my concern is tht i have a application with mail for my intranet users. Now I wld like to rollback or undo my sent message within a short interval say bfore a minute , i can or should undo . But im confused where to start from .....i need u guyz to just show me the correct way , i will try and do it by ma self
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i have written code for undo and redo operations code for undo operation
[Code]...
now when i rotate the picture then tries to undo the image then this erorr comes Stack is Empty and program closes.
I have a page in which there are 3 sections.In the first section,i have some details to save in the Database.I am saving these details through a StoredProcedure(sql) named Procedure1.The details are stored in a table named Table1.There is a Primary key in the table named "ID".This "ID" is inserted automatically in the table.In the second and third sections, i have Grids for Data Manipulation.The Details are inserted in tables Table2 and Table3 through StoredProcedures(sql),Procedure2,Procedure3 recpectively.The "ID" which is generated automatically in Table1 needs to be inserted in Table2 and Table3.How can i do this?The Details in Table1 should get Rollback when corresponding data is not inserted in Table2 and Table3,ie. these 3 sections are to be inserted simultaneously.Now I have created a StoredProcedure in which i have combined all the 3 procedures.
View 1 RepliesI hope that someone help me , i have a form , a datagridview bound to datatable and a button named " Cancel "
What i want is when user add or change data in specific cell in current row in datagridview and click on a button " Cancel " the changes he made disapear (clear the row in case the user add new row ) or restoring original data when user makes change in existing data.i'm working with sql server 2008 database and visual basic 2010
I have 2 tables which I want to insert data into, table "CAM" and table "COut", after inserting data in "CAM" it shall return a retAutoID which will be hand to "COut" as one of the parameter required for it's insertion. I implemented a rollback in my Business Logic such that if "Cout" hits an exception error while inserting, the previous insertion for "CAM" will rollback even if successful.With the code below, I am getting this error after trying to do perform insertion:"ExecuteNonQuery requires the command to have a transaction when the connection assigned to the command is in a pending local transaction. The Transaction property of the command has not been initialized." [code]
View 2 RepliesI used code below to run rollback but in catch block, a warning message said that thistransaction used before has being assigned a value. How to void it?
Dim thisConnection As New SqlConnection("server=(local)SQLEXPRESS;" & _
"integrated security=sspi;database=MyDatabase")
Dim sql As String = "DELETE FROM Employee " & "WHERE ID = 10"
[code]....
I'm about to try something new in my VB2008 project, but not sure if it will work. Is it possible for me to set a "checkpoint" of the current solution code, so that I could "roll back" if necessary?
View 3 RepliesI am working on a Vb.Net application . I have a compose message web form where users will compose a message , but after the users click the send button I am inserting in the message table. All is working fine , infact great . Now I am thinking of adding a undo button where I will show this button if the user will click the send button . If the user clicks the send button and leaves the undo button the insert query will be fired. But if the user clicks the send button , but then he clicks the undo button the the insert query should not be fired or it should be rolled back ...or something ...I mean the user should be back on his compose message state as before.
View 2 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 RepliesI 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 RepliesHow to Undo changes in a form?
View 7 RepliesI am working with a registry watcher but I can't block changes. I found this link [URL] but unfortunately one of the links posted was broken maybe because it was posted years ago. I tried searching for "undo file changes" on VB.NET using search engines but I can't find any.I am using VS2008 Express ed.
View 5 RepliesHow does the "Undo" operation work? Not looking for a specific code, I am just curious to how it works.
View 3 RepliesI want to put undo in a small program
View 10 RepliesI'm implementing multi-level undo/redo via a pair of stacks. This works well, but I'd like to limit the number of undo actions (actually objects representing the state of the application) . Once the limit of actions in the stack has been reached, I want to keep adding actions to the stack, but get rid of the oldest (bottom) items as I go.
View 3 RepliesI understand that implementing an UnDo/ReDo function can be complex using Stack operation/XML serialization.
That is why I have started to search for commercial tools/components, but I could find such tools only for RealBasic, not for VB.net. Does anyone know where to get such tool/component, or has good example code to include various undoable operation into an Undo/Redo function, that means undo operation for datagrid and chart manipulation (similar to a spreadsheet application).
I'm try to use the richtextbox undo method but when i use it the whole string is been deleted and not the last character
View 2 Repliesso i have 5 buttons and 5 labels.
when i press button 1 a "1" appears on label1.
now if i press button 1 three times, button 2 one time, button 5 four times, but the last press was wrong so i need to undo. i create a new button named undo, what would the code be for taking away like i said, not just for button5, for every button i set out but the undo button?
Has any one experienced this. Never seen it before. Anchoring a Toolstrip Left,Top,Right will resize the strip with out the option of stepping back and undoing it. Forces rolling back the application. Toolstrip is docked at the bottom.
View 2 RepliesI have a form with a FileListBox and 2 Button:... Button1 I would like To Undo my Last Action:...Button2 I would like to redo the Action, I have Been Looking For a code for These Buttons. In FileListBox I am Drilling Down through my files. So that Means if I double click on a file in FileListBox and I have gone to far I want the Undo Button (Button1) to show Previous Files that where shown).
View 6 RepliesI have two tables with referential integrity defined in the sql-database. parent: projectschild: projectlineI do not want projects to be deleted if projectlines exist.The projects are displayed in a datagridview.Here's part of the
Dim dbs As New databasedata.databasedata
Dim connstring As String = dbs.DatabaseConnection
Private dc As New DB2Linq.db2linqDataContext(connstring)
[code].....
i have created a flight booking application for my assignment. to complete it i need to create an undo button..
View 11 RepliesI am working on a Notepad like text editor and I'm trying to put an Undo function in it. When you click the undo menu, I want to simply undo the last action (added char, removed char, paste, delete...). It doesn't have do remember all the past actions, I just want it to undo the last action even if the last one was undo... For now I have a button in a tool strip menu (tsmAnnuler) and my richtextbox (rtbZoneTexte).
View 2 Repliesi am trying to make a really simple program to start with .It is for keeping score in a card game. The functionality of the program is 10 buttons(cards) that when you click them they dissapear and 4 buttons that when you click them they add or remove 1 point to two textboxs and one reset button that when you click it it resets everything.
I have done everything but now i want to make a undo button because when you missclick something it is really annoying you have to reset the whole thing and remember what exactly you had pressed before and this is not what i want. I googled a lot,i read a lot of threads here and in other forums but i mostly found web browsers undo buttons or i didnt understand what to do.
i need this option for a textbox. the undo/redo in two separate buttons and it should be for multiple times not just once.[code]
View 21 RepliesI try to implement undo in drawing program I want to save the bitmap after every drawing and push it to stack then when the user click the button it will change the image to the last bitmap saved in the stack here is my code
Private Sub PictureBox1_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseUp
Xend = e.X
Yend = e.Y
[code]....
how to implement undo/redo in an application? I've searched the web, and most I found don't work properly or just clear the textbox.
View 9 RepliesAfter a rtf. file is loaded in richtextbox....then the user highlights the text with different colors.How can I set both redo and undo button to backward and forward the steps(only the part of higtlighting)?
View 19 RepliesI'm trying to setup undo/redo for changes to a datagridview, but am having a problem with capturing the cell value before it is changed. I am currently using the CellEnter event to capture the original value, which is fine if only one cell is affected. However, if the user selects multiple cells and goes to cut the data (Ctrl-X), CellEnter does not fire for each of the selected sells, only the ones moused over it seems. Is there a better way to capture each cell value before their CellValueChanged event fires?
View 1 RepliesI have a program that colors certain words, but when I do a Ctrl+Z, the textbox undoes the coloring. How do I make it stop undoing the coloring, and just the text that was edited?
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