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Visual Basic Questions

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34.4k Topics 120.1k Posts
  • how to merge two or more datasets ?

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    dataset.merge() It is usually used to synch a data set on the client with updated data from the db server. For instance I download the customers I am browsing and updating, I save to the dbserver. Others may be doing the same. You pull down new data from the dbserver and merge it with what you allready have on the client. There are other instances but I think this is the most common.
  • what is serialization please explain it?

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    Serialization is the process of converting an object from its in-memory representation to a sequence of bytes suitable for saving to a file, sending across a network or passing between processes. The reverse process, unpacking the byte sequence and recreating the object, is known as deserialization. Typically the in-memory representation includes pointers to other objects, or the object is represented internally by a number of non-contiguous areas of memory (e.g. ArrayList). The pointers cannot be written directly to the byte sequence, because they won't have the same meaning in the target process (whether on another system, the same process at a later point, ...)
  • How to insert picture in a cell of the datagrid ?

    question tutorial
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  • How to merge two cell of the datagrid ?

    csharp tutorial question
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  • how to drag & drop control at runtime ?

    csharp help tutorial question
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  • Got one problem working with windows form?

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  • How to pass dataset to crystal report from vb.net project

    csharp tutorial
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  • Problem with webbrowser control

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    Document.Write needs a document to write on. Does the browser control display document? If you don't want to change an existing document, I suggest you look for a method "Document.Open". In JavaScript window.document.open() opens an empty document.
  • MailSlot in VB?

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    It is probably possible, but the documention on it is written for C++. That can be found here[^]. There is no class in the .NET Framework that wraps the MailSlot protocol, so you either have to find a thrid party control or library to do it for you or write your own from scratch. Entirely possible in VB.NET, but a bit time consuming... RageInTheMachine9532
  • Antivirus Update Monitor.

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    You better check with Symantec first before you go plodding thru their servers with code that isn't theirs! Don't want to crash their stuff now do we? :) While your at it, you could also ask them if they would be willing to give you documentation on what the process is. RageInTheMachine9532
  • Insert an image into your message

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    Wordpad doesn't have an object library like Word or Excel does. WordPad is nothing but a user interface wrapped around a Rich Text Box control. For Windows Forms apps, it's simple. But, there is no Rich Text Box control that comes with VS.NET that works on Web pages. Here, your going to have to search the sites, like www.asp.net or download.com or whatever, to find a 3rd party control to do what you want. I found a few out there, but they weren't free! RageInTheMachine9532
  • How to safely disconnect from a webcam ....

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    Send it to my email address. I'm also going to need the address to pick up a copy of the SDK your using. RageInTheMachine9532
  • The Recordset Fields property/collection

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    Thanks, I'm taking over a contract where the main goal is to clean up the code and make it more maintainable (and get it ready for .NET). I've been primarily working with Java and C++ for the last 4 or 5 years, so things are obviously different. Anyway, I've come across a lot of code that used default properties and before going in there and changin a bunch of stuff I wanted to make sure I had good reason. Thanks.
  • ASAP How to create Strings/SubStrings

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    Colin wrote: If the user gets it wrong, by all means, focus on the control, but don't delete the text - What if the user just mistyped one character? Do they want to have to type it all in again, or just correct the erroneous character. If the input is not valid I am to clear the textbox and set focus back to it and have then re-enter the phone number. That is why I did it that way, it's part of the assignment. I know there is a way to have the error part to be selected instead of the whole thing but right now I am just trying to get the required part done and understand how to do it. My main problem is with creating the substrings and how to get the IsNumeric function to skip the dashes and only read the numbers. I forgot to add that it only clears the box if the txtTel.Text is a letter char, if it is a number is won't clear it.
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  • AddFile method

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  • accessing and using the WAB

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  • Excel spreadsheet help

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  • ASAP...Need help on choosing the control...

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