I want to create a dial which is basically a circle that I can drag around in a circular motion. Ive looked at using the code in an earlier post which allows you to drag items around a screen but I cant figure out how to confine the movement so it only allows the user to drag this circle around in a circular motion. Any coordinate altering I do just looks snappy.
View 6 RepliesIm working on 'Virtual iPod Touch' project and I'm almost done..but one thing annoying me..im using drag 'n' drop to make lock slider..1 got 1 picturebox with lock arrow and 1 black (transparent/invisible) with allowed dropping...and its all ok but I want only I can slide (move mouse) in area for sliding (see a picture, but I think all of you understand).
View 12 RepliesI am trying to code in .Net to select an area and the area will be where ever in the form, that is not restricted to a control and asusually the area appears like a square by dragging using mouse at runtime on the form and if on clicking on a button for ex "Save" i.e., saving the selected area and when the next time the page loads that particular area should be clickable.Right now i have no idea where to start but if some idea is given it will be more helpful to me to develop some code for this functionality. Does any one give a small idea that how can I do this functionality, so that I can proceed developing code?
View 2 RepliesI am using the ModalPopupExtender control to display a modal popup dialog when a button is click. The problem is that dragging the dialog results in an 'scrollleft is null or not an object' error. Here's a video demo and here is ALL the code: If possible, I'd like to resolve this problem w/o resorting to modifying the AjaxToolkit scripts themselves.
[Code]...
I have a form that allows me to drag and drop pictures but I want it to check if the object is in the correct location
*curpic = the current picture that has been selected
If curpic.location.X > bx1.Location.X And curpic.location.Y > bx1.Location.Y Then
If curpic.location.X < bx1.Location.X + bx1.Width And curpic.location.Y < bx1.Location.Y +
[code].....
How would i check if an object is in a certain area inside a form?
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0
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For example lets say 0 = radiobutton1, inside a forms. What would be the best method to check if the radiobutton lies within this region?
I'm working on a Vb.net project. I have a form with a RichTextBox or a simple TextBox control. It contains hundreds of text lines, so the control has to be scrolled.
I want to send to a printer only the lines that are currently seen on the control window.
That is, I want to convert what I see into an Image and then draw that image thru e.Graphics.DrawImage.
As you can see, it could also be the case of a ListBox, a TreeView or any other scrollable control.
How can I grab that rectangle area and then convert it into an Image? The rest I already know how to do it.
Trying to set the viewable area to a smaller screen area and have it cycle through as the person moves using collision detection to move the backgroudn image. Here is the start but its off to a bad start so far.
Public Class Form1
Dim Mapx As Integer = 600
Dim Mapy As Integer = 2000
[code]....
Basically the forum size is set to 600x2000 but the client should only allow you to view 600x600. I want it to add +1 once you "collide with a invisable box I'll add and this will redraw the screen.
I designed a form and managed to fit graphics inside it. Picture box is 465 pixels high. Form1 is 500 pixels high. SnapShot of the screen verifies that the 500 pixel height is the overal height. It includes the upper Bar and lower frame. Is there an instruction to set the From's inner pixel size and not overal?
View 2 RepliesI have just installed Visual Basic 2008 Express.Unfortunately, the built-in (offline) help is very limited. For example, such a basic function as IsNumeric() is not found.Is there a way to expand the help in this Express edition?
View 3 RepliesWe need to put a firewall in between our servers and a couple of clients. To do this we need to limit the number DCOM ports available so that we know what ports to open on the firewall.The question I have is do we need to limit the number of ports on all the machines inside the firewall as well as outside. This would cause an issue as we have lots of machines which would need to be modified.If DCOM has the intelligence to negotiate on port 135 which port is available on both machines which need to communicate, we will only need to modify the 2 machines on the outside of the firewall.
View 2 RepliesI am using a panel control in vb.net (2010) to build a timeline of images. These are very small images (320x180) and I am running into a limit of 240. While the panel does not complain when I add more - it will only scroll to the 240th one.[code]...
I am counting on some of the built-in functionality of the panel in autoscroll mode (being able to bring any of the thumbnails into view), etc. I am certainly not averse to purchasing a third party control for this. I really need to be able to display 1000 or more thumbnails!
I was reading an interesting article here and it made an interesting point about the 'case' statement in vb.net vs the 'switch' statement in C#, which I've pasted below:The following Visual Basic Select Case statement can't be represented in C# with a single switch statement:
Dim Condition As Integer = 55
Select Case Condition
Case 1, 3 To 5, 10, 12, 14, Is > 50
[code]....
I've always found the switch statement in C#, with dropthrough and consequentrequirements for a break in each case, to be a bit unwieldy. Is there any reason they haven't enhanced the switch command to allow these situations? W
EDIT AFTER CLOSE: I'm surprised this was closed, really. With the number of extension methods and helper classes I've found online for other things, I thought an enhanced 'case' would be a good chance. I somewhat hoped a luminary such as Jon Skeet may have commented on the background reasoning, rather than the individuals below who've obviously thought 'religious debate' as soon as more than one language is mentioned.
How to Fix Limited Columns in DataGridView in Visual basic 2010
View 4 RepliesI have created Installation package and installed in Admin login. When i am logging into limited user i cannot write any files which i was created as Admin user. I want to update the files from limited user account which was created from admin user.
View 2 RepliesI know we can easily limit the number of items in a listbox to be listed. But how to limit the items that are suggested. Like for example, when i type "Co" (using AutoComplete feature ) it will automatically suggest me up to 20 - 30 items that has the word "Co" in it. But i want to limit it to 5 items only. The suggested 5 items, are the top 5 of the list.
View 2 RepliesI know we can easily limit the number of items in a listbox to be listed. But i can't figure out how to limit the items that are suggested. Like for example, when i type "Co" (using AutoComplete feature ) it will automatically suggest me up to 20 - 30 items that has the word "Co" in it. But i want to limit it to 5 items only.
View 5 RepliesHow limited time for method InstWebClient.DownloadString(PageAddress)?Sometimes my apps "stop executing" in line where execute InstWebClient.DownloadString method.
IDE: Visual Studio 2010
Language: Visual Basic .Net
Library: .Net Framework 4
Code:
Private Function DownloadPage(ByVal PageAddress As String)
Dim InstWebClient As New WebClient
Dim PageContent As String
[code]....
I am writing an application that I want to give to a select number of customers.
What is the best solution to use so that after the trail period (1 month) the application will no longer work.
I was thinking that if they are interested in purchasing the software I will give them a license key or something, to unlock the application. However, I would like to make this unique to every computer.
I am have a very limited budget as I am working on my own. So is there any free 3rd party products that does this?
I was thinking of writing the date the application was installed in the system registry, and each time the application loads it will check if this date is over one month. However, the user could turn back the date on their computer.
Another, solution I was to have the application run some many times. For example, the user can only run 30 times. Then it will lock.
I need to hash a number (about 22 digits) and the result length must be less than 12 characters. It can be a number or a mix of characters, and must be unique. (The number entered will be unique too). For example, if the number entered is 000000000000000000001, the result should be something like 2s5As5A62s. I looked at the typical, like MD5, SHA-1, etc., but they give high length results.
View 5 RepliesMy program runs under a limited account, and uses impersonation to access admin codeI also have a program in the same folder, that my program runs sometimes when it exitsBoth exe files are in the same folder in the "Program Files" folderIf I try to run the other file, I get a not found error.If I Raise the first program to admin (even though it should already have admin rights due to impersonate) it can run the second file.1. I don't want to raise to admin.2. I'm using the full path and file name to the file.3. That do i need so that dot net can find the file so that it runs.
View 2 Repliesi am creating an Alarm clock application that requires user input to deactivate the alarm. However is there away i can display the inputbox for a limited time only say ( 1min) if no user input is entered after that time then the input box is closed. [Code]
View 2 RepliesI need to know to limit the number of times a radio button can be used. Maybe the number of times the radio button has been used can be stored in an XML file, and when the user wants to reset the counter all they would have to do it delete this file. I really don't know, that's why I'm asking you. But,the program will append a string every time a button is clicked with a radio button selected, I just need to know how to, for instance only allow RadioButton2 to be used in this manner say... 15 times.
View 5 RepliesI have a Webbrowser control on my Windows Form that loads a local page using the DocumentStream property. The page contains an input element of type text. When rendered, users are able to type anything they wish however they are unable to use keys like "Delete" or typical Cut & Paste functions. If it were not for the fact that you can type data and Basckspace to delete the character one at a time. If I load the same page in Internet Explorer, the input box functions correctly.
View 3 RepliesThe goal -- use VB.Net to write a windows forms application that responds to a limited set of voice commands after the user says a keyword, (such as "Wake Up"). I have the following code I am using from another site but I am getting an error I do not understand (nor do several others who posted comments at the same site.)
Imports System
Imports System.Data
Imports System.Deployment
[Code].....
If I had any understanding of how to create a grammer file I MIGHT be able to avoid this error completely, since I am only interested in a few voice commands (maybe 30), not the whole 60,000 word dictionary.
I guess thats what I need to do, Im trying to allow the user to right click on the top of my form, and my custom Context Menu Strip is displayed, not windows context menu strip. I guess somehow i would need to get the size and draw a rectangle on the non client area and see if the user has right clicked in that rectangle? if so how would I get the area of the non client area?
View 7 RepliesI'm currently working on my (business) master's thesis... the topic is capital budgeting tools to manage major investments for a European energy supplier.So far the company has used MS Excel for calculating relevant data to make decisions on whether to invest money in new projects or abandon them. There usually is a host of input data, lots of basic calculations and just two or three outputs (such as Net Present Value, Return on Investment etc) .It is my task to develop a new excel template or decide on buying a completely new software license, if excel proves unable to provide the functionality the company needs.
So far I have only very limited programming knowledge, stretching to Java basics, some HTML code and SQL Databases.However, a colleague hinted at the fact that the VB.net programming language can be easily learned and used to improve excel considerably. Ideally I would need excel to be able to:
- make sure people putting data into our template don't mess with it
- be able to communicate with a database
- have an appealing, structured and neat appearance for ease of usage by people with limited IT abilities
- provide all output, including sensitivity analysis charts, in a structured, printable overview
In previous versions of VB, you could drag or move the form to a convenient spot on the IDE. With 2010 express, the form is in the upper left hand corner and will not move. The toolbox essentially hides it.I have not been able to find a setting that changes this condition.
View 2 RepliesI've got a small problem that is nagging at me right now. I'm implementing a DataGridView to DataGridView drag and drop opperation. Here is the line that starts the Drag and Drop opperation:
dgvSource.DoDragDrop(New DataObject(dgvSource.SelectedRows.GetType.ToString, _
dgvSource.SelectedRows))
I cannot get the dragdrop event to fire when I drag a file from one tabpage to another tab page in the same tabcontrol. I can drag a file from my application and drop into windows explorer and and then drag from windows explorer into my app. That all works fine. And when I drag from one tabpage up to the top of the control, my program uses the tabcontrols dragover event to swap tabs....works fine also. ...Drag drop event fires...no problems
Say I have a list box with files on one tabpage, a list box with files from a different directory on another tabpage, I want to be able to drag the file over and drop it into the other listbox.I have done lots of testing on the variables in the dragdrop handlers to see if they are recognizing the switch in controls and they are. But the dragdrop event will not fire.