I just had an absolute nightmare scenario. Somehow while working in VS 2008, the wrong sequence of keystokes occured and I deleted all the controls on my userfom. The form is extensive. I could not undo the deletion and restore my form. So I decided to copy all the code from behind the form to a text file. I then deleted the project and then went to one of my latest back-up copies and dropped it inot my project folder for VS 2008. I opened this back-up file in VS 2008 and simply pasted the entire code from the text file (5,000 lines) into the form. The backup file has the same name as the original.
When I go to run the code, the form loads properly, but none of my control events seem to be firing.There are not any errors showing up in the Error Window. I then started getting an error prompt saying "Project XYZ cannot be modified at this time." Anyways after several attempts, I decided that instead of copying the entire piece of code from my text file, I would only copy pieces that I recall as being updated. Now everything loads properly and the routine runs. But I know have yet another control event not firing. The control exists, the event is there but no firing.Given that I was prudent enough to make back-ups AND I have the actual code from the crashed file how in ____ do I copy this code back into my form and have it work?
from yesterday night i have done a part of my practical and i saved to my pendrive... the folder name as <Chapter 3>and today i went to college computer lab continue to finish another part and i also saved to my pendrive, since i open the .sln file from pendrive.and i go rename those folder names and .sln name and others possible to rename as <Practical 3>when i back home want continue to do, the folder is still exist but inside folder's files are lost.
For a while I was having trouble finding where my projects were being saved on the hard disc. Projects were being stored in at least two places, well I sorted that out and finally copied everything to the one location.Today I went to revisit an old project but it looks like I wast careful enough before I deleted all the duplicate projects, and now I find that two I want to look at are long gone.folders for these projects which include these files: -
I had a hard drive crash and lost all my source code for my poker clock program, but still have the program. Are there any programs I can use to reverse engineer my program so I can get the code back?
I have created an Excel AddIn that has a custom ribbon with some custom buttons...I'm using Excel 2010. One of the buttons is to save the the workbook by utilizing the users input as the file name. This workbook is to be saved as a template in a specified folder. The code also checks to see if the file already exists, and prompts the user to overwrite if it does already exist.The code I have seems to be working just fine. The problem is...when I try to open the newly saved workbook, it won't open.Here is the entire code for the button click event:
Dim Warning As DialogResult m userFileName As String Warning = MsgBox("Warning Message", vbOKCancel + vbCritical, "Warning Title")
One is a program where you can select a product and select how many of them you want. Then the total price wil be displayedin a label. And the list of selected products will be saved in a .txt file.
The second program is an Edit program. The user can edit his selected products. Here he can change the total of a product.So if he had selected 1, he can change it to three or something. When the user clicks the button Save. The changes will besaved in the same .txt file and the total price will also be changed and displayed in program one.
Program one is compleet.Program two has problems and here i need your help:- the user can't make a change in the numbers, seems that the textbox is read-only or something. How to solve?- Then when i click save, the changed must be saved in the .txt ( i can't test this yet because no changes can't be made)- the total new price must be showed in program 1 (i think i programmed this well, but can you take a look)
How can I add controls to a form in code and set the properties of the controls using the With statement?Also I would like to know how to add a container control and then add a control to that container.
I have two data tables. the second related to the first. Using a datagridview for the first table I am able to enter and save data ok. if I run the code twice in a row the data is still there. When I edit the data in the related table in it's own datagirdview the data is there and displays correctly, but on running the code a second time the related data is lost. In both cellendedit events I am using
I am creating a simple button based rpg and was wondering if someone could help me with 3 things how to hold information within the game until the player save's the game, Saving the game, and Loading the game.I want the saved games to be saved onto a encryted file like .db or .dat file..
"add controls at runtime" how to add code to the controls. kinda useless with no code, ehh? all results only told me how to add the control, that's it. well, this result is different. i will teach you firstly how to add controls at runtime, then how to apply code to them at runtime
Firstly, add the controls:
[CODE]..............
Now run it. do you have a button on the form? if yes, excellent. if not, you made a mistake. try again now how to add code? you may have noticed that when you double click on any control, it says private sub button1_click(blah, blah, blah) Handles button1.click where it says handles button1.click is what determines when the code executes under what event for what control (in this case the click event for the button1). this won't work when adding code at runtime. did you notice in the above example i added a with event, and addHandler? this is what creates the handler (same as Handles button1.click)
Now we add the code for the runtime control
[CODE].........
Above, the addressOf button1_click tells the program to execute the sub button1_click when the button is clicked on (as determined by .click) but i know what you're thinking! your thinking "why would we even BOTHER doing this at runtime? isn't it easier to do it at design-time in the first place?" yes it is, providing your not writing a plugin. plugins are code based, not GUI (also reffered to as WYSIWYG). to update existing forms using plugins, you need to use this method.
I have the following code which is used by 7 comboboxes, the only difference is the combobox1 to 7 and the DataGridView5 to 11. In VB6 I would have used arrays, is there any way to write the code once or do I have 7 ComboBox1_SelectedIndexChanged subs.
I am trying to create and remove a series of controls programatically. The user will have a numeric updown to pick a number. The program will then create a bunch of duplicate controls based on whatever number they pick on the fly.
Public Class Form1 Private Sub NumericUpDown1_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles numberDebts.ValueChanged[code].....
The creation part works just fine.As the number is toggled upward a new label is created.However whenever I remove labels it acts very strangely.The first time I bring it down it works just fine. Then the next 3 do nothing but the 4th removes another line.I can also toggle back and forth and it will eventually remove the label. So for example.
Starts with 1 selected - 1 label visible (1) Change to 2 - 2 labels visible (1-2) Change to 3 - 3 labels visible (1-3)[code]....
If I toggle back and forth between 2 and 3 eventually label 4 will go away.I want only 1- my numeric up down value to be displayed and have everything else after that removed.
I have been searching and having no luck...So anyway, what I need is a way to copy tab1's controls or items (like textboxes) and then have them pasted into a new tab.
This would be done through a "New Tab" button. When that button is pressed, a new tab will open up and it should have all the same items that tab1 has.
The editor basically uses a bunch of labels and pictureboxes (for now) and then an image is created from the panel which contains all of the controls.It sounds quite confusing, but basically i'm trying to create something like visual studio itself, which will allow "controls" to be added onto a panel, and then everything can be exported as an image when the user chooses to.I've worked out all the code to move controls and exporting the image, just having trouble trying to work out how to add an event for newly created controls as you can only handle a control, and not a variable.
I have a checkbox and a panel inside of a FormView control, and I need to access them from the code behind in order to use the checkbox to determine whether or not the panel is visible. This is the code that I originally used, but since I put the controls inside of the FormView, it no longer works.
Protected Sub checkGenEd_CheckedChanged(ByVal sender As Object, _ ByVal e As System.EventArgs) If checkGenEd.Checked = True Then
[Code]....
There aren't any errors anymore, but nothing happens when I click the checkbox. I think there needs to be some kind of event to trigger it but I don't know how you can put an event handler inside of an event handler.
What I am trying to do is create a form in code that runs while the BackGround worker is running.I created a form the normal way with a label and progress bar but I want to update the label with what is going on in the BackGround Worker.Doing it the standard way isn't updating the label on the form.So my next idea is to create a form in code which I have done, but now I can't remember how to add controls to that form at runtime.Here is the code I have so far.[code]So from here I have tried the CreateControl() and the Controls.Add() and neither one is working for me.
Possible Duplicate: Best Free Controls for .NET For many usages, for many developers, (including me) it's required to use free (Win or web) components in their projects. Sometimes they doesn't work correctly.
I'm wondering about a feature in Visual Studio. Personally it bugs me when I open a solution someone else has been working on and it's full of Controls with Ids like "label27" "textbox3" etc. One of the first things I do is either rename them or remove them if they are never referenced in code behind (as is usually the case with the labels).
I have started with a small project in VB2008 Express which grew to a complex application. I have deployed the application recently discovering it is rather small, and the major issue is that code-generated controls (checkboxes, comboboxes, textboxes) are not displayed as during development. I have declared the code-generated controls in the declaration region, and there are about 250 controls. According to user selection some of the controls are added to a container panel. Now, I am concern that because I declare those as public (static?) variables, it uses much memory and causes the problem in the compiled application. Is that correct that static declared and code-generated controls uses much memory? How to avoid it ? I need the controls as public variables. Is it better to add all 250 controls on the form in designer mode, and use the property Visible (control.visible=True)?
I am trying to create a way to use my arrow keys to move around some text boxes. The form has 12 textboxes moving from left to right with 4 in each row. Tab Index will be like this.
0 1 2 3 4 5 6 7 8 9 10 11
In the code I have figured out how to find the current tab index but I am having trouble moving to the next control based on which arrow key is pressed. Here is the code I have so far.
Protected Overrides Function ProcessCmdKey(ByRef msg As System.Windows.Forms.Message, ByVal keyData As System.Windows.Forms.Keys) As Boolean 'This variable holds the current tab index for the control that has focus.
[Code]....
I commented the area where I haven't been able to figure out how to code it. I have spent a few days working this out and have spent the past 6 hours working on this part.
I am coding a dynamic asp.net page in which i want to have text boxes in a page and the number of text boxes depend on a previous user input. Since the number of text boxes are decided dynamically, I am going with designing them in code rather than in the aspx page.Now I need these fields to be mandatory and so want to indicate a RED asterisk symbol in front of the label corresponding to each text box.I am really new to working in .net and I couldn't figure out how to set a specific color to a labelcontrol.[code]....
Using Reflection is it possible to see some of the code behind the contruction of some of the standard Vb.Net controls?I'm particularly curious, at the moment about the SplitContainer a.k.a. System.Windows.Forms.SplitContainer.I am just curious as I would like to see the code used to construct some of the default controls, or would this have been done in C# , C++ or even assembly language?
I have a form containing 135 NumericUpDown controls (15 rows x 9 colums).I also have a Button control (btnCalc) that performs calculations per each row.btnCalc.enable=False for the most part and I only want it to be enabled if the value of any of the NumericUpDown controls change - i.e., to prompt user to recalculate.what is the best way to program this w/out having to code a "ValueChanged event" for each of the 135 controls?
