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Where would you store the values?
Usual user settings locations would be easy enough to find eg: isolated storage.
A key in the registry? You could create an algorithm for generating a key in the registry and just store the date with no other identifying informaiton. And then just leave the key there until a full version was installed.
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Leah_Garrett wrote: Where would you store the values?
In the program. Every time it starts up, it checks to see if it has been 30 days since it's been installed.
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MatrixCoder wrote: In the program.
You mean as part of the binary? Have you got code samples or references?
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Hi,
I have already tries this but there is one loose point.
If a user not changed his system date and runs our software at the same date in which date it installed, No way to increase run days.
Think about it and give me any more idea about this.
Thanks for your reply.
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Dear Friends,
I have faced Big Problem in my Project Boecoz of Performance Issue,
in my application some forms have lot of controls that kind of forms takes too much time to open and process time.
"SO HOW TO IMPROVE THE PERFORMANCE IM MY APPLICATION"
Thanks and Regards
Ravi.G
-- modified at 9:46 Tuesday 5th December, 2006
Ravikumar
[Coimbatore]
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I think you've answered your own question there - use fewer controls on a form & create more forms.
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Yes it s true, bocoz i have used lot of tab pages, but thats is client requirements so i want some other solution,
Thanks
Ravi.G
Ravikumar
[Coimbatore]
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Ravi kumar G wrote: but thats is client requirements
Putting hundreds of controls on a form takes forever to create and initialize them all. The TabControl is one of the most grossly overused and abused controls in the ToolBox.
This is where you work WITH the client to work out these issues. Either they put up with the pathetic performance of creating all these controls or they work with you to reorganize the form so it's a balance between what they "think" they wanted and what is acceptable perfromance.
The TabControl is great for bloating the code in a form as to make it nearly totally unsupportable when it breaks or you have to add more stuff to the form.
Save you and your customer the pain later on and solve these problems now by limiting your use of the TabControl.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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make a new form of your instance at the strting class and change its visible to false.
do this for all forms and whenever u want to view each form ,use form.show method and for closing wrtie form.hide and make a sub to update context of controls when it is going to be shown.
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Thanks, I think this will be helpful for me can u pls give some exmaple........
Ravikumar
[Coimbatore]
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Hi,
how i can make a software a trail use for 30 days or 15 days etc.
if any one have an idea please reply me.
Thanks,
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When the application starts check the date of when the C:\Program Files\Your Application\ was created or better yet use Registry to store an installation date that is encrypted. Only your application will be able to de-crypt the install date.
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Hello,
SQL Server 2005, VS 2005
I have a checked list box. The user will select a combination of staff members from the checked list box. This will display these staff members and their tasks that they have to do. Also I have a additional 4 check boxes on the form, where the user can select the prority to be shown. i.e from the checked list box, check staff members 1, 5, 8, 12. and display the prority as high. There 4 prority check boxes (low, normal, urgent, and very urgent)
All are dislayed in a datagrid on the form.
Currently there a 15 staff member that will be in the checked list box, but this could grow as more stafff members are added.
My problem is Writing a select query for each of the possible combinations of staff members and the prority.
I could end up writing many many select queries for each combination.
Is there a simple way to write a select query for this type of situation?
Many thanks in advance,
Steve
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You could read through the selection in the list box and build a comma delimtered string to use as a part of your query.
Something like this, where details is a list of fields you want to get back:
SELECT details
FROM StaffTable
WHERE StaffID IN (1, 5, 8, 12)
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Thanks for your help,
That is the way i am trying to do it.
Steve
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Hello,
I’ve developed ATL Control using VC++ 2003 to use it as GUI component for different programming environments. It works fine with .NET and Borland builder, but when I try to use it with VB6 or VC++6 I got ‘Permission denied’ error. It happened when I call ::GetClientRect(m_hWnd, &ClientRect) function, where m_hWnd is a private member of this control (handle of control’s window). What’s wrong? How to fix it?
Regards,
Leonid
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hi
when i try to use Reporting Services to render a report from aspx page
(web app) (vb.net) by using ReportingServices.dll referennces
i get this erorr :
==================
System.Web.Services.Protocols.SoapException: The permissions granted to user 'NT AUTHORITY\NETWORK SERVICE' are insufficient for performing this operation. ---> Microsoft.ReportingServices.Diagnostics.Utilities.RSException .
note:
=====
i have windows 2003 - sql 2000 sp3 - Reporting Services sp2
i am login as administrator
pls tell me what i can do ?
thank you all
nsr
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I’ve been searching all over the web for the answer to this question I finally find it... and I have to pay to get it. 
to quote the article that describes my problem exactly (he does it well)
If you open an Explorer window and make a change via Tools -> Folder Options -> View, Explorer updates all currently opened windows with these changes.<br />
<br />
I'm looking for the mechanism that will do the same if I make a change to the same registry key.<br />
<br />
The key is located at "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced"<br />
<br />
An example would be setting HideFileExt to 0 and have explorer update the listview and show file extensions.<br />
<br />
Simply doing a refresh on the Window doesn't work as Explorer doesn't re-read the settings automatically.<br />
<br />
I have tried more than a few methods trying to get explorer to update itself without luck.<br />
<br />
I've sent:<br />
<br />
SendMessage(hWnd, LVM_UPDATE, 0, 0)<br />
SendMessage(hWnd, WM_SETTINGCHANGE, 0, 0)<br />
SendMessage(hWnd, WM_SETTINGCHANGE, SPI_SETNONCLIENTMETRICS, 0)<br />
<br />
To individual windows and childs, and have tried HWND_BROADCAST as well.<br />
Have also tried SendMessageTimeout and PostMessage.<br />
<br />
SHChangeNotify SHCNE_ALLEVENTS, SHCNF_IDLIST, 0, 0<br />
<br />
And sending commands that try to force an update based on Icon changes do not work either.<br />
<br />
At best, I can get Explorer to eventually read the changes, but the timing is random.<br />
does anyone know the answer to this question? id kinda like to figure it out without spending my cash 
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So where did you find the answer to this?
Dave Kreskowiak
Microsoft MVP - Visual Basic
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I think following thing will work for you
SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL);
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Hi,
I want to trap keypress event in DataGrid Cell Column. I want to trap the event when ENTER key or TAB key is pressed.
Thanks in Advance
-Madhu
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Hi.
Did anyone have experience with DB2 databse. I need to connect to DB2 from my ASP.NET (VB) application and I'm not sure how to do that. I have dvelopment machine (I work on it) and DB2 is installed on another machine.
Thanks,
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Thanks. I've seen this one. The problem I have is that the version we have is not V.8 it's V.7 and I don't have tools to connect to DB2. Any idea?
Thank you,
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When I connect to a DB2 (in Visual Studio 7 or 8) I add a reference to IBM DB2 UDB for iSeries .Net Provider and then declare objects like this:
Dim cmd As New IBM.Data.DB2.iSeries.iDB2Command<br />
Dim conn As New IBM.Data.DB2.iSeries.iDB2Connection<br />
Dim da As New IBM.Data.DB2.iSeries.iDB2DataAdapter
I'm not sure where you can get this or if it is free and available for download, but maybe that will help in your search.
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