vb.net

AJAX CascadingDropDown ViewState Problem

Question: How do I maintain both the contents (from queries) and selected value of both dropdowns after postback? Source Code: Download my source code from this link (link now works). Just add a reference to your AjaxControlToolkit User Action: Select a value from each dropdown. Click Submit. After Postback: StatesDrop: (Selected va...

MySqlDataReader giving error at build

Hey there. I have a function in VB.net that authenticates a user towards a MySQL DB before launching the main application. Here's the code of the function: Public Function authConnect() As Boolean Dim dbserver As String Dim dbuser As String Dim dbpass As String dbserver = My.Settings.dbserver.ToString dbuser = My...

Disposing a Bitmap through its Finalizer

I have a complex program in which I have to first create, then use wrappers around bitmaps and send them across a lot of different classes. The problem in the end is deciding which classes should dispose the bitmaps. Most of the time the end classes don't know if they can indeed dispose the bitmap as the same bitmap can be used in severa...

Keep target page stay in jQuery Thickbox after post-back

Hi, I have an asp.net page "demo.aspx", that has a normal link called "Demo Link" which uses jQuery Thick box. The page that is wrapped inside the Thickbox is "target.aspx", that has a button "Demo Button" and a label. If I click on the Demo Link, it show the "target.aspx" wrapped inside the Thickbox nicely. However, If I click on the ...

Forcing A Postback Asp.Net

Please take a look at the following click event... Protected Sub btnDownloadEmpl_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDownloadEmpl.Click Dim emplTable As DataTable = SiteAccess.DownloadEmployee_H() Dim d As String = Format(Date.Now, "d") Dim ad() As String = d.Split("/") ...

Display xml data in silverlight datagrid, vb.net

I want to display an xml file data in silverlight datagrid. im using the below code but it doesnt work.Please help. My vb.net code: Imports System Imports System.Collections.Generic Imports System.Linq Imports System.Windows Imports System.Windows.Controls Imports System.Xml.Linq Namespace SilverlightApplication1 Public Par...

Is there a way to sort by more than one field in Crystal Reports?

I'm using Crystal Report with VB.NET in Visual Studio 2005. I have report that works if I pass in a list of List(Of Stuff). I had been sorting the report by one of the members of Stuff but a need now to sort first by one member, like Stuff.StatusCode and then by another member, like Stuff.ItemNumber. Can I do this just be having more ...

What would be the best .NET 2.0 type to represent .NET 3.5 HashSet<T>?

I'm writing myself a class library to manage Active Directory. I have an interface: Public Interface ISourceAnnuaire(Of T as {IGroupe, ITop, IUniteOrganisation, IUtilisateur}) Readonly Property Changements As Dictionary(Of T, HashSet(Of String)) End Interface This Changements property is used to save in memory the changes that oc...

.Net Regular Expression

Alright so I want to grab the information on a website thats between [usernames] and [/usernames] I know how to get the string but how would I use regex to only have the information in the middle. Remember I am going to be having more then one thing on the page. ...

"run-time error '453' can't find dll entry point" from vb.net compiled dll referenced by vba

I am coding in vb.net through visual studio 2008. I have successfully compiled a dll file from my code but I continue to get "Run-time error '453'" when I try to reference the dll in vba. I understand there is some sort of compiling error that occurs when using vb.net. Does anyone have any suggestions to fix/overcome this issue? I would ...

How to display some data differnetly than it is stored.

Hello, I seem to have a problem that I can't find a solution for. I have a table that has this format. projectId | departmentId | plan | ETC | month | year | ID But, I need to find a way to take that data and display it like this: Is this something a gridview can handle, or a repeater, or something else? Thank you. Ben http://img8...

VB.NET - Removing a number from a random number generator

I am trying to create a lottery simulator. The lottery has 6 numbers, the number generated must be between 1 - 49 and cannot be in the next number generated. I have tried using the OR function but I'm not entirely sure if I am using it properly. Any help would be great. Thanks. Public Class Form1 Private Sub cmdRun_Click(ByVal sender A...

How to select from datetime in sqlite?

Joined is a datetime data type column in the database and dates are saved as '12/05/2010 15:54:32' This my query: SELECT * FROM users WHERE joined BETWEEN '12/05/2010 00:00:00' AND '12/05/2010 23:59:59' ORDER BY id ASC But it doesn't work. It returns no rows. So how i gan get them? Solution: SELECT * FROM users WHERE joined ...

Panel not displaying while dowloading file

I wrote download excel file in my code. If I click download button I need show ajax-load image (pnlPopup panel). But it is not displaying. I think because of Some "Response" statements (see below code). Download working fine, but simultaniously I want show loader panel too. <asp:Panel ID="pnlPopup" runat="server" visible="false"> ...

How do you remove visual studio's navigation bar in VB.net

I'm trying to remove visual studio's navigation bar in VB.net, I know how to remove it in c# but unfortunately it has no effect in VB.net. would appreciate any help. i'm trying to remove the bar with DBLoggingProvider and (Declarations) ...

How to make custom Combo box control which have contain datagrid in vb.net

I want to make custom combo box which have contain datagrid and textbox too. On clicks into combo box datagridview should be appear and selecting any row particular cell value of the datagridview added on the combo. thanks in advance.. ...

Proxy support in VB.Net

I'm running the following code to check for updates in my software, and I wonder whether VB.Net will automatically user computer proxy settings: Dim CurrentVersion As String = (New System.Net.WebClient).DownloadString("URL/version.txt") If not, how can I adapt it to use proxy settings? ...

Membership Roles.GetUsersInRole not working for me

Dim usersInRole As String() = Roles.GetUsersInRole("HR_Base_Role") Dim Myusers As New MembershipUserCollection For Each UserName As String In usersInRole Myusers.Add(Membership.GetUser(UserName)) Next ComboBox2.DataSource = Myusers The code above throws a "Specified method is not supported." exception on the first line. Any one kn...

[VB.Net] Does IO.File.Copy replicate files attributes?

Does the IO.File.Copy method preserve file attributes? Especially, if I have a write-protected file, will the copy be write-protected to? ...

How can I get the WebClient to use Cookies?

I would like the VB.net WebClient to remember cookies. I have searched and tried numerous overloads classes. I want to login to a website via POST, then POST to another page and get its contents whilst still retaining my session. Is this possible with VB.net without using WebBrowser control ? I tried Chilkat.HTTP and it works, but I ...