how can i add a trial with random serials or single serial and once it get registered expire it after 6-12 months....and also if user change its clock time to some day back it remains expire.....
View 1 RepliesI defined a procedure in splash screen to check application trial time, but now it is still working after deleting the procedure from splash screen form. I am not able to understand why and from where it is working.
View 4 RepliesHow do programs like antivirus keep track of time passed for the trial period? Eg I want to make a program that expires and stop working in 30 days One way I thought of is to make use of the system time.
View 6 Repliesbeen racking my brains on this one for a long time, and I've finally decided to ask the question. I had sevaral fields on a vb.net form which need to come together
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I am trying to create what I am sure is a simple program to add hours to convert UTC time. I want to type in a UTC time and have it convert for every state in Australia. [Code] Now that works fine however when the conversion goes past "midnight" it then shows the date and time. I have tried about 50 different things but cannot get it to remove the date when the converted time passes midnight. [Code] The string was not recognized as a valid DateTime. There is an unknown word starting at index 18.
View 8 Repliesstill having problems with adding (decimal time) to any given time and getting the answer in 24 hours (Military time) I have a picture of what I have at the moment
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I have a jpeg file in SQLSERVER need to read and write into BLOB field in Oracle It is a ASP application using ADODB.Connection. I have created a stored proc contains simple insert statement.
When I call stored proc with passing parameters. CreateParameter is restricting length to 2000 bytes when I pass binary data (jpeg contents) more than 2000 bytes.
Code:
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set db1 = Server.CreateObject("ADODB.CONNECTION")
db1.CursorLocation = 3
db1.Open str_Conn
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I'm using Visual Basic 2008 Express and am having problems making an install.It has been suggested that the Express (free edition) only allows you to install only on computers that also have Visual Studio.Do I need the Full version to be able to distribute my application to a variety of computers?
View 2 RepliesI have both Visual Studio 2008 Express Edition and full blown Visual Stuido 2005. I create a simple Windows form that connects to an Access Database on both IDE's. I use the built in controls that are automatically added to the form to SAVE, UPDATE, and DELETE, and TRAVERSE records when you drag and drop a column from the dataset to the form. HOWEVER, I find that on the express edition when I click "Save" the changes are not applied back to the database!?! When I do the project in full blown VS2005, the changes are applied.
View 5 RepliesI have a slightly unusual application that is optimally designed by doing the following. We have an application that references a number of graphic sets for unique artwork utilization. The application is in HD and the graphic sets are a bit large about 20 megs per set. We have found that the optimal design for this particular application is to create a unique .Resources file per set, compile this .Resources file into a .Dll file using Assembly Linker (AL.exe) and reference the .Dll via the application and load the graphics upon demand or selection actually of this unique set within the application.
Question is this as I have been unable to find any data on this aspect.
Is there a limitation on the number and size of .Dlls that a VB .Net application can reference?
Specifically, we will likely have 20-25 unique graphic sets reesulting in 20-25 unique .Dll files of about 20 megs per .Dll. On our deployment boxes for the applications, we have 2 GIGs of RAM so no issue there.
Just curious if anyone knows if I am breathing down the neck of an inherit limitation within VB .Net 2010 by creating the above monster.
I need to truncate to sertain amount of decimals for example : dim x as double;x= 6.98455 textbox1.text = x that mean textbox1.text= 6.98455 I need textbox1.text= 6.99
View 4 RepliesI am writing an app that includes the use of a NumberUpDaown control. I just stumbled onto what seems to be a 12 bit maximum limitation (FFF,4095). I've set the Maximum properties for 16 bits, 65535, but still see a 12 bit limitation. I suspect this is a MS limitation but I've found a description of this control which states it should be good for 16 bits.
View 9 RepliesIs there any kind of limitation on UFL Dlls that are being used on crystal reports? Such as connecting to webservices, using interops, etc?
the UFL dll is working fine, once i started debuging it i noticed that i could not call the webservice, not even create an instance of the SoapClient.I did test the SoapClient from an Exe and it did work fine, just not inside this dll.
[URL]..
I am working on a program that takes a present value, multiplies it by an interest rate (between 1 and 25 percent), multiplies the resultant answer by a specified number of periods and produces a listbox breakdown of value accumulation for each period. I was doing just fine. UNTIL. yeah, until......I don't really know when...... I am trying to specify that the interest rate must be between .01 and .25 (user has to enter it as a decimal on the GUI) or a Message Error box pops up. However, it seems that everywhere I drop my code, it doesn'
vb.net
Private Sub mnuClear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuClear.Click
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I'm working with a form that doesn't want to let me go above 884 for height when I'm working in the editor. I thought I figured this one out before but my memory could definitely be better. I've played around with a bunch of properties without success.opping controls on the form and locating them below the bottom limit doesn't do it. The form will go down as far as necessary to show the new control when you run the application but not when I'm in the editor. I want to be able to work in the editor on a form greater than 884 height
View 2 RepliesIs there a limitation to the size of program that you can create in VB 2010 express? I ask because I am writing a program that asks a user for input, then checks that input to a list of possibilities in case statements.My code is a little over 5000 lines.
View 17 RepliesWe are using VB.NET 2008. This program must run on a 32 bit operating system.
The machine where the program is running at is a 24 core machine which has 16 Gig of RAM.
It has a Win Server 2003, Enterprise Edition SP2, x86 based PC.
When the VB.NET program VM Size reaches about 1.3 Gig, it says "Exception of type 'System.OutOfMemoryException' was thrown."
When I go to Task Manager and check the Processes, "Mem Usage" for this program is about 300 Meg and "VM Size" is 1,341,300.
These are the information from Accessories - System Tools - System
Information:
Total Physical Memory is 16.37 Gb.
Available physical memory is 14.46 Gb.
Total virtual memory is 17.74 Gb.
Available virtual memory is 15.73 Gb.
Can my VB.NET 32 bit program access more than 1.3 Gig of VM in Win 2003 SP2 Enterprise edition ? How can it do that ?
According to [URL] the memory limit on this kind of machine with x86 is 64 Gig.
I am using the print form from power pack is there way to extend the limtation of 81/2 x 11.
View 3 RepliesI wanted to load a lot of items into the listbox and found out its limitation i.e I try to load 1000 lines of long words, it hit to the max. So my questions: Is it possible to bypass the max size limitation or is there other control that can handle better than listbox?
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would i do something like "dim txt_whatever as new textbox" or would i do something else?
View 6 RepliesI have an SQL Server database with a table in it that has a column labeled DATE (datatype =date).The table also has a column labeled TIME (datatype Integer) that contains hours and minutes.I would like to be able to display the time in a datetimepicker also.
Would it make sense (remember I�m new to VB) to have the time as part of the date column?Doesn�t the date/datetime data type include time(7/24/1996 12:00:00 AM)?If so what is the best way to add the TIME column to the DATE column.I know I can go back to our other system (IBM iSeries) and combined the columns and transfer the data over again but that is chore (the transferring) and I want to learn how to do these kind of things without falling back on my IBM skills.It seems I should be able to add time to the DATE column of the table. None of the DATE data transferred over to this table had time with it.
Debug.WriteLine(Me.ServiceRecord.Field(Of Date)("served_date"))
When adding controls to a form at runtime, you can do either of the following:
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I have an app that I have made. The application generates 14million combinations of numbers and inserts them into an Access Database. As you can imagine, this takes AGES (whole night) to compute. Is it possible to make the same method call twice so instead of one combination being generated and inserted, two or more are?
View 5 RepliesI am trying to write a small program so I can log times of the jobs I do throughout the day. I have figured out getting the time values and getting the time differences between travel start and travel finish. The problem is i need to add together two sets of travel times to get a total travel figure for the day. I am struggling with the adding of two time values in textboxes.
View 6 RepliesHow do i go about adding new labels in run time
Dim Label as new Label
something around those terms
I would like the label to be name label1 ... label 2 ... label3... So on
If i change any table definition after using the fields on a form VS stalls and doesnt allow to load the form
View 3 Repliesim decide to develop Vb .net Application With Sql server Express 2008 ,but microsoft says they limit 4 GB Sze for per DB! So im developing my app for Single user Desktop pc , so what i do when the DB reached to the Maximum size? when the db size reached to maximum size , is it Good thing to create new DB and allow my vb.net application to work with both DB s ?
View 4 RepliesThe three labels "Floor" "Typ." "HeadsI can insert once fine but multiple times only the third instance is written to the form.I have 2 textboxes to test that the Label.Name is changed but I can't make the Label.text stand for each label. I am certain this will occur too with the textboxes.I also need to keep track of these boxes for further use with the program.
Public Class Form1
Private Sub CheckBox1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged
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In c# I can initialize a List at creation time like var list = new List<String>() {"string1", "string2"};
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Basically im trying to add 4 new picture boxes everytime a specific text changes. This is a picture developer based off the binary of a number 1 - 10 I can get 4 to change everytime the text changes but i have no idea how to add 4 everytime the text changes. here is the coding i have so far.
Imports System.Drawing
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
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