vb.net

Creating an object that's defined in a dll that I don't have a reference to

I have the full path to a dll, but not a reference, where I need to instantiate an object that implements an interface that I've defined. I do have control over the other dll, so I am able to do things like stick a static function in the dll that returns the object I need. I'm just not sure how to call that function, or even if I'm appro...

vb.net loop through datarow and add each value into a listbox

Private Function ColumnEqual(ByVal A As Object, ByVal B As Object) As Boolean If A Is DBNull.Value And B Is DBNull.Value Then Return True End If If A Is DBNull.Value Or B Is DBNull.Value Then Return False End If Return A = B End Function ..... Public ...

Using a VB class from the same ASP.NET web site project in a C# class

I have an ASP.NET web site project where I am using both VB.Net and C# class files. I have included separate sub folders in the App_Code directory for classes of each language. However, while I can successfully make use of a C# class in a VB class, I cannot do the opposite: use a a VB class in a C# class. So, to illustrate, I might ha...

singleton pattern in vb

I am normally a c# programmer but am now working in VB for this one project when I use to set up a singleton class I would follow the Jon Skeet model public sealed class Singleton { static Singleton instance = null; static readonly object padlock = new object(); Singleton() { } public static Singleton Instance ...

Devexpress LookupEdit is not displaying the selected row for the last row.

I am using DevExpress.XtraEditors.LookUpEdit to display the information about the classes available. Currently it has 3 columns. The lookupedit is working perfectly except when I set the editValue to the last row. When the editvalue is set to any row other than the last one it shows the selected row when the lookupedit isn't opened yet w...

How to set BackColor of a table cell dynamically with a database value?

As a bonus to the project I'm currently working on, the people would like it if I could change the background color of individual table cells depending on what their value is. So in the RadGrid_ItemDataBound event handler I have, I'm trying to set the BackColor of the cell if the cell's text equals a certain value from a dataset in my da...

somthing._Default is not allowed here because it does not extend class 'System.Web.UI.Page'

This has got to be one of the most frustrating issues with asp.net. I first got the error parser error cannot load default and as I have done before checked if the naming was correct in th bin folder and made the changes accordingly. Now I get the following error: somethiing._DEfault is not allowed here because it does not extend class ...

Best way to read a textbox line by line in VB.net

What's the best way to read in a the contents of a textbox line by line in VB.net 2.0? I'm currently using the one listed at TextBoxBase.Lines Property at MSDN but wanted to know what other ways could one read in a textbox line by line in VB.net. ...

How to get past embedding a html form for paypal buttons asp.net

Hi, I have some experience of using paypal with an asp.net website, however this issue has me really stumped. Root of the problem: You cant embed the html form for the paypal button inside your page form. Original solution: Originally my website was using multiple aspx pages so I could simply arrange my form tags so that they weren't...

DataGridView cell search using a LINQ query

Howdy, all! I'm still relatively new to LINQ, and have done more stumbling around than anything, but I have really liked what I have seen so far. So with that in mind, I have a VB.NET search routine, part of which is provided, below, that checks all Text cells in a DataGridView for a given string (inclusive), using a basic set of neste...

.NET Dataset design

I have some concern about designing Datasets. I was told that it would be good to have a dataset for each table for maintenance purpose. Because frequent change in database tables is expected, having one dataset including every tables would be pain to make the corresponding change in the application. Q. is it good approach to have a ...

Understanding ownerdrawn listbox + OwnerDrawVariable property

I have this code for an ownerdrawn list box that is repainting too frequently. It seems to be related to trying to scroll an event with a different height than normal. Here is the 'smallest code to reproduce the problem' that can be pasted into a blank form (erase the designer file) - VB version (c# of course does the same thing): Publ...

Setting Server Bindings of IIS 6.0 Programmatically

I'm trying to set up an installer to register a web site. Currently, I've got it creating an Application Pool and Web Site under Windows Server 2003. Unfortunately, whenever I try to modify the ServerBindings property to set the IP Address, it throws an exception at me. I first tried this because the documentation here told me to http://...

mySql input string was not in a correct format

I've done Microsoft SQL server for years.. but just today tried MySql. The question is with vb.net trying to do a save to MySql. The stored proc looks like this. DROP PROCEDURE IF EXISTS test.spAgency_Save; create procedure spAgency_Save (IN p_intTblAgencyID INT, IN p_vcAgency varchar(20),IN p_dtmDate datetime, OUT p_Output INT) begin...

Condensing vb.net code

I have the following code: Private Sub txtFileFromLocation_TextChanged(ByVal sender As System.Object, ByVal e As System.Windows.Controls.TextChangedEventArgs) MachineNameUIDisabled() ServiceNameUIDisabled() ToLocationUIDisabled() btnSubmitUIDisabled() lblStatusClear() End Sub Private Sub txtMachineName_TextCh...

SQL: how to check for a specific DateTime

i need to check for a specific DateTime value in my table from my code (VB.NET) and i don't know how to format the DateTime as a string. i've read that SQL Server will recognize my string if it's in either date, time, or date and time format. i mean: 'May 15, 2004' '5/15/2004' '20040515' '2004 4 am' will SQL Server recognize these str...

VB.NET - Snake? Game - Development

I am currently in the process of making a snake game using VB.NET... I was just wanting to gather ideas on how to do the body of the snake... Currently I have a class called SnakeBody which contains the following code: Public Class SnakeBody Dim yCoord As Integer Dim xCoord As Integer Dim body As PictureBox End Class I g...

ASP.Net Website quote

I am new to creating websites for people on a money-earning basis.. I created my Dads website for my final year project, and he will pay me eventually but obviously I cant charge him as much as anyone else. I have just been to a trade show where I picked up 1 definite and 2 possible sites to do. The definite one is as follows: They wan...

How to use data reader in vb.net

Please help, how do I really use data reader in vb.net. I'm using odbc to connect mysql and vb.net. Function I declared on a module: Public Function form2search(ByVal drugname As String) As OdbcDataReader cmd.CommandText = "SELECT * FROM drug WHERE Drug_name LIKE'%" & drugname & "' " Return cmd.ExecuteReader End F...

Accessing Checkbox in child repeater of nested repeaters and performing task on button click

Hi anybody plz explain me about nested repeaters, i have successfully, done listing of records in nested repeaters, now I want to access or do Findcontrol of record Linkbutton and open related message in a new window, checkbox looped through all records - on checking the checkbox and cliking on submit button task will be performed and th...