I want a button that when you click at it, It searchs for a line that has brackets that are'nt closed, and then ighlights the error.Like, I have; So the (Dog Which should be for example (Dog). Then, I want it to highlight it so the user can see his error, and show a notifyicon on it.
View 4 RepliesI've built a basic editor which have code auto-completion feature and also shows parameter list. Now I want to add highlight matching bracket feature. I've no idea on how to do this !
Update:I know some basic algorithm to find the matching bracket, but don't know how to highlight it ! [to change the color or making it bold of the matching bracket]. I'm using multi-line textbox for this issue.
I am trying to write a query on an .aspx webpage connected to an .aspx.vb file to access some parts information on my mysql server. Everything works fine except for one poorly named file, which keeps breaking the query. The fields name (with the table name in front) is
invf12.PRICEE(1STU_M)
Those brackets seem to be the problem. I have tried putting single quotes around them, as in
invf12.' PRICEE(1STU_M)',
I can't do anything about the fieldname. The query in total looks like this:
Protected Sub LookupPart_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LookupPart.Click
Dim strSQL As String = "SELECT invf12.ITEMCODE as Part, invf02.DESCRIPTION as Description, " + _
"SUM(invf12.QUANTITYONHAND - invf12.QUANTITYRESERVED) as Available, invf12.PRICEE(1STU_M) as Price" + vbCrLf + _
"FROM invf12, invf02" + vbCrLf + _
[Code] .....
I have installed VB.NET express 2010 version and I am trying to create a new dll file for use in my SSIS packages. When I try to write the code, the VS environment tells me that I dont have the Microsoft.SqlServer.Dts.Runtime Namespace. What can I do to make this possible?
I looked around on internet but couldn't find anything substantial. I also have BIDS 2008 which I use to create packages. I cannot uninstall that because I have some work to do on a daily basis.
I am working with a .csv file that is generated from a Java-based application. It mainly contains contact information. I can see the data when I open it in Notepad, Excel, and Access. However, when I attempt to read the data file in using the following code, I get blank data. I accidentally discovered that if I open the .csv in Excel and then save the file, my program will read it in perfectly.
MrWrightAZ
Using MyReader As New Microsoft.VisualBasic.FileIO.TextFieldParser("C:GAS_ReportMembership.csv")
MyReader.TextFieldType = FileIO.FieldType.Delimited
MyReader.SetDelimiters(",")
[code]....
Form1 is a mdi container. It has a bunch of forms that can load inside of it as mdi children. If I close each open form inside the form1, and then click the red X at the top right, application exits fine.If I click the red X without closing the forms inside I get: An unhandled exception of type 'System.CannotUnloadAppDomainException' occurred in mscorlib.dll
Additional information: Error while unloading appdomain. (Exception from HRESULT: 0x80131015) However I can break from it. How do I get the application to not show that error? What must I do to fix those inside forms or close when the red x is clicked?
When I build my project I get a compile error stating "Could not locate the manifest signing certificate in the certificate store". This is a new one to me and I have no idea how to solve it.
View 1 RepliesI have a class library that is referenced by several other class libraries along with the main program. About two weeks back, I made a change to one of the classes in that base library, which is used as an argument for some events. Since that time, I have been testing code. Today, after a couple more tests, I started getting this exception. It is indicating a field is missing, which was renamed in that change about two weeks ago. The exact code that is raising the exception is code that I have run a couple dozen times in the intervening time, and it has always worked.I have tried everything I can think of, including deleting the bin and obj folders of every module that could be in any way related to this issue, such that the whole thing was rebuilt. I have removed the references and re-added them. Nothing worked. Code that has run fine for weeks has decided that it wants a version of an object that has not existed for weeks.
This problem arose immediately after a different problem, so the two might well be related. The other problem was that, while stepping through code, the IDE decided that one of the code pages was different from when it was last loaded. I get that a fair amount, and solving it is fairly routine. It generally means that I am stepping through code in a dll, and inadvertently tried to fix a bug in that code, rather than in the dll itself. Now it no longer matters. I can't get to that code page, nor can I get to anything else in that dll. It is acting like it has sponaneously decided to revert two weeks back in time, and use that source code for debugging, despite any attempt I make to bring it up to modern times.
I'm working on a grid of cells that is something like a DataGridView, but not really. The two are close enough that you can picture a DGV for the purpose of this question. What is actually there (and this is true for actual DGVs) is a set of cells drawn on the screen with a couple scrollbars for vertical and horizontal scrolling which are only drawn if there is too much data to show in the visible cells. There aren't more cells than the ones that are visible, so when you scroll the scroll bar, it looks like new cells are being displayed, but what is actually happening is that the existing cells are just being filled with different data depending on the position of the scrollbar. The key observation is that the set of controls displayed in the grid is always the same (unless the grid is re-sized, but that's not relevant to this issue). The appearance of those controls can change, but the controls themselves do not.
One of the features I am adding is the ability to drag-copy data similar to how Excel works. In my case, if you click on a cell, then drag outward (move the mouse while holding the button down), all the cells in the selection rectangle are tinted green. This works nicely. Some of the cells are enabled, while others are disabled. If the drag selection includes disabled cells, those are not tinted. Only enabled cells can be selected, though a drag can cover disabled cells. The relevant point here is that some cells are enabled and some are disabled.
The feature that I am adding is the ability to do drag selection beyond the visible edge of the grid. The grid is a monthly calendar, and I simply can't get 31 cells onto even a wide-format screen. What I am trying to do is allow the user to do drag-copy onto days that are not currently visible. The way I do this, the user clicks in a cell, then drags out to the border, at which point the grid scrolls (the scrollbars move, and the contents of the cells is updated as a result of the changes to the scrollbar value). This is largely working.
The way I handle the selection is that when the user presses the mouse button while over a cell, a flag is set to indicate that the button was pressed, and the current cell is recorded (so that I know where I started from). MouseMove events are used to figure out what new cells the user has visited, and set the selection area based on whatever is under the rectangle described by the initial click point and the current point. Lastly, when the user releases the mouse button, the MouseUp event initiates the actual copy. At that event, I know that the user is done with that copy action. Therefore, the MouseUp event is kind of critical, and therein lies the problem.
As I mentioned, some of the cells are disabled and some are enabled. Disabled controls don't raise events. If I click on a cell, it HAS to be enabled, but that's fine. The problem is that if I then move the mouse in such a fashion that the grid scrolls such that the cell that I had initially clicked on is no longer enabled, then the cell doesn't raise events any more, and the MouseMove and MouseUp events stop happening.I only see one viable solution, which is to not toggle the enabled state of the grid cells. Instead, I would have to have to add a custom property that would make the control act and look disabled as far as the user was concerned, but it wouldn't be disabled as far as the program was concerned such that it would keep raising mouse events. This would be pretty rough, since I would need to prevent the control from appearing to have focus even though it technically would have focus
Dim frm As Form
For Each frm In Forms
Set frm = Nothing
Next frm
The above code is what I used in VB6 to close all forms associated with my programs before my program closed. I have been searching for information on how to make sure all forms are closed when closing a VB2008 program.
I have seen info on using the Project Property Shutdown mode When startup form closes and I currently have this set.
Is this all that is really necessary? Will the garbage disposal close everything else to free up RAM?
Also, if I have several forms open and want to close all from the main form without closing each one individually, what is the best approach? Is there a collection like in VB6, go through the collection, compare it to the name of the main form and close it if it is not the main form?
I've made an app with vs 2010, which holds a mainform. On it is a menutoolstrip with button, when I click on that button a second form is opened on a second monitor and the button is being checked (different color).
When I click the button again, it is unchecked, but the form on the second monitor is still open, while it should be closed.
[Code]...
I'm trying to print my form which I created with Visual Studio. I'm using power pack printing. All goes really well but I'm missing 2cm on the right side of my printout. Page on printer is set to A4.
This is what i try to do but no luck:
PrintForm1.Print(Me, PowerPacks.Printing.PrintForm.PrintOption.ClientAreaOnly)
Whatever I change, it is always printing the cropped page. I'm using xps printer at the moment and there is no zoom option. Can I set the form to zoom to fit the page?
The borders are also too big. Thats why my printout gets cropped, but I have no idea how to change it.
The size of my form is 711 x 1034 pixels, it's a desktop application.
I loaded up VS 2010 to work on a VB.NET project but for some reason the Run/Pause/Stop buttons are missing from the toolbar and I cannot set breakpoints. Only changes from yesterday to my system was this morning Windows was trying to install Visual Studio SP1 updates but all failed.
View 2 RepliesI am developing a software that catches streaming data. Unfortunately, there is no pattern or sequence on how this data comes in. So what I have initially done is to catch then write to my MS Access DB. Unfortunately, while writing to the DB, I am missing some data that is streaming since writing takes a little bit of time before it goes back to the catching syntax.
I am planning to multithread the DB writing then just call it from my main program. Do guys know any website/tutorial where I can learn the basics for multithreading? I am using Visual Studio 2010. Or if ever, does any one of you have a sample program where I can just learn from?
I have a filter which is applied to a database on a listboxchanged event, and applies the listbox.text as the filter, so for example if the selected item in the list box is 'Terminator 4' then thats the filter. Its set on the listbox selected changed liek this;
[Code]....
I have this piece of code which goal is to compare ALL records from recordset rs1 to ALL records of recordset rs2. Im doing something wrong because, when the code finishes I find that some records that fulfill the matching condition are not being considered as matched.
[code]...
The following code is a what I have done in order to show a MsgBox when an exit ITEM on a MenuStrip is clicked then it will give two different choices Yes and No. If Yes then it will close the application but if No then it should stay on the same page.
Private Sub ExitToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitMenu.Click
MsgBox("Are you sure you want to exit the program?", MsgBoxStyle.YesNo)
If MsgBoxResult.Yes = True Then
Application.Exit()
End If
How can I ensure an application is fully closed when the user selects the close window X at the top of the form. It appears to just close the current form by default which is leaving the program still loaded in memory when the user thinks they have closed it. I have tried capturing the close and running application.exit but this closes the whole application even when I only want the current form closed.
View 10 RepliesI have an app that is on a network drive. Around 100 people will be using the app.
Right now, I have 2 people testing it. They found a couple of bugs, I fixed them, and made the changes.
However, before I could update the app, they had to close it because I can't delete a file that is in use.
how I might prompt the user that the app will be closing in "x" amount of seconds for updating?
I have noticed when I close a form I have invoked using form.showdialog the form does not appear to be totally removed. If I load a value into a textbox and press my cancel button [Me.close() Return] and then reload the form the value in the textbox is still present. Also bindings are failing because they are already set up
View 10 RepliesI have been using the VB IDE for many months on a VB6 translation to vb.net 2010. I have had no troubles building and running in debug,until the message below just appeared. This now prevents me from running in debug. I have not used Publish in the Build menu or used ClickOnce. The Project - application page has "enable XP visual styles" checked. I do not want this unchecked, which will remove the error message below.
The error message is:
Error 2 Could not find file 'Microsoft.Windows.Common-Controls, Version=6.0.0.0, Culture=*, PublicKeyToken=6595b
[code].....
I have a databound datagridview. When I click the close form it goes into an endless loop. The dataerror event is repeatedly called and the context field states that there is a formatting error. Never had this problem in 2008 ?
View 10 RepliesOkay so my program opens excel, reads a few cells, and closes excel. But, it does not fully close excel and after multiple runs, I have multiple EXCEL.EXE *32 in my process list. It also asks for a save when it's closing when there are no changes being made, is there any way to avoid this? And how do you get Excel to fully close?
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The program closes, without asking for a save, gets me the data I need, but remains in the process list.
Using this for my Imports
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I am working on a football simulation. I'm writing the code when a quarter or half ends. If any of you ever played Madden Football you know that when the time reaches zero the play calling screen disappears. This is exactly what I am trying to do. The play calling screen in my case is a dialog controlled by the main game screen (the main form controlling most of the game). I use the .ShowDialog event to display it. What I want to do is close this dialog on a tick event.
I'm not sure how to access this dialog if it was created as a local variable. I assume it's like finding any other control that was dynamically generated at run-time but I can't wrap my head around the proper syntax. Once I get the dialog in the tick event I want the dialog to close and return all control to the main game screen. I've never tried to close a dialog without the user clicking a button on the dialog itself. This is different because the parent control is closing the dialog with its own event (Tick).
I've created a program with a login form. Once you log in, the login form should close and the next form should display... my problem is...
If I use Me.Close()... than both forms close and the application terminates.
If I use Me.Hide()... than the application never unloads from memory and run indefinitely.
So what do I do? Neither of these work how I need them to.
I have a windows application. I would like to run a statement while exiting my application. I tried adding my statement on FormClosing event. but it only executes if the application is closed properly. However, If the application is closed via task manager or system is restarted or logged out, etc. then the statement in closing or disposed event is not getting executed.
Private Sub Form1_Disposed(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Disposed
MsgBox("disposed") End Sub Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As FormClosingEventArgs) Handles Me.FormClosing
MsgBox("closing")
End Sub
can some one tell me how to get my statement executed even the user tries to log out or shut down or application is closed via task manger.
I'm sending a message on FormClosing(...)... This works ok. However... I have multiple tabs with a textbox or rtb, in it. When I change the text, whatever, it is modified. Now, when I close the app a messagebox appears that some of the textboxes or rtb's have been modified. This message is shown for each textbox-rtb-control. Which means, that when I have changed something in 4 different rtb's or textboxes I get the message 4 times. How do I change that to only one time?
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I have a simple form that when filled out with a case # will return the name of the person that is handling the case. I am getting an error on any machine that does not have VS 2010 installed on it. The error is when ever the user uses the close button (the red X) at the top right of the form the following error is generated:
System.InvalidOperationException: Collection was modified; enumeration operation may not execute.
at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
[code].....
I have the following code to close a form which is a child. The problem is that when it closes, it closes the MDI parent too.
Private Sub frmTransaction_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
If ListView1.Items.Count >= 1 Then
[Code]....
I have no problem loading the contents of a text file into a richtextbox(rtb) with the below code. I can then edit and save the contents of the rtb to the file, and clear the rtb.
However, is the file still open? Does loading a text file into the rtb actually open that file? I am asking because I can't find any methods or techniques to close a file that has been loaded into a rtb. Is clearing the rtb the correct procedure?
Public Class Form1
Dim openFile1 As New OpenFileDialog()
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
[code].....