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 Repliesi have written code for undo and redo operations code for undo operation
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now when i rotate the picture then tries to undo the image then this erorr comes Stack is Empty and program closes.
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).
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 Replieshow 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 RepliesHow do I make a menu item on a menu strip link to another windows form (like a menu item that links to an about page already created in the project). I know that every coder knows how to do this, but i've read most of the instructions in the world for Visual Basic coding, but can't find ANYTHING I know coding fairly well, so I can modify it, but I can't create it my self.
View 4 RepliesI 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 RepliesI 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] .....
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 Repliesi 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 Repliesbasically 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
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After restoring it must display the EXACT same thing as when it was saved as a state.
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.
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.
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I'm just trying to have my "exit" option in my menu strip remind the user to save their settings...If they haven't, the click "no" and save their stuff, and then exit. I can't get the form to close if I hit "yes."
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Sometime when I press the run (F5) Start debugging button it does nothing. Often when I have jsut run it and made a quick correction. If left for a while it will then work! Have tried it with simple and complex projects.
Using W7 x64 - never had this problem with VB 2008 express.
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 RepliesHow to open a link with the right mouse button in the webbrowser
We use the ContextMenu ?
how do i open a menu to exit the application when i right click on notifyicon in the systemtray?
View 2 RepliesI am making a program that is in need of labels changing and showing depending on what the user clicks on a file Dialog.
Everything works fine except for that when I change the labels, it uses the entire file path, and I ONLY want the file name. How would I be able to get JUST the file name?
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This is going to be hard to explain but oh well.I have a form with a menu. When I hit option one, it opens another form (form2) inside that same form (mdiparent). When I hit X on form2, then try to open it again from the original form with a menu thru the menu, It says it cant access a disposed object. Here is the code: Form1:
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my menu strip was there, run my project, it vanished. no undos, it's not backed up.
View 4 RepliesMy program goes like this, i have a log in form where in the admin and guest can access, then the form will navigate to main menu form, i have there menu strip, pls help. how can i disable the subitems in the menu strip if the user is 'guest' for security purposes..
View 1 RepliesI am totally new to VB and I'd like to know, for example, when a user clicks on "Print" in the menu strip on the keyboard should automatically press "Ctrl+P", because the original print dialog, and the WebBorwser print dialog is toootaly different.
View 11 RepliesI have made an app and I want to add it to " open with menu" sub menu which appears when user make right click on any file ie I made photo viewer app and I want to add it to "open with menu" so user when make right click on any photo and go to "open with menu" sub menu will find my app name to chose it to open the photo with it
View 7 RepliesI went through 10 pages between 3 searches and none of the topics were even relevant.
View 2 RepliesI cannot find a way to make a program that I write make a shortcut in the start menu for all users.My final goal is to make an MSI and deploy it in group policy to all users on a computers OU. Is this possible?
View 5 RepliesI have combed these forums and the 'net and can't find an answer to my specific problem. My menu strip disappeared (after deleting a small secondary form within my project). I therefore created a new strip and while recreating the menu items realized that the original menu items are still present, showing in my properties list. I have checked my design file as well and the original menu strip is definitely gone but the original menu items are there. I don't have many items so I would have no problem just deleting the original ones but I can't see them to delete them! I have checked and they are all set to visible. I have also moved everything on my form to see if it is behind anything else.
View 4 Repliesi just want to know how i can make this program run proberly. if you import a file in the listbox and you wanne start it whit the process.start methode it won't work. here is my code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
OpenFileDialog1.ShowDialog()
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My question is how can i make the process.start work properly and will the program start the file?