Visual Basic .NET Forum

hi, i have to take 3 property in windows form using 3 textbox.i have to bind arraylist to datagrid.but i have to to show only 2 columns and hide the third one.i use visual studio 2003 and need to bind arraylist manually using for each. hope to get earliest reply.

Hi All, I am creating windows application in vb.net and I have problem related to multiple threading. Let me describe you the scenario and what are the problems I am facing. On form Load I am creating the thread the calling the relevant methods. like below: Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As...

I can't figure out the syntax for having an optional byte array in a .net sub Public Sub MyFunction(ByVal Filename as String, Optional FileData as Byte()) The optional keyword requires me to set a default value - which is understandable, but I cannot figure out the syntax to do that here... Public Sub MyFunction(ByVal Filename as...

I'm a beginner in visualbasic.net I've 50 textbox from 1 to 50 and my question is how can get a value o show a value in a specific textbox? for example the user enter a number to a text box and I save the user's number to variable X now I need to show in textbo(x) the number which enered the user or get the value of textbox(x). Do I need a...

Am having a hard time co be connected to sql server 2008 enterprise edition. i am using oledb in this fashion db.connectionstring="Provider=SQLOLEDB.1;User id=helen;password=123;Initial Catalog=mydb; Data Source=server" but it gives this error: Login failed for user 'helen'

hi. im using ms access 2003 and vb 2010, i already have 3 different vb apps, and i want to access a single database over the lan. but i dont know how. is this possible using a client-server type or is there much simpler way to access the database?

Hi all, I have win7 pro, on my win form is a traffic light icon(when it starts it is red, when finished it is green), so that I know when job is finished. But when I run application icon isn't changing and form hangs it self, can not do nothing until job is finished. Only in the end, I see that icon is quickly changes to red and then back to...

Hi, I'm calling the following method from a button click event to export a datatable to excel. After the export is completed, the excel application object is quit, released and assigned to nothing. But in reality it's not getting released and stays active unless the entire application is closed. So every time the button is clicked for export,...

Hi, I am having datagridview in that I have datagridview combobox column and noraml textfield. I want to know that how can I load selected value in that combox box when I am loading all entered details in data grid view.

how to postback gridview when timer counts 0.radio buttons inside gv should be disabled when timer counts......any help would save my life......

Hello I have several VB.NET Windows Form applications connecting tp several Network databases. When I build, update and test my apps, I want them to connect to a testing database as opposed to connecting to the production databases when the app is released. Right now, I change a setting in my coding before releasing the app, but I would like...

Like many ppl my gf is playing on facebook and she loves it but has to many gifts. so i began creating an autoaccepter for her in VB2010 Express. this is what is have so far. 1. load facebook request page. OK 2. find the gifts and extract the links. OK 3. Visit the links and retrieve the gifts OK so all seems ok right? but no. when i...

i am couldnt able to insert datagrid view manually entered data to mysql db with other control datas together into 1 table. so i made 2 table and in 1 inserting all grid data in other rest still i m getting the same error: " you have an error in your SQl syntax; check the manual that coressponds to your mysql server version for right syntax to...

I have a form that has a datatable on it with the following code: Imports System.Data.SqlClient Imports System.Data Public Class AddHoliday Private Sub AddHoliday_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'TODO: This line of code loads data into the 'MDRDataSet5.scratchpad2' table....

I have a program with 32 PictureBoxes (pb1 ... pb32). The user will select one of the picture boxes. All picture boxes will call the same subroutine, passing the variable of the name of the box clicked. Rather than writing a click event for all 32 boxes, and call the same subroutine from each event, is there a way that I can determine which...

Hi I'm trying to add a new section to my app.config file under the applicationSettings section and then read it from my WinFroms VB.NET application. My app.config would look like this: <?xml version="1.0" encoding="utf-8" ?> <configuration> <system.diagnostics> </system.diagnostics>

I am using VS2008 and vb.net I have a nested tabcontrol. tabControl 1 and tabControl3 In tabControl3 I am trying to populate a text control with a value from a control placed on tabControl1. ' add a savings tabpage

Hello again... i am here again to disturb u!!!!!!!!! I have two projects made in vc++ & vb.net of visual studio 2005 now i a third project in vb that integrates above two. I HAVE SEARCHED GOOGLE and result is negative

I'm writing an application that uses USB interface.... I'm getting this error sometimes when i migrated from vb6 to vb2005 (migration required to reference process not by his address but by Delegate function) A callback was made on a garbage collected delegate of type 'Project1!Project1.HIDDLLInterface+SubClassProcDelegate::Invoke'....

I have developed a windows service in VS 2008 which launches another application at my local computer. The launched application has a UI, so, I used CreateProcessAsUser API to launch the application (start the process). Private Function CreateProcessAsUser( ByVal hToken As IntPtr, ByVal lpApplicationName As String, ByVal lpCommandLine As...

Hi. Im currently doing a project on magazine editor and I'm suppose to let the user edit the pages of some online magazine. There will be a treeview which has parent nodes named, 'Page1, Page2' & so on and the child nodes will be, 'Video, Images, Podcast' depending on what the user choose. And the user will be able to upload the whatever he or...

Hi, I am working on vb.net... i need to retrieve particular word from word document and display it on vb.net label or textbox... like in word documnet Name : xyz DOB: 13/02/1990 here i v to retrieve oly the name of the person, dob etc... plz any one help me.. with detail coding.. Help will be Appriciated

I have the following form and I'm trying to add a error to the page that if the recordset = 0 then there is a message on the web page stating that there were no results. What's the best way to do that? Imports System.Data.SqlClient Imports System.Data Partial Class _Default Inherits System.Web.UI.Page Protected Sub Page_Load(ByVal...

We have a winform user control, with which we generate a CAB (it has the .msi and .inf files). It's signed. When the UC is instanced, I need our vb.net app to compare its version with that of that installed in the client PC. I tried with GetValue but to no avail, maybe I'm doing something wrong. Thanks

I have the following code on my page Imports System.Data.SqlClient Imports System.Data Partial Class _Default Inherits System.Web.UI.Page Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load TimeDateLabel.Text = String.Format("Today is {0:F}", DateTime.Now) ...