IDE :: Error ContextSwitchDeadlock - Eliminate?
Feb 13, 2009
when i run code after 60 sec it display following error what is this error and how to eliminate? ContextSwitchDeadlock was detected Message: The CLR has been unable to transition from COM context 0x2040a8 to COM context 0x204218 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.
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Nov 3, 2010
I get the ContextSwitchDeadlock Error when I set try to RichTextBox text to some large text, empty it and then set it to some other large text again.[code]...
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Mar 30, 2010
I'm using VB .Net 2008. I have been experiencing a wierd problem with my FileSystemWatcher that I haven't been able to resolve for the past few days. The watcher only catches the first event. The watcher is enabled via EnableRaisingEvents. I'm not sure why it quits. I was getting an ContextSwitchDeadlock error, so I placed <MTAThread> before the sub to switch to multiple threading. The errors stopped, but the FileSystemWatcher doesn't activate after the first event. Has anyone experienced this before? How do I fix this? [Code]
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Jan 21, 2011
I've developed a windows service that connects to a database and executes a Stored Procedure when running in debug mode I get the following message: "ContextSwitchDeadlock was detectedMessage: The CLR has been unable to transition from COM context 0x1ffc20 to COM context 0x1ffd90 for 60 seconds. The thread that owns the destinationcontext/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations."
vb
'Explicitly imports a namespace into a page, making all classes and interfaces of the imported namespace available to the page.
[code]....
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Feb 12, 2009
when i run code after 60 sec it display following error what is this error and how to eliminate ?ContextSwitchDeadlock was detected Message: The CLR has been unable to transition from COM context 0x2040a8 to COM context 0x204218 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.
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Jul 15, 2009
I am trying to get the html source of url...I AM USING THE AXWEBBROWSER AS OPPOESED TO THE CONVENTIONAL ONE..I have this code to display a textbox in my Axwebbrowser containing the Page source when the document is completed. Here is the code: [code] The maximum text length of the textbox = 99999999999..When I try to get the document.Tostring, I get this: System.__ComObject..And When I try to get the Html as a htmldocument I get nothing, and when I try just go get the document I get nothing.Does anyone know how I can eliminate this malfunction / error? Can anyone show me a different code to get the html / source of the document of the webbrowser?
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Jun 19, 2012
The following code causes a "Warning" that Variable is used before value assigned.How do I restructure this Try/catch to eliminate error on the myreader.close command in the Catch part? Code appears to work fine but I dont like Warnings. [code]
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May 18, 2011
I'm getting this message in my 2010 debugger suddenly for some reason:The CLR has been unable to transition from COM context 0x4c4b68 to COM context 0x4c4cd8 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.
It happens while I am looping through a datatable. In each iteration I do a SQL Select lookup and a a SQL Update if I don't find a matching record.
For Each drCurrentRow As DataRow In m_Dataset.Tables("Group").Rows
Dim boolFound As Boolean = False
CheckForRecordInTemp(boolFound, drCurrentRow.Item("ACTIVITY_GROUP"))
[code]....
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Jun 9, 2010
Message: The CLR has been unable to transition from COM context 0x1b2008 to COM context 0x1b2178 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulatingcontinually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.
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May 26, 2012
Is it possible to prevent any row in a grid from being highlighted? I'm familiar with the "SelectionMode" property. I manually add rows to a DGV and the 1st row is always highlighted. I'm trying to prevent this from happening.
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Nov 10, 2007
How to eliminate decimal points in VB.net.what kind of function should i use.
For example, i have number x= 23.13 i only want to show x= 23 and if i have another number x=23.89 i also only want to show x= 23
[code]...
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Feb 29, 2012
Lets say I have a variable: varEmail. It contains a variable equal to the user's email address, so it might contain a value likeNow, lets say I want to get just a portion of the email address, e.g. strip off the domain, like so:
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Feb 14, 2012
I have issue is its creating mlitple records of same check number in payment headerfile1 and payment headerfile2 for diffrent invoices.
[Code]...
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Sep 23, 2009
In ASP.Net Web Forms there are cases that I've come across that create order dependent code. As an obvious code smell I'm looking for solutions to solve this problem.
A pseudo-code example would be: Calling Code :: Page.aspx
protected void Page_Load(...) {
var control = LoadControl("ControlX.ascx");
// Ugly since the control's constructor is not used by LoadControl
control.SetDependencies(...);
[Code]...
LoadControl has two signatures, the one used above accepts a string for the control classes physical location and correctly creates the child controls. Whereas the second signature accepts the control class as a class type, and any parameters for the constructor, however the child controls are not created as detailed in TRULY Understanding Dynamic Controls.
So how can I eliminate this order dependency in the cleanest way? My first thought is that if I dynamically created the child controls in ControlX, but then that can be cumbersome for larger controls.
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Nov 25, 2011
So basically I'm making a BINGO game on vb 2008 and i have a "call number" button. The letter and numbers get added to a list box each time. But i do not want the same number to be called. Is there a way that the program can read the items in the list box and not generate (Randomly) the same value again to be displayed in the label.This is what i have:
Callnum = Int(75 * Rnd() + 1)
lstNumbersCalled.Items.Add(lblCallLetter.Text & " " & Callnum)
[code].....
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Feb 24, 2011
I have a Login Form and ...
I have this code to create an account on my disc:
Try
Dim aa As String
Dim ab As String
[Code].....
But now I want creat a button to emilinate accounts, and I dunno how to do that.
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Sep 5, 2010
I have a text box where I only want to be able to enter each character once, so no AA or 99, only one of each character. This is so I can paste into the field, but where any duplicates would be eliminated. I've tried using this code, but am not sure where I go wrong.
[Code]...
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Dec 26, 2011
I'm sure there has to be a simple answer or easy workaround for this, but I can't seem to track one down anywhere that I've looked/asked.So, here is my question:I'm printing some lines of text. I want to lose the footer.
[Code]...
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Jan 19, 2011
I have written a number of classes in my time in VB.NET which set the basic elements in a custom New constructor through parameters. This makes things easier and enforces discipline. However, using Public Sub New() becomes pointless. If someone else tried to use this class, he or she could make a mess of it all by using Sub New without the arguments. I'd like to remove this method but I haven't found out how. I could make it raise an exception, but that somehow seems unseemly. I'd like a neater way. Does anyone know how?
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Jun 7, 2010
Not sure how to do thisI have a hierarchy:
Deals at the top
Deals is a collection of Deal
Deal is a collecton of DealSlots
[code]....
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Aug 14, 2011
I am trying to find a solution, in eliminating repetitive string names, say for ex.,in a literal field, i am populating names of the contributor of certain article's history version, and so, if "ron" has contributed to the versioning of an article 3 times, the name "ron" gets added to this literal control, and outputs "ron" 3 times.
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Feb 17, 2012
Dim regMatch As String
[Code]...
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Apr 12, 2010
How to get rid of all the buttons - or boxes - on a form's caption bar without actually eliminating the bar itself? The closest I've gotten is setting the FormBorderStyle = FixedToolWindow, but that still leave a close button ('x'). If I set the control box property = False, that get's rid of the bar itself. I want to the users to still be able to grab the bar to move the form around, but not to minimize, maximize, or close via the caption bar - only the buttons I have on the form. It's always difficult when user's want something that's not standard windows design.
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Nov 24, 2011
how to eliminate duplicate random numbers displayed in labels ( a column of 5 labels). This is for a BINGO game i am doing. I have tried a Do .. Loop until structure with a for next but i am not sure how to proceed:
Do
For NumB = 0 To 4
B(NumB) = Int(15 * Rnd() + 1)
itemarrayB(NumB).Text = B(NumB)
Next
Loop Until
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May 13, 2011
I have a panel with the BackgroundImage set that I'm using as a button. The panel also contains a PictureBox with a png image loaded so that parts of the image are transparent and the panel image shows through. On MouseDown I change the panels BackgroundImage, then on MouseUp I change it back again. The problem is that when the panel image changes, the PictureBox flickers badly when redrawing its transparent areas. I've tried using the DoubleBuffered property of the form its on; no luck there. I've also tried SuspendLayout just before changing the image, refreshing the PictureBox, then ResumeLayout. Still no luck.
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Nov 25, 2011
I am making a Bingo game. I have a button which keeps on calling numbers which are then added to a list box. How do i make it that the numbers called don't repeat (get displayed in the "number called" label). Is there a way to use items already added in the list box to eliminate duplicate numbers.
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Sep 11, 2009
I'm doing a simple database thru VS2008 and Msaccess without using any builtin relationship between records, now i need to know how i can retrieve specific data from access using the oledbadapter or any, example seek if the value from the textbox1.text is already existing in msaccess table then msgbox "Record already exists.", note that the code is in keypress event of the textbox1.
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Nov 1, 2011
I'm trying to create a COM User Defined Function automation add in for Excel 2003/2007/2010 and create a setup program that will install the add-in without the error message "Cannot find add-in 'mscoree.dll'. Delete from list?" occurring when the automation add-ins added to excel. This error occurs when running the setup program on PCs other than the development PC.
Using this example by Eric Carter combined with this Stack overflow answer. I have tried both methods of registering both the custom dll and mscoree.dll. Solutions for this problem are well described in both of those links however neither the registry edit of the setup program described in the stackoverflow link nor the code from the other link that should register mscoree.dll works for me when installing with a setup project on another PC (64 bit Windows 7 PC not used for building the program). (In fact the last comment on the Stack overflow link is a person with the exact same problem that I am describing here.) The add-in does work, I just want to prevent the error message.
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May 28, 2007
How to Eliminate duplicates in excel using macros and place it in another excel sheet The duplicate record must also be transferred.
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Nov 8, 2011
I'm developing a vb.net program which shells to a program located at C:RippersSmartRipper 2.41SmartRipper.exe. However, I'm getting "Do you want to allow the following program from an unknown publisher to make changes to this computer?" This application when run from my laptop doesn't get the UAC message. However, running the same application on my desktop I get the message. Both are running Windows 7 Pro 64 bit. This app needs to run without intervention so I can't have it stopping without a way to programmatically keep it going.
[Code]....
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