enter key is pressed, even with the ComboBox on focus, the whole dialog is closed, returning to the previous form. The validation is NOT done at all, and it has to be done before exiting. In fact, I don't even want to exit on the form's enter KeyPress, the only purpose of the enter key on the whole dialog is to validate the ComboBox (but only when in focus, for the sake of an intuitive UI). I've also tried appending the validation to the KeyPress event of the whole dialog's form, if the key is Enter. NO SUCCESS! It's like my code wasn't there at all.
I'm developing a WinForms app in VB.NET, that handles sets of style data, and when the user clicks on another set's label, it prompts through a dialog "You are leaving this style preset to edit another one. keep changes on this one? [Yes] [No]".But, I'm facing the problem that, when the user clicks either option, and the dialog closes, everything has to be refreshed, and loading the form again seems a good option.[code]But as soon as that sub is called from the prompt, it crashes the application. (doesn't show an error in debug, simply crashes) How should I, from a given dialog, close the dialog, it's parent, and re-open it's parent? (which triggers all the Dialog_Load() code of the parent)
View 2 RepliesIn form I have one button which has functionality to pick up some data from (by mouse click) Parent application.
I have handle for parent application handle, but even if i tried to bring it on top i am not able to do selection because form is modal.
Requirement here is open modeless dialog and wait till it close. other wise it goes further and executes functionality below.
Another option can be open form as modal and at runtime change it to modaless.
How would i go about closing my openfiledialog in the event that there is an error[code]...
View 12 RepliesI am using VB.Net 2010. I have two dialog forms open at once. the form that does not have focus I am trying to close and reopen to show the value changes. Below is what I have.
[code]...
the form associated with f never closes, however does open with the new values. I have tried Application.DoEvents and that hasn't worked.
In vb dot net, Windows form details should save if I press enter key should save and close and escape key should close without save
Currently it happens on onclick event of a button of Save and Cancel, but I wish the keyboard events also work
I actually have gotten the events firing like I expect except for trying to close the dialog window.
Background: I have a wrapper around my "Jabber Client" that sets the delegates for the client wrapper and basically generates a messageProcess event. This event is wired in the main program Class[code]...
Whenever I try, the save file dialog comes up when I hit No and same when I hit Cancel....
If My.Settings.SaveSTS = False Then
MsgBox("Do you wish to save your changes?", MsgBoxStyle.YesNoCancel)
If MsgBoxResult.Yes Then
If My.Settings.OnceSaved = True Then
Dim writer As New IO.StreamWriter(SaveName)
[Code] .....
How can I make my text box send the value that was entered when pressing the key "Enter"? I have tried the "textbox_enter" event and it wouldn't work. When I press enter it makes a noise (something like "ding" xD).
View 4 RepliesI have a password form that contains a load of buttons. The user has to enter a four digit, numeric, password to procede. They do this by pressing one of 10 number buttons on the screen, the keyboard isn't used. If they enter the wrong password an error message pops up (this isn't using the error tool I just added a message box msgbox("Error Code #638492") or something) if the user doesn't enter a password, after 5 seconds (I use a timer called Timer1 with an interval of 5 seconds) the form closes and it goes back to the previous page.
My only problem is when I close the form using Me.close(), the message box is still displayed. And if the message box is still displayed it doesn't work. The form is miminized (I have the application in full screen) so this is very bad. What I need is to simulate the enter key press then close the form so the enter key is pressed, the messagebox close then the password form closes.I can do this using SendKeys.Send("{ENTER}"). Here's the sub I use:
[code]...
However, if I don't have the 'Close()' line of code in the message box closes as it should. If I don't have the message box open and I don't use the SendKeys.Send("{ENTER}") then the close() line works perfectly and close the password form as it should?
A Dialog that is added to a Windows Forms project comes with two buttons (OK and Cancel) and Click event subroutines for each. The subroutines close the Dialog with different DialogResult enumerations. Here's the code in the one for Cancel: Me.DialogResult = System.Windows.Forms.DialogResult.Cancel Me.Close() But either statement (changing DialogResult to an enumeration other than Null or Close), by itself, will close the Dialog as well. (Try commenting out one and then the other to prove it to yourself.) Here's the question: Why both? Why not just one or the other?
View 1 RepliesI have made a little programme where the user can put in a name to search for a contact.The matches then fill a Datagrid and the user can then choose the one they want and the programm then opens the contact form (from outlook client)The Contact form opens ok, and it brings up the correct contact. If the user then selects the option to "Email" from that from I then get the error message"A Dialog is open" etc...
My code is as follows
Sub GetContact()
Dim objOutlook As Outlook.Application
Dim objNS As Outlook.NameSpace
[code]....
It seems to be due to Outlook being open or opening?
I am using the given code to copy my database files...it works like a charm in debug mode but as soon as I create a setup, it stops working. The error is
"Database Detach Failed"
I tried checking the code line by line and found that the code does not enter the IF block.I have no idea why.
Public Sub bk()
Try
Dim strDatabasePath As String = My.Computer.FileSystem.CombinePath(My.Application.Info.DirectoryPath, "LIC.mdf")[code].....
I know this sounds some what odd, But i really need a program or some code that can hit the Enter Key on a time base say 22min
etc.
Hit will hit the key and top not hold.
I find that each time there is a new line when enter key is press in VB intellisense is annoying. Although space is ok, but each time it has a new space and I have to press return to remove it, which is also inconvienient for multiple selections.
View 1 RepliesI use RichTextBox in project ,I want add counter ,when I press "ENTER" to move to new line this counter +1.
View 8 RepliesDoes anyone know how I can setup visual studio to use the enter key to complete intellisense, but without moving the cursor to the next line? I use multiple other IDE's that work in this fashion, and VS is really throwing off my rythym with this.
View 4 RepliesI have a richtextbox which has CSV values in each line. Whenever a line is inserted, after pressing a command button the program lets the user know how many categories each line has.
Example:
Line1: a,b,c,d,e
Line2: x,y,z
Pressing the command button would say: Line1: 6 categories, Line2: 3 categories. This works fine, except from when I want a line to NOT contain any categories.
[Code]...
I understand that VB recognizes the vbCrlf on Line2 as a char, hence a 'category', hence the line is not empty. But what happens when I want to consider a line as empty (ie Line2:0 categories)? Should I go with something like if txt.line(i).text = vbcrlf then...? This solution seems kind of like bypassing the problem instead of actually solving it.. Or maybe it's just me?
I'm making a notepad program and I'm trying to make it so when you press enter on the very left side in the RichTextBox, it'll tell you what line your on. For example:
View 3 Repliesin my form_load sub i added a line to enter a new row when the form is loaded by using me.bindingsource.AddNew()Is there anyway i could tell it to only add a new line only if the rows are empty, the table does have a primary key column where its seed is 8000 i dont know if this would make a difference to how you would make it work
View 6 RepliesI've seen this type of line in many post on here..I been rolling this over in my head and i think that this line or something close to it is a bad idea. For index As Integer = ListView1.Items.Count -1 the above line assumes that on the last line the person has hit the enter button which is VBCrLf(carriage return and Line Feed) in which case the above line would be ok..however if the last line does not contain a CrLf then you in effect are skipping the last line.
View 25 RepliesInside a multiline Text Box I want it so that when a user presses Ctrl AND Enter then a new line is entered. But, if they press Enter on it's own, then it acts like the Accept button on the Form. I believe this is how Facebook does it.
Ctrl+Enter=NewLine Enter=Accept
I've created a very basic WF Shell project which runs an EXE (xyz.exe) in the WF Shell project's Resource folder. I can get a command line working from the Shell to open the other EXE (xyz.exe). But, I can't get code to close the Shell project's other EXE (xyz.exe) once it is opened. The xyz.exe windows called by the Shell continues to stay open even if I pass a "close" command line to the Shell.
The following code (which Paul suggested in another posting) will not close the other (xyz.exe) EXE's running process (when called by the Shell). While the Shell seems to be able to return it's called subordinate EXE's (xyz.exe) ID, not sure how to use such an ID to close its process.
Imports System.Diagnostics
Module Module1
Dim resourceFolder As String = Application.StartupPath & "Resources"
[code]....
I have this code that tries to kill the wampmanager process when the user press on a buttonBut how can I achieve the same thing if the user clicks on the close button. Is it possible to execute a small line of code just when the user clicks on the close button?If you know any alternatives in
Dim pProcess() As Process = System.Diagnostics.Process.GetProcessesByName("wampmanager")
For Each p As Process In pProcess
p.Kill()
[code]....
I enter a valid picture path run this code and get error in the sqrt line
CODE:
How to fix ?
Public Months() As String = {"January", "February", 'March", 'April",
"May","June", "July", "August", "September","October", "November",
'December"}
[code]......
I'm currently in the process of building a text editor type program, and have run into a brick wall. I haven't done VB in years, so I may just need a little reminder on some things. I have coded everything so far as far as opening files, saving them, changing fonts, colors, etc. However, I'm looking to add a Close button to my menu strip that will just close the currently opened file, and not the entire program, while also ask the user if he/she would like to save before closing the file, and then if they select yes, it will show the save dialog, and if not, it will go ahead and close the currently opened item.
View 2 Replies
