I don't find a CanGrow property on the Textbox control. This is common in some other controls, and what it does is expand the control to acomodate more data. Anyway to get this feature in the TextBox?
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When I enter values in the textboxes and then press a button (=leave the edit) I find that table (myDataSet.Table(0)) contains all the values I entered besides for the last control/textbox that I was in.
I am using VB.net to create a simple winform. I have the option to save the data I input on that form. I am trying to prevent the user not to save the data if textbox10 is empty. I tried the 'while' loop but I go into an infinite loop. The code is below. The 'if' statement gives the error but allows the user to save.
While Len(Me.techniciansTextBox.Text) = 0
MessageBox.Show("Please Enter a Technician To continue")
End While
How can I launch a console application from my windows app and get output from it in a textbox?
View 1 RepliesI need to get all controls on a form that are of type x, I'm pretty sure I saw that code once in the past that used something like this:
dim ctrls() as Control
ctrls = Me.Controls(GetType(TextBox))
I know I can iterate over all controls getting children using a recursive function, but wondering if there is something more easier or straightforward, maybe:
Dim Ctrls = From ctrl In Me.Controls Where ctrl.GetType Is Textbox
UI is created in VS 2008. I'm using C# .... I need to let the user move/focus between text fields from top to bottom by clicking tab button. How can i do it?
View 2 RepliesA Form is to Accept User Name and Password from user, after verification the form should display another form that will accept user's full data. When a user press the Ok button, the information entered on this form should be display in another form (Showing the user what he/she has entered)
i have Design the Firs Form and the second form, how can i pass the information entered on the second form to third, and also what will the code look like I need help on this or Code Sample?
NB: i am trying create an instance of the second form in the third form and declare a variable in the third form that will holed the value, but still not working I want to learn .NET Programming in VC#, ASP.NET And VB.NET. I am student and really get excited when it comes to programming
is it possible to use the same database for winform application (with vb.net) and web based with asp.net?
View 4 RepliesI have a winforms app with multiple GUI threads. I want them to be able to access each other's thread objects without having to keep track of that information separately.Is there a function in .NET that I can feed a winforms control or window object, and get back the thread? Or a function in the API I can pinvoke for the threadID?
Edit For those of you who for some reason believed my italicized text, congratualations, you're hired!! Here is the problem: "App is crashing in the wild by locking up totally, that is, it stop responding. Very intermittent, and trying to debug it, it seems to never happen."
So what do do? Install an option in the program that the user can activate under our direction, whereby from another GUI thread in the same app, do a thread.abort on the main GUI thread, then we can look at the call stack in the error log. Viola, found an impossible to debug error in less than a day. (Stop now, it had nothing to do with abusing multithreading:-)
I'll admit I almost didn't ask this, the reason I did was I could see an object reference to the main form, but there wasn't any for its thread. I'm giving Chris Shain the answer a/c it is a quick way, unfortunately when the thread is hanging, I wouldn't be able to do an invoke (it would hang too). A little more digging revealed the GetWindowThreadProcessId API call. But it's an unmanaged thread ID, apparently there are complications turning that into a managed thread ID.
So I bit the bullet and put in a global reference to the main UI thread. Would have posted it to begin with, but hadn't written it yet.In main public module/static class:
Public GUIThread As Threading.Thread
Sub Main()
[code]....
I am trying to put a pdf file on my form using microsoft report viewer, but i cannot find it. where is it?
View 2 Repliesok so i dynamically create a wsf for running an automated telnet session that works great!!(finally!!) but auto executing the script from my code is proving difficult for whatever reason.
I have tried:
Shell("C:shutoffscript.wsf") this produces this result.
also tried setting a bat file that launches the script and launching it as well using shell every time I launch it I get an error in the script that works just fine executed outside my code.
using outfile As New StreamWriter("c:" & "shutoffscript.wsf")
outfile.Write(sb.ToString())
End Using
MsgBox("Script built press ok to execute")
Shell("C:shutoffscript.wsf")
I think this has to be some sort of permissions error right? Since both errors tend to not be able to find the file. Just not sure how to fix it.
Public Class ConsoleHelper
<Runtime.InteropServices.DllImport("kernel32.dll")> _
Public Shared Function AllocConsole() As Boolean
End Function
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COM Reference 'AcroPDFLib' is the interop assembly for ActiveX control 'AxAcroPDFLib' but was marked to be linked by the compiler with the /link flag. This COM reference will be treated as a reference and will not be linked.Winform - Get It To Run On other Computer?
View 4 RepliesDone quite a bit of looking but not finding what i need. From a win form i'd like to open up a web browser passing in a url. But i need to provide authentication while doing this. I tried just using a system.diagnostics.process.start("http://userid:pw@site") but that does not work. Was hoping someone could lend a hand.
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so is there anything else that can be done to get IE to work.. cause i'm thinking that would allow the above code to work as well.
There is alot of "search-hits" for the BASS.net Lib, but there seems to be non documentation for how to do this on the [URL] page. My problem is: I want to be able to play a .XM file in my Winform. I'm using VS 2008, .NET 2.0 on a 64-bit computer. Does anyone have any experience with this?
View 1 RepliesHow to set winform start position at top right? I mean when user click (start) my winform application the winform will appear at the top right of the screen?
View 2 RepliesVB.Net / Winform.Is there a component that will look like a Button but when pressed will open like DropDown, but the DropDown wil contains a list of Buttons? Menu bar won't work for me in this case.
View 1 RepliesI am using vb.net / Winform 2010.I am looking for a free (or very cheap) alternative to the DataGridView, one that looks more like what I see on ads for XTraGrid. Something that will multiple lines per records, and for lines to be rolled up, and expanded by clicking, etc.
View 1 RepliesI've been profiling a WinForm's application using ".NET Memory Profiler".I can't quite seem to understand how my application is growing to 1GB, then 2GB, then 3GB of usage - according to windows task manager.
The private bytes using that tool, and "Total Bytes in All Heaps" shows only as 70MB or so. At the top of my list of instances hanging around, they are mostly String, or WeakReferences to lots of little objects.
All the application is doing is showing a form that loads data from a database. I repeat the show/dispose cycle of the form about 100 times and the growth is continuous.I've tried about 3 memory profiling tools now and none of them are showing me where this enormous amount of memory consumption is coming from.
I'd like to place a button on a WinForm that will allow the user to access an external website via IE.
View 4 RepliesI am in the process of converting an in-house web app to a winform app for disconnected reasons and I hit the following snag.
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How do I convert the following VB WinForm to C# WPF?
txtFoo.Text = Strings.Right(txtFoo.Text, 10000)
I cannot find Strings in WPF control class and String in WPF does not have method of String.Right
I'm working on WinForms project. I need to change color of my form from white to black.
VB Code:
Dim g As Graphics, Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
g= Me.CreateGraphics
End Sub
how can I do this with help of g instance's methods?
The application is written using VB in VS 2008 with .NET 3.5 I have a table in SQL Server that represents Invoices and in the table is a field named "Paid" which is define as CHAR 1 with values of "Y" or "N". Nulls are not allowed.I have two Bound Windows forms to manage the Invoice data, one with a DataGridView and the other a Detail Form. Both use the CheckBox control for the Paid field.
In the DataGridView I can define values for the TrueValue and FalseValue and the Database is updated correctly.I can not find anything like this for the CheckBox control on the detail form.Am I missing something? It seems like if it is one it would be in the other for the same control.handle a CheckBox on a Detail form? CheckedChanged?, NewClass for the CheckBox (which I have not done before)? Other?
I want to display a link in a message box. By default the text is displayed as a non-selectable string.
View 4 Repliesim using membership of asp.net to manage user and roles in my vb.net winform application when logged in i wanna get the current user in a specific form
i use that code
nom = TextBox1.Text
Dim user As MembershipUser = Membership.GetUser(nom)
Dim identity As New GenericIdentity(user.UserName)
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I want to embed my noteped.exe to my winform. It must work within my winform and within a panel.How Can I Do this?
View 1 RepliesI have a winform and its fullpath is C: est.exe
How do I get the winform fullpath at run time? For example, the user may move the winform to other places.
I want a modal screen on startup of the computer, so that user forces to make some action on that screen. Also I want to disabled close button of the screen, It should cover entire Desktop.How to achieve using winform/webform? is parent/child form is the only solution fro this/?
View 1 RepliesI want to launch any URL using desktop application developed using VB.NET using POST method.
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