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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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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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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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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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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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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Jan 20, 2011
I have three table and I want to put the three table's data in one variable and from that variable i will produce the datatable and then want to write the data in CSV file.I am Following this step..
Void
GetDetails()
DataClasses1DataContext
[code].....
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Dec 26, 2010
I have a login form that consists of 2 text boxes: txtUser, txtPass. Now these are not bound to any data table & I don't what them to be bound. When a new user enters his user name & password, I want to add these on a data table that has two columns: User, Pass. Data table information: Data Source = Login.accdb, Data table = LoginTable, Connection = LoginCn. I use visual basic 2010. So how do I do this?
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Apr 23, 2009
I have this code to edit the datarow of my table adapter but t doesnt update the table. I think i have a missing code that's why but i cant figured it out. by the way im using vb2008 and SQL as my database. [code]
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Jul 8, 2009
I currently have this working already for one of my combo box's, but when i try to use the same code i get this error ''There is no row at position 6.'' . The are 2 fields in the table asset_type_id, asset_type_name', im trying to dispaly the values in a combo box for the field 'asset_type_name.
the code for ' Friend Sub RetrieveCustomerInformation2()' works but the other friend sub throws the error.
Imports System.Data.SqlClient
Imports System.Data
Imports System
Imports System.Data.OleDb
[Code]...
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May 23, 2010
While am using the below code it was throwing an exception update unable to find table mapping [Customer] or data table customer.
[code]...
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Jul 7, 2011
I have 1 access database with 3 tables How do I make the combobox get data from one table and input it to another table?ex.I have a table with all my Carriers and another table with jobs that are assigned to Carriers?
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Jun 7, 2011
i have a combobox on the form and a datagrid viewer .no i want to display the table which selected on combo box..
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Feb 23, 2011
I have a form that fills a table adapter with this:
Me.Scratchpad3TableAdapter.Fill(Me.MDRDataSet.scra tchpad3
and what I'd like to do is when users edit something on this form that they post the changes to a table called exceptionsedit which is not part of that dataset. What I don't know how to do is to how to insert those edits to the exceptionsedit table.
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Mar 20, 2012
i need to copy all the rows with data from a existing table to other existing table through button click
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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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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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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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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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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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Jul 13, 2011
decryption error : Padding is invalid and cannot be removed.
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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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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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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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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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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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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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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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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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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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