I'd like to implement some very simple validation into a program I'm writing, but I have no experience in this area, so I'm not sure how to implement it.I'd like one to have one make sure that text entered in to a text box has only regular characters (A-Z, a-z), but I'm not sure how to go about it!
View 3 RepliesI'm trying to implement printing functionality into a simple program for my company. It's not necessary, but it would be a nice finishing touch for everyone. And really, in practice, my printing feature works. My problem is that each line is printed on a separate page of paper and I can't find a way to just like, print a page.
It doesn't have to be fancy. I know that I won't need word wrap, nor will anyone ever print more than one page. Here's my ginked & modified code thus far:
Private Sub PrintDocument1_PrintPage(ByVal sender As System.Object, ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage
Dim linesPerPage As Single = 0
[Code].....
I've built a UserRepository interface to communicate with my LINQ to SQL Data layer, but I'm trying to figure out how to implement validation.
Here is what my AddUser subroutine looks like
Public Sub AddUser(ByVal about As String, ByVal birthdate As DateTime, ByVal openid As String, ByVal regionid As Integer, ByVal website As String) Implements IUserRepository.AddUser
[Code].....
Possible Duplicate:How can I handle a Validation.Error in my ViewModel instead of my View's code behind?The usual examples of how to use Data-Validation in WPF usually only involves defining an error template for the control and displaying the error message in the control tooltip. What I want to do is to create a collection of all ValidationErrors, display it in an ItemsControl to the user and focus the invalid control when the user clicks on the associated (error) item in the ItemsControl.
View 2 RepliesHow to write a simple validation expression that will accept any whole number greater than zero but less than 1,000.
View 1 RepliesWhat is the easiest way to implement a simple text editor w/in a RichTextBox? For example, one similar to what I'm using here to enter this text (i.e., having a bold, italic, underline, redo/undo, bullet, number, and hyperlink buttons).
View 11 RepliesYou have failed to give me "Staring Point".If you don't give me "Staring Point" the program will terminate.I'd like to terminate the entire program based on dialogresult. Do I just kill my main form or is there a line I can put in there to exit program?
View 4 RepliesI am trying to implement a timer in my program and i am unable to do so till now.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Static intCount As Integer
intCount = 10
While intCount <> 0
Dim fileReader As String
[Code] .....
How do I implement a timer that will close the IE after every 5 seconds till the count runs out?
I'm trying to implement a timer into my program, because I want to take a capture from a webcamdevice every x seconds.I've wandered around google all day and tried to implement all kind of timer classes (with system.threading because I can't use system.windows.forms.timer) but I won't figure it out!
View 14 RepliesI have an existing program, and it uses DLL files to do things I wish to implement a DLL in VB.NET the DLL's are not COM, they are standard call the method or function type DLL's
How would I implement the following in a VB.NET DLL extern "C" void __Export_TYPE HelloWorld(char *path)
I have the following function that loops through a directory and checks for a specified folder and file[code]...
View 1 RepliesI use VB.NET 2005 i need to implemente IMessageFilter for MSWord object.
View 8 RepliesI have an interface program written in VB .Net (VS2008xxx.dll). Is it possible to implement the Interface in a VB6 program (VB6xxx.exe)?
View 8 RepliesI'm looking to implement a sort function in my program however I am new to VB and don't know how to. Basically I have 6 objects in my program racing across the screen and what I would like is a leaderboard showing the current top 3.
View 13 RepliesI am trying to implement a service object class for the POS for .NET library using VB9. Specifically, the BillDispenser class. I define my class and inherit from Microsoft.PointOfService.BillDispenser. As normal, it creates stubs for all the MustOverride (abstract) properties and methods that I need to override (I love that), EXCEPT for the events. Apparently thare two events defined as abstract (MustOverride) in the POSCommon base class, but VB doesn't generate stubs for them.[code]...
View 8 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]....
I am executing this validation summary program in Visual web developer 2008 express edition, found the validation summary property is not visible in output.
<div><asp:ValidationSummary ID="sum1" runat ="server" ShowMessageBox="false" HeaderText="You details cannot be processed due to following errors:" DisplayMode="BulletList" ShowSummary ="true" Font-Names ="arial" Font-Size ="12"></asp:ValidationSummary>
<asp:CompareValidator ID="cmp1" runat ="server" ControlToValidate ="txtname" Display="Dynamic" Operator="DataTypeCheck"
[code]....
I want to implement copy, cut and paste in my drawing program (copy part of an image that is selected)I don't know how to start?
View 10 RepliesI want to implement drag and drop functionality in my program, but it isn't working. Here's the
vb.net
'I removed the code because it wasn't needed anymore ;)
I've set the AllowDrop property to true, and when I drag a file onto a program, the cursor changes to Unavailable, and I can't drop my file.
I want to implement the TCP KeepAlive in order to check dropped connections by running a timer.
In my case, I have a TCP Client (using socket class) and a third party server (i have no control on it).
How can i use the TCP KeepAlive on my TCP Client in order to check the connection state?[code]...
I want to write a program that can control port communication in a PC by blocking certain port based on the admins request and also monitor incoming and outgoing network traffic. Can i achieve this using vb.net winsock?
View 1 RepliesI'm a newbie in visual basic. We have a project in our school in implementing queue using circular array.
View 5 RepliesI have a dataset along with code for validation. When I use a datagridview and setting the EditMode to OnEnter I get the red exclamations telling me that I have an error when this is needed. This works all good. when I click the save button on the BindingNavigator, the application saves the record even when this validation is showing. How do I filter up this validation code through a datagridview and stop the program saving the data? If you need the code for more information, I will add this to the forum.
View 2 RepliesIm trying to create a program with a simple gui that enables me to search for and select parent folders containing child folders containing multiple files and then validate those files based off of constants i set per child folder and file.
Example
User selects Parent FolderX
Parent FolderX > (ChildFolder1 ( Constant for ChildFolder1 says open file 4 ) > File 4
Compare multiple strings of text in a specific order based off of file name to constants i have set for that named file Then continue to ChildFolder2 ( Constant for ChildFolder2 says open file 16 ) > File 16 Compare multiple strings of text in a specific order based off of file name to constants i have set for that named file If there is any constants not read in one of the files after all have been checked, return msgbox with a notification and write .txt log with child folder and file names to specified directory?
i want to make a simple program that can be used of add,delete,edit,save,, thats all, so that i will understand the basic of programing.so that in that program i will developed it and also connection of vb2005 to sql server 2005.. i am amateur here using this vb2005 and sql server 2005.
View 4 RepliesI want to distribute a fairly simple program developed on Visual Studio 2008. I have tried to use the publish features in the IDE. It creates a folder with various information and stores it on my fileserver.When I try to install the program on another computer I get a lengthy message about the need to install Powerpack 9. 0.0.0 So I go back to my dev computer and edit the publish information. On prerequisites I do not find Powerpack 9 but Powerpack 3. I put that in and redo the publishing. The installation now install that package but then it says it requires powerpack 9.0.0.0 and ends?
View 5 RepliesI'm just starting to learn vb.. trying to figure out why this is not working.
Public Class Form1
Dim final As Double
Dim grade1 As Double
Dim grade2 As Double
[code].....
i am had lots of trouble in finishing a simple program.well my program had one listbox one command button the list box is loaded with proxies.when i input the query url in textbox it and pressed command button it will query search engines and retain rank.it also click our url to verify drilldown it
1.load the proxies
2.input the URL
3.click command button
4.perform querying and clicking task on search engines
my pc was crashed recently so i am unable to upload the program here.can someone kindly me(newbie)to finish this simple task?
I said in a thread this week that I would set out to construct a program using the WMP component and this time, unlike in my last one, it is set up to allow any folder to be chosen. It's safe, even if the user chooses a folder with no .mp3 files in it, but it's goal is to look through all folders/subfolders, find the .mp3 files, get the path and the meta information about it, then show it in a listview.
The user has a few options such as playing the first song when a list is loaded, setting it to shuffle, etc., and all settings are saved automatically. Also, when they choose a folder to use to get their music, the next time around it remembers this also (although this latter one is done by saving the path to a text file so that you can, optionally, edit that before you send it out -- without having to change the code to do it).
I have it looking at events so that no matter what they change (click for the next song, change the volume, change one of the checkboxes, etc.), it will re-focus the listview so that the song presently playing is highlighted.[code]...
I am trying to build a simple app that will start another program.The command line that works in a dos batch file is c:program filespixellWall Controlwallctl.exe -layout=c:1.lay with my code below this works, c:program filespixellWall Controlwallctl.exe but the switch info above doesnt get passed, I get a run time error.
Public Class Form1
Dim layout1 As String
Dim layout2 As String
[code]....