Setup Undo / Redo For Changes To A Datagridview
Aug 18, 2009
I'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 Replies
ADVERTISEMENT
May 5, 2008
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.
View 2 Replies
Jul 29, 2009
I 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).
View 3 Replies
Apr 20, 2009
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 Replies
Apr 5, 2009
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 Replies
Mar 3, 2010
After 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 Replies
Sep 23, 2010
I am trying to build a simple syntax highlighter editor along with undo/redo feature. I have the code to syntax highlight the code on "TextChange" event but the undo/redo feature does not work.Any work arounds on implementing syntax highlighting with undo/redo?
View 2 Replies
May 14, 2009
I have a problem with my code. After I click undo I can't draw on the image and I don't know why
This is my code
Imports System.Drawing.Graphics
Imports System.Drawing.Bitmap
Imports System.Drawing
Public Class FrmChild
[Code] .....
View 4 Replies
Apr 30, 2012
I was wondering if there is a way to modify the limit on the number of undo/redo actions a RichTextBox is capable of performing. It seems as though the limit is around 100, and I really need to increase this because of the demands of my application. I have text formatting (Bold, Underline, etc.) in my application, and since you can change the font of the text, I need to loop through the characters in the SelectedText one-by-one and apply the correct formatting to them in order to prevent any errors from appearing. Every time a single character is formatted, it counts as an action. As you can imagine, this quickly adds up and therefore makes my undo/redo features not as useful as I'd hope with the 100-action limit. Does anyone have any suggestions for me?
View 3 Replies
Apr 28, 2009
i am developing one eform designer project..the main object of this project is there a form in this controls are drag and drop.moving and deleting and editing the properties ..it's like a our .net designer how we drag and drop the controls ..so in my project i need to implement undo/Redo functionality..please give me the basic idea of this..(Please think like a our .net Designer (UNDO/REDO))
View 2 Replies
Apr 4, 2011
basically add and remove text and selection information from a stack. Result: When using Undo/Redo the selection got messed up, the text moved, sometimes causing lag of epic proportions. I need a way of having complete and smooth undo/redo class for storing all information I would possible need.How to know whether or not to add an undo stack is easy, I just checked if the user clicked in the text or moved using the arrow keys. As soon a previous marking was given for "next text change needs to be backed up", it was backed up. At that point I stored the RTF and selection start/length. What do I have to store of a RichTextbox control to be able to restore it to a previous state, and how can I reset it back to a previous state? See it as having a "RichTextBoxState" class:
Public Class RichTextBoxState
Sub New(ByVal RTB As RichTextBox)
Me.text = RTB.RTF
Me.selectionstart = RTB.SelectionStart
[code]....
After restoring it must display the EXACT same thing as when it was saved as a state.
View 8 Replies
Mar 30, 2012
Just finished a database for stock management system in local terms and language. All according to their request and agreement. Now they need me to add undo/redo functionality to the application and I just dont know where to start. I am looking first for a general tip on where to begin:
I have one form, for e.g., that manages their stores. Then another for catagories...now they need the undo for all this things and am not sure if it is even possible cos datas are related.
View 4 Replies
Jun 15, 2011
After getting the code below from here, I would like to learn how I can easily copy/paste and undo/redo actions. The code below allows a person to "draw" on the image.
[Code]...
View 7 Replies
Mar 30, 2009
i want to implement undo/redo function in icon editor, im try to use arraylist or Stack to hold current icon or picturebox image when mouse up and left mouse is not press. i dont know exact place to put the Stack for push.
View 2 Replies
Aug 6, 2009
I have created a Form, added a MenuStrip to it and inserted the standard Items. My question is that I know some of the options won't work like 'Save' and 'Save As' but how do you make ones like 'Open' 'Exit' 'Undo' and Redo' work when start debugging?
View 9 Replies
Sep 12, 2011
I am adding an undo feature for a DataGridView using the Command Design Pattern. To create the EditCommand, I have to know what was the previous value of the cell, so I can re-enter it in case the user hits undo. I'm doing it using the CellBeginEdit and CellEndEdit events. With the CellBeginEdit, I save the value of the cell in a private variable and at the CellEndEdit function, I use the saved value to create the EditCommand. It's working fine, but I wonder if there is a more saner way to do it. Maybe a event that holds together the previous and the new cell value. Bonus points if I could actually prevent the DataGridView from updating itself and let the EditCommand do it.
View 1 Replies
Dec 29, 2011
I Fill a DataTable using a SQLDataAdapter then use a BindingSource as my DataGridViews DataSource. My DataGridView contains a ComboBoxColumn named "Status". There are two ways to update the Status column. One, the user can change the value by clicking a cell in the column then the combobox appears and they make their selection. Second, the user can click a button on the form and the Status for all the visible rows are changed to "Exported". I use a stored procedure as my adapters Update command.
[Code]...
View 5 Replies
Nov 19, 2011
If my if is not correct, and it goes in the 'then', how is it possible to redo my whole sub? I want to automate a whole sub.
View 1 Replies
Feb 22, 2012
I have a master/detail datagridview setup. I am using a Dataset to manage select, update, deletes. I have various text columns and combobox columns in the master datagridview. I use this code to save all changes to both tables:
Private Sub ProductsBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ProductsBindingNavigatorSaveItem.Click
Dim saved As Boolean = False
Dim TestForChanges As DataTable
Me.Validate()
Me.Result_HeaderBindingSource.EndEdit()
[Code] ......
I now need to tap into the tableadapter.updateall or change the way I update so I can use the autocomplete. Also I don't have a key/value pair in the autocomplete like I would in a combobox. Any better way to do this task.
View 3 Replies
Feb 11, 2009
I am attempting to set up a datagridview that is dynamic based on user input. The user input is a start and end date. The start date defines the first column the next column is the next date... until the end date (x-axis). The y-axis is technicians and the fields will show the assignment for the technician on that date.
All the advise I am seeing on datagridviews is to create a property methods to provide the information for each column. for example:
Dim 12-Oct-2009 as string
Dim 13-Oct-2009 as string
[Code]...
How do I create a object data source that allows me to populate the data grid? I want the column headers to be included as a string in row 0 of the multidimensional array. The amount of columns will be dynamic with a minimum of 1 and maximum viewing of 100 days based on what dates are selected in the start date and end date fields.The input dates will be used to generate a query to a database that will populate the multidimensional array.One solution I see is pick a start date and have a set number of dates and code for set number of columns (100) in a row and then set the names of the columns dynamically...ahhhh code repetition!
I am not sure how else to do this but looking for a more suttle way.I am using this to create a simple scheduling tool to see resource schedules by date. There is an unmoveable end date so initially I will need to look ahead 100 days but as the end date gets closer, I will have fewer and fewer dates. So eventually the end date will be that start date.
View 3 Replies
Jun 12, 2012
I have create setup for my project, when i tried to open the form which contain datagridview on it. It give me this error. Here is the attachment screen shot of the error.How to solve this error.
View 12 Replies
Jun 7, 2012
how might I redo this method with Activator.CreateInstance
Public Overridable Function setCreditType() As CreditType
Select Case creditTypeId
Case Is = 0
Return New NewCredit(Me)
Case Is = 1
[Code]...
View 1 Replies
May 10, 2012
I want to create a real setup project for my application so when someone want to download it he can run only setup, not default setup that provide me VB . How can I do that?
View 4 Replies
Apr 2, 2009
add serial number requirement to Setup & deployment > setup wizard for VB.net application
View 16 Replies
Jan 15, 2010
How to Undo changes in a form?
View 7 Replies
Nov 8, 2010
I 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 Replies
Jun 8, 2011
I am using VS 2008 VB and setup my application software in Win XP without any issue. But after installed in Win 7, it doesn't work well (it show one file not found, but I saw the file in the right folder). Could it be the incompatibility of VS 2008 and Win 7? If I upgrade to VS 2010, will the issue be fixed?
View 10 Replies
Mar 12, 2012
How does the "Undo" operation work? Not looking for a specific code, I am just curious to how it works.
View 3 Replies
Jun 22, 2010
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
View 1 Replies
Jan 21, 2010
I want to put undo in a small program
View 10 Replies
