Visual Basic .NET Forum

Hello All, I have two objects one is Product and the otherone is the Category. Category object is like Food,books,Medicine and etc which has different tax rates . My product object has properties like name ,price , CategoryID. I need to create a collection of my products and in this collection I want to have the Categories tax rate too? How...

Hi, Is There a way to read svg files using VB.Net stream reader or any other method.

Hello All, I am trying to update a database using dataset but seems that I am missing out something. After going through a lot of posts and checking my code, I am still at my wits end to figure out how to do a simple update. Here is the code. Any help would be greatly appreciated. Regards,

I have a listview where users can add items via a textbox and an 'add' button. The problem is, the code below doesn't work for keeping duplicates entered. If I create a ListViewItem with the same data in it as another ListViewItem, why aren't those two items considered equal? For example, a Debug.Writeline(lvItem1.Equals(lvItem2)) would...

does anyone know of an easy way to say how long has a specific system been up and running? I just need to get back the uptime of the servers on our network for a report, they are all in a Active Directory domain... needs to be in C# or VB.NET preferably. thanks!

I'm using VB.Net 2005 Ok so I have this object that I create on Form 1. Form 1 in turn calls Form 2 that needs a copy of that object to do its work. Is there any easy way that I can copy or pass that Form 1 object to Form 2? I don't want to make it a global object.

Hello, I want to put logging functionality in my application and i want to store this information in an XML file with date, string and integer values. How do i write just one record to the XML file. I don't want to use a dataset and i don't wan to load the entire file into memory.

Hello All, What I'm trying to do is update a child record using a parent-child relation. I want to find out if it is faster than than doing multiple selects. Anyways, I've created a dataset (ds), have 2 datatables (dtRC and dtST). Created the parent-child relationship with multiple columns and added the relation to the dataset. Now what...

Hi, another question for you. I looked around but found nothing. I have a MDI container calld frmMDIMain, that contain some child form....one of that forms is called frmPostIt and I need that form stay always on top of all other child contained in MDI. is possinble to do this? Many thanks in advance

i have to create this at VB express 2008 When the user clicks the Process Files button, do the following: Read and process the contents of each of the 6 files. Each file contains data in a different format. and display them in arrylist. In the list it should contain name of the file and number of person in the text file example below. ...

I'm creating a multi-column dropdown since there isn't one. My idea is to override an Infragistics Combo and add the dropdown as a grid object. So I create a basic override of the control. The first thing I want the control to do is kill the default button and add a new one. So in the initialization (New) area of the control I add the code...

Im trying to make a software in VB.NET that is supposed to handle high-res images, ive discovered theres a limit in the size of the bitmap object around 10000x10000 pixels. The program takes a number of input files and then create new files with parts of the input files. so basicly i load the input files in memory so the program will be...

I have a datagridview on a Windows form where one of the columns is a checkbox. After checking or unchecking the checkbox I try to update the database. The following error appears System.InvalidOperationException was unhandled Edits to Textbox columns update without a problem. Any suggestion on what I'm doing wrong. Thanks... --

Hello I have created a TreeView and i wish to select a node into it and then expand the selected node. Is someone has an idea ? Thanks

I'm looking for a little help; I've tried everything. Here is a little section of code of a bigger project. What do I need to plug into the ? in the FillRectangleRectangle call to get this to work? I got the FillRect... example from MSDN, but I can't figure out how to call it correctly. Thanks for any help. -Bob Private Sub...

Hi, when building a new project i get the following errors Invalid language characters in property 'Depenendencies' Invalid language characters in property 'Files' It all points to ICSharCode.SharpZipLib.dll Checking in the property window I cannot see what the error could be. The projects builds successfully so it does not seem to be...

I'm having a problem trying to set up code in VB to handle the case where an argument in an API definition is defined as a pointer to a pointer. An excerpt from the API's definition is: void ** Object //Pointer to an interface pointer Object Pointer to an interface pointer variable that receives a pointer for

I'm trying to use the Bitmap class's Save Method to save a Bitmap as a GIF. My code runs fine, and converts the image, but the quality is not anywhere close to as good. I know that GIF quality is not a good as a BMP's but, is there a way to convert the image while preserving its quality. Any help would be greatly appreciated. Here's what I...

Hi When using Table Adapter Configuration Wizard if 'Use SQL Statements' is selected as Command Type, the data table's name in dataset is retained and only its data adapter's select statements are replaced. If however 'Create new stored procedures' is selected as Command Type, the data table name in replaced by the name of the newly created...

Hi, From a C# application am I writing some text in a Word.Table, in a Cell of the Table to be more precise. The cell has a certain width and any string written in the cell will cover one or more lines in the cell depending on its length. In other words, it will use wordwrapping Now, I have to determine the amount of lines that the...

Hi, I'm wonder VB have som function to get First day of the week? like I'm have dim d1 as datetime=12/5/2007 d2 = firstweekday(d1) '=7/5/2007 thank you very much

Hello! I have a problem. I'm using a dataset in VB.NET with multiple tables with relations between them. I would like dataset to update to all related tables with right identity, when certain record is added. The problem is that I don't know how to do it, when I'm not using stored procedures. I found an article in which OnRowUpdated event...

I am developing an application in VB.NET using Visual Studio 2003. I have a dialog box where the title may be somewhat long, so I want to resize the window to fit the entire title. I already know to use CreateGraphics to measure the length of the string, so my code is something like this (from the Load event): objGraphics =...

Under what circumstances would e.Cancel be set to True on entry to the Closing event of an MDI child form? I have found that this is why my application won't close properly. I can explicitly set the value to False, but I would have expected it to be False on entry. TIA Charles

Hi, I am getting 217 for the julian day for today, but I think it should be 230. Julian day simply increments each day from the beginning of the year. The system day is tuesday aug 17th, which is correct. Dim myCal As New JulianCalendar Day = myCal.GetDayOfYear(System.DateTime.Today) -- Paul G Software engineer.