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I want to input value on datagrid, but I don't know how to check the primary key (when it's empty or duplicate). If have error message I want to display my error message not error of window. please...
Thanks a lot.
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If a DataTable is bound to your grid you could use its DataRowChanging/Changed events to validate data.
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Thanks for your help. I used design mode to created oledbadapter, oledbconnection, dataset and combine with a table on SQL Server 2000. When I press Tab key to enter a new row on datagridview but I can't check a old row. Could you help me and give me code demo. Thanks.
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How to take a user-defind printout by a single click of the button without using the control: "Print Preview DialogBox"?
Friends, I made one invoice bill format so I want generate a print, directly send to printer which is default? suggest me?
wish me as All The BEST.
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Just create a new PrintDocument, set the page/printer settings and call Print(). You surely have to handle the PrintPage event (the same as in the preview dialog).
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hi everybody
I have a window application in vb.net
i want that on click of a button on a form its labels and textboxes text change to some other language such as germany,Russian etc.
i know it can be done but i dont know how, if anybody know then,please help me
Thanks
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Search this site's articles for localization/globalization.
--------------------------------------------------------
My development blog
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!
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Hi All,
vb.net/C# applications are opened and compiled (build) properly while executing it will error message like 'The application failed to initialize properly(0x0000005). Click on ok to terminate the application'
And second problem When i open web application Visuval Studio closed automatically. I checked IIS it working fine(http://localhost).My web application also working fine in IE. Here I checked aspnet_state in that it will give error message like 'exiting with error code 0x80070427'. In the event log
FileName w32time.dll
File Version 5.1.2600.2180
Source W32time
Type Error
Please help me how to resolve those problems
Thanks & Regards
Johnson
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Hi friends,
i m working with Diamonds Project. we used a weighting Machine for Measure the weight of Diamonds....so i want to Connect that machine with my Project... so please help me to Integration.....if u have sample code or DLL for that please send ....virani_dilip@yahoo.com
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Have you consulted the manual for the device, or checked if they have a home page that may contain any information?
How to interact with an external device is very specific to the type of the device, so at least you have to specify what device you are using for someone to be able to give you any information on it.
---
b { font-weight: normal; }
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Integration with devices plugged into a computer is usually done with a COM component provided by the manufacturer.
As already suggested speak to the manufacturer of the item you have.
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hello guys anyone can give me a sample code on how to edit text in listview.subitem without displaying any dialog box?
thanks!!! 
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I have a problem using the menubar with a datasource of the sitemap. The sitemap has the features that I need but not the structure I'm looking for. The sitemap provides a top-down structure, but unfortunately when you are populating the menubar everything becomes under one menulist. I would like each menulist to have it's own ability to have a top-down structure with the securitytrimmingenabled. How can I accomplish this?
Blah blah blah... say your prays...
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hi friends
i am working in ms access forms,i have an updation form in my project which contains a combo box ,combo box is bound with deparmtner name field os department table, i want when ever user select a department name from thsi combo box all other information related to selected department will show in other text boxews of form and user can change ne entry and he can update db at buttons click event, i need ur help regardign all this
best wishes regards
Farooq Azam
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hi, does anyone know how could i draw a line in vb.net form like vb6?
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Search this site for GDI+ articles.
--------------------------------------------------------
My development blog
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!
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Use GDI+ tool in your application
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Ok, im almost done making a program that gives you the command to use ACL's on routers and thus making the life of a person that doesn't know how to program a router ALOT easier. So lets cut to the chase.
If there is anyone here willing to help me out and for which ill be very grateful, all i need is a way get the values from an IP adress and the corresponding Wildcard Mask, and give the allowable adresses.
If you are unclear by what I mean please tell me and if anyone has anyidea on how to do this, i am eternally greatful, in the future I plan to release this project to the public anyways.
Ty so much in advance! 
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Hello
Is there any way to get all the child nodes of a selected node?
I just need a idea how to do this.
Thanks you all
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VB.Net?
Simple: treeView.SelectedNode.Nodes
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Hi, i'm new here but have been using vb.net for around a couple of years. I have set myself that task of creating a modified textbox, one with round corners. However it's been very frustrating and the textbox seems to ignore the paint eventhandler. I've come to realise that i'll need to subclass the textbox. However i don't have much experience with this, so i was wondering if someone could help to start me off in the right direction.
Thanks.
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I downloaded and installed SQL 2005 Express so as i could use it in my Visual Studio... When i go to Add Item to project, and choose SQL Database, it i get the following message: An error has occurred while establishing a connection to the server. When connecting to the SQL Server 2005, This failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (Provider: SQL Network Interfaces, Error: 26 - Error Locating server/instance specified)
While this was true, i opened the settings for my connection and enabled remote connections and then restarted it. Yet the same error and problem still exist...
I tried several different things.. adding connections, and making tables there, yet it still wont work... i cant see to get it to make a usable DB.
anyone with advise, troublshooting steps, or that knows a simple guide that would show how to get this all set up, would be much appreciated...
"Love, Life and Option Explicit"
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Plz give me first of all design for this software and code also. U can send design/code for small parts of this software also.
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No one here is going to do your work for you.
These forums are for asking specific code/design questions.
If you don't have a clue on how to begin, then I suggest that you talk to your customer/manager(/teacher?) and get a list of software requirements needed by this project. Determining this list of requirements is the first step to every professional software project.
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Dear,
we r solving yr problems but we r not developing yr project... so u have to learn software development life cycle. the good Book is Analysis and Design....Enjoy
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