How To Commit The Deleted Row
Feb 20, 2009i am deleting the row from the datagridview using following codedatagridview1.rows.remove(datagridview1.currentrow)but it is not commiting.how i can commit?
View 4 Repliesi am deleting the row from the datagridview using following codedatagridview1.rows.remove(datagridview1.currentrow)but it is not commiting.how i can commit?
View 4 RepliesI really am stuck. I can add records to a table ok . when i close and restart my code the new records are still there but deleteing does not work. I delete the records, they disappear. I close and restart the code agian but the deleted records return. this is my code.
[Code]...
How do you commit a datagridview row?
View 3 RepliesMaybe there is a better way to do this. The jist of I want is to have SQL Server raise me 2 types of errors: a WARNING and an ERROR from a trigger when I update a table. If SQL server returns a WARNING the trigger should COMMIT but show the warning to the user (using .NET - preferably through a SQL Exception which is only raised if severity > 10) and if it is an ERROR the trigger should ROLLBACK and show the ERROR to the user (through a SQL Exception).My attempts (needless to say this isn't working) at this was to have a trigger like this:
ALTER TRIGGER [dbo].[TR_TRANSACTION_UPDATE]
ON [dbo].[tTRANSACTION]
FOR UPDATE
[code]....
I'm binding user settings to a bunch of controls on a WinForm dialog that has OK/Cancel buttons. While this works great to read in the bindings in, I would only like to commit binding changes if a user clicks OK, and not if they click cancel. Is there a simplistic setting to achieve this rather than managing all reading and committing myself?
Right now, let's say I have a textbox that binds to a user setting called "country". It has "United States" in it and if a user changes it to "Bolivia", that will get committed as soon as it is typed instead of when the OK button is pressed.
I'm binding user settings to a bunch of controls on a WinForm dialog that has OK/Cancel buttons. While this works great to read in the bindings in, I would only like to commit binding changes if a user clicks OK, and not if they click cancel. Is there a simplistic setting to achieve this rather than managing all reading and committing myself?
View 1 RepliesI have a DataGridView and in it a CheckBoxColumn, when I click a cell of that column the check box gets checked.I do it like this:
dgvMessages.CurrentRow.DataBoundItem("have_read") = 1
but the change does not get committed to the DataSource (or at least not immediately), so when I search through it I get wrong results.
I can't call AcceptChanges as that will refresh the grid and cause unwanted side effects... What can I do about this? Is there such a thing as an 'AutoCommit' property on a DataGridView?
[code]So both methods seem to step through fine but don't commit the changes back to the database. This function is my only 'edit' function. It needs to look for the datarow which is to be edited. Edit it and then save the changes to the database.My other two functions create datarows and work fine. This one I just can't work out. I have a dataset with two datatables. This is running as a web service. Database is MSSQL.
View 1 Repliesand in both table i have to insert values and later i need to update one table... the problem is when there is any exceptions in update it need to rollback fully and it also the values which have been inserted must be rollback..
View 2 RepliesI got the code below from a book but it doesnt seem to work:
[Code]...
So I'm going through a tutorial on how to get stuff in my vb form to update a Access Database. I know, I should be using sql, but Im just learning. Anyways, here is the code..
[Code]...
Created dataset with tableadapter.Dragged dataset and tableadapter to the form so I can reference it in code.New records successfully add to the dataset but will not commit back to the database.Gives no error or clue why it won't work.TableAdapter insert statement was created automatically and is parameterized (@p1, @p2, etc.), but I am trying to avoid those parameter.add statements as I want to be able to use a field-by-field format without having to essentially repeat the schema of my database in code with parameter.add statements.Command object and INSERT statements work fine, but then you always have to construct an INSERT statement -- a pain if they're complicated.I want something as simple as working with a ADO recordset,but in .NET.What can I do to accomplish the following without parameter.add statements? [code]
View 6 RepliesWhen writing gridview Event, We must write the Commit and Rollback in event. Can not run the Event if don't write Commit. I want to know what for writing commit and rollback???what a differences between commit and rollback?
View 1 RepliesWhat we want to do is save an entire control into Cache and recommit the properties on page load, including data items. But we'd like the controls to exist already in the page.
[Code]...
I would like to use the transactions commit/rollback against a sql server rdbms within a VB 2010 module. I understand how these can be executed within a Transact-SQL session, but cannot seem to be able to code them correctly within VB as these are more like DDL statements.
View 4 RepliesI'm trying to run a transaction and I'm having some issues. What would cause a query to be executed before the transaction.commit() is called? Is there a specifice order that queries should be ran when working with a transaction? I have 1 update query that will always execute no matter what, before the .commit() is called. [code]
View 4 RepliesI am concerned that this code is copying bytes into a temporary buffer before writing directly to file.
I feel like there should be some method of copying bytes directly from the tail end of the main buffer directly to file.'this code copies all bytes starting at integer index from the main buffer into a new file: ga.exe
'declare temporary buffer
Dim EXEBytes(bytes.Count - index) As Byte
'copy subset of bytes over, starting at index
System.Buffer.BlockCopy(bytes, index, EXEBytes, 0, bytes.Count - index)
'write bytes from temporary array into file
File.WriteAllBytes(Server.MapPath("/BIN/ga.exe"), EXEBytes)
I have an application which I've developed which queries Active Directory information and stores about 15 properties into a Datatable which is kept in memory. I need to decrease the amount of "Commit" memory it is setting aside. The application stays active in the system tray and allows for quick searching of information along with pictures for users. I have a class, which is able keep memory usage down pretty low. It runs on a timer every 10 seconds and listed below:
[Code]...
I have tried mulitple OS ( XP, Win7, Server 2008) using my administrative account as well as implementing in a WCF windows client service with local system rights. I have beeunsuccessful at commiting changes to the queue with a win32 access denied error on the commit line
Sub Main()
Console.WriteLine(PrinterDefaults.ToString())
Console.ReadLine()
[code].....
I have an application that saves details to then be viewed in a datagridview on another form. Clicking on an entry in the datagrid (I want to make this double-click, but haven't bothered to try yet) highlights the row, and loads the values to a new form, in read-only text boxes. Clicking Edit changes the read-only value of these text boxes and allows you to edit (obviously) the contents. I have another button, Save which I want to click to commit the changes to the loaded items in the datagrid.
View 4 RepliesI have a form with multiple datagridviews. On save the entire dataset will be serialized to a strongly typed property bound to a sql varbinary(max) Works fine. Of course the current "dirty" cell will not be saved as mentioned here :
[URL]
My problem is the user could be coming from any one of 20 datagridviews when they click SAVE. Is there any way, short of checking for a dirty cell in each datagridview to commit any dirty cell before the save ( clicking another textbox control before the save does the trick but calling the focus() of that textbox prior to the save does not ) I was thinking perhaps catching the event of leaving the grid but it seems the base problem is clicking a button (for reasons I think I understand) does not fire lostfocus events for the current control and it doesn't seem the click handler args knows what the last current selected control is.
Using the walkthrough from [URL], I implemented a DatagridView in virtual mode, totally unbound, in VB 10 Express (we are talking WinForms).
I understand that CommitEdit (DataGridViewDataErrorContexts.Commit) commits the current cell's contents to the data cache.
The example uses row-level commit, i.e. it pushes the values into a row buffer until the current row is left. Only then the row is added to (or updated in) the data store. That's exactly what I do, too.
Question -- how can I commit the current row programmatically without leaving it? (I want to commit the whole row, not just the current cell.)
If the user leaves the row, there is a RowValidating, RowValidated, RowEnter event sequence where the datastore update is taken care of. So one idea (currently my only one) was to simply re-set CurrentCell to Nothing, for example.
But I cannot just set the DataGridView's CurrentCell property to Nothing (or any cell outside of the current row) since I want to commit from within an event handler of a custom edit control created by a custom column, and I see an System.InvalidOperationException exception when setting CurrentCell there.
In fact, it is a tiny button right to a combo box, i.e. I create a DataGridViewComboBoxCell descendant which is a DataGridViewComboBoxColumn descendant's edit control. My special ComboBox cell adds a tiny button which should commit the current row. Unfortunately, that button's _Click event handler cannot change CurrentCell since DetachEditingControl throws the exception then.
Obviously, I must delay the CurrentCell re-assignment until the whole _Click event has been processed. Or what? How would I do that -- register a custom Windows message, SendMessage that one to me, and override the windows procedure of the form so it re-sets CurrentCell when this message is received? (Hello?)
There should be a rather easy way to let DataGridView commit all changes by firing the events that I handle to perform the datastore update, no?
I would like to track when a line is deleted from a RTB. What I try to do is capture backspace and if current length of that line = 0 then it means the line has been deleted.
[Code]...
I am using a DataGridView, which is bound to a dataset. There is a bindingNavigator as well.
when a user deletes a row by clicking "bindingNavigatorDeleteItem" button, I am trying to get the row being deleted.
private void bindingNavigatorDeleteItem_Click(object sender, EventArgs e)
{
int crow = gridEventType.CurrentCell.RowIndex;
but it returns the newly selected row AFTER deletion of a selected row.
so, If I have two rows
0
1
2
and I delete 2
crow is 1, not 2.
Am I missing something here?
2. How do I know whether certain rows are modified in datagridview?
After Deleted Record, Will Add To Another Table
View 2 RepliesThis code is intended to grab the ID of the deleted record, the user who deleted the record, and the date and time the record was deleted and insert it into a hostical table.So far, once a record is deleted, the code grabs more than one deleted record.
Protected Sub GridView1_RowDeleted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewDeletedEventArgs) Handles GridView1.RowDeleted
Dim connStr As String = ConfigurationManager.ConnectionStrings("Constr").ConnectionString
Dim cnn As SqlConnection
[Code]...
I have written a method which deletes a record from the database. Public Overrides Sub Delete(ByVal intDeletingUserID As Integer, Optional ByVal blnLogChanges As Boolean = True)
[Code]...
I need to display to the user whether the record can be deleted or not when I implement this method.
i delete the row ID 3,paper,20 then the qty of paper will add to another table2 total field.how to write the code after delete record will add the qty field to another table2 ?
[Code]...
I'm getting an exception with the message "Deleted row information cannot be accessed through the row".
I already searched from similar questions but so far i wasn't able to find the solution for my problem.
The exception happens in the line
Code Block
I had to reinstall visual basic express edition 2008 on my pc.I deleted the old files from c dirve.I tried to install it from the ISO downloaded from the microsofts website but after i specify the drive (drive F) to install it on after about 2-3 minutes it says it failed to install it. [code] Does it have to be installed to drive c or something or is maybe the iso damaged? I just transferred it onto this pc and mounted the iso image using a program MagicIso which i used last time to install it.
View 11 Replies