Wpf - Eventhandler Removed If The Control It Is Set On Removed?

Sep 15, 2011

We are developing an application that looks like this: Mainwindow - PaneGroup - Pane

What we want to do is add a handler (AddHandler Pane, AddressOf MethodName) on the mainwindow and throw the event in the Pane. When we want something to change on a collection in the mainwindow, we throw that event in the Pane.

My question is if the pane is removed from the panegroup (doesn't exist anymore), does that handler still live on the mainwindow?

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Make The Controls Stack And Fill Up The Available Space Left By A Control If The Control Is Hidden Or Removed From The UltraGridBagLayoutPanel?

Sep 8, 2011

I am wondering if anyone has any idea how to make the controls stack and fill up the available space left by a control if the control is hidden or removed from the UltraGridBagLayoutPanel.

Example:

[Textbox 1]
[Textbox 2]
[Textbox 3]
[Textbox 4]
[Textbox 5]

If I hide [Textbox 3] as of now, it will disperse the space left equally and pad the remaining text boxes with the space. However, I would like it to do this...

[Textbox 1]
[Textbox 2]
[Textbox 4]
[Textbox 5]

Where all the text boxes will move up and [Textbox 4] will completely consume the space left by [Textbox 3].

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Textbox Control (Still Showing After Removed From Design View)

Jun 16, 2012

I created a textbox control on a form and I gave some integer value to it from runtime but after sometime i removed it from design and code also.. But when I run program its still showing with that integer value. So what should I do. How should I remove that control?

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Immediate Window Removed From Menu?

Mar 24, 2009

I was having trouble debugging an app because I couldn't invoke the Immediate window. I finally ran across a keyboard shortcut to invoke it (Ctl+Alt+I) so my 'immediate' problem is solved, but now I'm trying to figure out why the Immediate window option doesn't appear on my Debug menu like it does on my co-workers? (The menu-designated shortcut, Ctl+G also doesn't work for me.)If necessary I suppose I can customize my menu to add it back in.

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Removed From A Table And Does Not Have Any Data?

Oct 16, 2009

I am using a dataset class, associated binding source, and a table adapter. There is no binding navigator. Inserts and updates work well. However, though deletions look like they are working as they should, when the form is closed the user is prompted with a message do you wish to save data. Upon doing so the error "this row has been removed from a table and does not have any data. beginedit" is displayed.To delete the record I am simply running the following

code:UserRolesBindingSource.EndEdit()UserRolesBindingSource.RemoveCurrent()The form save routine is simply:Try UserRoleBindingSource.EndEdit taUserRoles1.Update(me.dsARMData.UserRoles)Catch ex as Exception MessageBox.Show(ex.message.tostring)End CatchWhen I did have a bindingNavigator on the form, there were no issues with deleting records and doing subsequent saves.. I understand the binding navigator also calls the RemoveCurrent of the binding source, but what else is it doing to not have the error message display that I don't have?

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Removed Number From List Or Not?

Feb 22, 2012

Here is the code I have amended after getting the answer from previous thread (Spinning Numbers)

I'm not sure if I am removing the random number from the list or not as the number shown in the Label(currentnumber) does not match the one showing in Label1, which is the one I'm using to check which number has been removed.

Private Sub Tmr_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles Tmr.Tick
'Show spinning numbers for decoration

[Code].....

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Javascript - HiddenField Value Doesn't Get Removed

Nov 1, 2011

I have a javascript function that moves items between 2 select multiple box, when I move item from the source select box to the destination select box, I add the value to my HiddenField so that I can access in code behind, works fine but when I move item(s) from the destination select box back to the source select box, I try to use : hidMemType.value = ""; to clear the hiddenfield. I thought this works but apparently in the event of a postback, the item still gets stuck in the destination box.

// Move items to and fro select box
function move(sourceFrom, sourceTo) {
var hidOutlet = document.getElementById('<%=hdnOutlet.ClientID%>');

[Code]....

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.net - Removing Controls - Lot Of Buttons On A Form (144) That Need To Be Removed

Mar 11, 2012

I have a lot of buttons on a form (144) that need to be removed. All their names begin with "R". So I used this piece of code.

Sub RemoveBookingButtons()
Dim cntrl As Control

[CODE]........................

However whenever I run this sub function, it deletes every other button starting with "R". better code or point out if the flaw is in that piece of code or it is hidden somewhere else in my program?

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Decryption Error : Padding Is Invalid And Cannot Be Removed

Apr 23, 2010

I have been writing a security class in my application, I am able to encrypt the string correctly and without error. However every time when I try to decrypt this string again, i get an error with this as it returns the following Padding is invalid and cannot be removed.

Here is the code:

Public Function DecryptKey(ByVal plainText As SecureString, ByVal key() As Byte, ByVal iv() As Byte) As SecureString

Try

[CODE]...

And it provides a stack trace with:

at System.Security.Cryptography.RijndaelManagedTransform.DecryptData(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount, Byte[]& outputBuffer, Int32 outputOffset, PaddingMode paddingMode, Boolean fLast)

[CODE]...

I have found simular issues on web, and most of them say that the IV is not the same the encrypted version, but I can confirm that the IV is the same as they both access the exact same variable.

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Decryption Error : Padding Is Invalid And Cannot Be Removed?

Jul 13, 2011

decryption error : Padding is invalid and cannot be removed.

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File Removed Error In Published Folder

Mar 13, 2010

I made an app in vb.net express edition after publishing there are many files in published folder, my question is if a user removes any of files in the published folder or replaces it with other files and runs the app the app must show an error is it possible?

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IDE :: TabStrip Loses HighLight If Tab's Caption Is Removed

Jun 19, 2012

I'm using a TabStrip control in my VB6 app (mscomctl.ocx).(Annotation: to use the TabStrip control add the component: Microsoft Windows Common Controls 6.0(SP6) )When hightlighting e.g. the 2nd tab ...

TabStrip1.Tabs(2).HighLighted = True

and removing the tab's caption

TabStrip1.Tabs(2).Caption= ""
.. tab2 loses its hightlight !!

To prevent tab losing focus I fixed it with the following code:

For Each e In TabStrip1.Tabs
If e.HighLighted = True Then
e.HighLighted = True
End If
Next

Is it a known bug? Here is my vb6 sample project showing how the tab loses the highlight if the tab's caption is removed.

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Removed A Column From A Database And Broke Program?

Feb 2, 2010

I am writing a program using databases and half way though I decided a column I had was irrelevent and removed it from my database. I have gone into my code on my forms and removed all references and removed it from the data table but I am still getting an ArgumentException in an undefined location. Am I missing somehwere that I need to remove this that was automaticaly generated or something?

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RijndaelManaged - Error: Padding Is Invalid And Cannot Be Removed

Mar 19, 2012

I am using RijndaelManaged to encrypt just 4 bytes of data which produces a 16 byte result (i am using a 128 block size). When I try to decrypt these 16 bytes I get the message "Padding is invalid and cannot be removed.". (The base stream of the CryptoStream is a MemoryStream based on just these 16 bytes).

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Thread Is Not Being Removed When Removing Event Handler

Aug 22, 2011

I'm developing some code to detect new files in a directory and signal it in a new thread through the Created event of FileSystemWatcher. While testing this I noticed that after I removed the eventhandler from the event the thread that was being used was not closed. Why is that? Am I doing something wrong when I'm removing the eventhandler? [code]So first I start off clicking Button 2 to start the event handler. I copy a xml file to the Temp folder and the event will trigger and set the name of the thread. After that I will click Button 1 to remove the event handler. If I then pause the execution the Thread "UpdateSomething" will still be there.

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Remove NotifyIcon When Program Removed From Within Task Manager?

Mar 5, 2010

I have an application that's using NotifyIcon control. Everything is fine except when I exit the application by the Task Manager, the icon is still in the "system tray" area. I want it to disappear once I exit the application by the Task Manager. [code]...

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VS 2008 User Values Added And Removed From Listview?

Mar 22, 2009

I have a list view with 2 columns (Prodduct and Price). I want the user to be able to add there own values to the listview and have them save so that they will always stay there.I would also like users to be able to delete specific items from the saved list.

The values added to the colums are paired, and must stay together, as one value would be a product and the other a price, So they must, stay together. as a pair

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VS 2010 Removed Controls From Form Still Showing In Properties?

Sep 17, 2010

I've removed a few controls from my form, but they're still in the properties. I've looked in the Document Outline, but nothing. How can I remove them (save)?

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Make Label Visible Again When Text Has Been Removed In Properties Window?

Jul 11, 2012

I dragged and dropped a label from the toolbox onto a form (Label6) and stupidly went to the properties window and set "Text" to blank. Label6 shows when the program is run using F5 but does not show on the design surface if I want to move or remove it. How do I get it back onto the design surface or remove it completely?

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DB/Reporting :: Tables Removed - Encountering A Sudden Loss Of Table In Database

Apr 26, 2008

For the past 3 weeks now, we are encountering a sudden loss of table in our database, but with that. our .mdf file is still on its same size before this disaster comes along and again..anyone had encountered or know how to solve this problem.

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Events Firing Off Unexpectingly More Than Once , Manually Added/removed Event Handlers?

Sep 29, 2009

I'm creating a small game which when the user clicking a menustrip item "New game" adds event handlers to each label in a panel control.

For Each scoreLabel As Label In Me.panelScore.Controls
If Not (scoreLabel.Name = "lblLeftBonus" Or scoreLabel.Name = "lblLeftTotal" _
Or scoreLabel.Name = "lblRightBonus" Or scoreLabel.Name = "lblRightTotal") Then

[code].....

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Sql - Remove Characters From The Prefix Table And Make Sure Only From The Start Of String Are Removed

Mar 25, 2011

I need to be able to strip the following prefixes from product codes as you see I have included a simple query while yes the below shows me the cm im not wanting i cant use replace as it code replace any instance of cm the prefixes are held in the supplire table cross refer with the products table

prefixes are not always two chrachters for example can be TOW

SELECT * , left(prod.productcode, LEN(sup.prefix)) AS MyTrimmedColumn
FROM MSLStore1_Products prod ,supplier sup
WHERE prod.suppid = 9039 AND prod.SgpID = 171

[Code].....

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What Situation Will An Item In System.Collections.Generic.List Not Be Removed Successfully

May 20, 2011

in what situation will an item in System.Collections.Generic.List not be removed successfully?url...The way they phrase it makes me think that it is possible that a Remove operation on an item found in the List(Of T) could actually fail.

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Optimal Use Of Realtime Application List(of T) Avoid Internal Redim Of When One Extra Element Is Added Or Removed?

May 30, 2012

I am working on a realtime application where the data is addded to a List(of T) all the time. MB per minute

Elements older than X minutes shall be removed from the beginning of the list to free memory.

As far as i can understand will there be an internal (slow) redim when i add each element after i have reach the number defined with the Capasity metod. (I set that quite big from the start, but the data speed is unpredictable so it can be exceed)

What happens each time i remove and element from the beginning of the list , seems like it takes a lot of time, ? new redim ?

What is the most CPU fficient way of removing 1 or many elements from the beginning of such a list?

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VS 2008 - Decrypt Data Error "Padding Is Invalid And Cannot Be Removed"

Aug 6, 2009

I'm trying to decrypt some data but I get this error: Padding is invalid and cannot be removed. It highlights the _streamWriter.Close() line. This is the code I'm using to decrypt a file:

[Code]...

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Checked List Box Checked Data Pass To Listview [with If Uncheck It Is Removed]

Sep 22, 2011

my form contains a checked list box [data coming from the database] a combo box [bind to a database table product] and a listview [was previously a listbox]

[Code]...

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What Does "Hidden" Mean - Set These Properties In Code Or Does This Mean That Microsoft Has Not Fully Removed?

Nov 3, 2010

I am upgrading from Access 2003 to Access 2007. I found this page on the MSDN library http:[url]....Some of my code uses some of these properties that according to this page are "hidden" in 2007. So exactly what does "hidden" mean? Does this mean I can still set these properties in code or does this mean that Microsoft has not fully removed them but their functionality is dormant in Access 2007?

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VS 2008 : Error - "Padding Is Invalid And Cannot Be Removed"

Aug 25, 2009

I'm using this class to encrypt/decrypt a file:

vb.net
Imports System.Security.CryptographyImports System.TextImports System.IO Public Class EncryptFile Private Shared Buffer(4096) As Byte Private Shared _Rijndael As New RijndaelManaged Private Shared _Hash As New SHA256Managed Private Shared _Encoding As New UTF8Encoding Private Shared IV As Byte() = {12, 4, 58, 74, 52, 33, 69, 87, 47, 8, 23, 69, 85, 47, 85, 21} Private

[code]....

When I encrypt a file it gives me no error, but when I decrypt a file it gives me this error: Padding is invalid and cannot be removed. In this line:

vb.net
cStream.Close()

I don't understand why, because I'm using the same IV and the same key, I've even checked the generated hash, and to me, it seems the same.

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Deleting The Last String But Making Sure The Default String Cannot Be Removed

Nov 26, 2010

i am creating a currency converter in VB 2008. I have a two buttons to choose the currency � or $. When one is clicked the String � or $ is entered into my textbox. I need a backspace button. and i used this code.

tb_result.Text = tb_result.Text.Substring(0, tb_result.Text.Length - 1)
tb_result.text = my textbox.

It deletes the last string, but i want it to not delete the Currency($�).

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Forms :: Dynamic Controls Disposal - Only 50% Of Controls Removed?

Sep 17, 2010

I have a query about dynamically added controls to a form. I have a series of buttons which are created and added at run time. I have a two drop down lists and two buttons which are created at design time. Button 1 creates a series of buttons called "Test 1.x" based upon the selection of the two drop down lists. This works fine and am happy with the logic.However.... Button two should remove all the dynamically created buttons from the form.This does not happen. What does happen is that 50% of the buttons are removed starting with the first one. WHen checking the loop it only enters the loop half the amount of times that there are buttons. Very strange. When the loop is run repeatability it will remove all controls. Why will my logic not remove all the dynamically created controls at once? What is wrong with my logic?

I attach two code snippets and the .net file for your consideration.Button method which creates the dynamically created buttons from the two drop down lists and adds to form

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Count As Integer
Dim MaxHours As Integer

[code]....

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