20,278 Topics
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| | HI All, I need some advice for a service that i am writing. I need to be able to connect and send data to around 800 devices (with ip addresses). This needs to be done asynchronously. The problem that i have is that if i create 800 threads the performance … |
| | hi friends How to set application path using VB.Net using MySQL..... The same function using VB 6.0 as Public AttnPath As String AttnPath = App.Path & "\Data" this type, i need vb.net help me plz... Regards Anandh |
| | Can any one help me, regarding resizing and positioning a control graphically at run time in VB.Net . |
 | I want to make a usercontrol which is a combobox but the dropdown will be a grid. So far this is my code and my problem is that the grid wont show. [code] Namespace myComboBox Public Class popUpComboBox Inherits System.Windows.Forms.ComboBox Protected Overrides Sub OnDropDown(ByVal e As System.EventArgs) Dim grid As … |
| | Hi, i have bieng trying to write a method which takes a listbox index (1D array) and find the corresponding 2D index. I did this code with some help which get the 1D index of a 2D array. Now i need to do the reverse from listbox index (1D) and … |
| | I have generated some SQL code SELECT Invoice.InvoiceID, Invoice.CustomerID, Invoice.RouteNumber, Invoice.TreatmentType, Invoice.Information, Invoice.StreetAddress, Invoice.Postcode, Invoice.Invoicecost, Invoice.InvoiceDate FROM (Invoice INNER JOIN Customer ON Invoice.CustomerID = Customer.CustomerID) WHERE (Customer.CustomerID = '?') When i test it in the query generator everything works. However when i add the following code to my vb form … |
| | hiiiiiiiiiiii every one, Iam creating a data table and I want to take data from access db and put it in datat table How can I do it :-/ |
| | Hi everyone, how can i get the updated number of rows from MySQL? Because i need the syntax to do the calculations on the number of inputs, thanks.... |
| | I have a Created a Treeview with DRAG & DROP operations...But I want the shadow effect like---- Open my computer.& click on Folders.....Now drag some item..U See when u drag there is some shadow.........What's dat excatly is called??? Can Somebody tell me ??????/// |
| | I added a property called 'TableColumns" to my UserControl. It has a button on it, since "TableColumns" is a class that contains a collection called "FieldColumns", and two other properties: "ColumnName" and "ColumnHeader". When I press the button on my control's property, a box comes up where I can add … |
| | What I need, is one three-dimensional array that holds: 1. Column name 2. MaxLength 3. DataType My code is close, I just can't remember the syntax for adding data to the array. Please help, Sheryl [code=vb] 'get the column information Dim c As Integer = 0 Dim x As Integer … |
| | hi am lakshman i have developed vb.net application and publish it. then i have login administrater user in vista os, then i have installed my vb.net application its working fine. But same pc same vista os now i have created new standard user then i installed same vb.net application but … |
| | Hey Guys, I'm trying to read a Binary file located at C:\Temp\SAMPLE.DAT values in the file have been stored in format: int32,int32, Double. 1 33 172.50 2 55 40 3 77 5000 1 99 20 4 200 0 I'm trying to read the file and display the results in a … |
| | Hi everyone, I'm a new programmer working on my first project. I am working on a program that I have migrated from dBase (1980's) into Access and Visual Basic .NET (2008). The program user conducts these Income Surveys in various towns in the region and enters various information from the … |
| | Hi All, I am sure having problems with reading from a sequential file. I created a .txt file and placed it several places within the vb.net file folder for the program that I am writing. The problem is that when I try and run the program I get the message … |
| | Hi, OK, am new to .net and am having some problems I can't seem to work out. I have a form called frmExchange that has two buttons and a text box on. what I want to do is type something into the text box and then click one button (btnAdd) … |
| | Hi, Can anyone tell me how to add "" in a string variablein VB.net. for eg if have one string "House". The string itself contains ", how do i declare it? i have tried [code] Dim str as string str=""House"" [/code] Thanks in advance |
| | Hiiiiiiiiiii,:( I got a serios problem this time.. I need to create report each field in the report has different condition so, when i write the select statement I can't put all conditions in one where clause because it will check all of them together!!!! I used select union all … |
| | Hiiiiiiiiiiiiiiiii :) I want to create crystal report filtered with specific values Iam creating the report with wizard... if i filter just one filed then every thing goes fine, put if i filter more than one filed i got the following error when run: Error in File C:\Users\kisruser\AppData\Local\Temp\test {8D5AD4DD-CCD0-451E-BF1F-7E3E31F22880}.rpt: Error … |
| | Hi all, I have a color dialog control on a form and want to be able to filter OUT any color that doesnt have a "proper" name ie I want to keep colors with names like Blue, Red, Green etc and REMOVE colours like ffff8000, ff80ff80 etc. Is this possible? … |
| | I have loaded a map in picture box, but I can't move around it (to see the whole area of the map) Can someone help me... |
| | Pls can any one help. i need a programe that if month is the highlighted in the calendar to display textbox1 to be [B]True[/B] but if is false to display is [B]False[/B]. With specify date. pls have a look at my code it only display False if when the date … |
| | How to product this code as shown below: If I enter "5" and "10" in the console screen, it display 5 ***** 10 ********** Whatever I enter any positive numbers, the screen will display the asterisk partern and depend on the number input. Please tell me the method using VB … |
 | Hello I'm new here and im a bit confused about a certain code i am trying to do. The code is for opening the file dialog and when the object has been selected it would be shown in the web browser or open any file, the code i have done … |
 | when trying to update a sql database i get the following error message on Update Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information the column UserID is the PrimaryKey any ideas would be appreciated Thanks Peter example code: … |
| | I have two pictureBoxes & two Panels. On PictureBox1_Click, I want that Panel2 is Fadeout & Panel2 is Fadein. & on vice-versa on PictureBox2_Click. I write the foll. code-- But with that code form is also fade in & fade out. [code] Private Sub PictureBox1_Click(ByVal sender As System.Object, ByVal e … |
| | hello every1, I am a college student and a new user on this forum just like I'm new to VB, please take it as if I know NOTHING about VB, I have VB 6.0 on my system, and I av a mini project to submit b4 February 20, 2009. I … |
| | Alright folks...I'm new to this visual basic stuff, and to the site. I am working on an assignment for a class...it'll probably look pretty easy to the rest of you, but I just can't figure it out. What I need to do is take the information from the input box, … |
| | strAthleteToken = strRecord.Split((",")) the statement above gives an Error message -Option Strict On disallows implicit conversions from 'String' to 'Char'. (BC30512) ..... can someone help mi correct this ..... strAthlete and strRecord were declares as Strings....... .....thanks |
| | Hi, I could do with some help please, worked on this all week and still do not know where to start. i need to wirte a program starting with a one dim array in one vb project then use a two dim array to do the same in a new … |
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