20,285 Topics
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| | hello there... acctually i m creating a desktop application in vb.net so on the data insertaton page i had got an error that is "the ConnectionString property not initilized".. so i m posting all my code here... kindly help me.. [code] Public Class Registration Private Sub Button1_Click(ByVal sender As System.Object, … |
| | So hopefully I am aloud to post this here. I am doing great in class but this chapter and especially this programming challenge has got me stumped. So I am in need of help. Heres the question: Create an application that when a user enters a positive integer value in … |
| | Can anyone please help me on this? The server is supposed to see which computers are online and which are not. if the workstation are not online the computer should not be seen on the server's list but if it open again the computer name should appear on the list. … |
 | Hi... :) I have only [B]1 LABEL[/B] in my form. There is [B]no text in Label1[/B]. I want that when i run the project, the label has any [B]word or number[/B] in it like '[B]1[/B]'. I want that when i run the project [B]AGAIN[/B], the [B]word or number[/B] in the …  |
| | I'm trying to update an Access database by using an OLE connection, retrieving the information from textboxes where the user enters the new information. All the fields in my Access table are required fields, so I have validated that some info is entered in each one of the textboxes and … |
| | I have this code that searches for a set of numbers in my textfile. When it finds those numbers I want it to print what's on column 5 to 12 in the same line. Is this possible to do? I've been looking for an answer for ages now, and I … |
| | I'm tyring to connect to the sql server on my lcoal machine and have this error. "An error has occured establishing connection to the server. Failure may be caused by the fact that under the default settings SQL server does nto allow remote connections.(provider:Named Pipes Provider,error 40 - could not … |
| | hello all, Can any please help me in this : I have a form , in a website which has : year : text box Photo : type ="file" Submit button. Now, if any user enters the year, and uses the browse button to select any photo, and then clicks …  |
| | I have created a vb application that uses "shell" to run another vb application that uses a webbrowser to navigate to a web site and then sign in to the site and collect information for use in the original application. I built the browser application to execute the navigation automatically … |
| | Hi Can anyone tell me how can i track mouse click. I am developing a program to track mouse click and I particularly want mouse click coordinate in output file. can anyone help me to develop this program. Thanks a lot |
| | Hi , I need help because I would lik a timer of 1 minute in one of my forms, and when that timer reaches zero, it would automaticly resume to the next form. Any help would be greatly appreciated! |
| | I made a form with only 1 Button. I want that when i click that button, 2 more buttons should be appeared. Example: Button1 is clicked. Button2 and Button3 are displayed. I have named Button1 as Scan. When i click on Scan, the Button2(Pause) and Button3(Stop) should be displayed. When … |
| | Hey, I have created a new AppDomain with a unique name. But i do not want to store that name during the whole application runtime. So i ask you guys if it is possible to get that created AppDomain by name back. [CODE=vb] Sub Main() AppDomain.CreateDomain("TestDomain") End Sub [/CODE] so … |
| | Dear Freinds i want to show mulitple rows of sql server in which bill_no are same to show in datagrid view when i want to edit anything in data and i show the data in datagrid view with the help of bill_no but when i search the data by bill … |
| | Hi, I have an access databse, but the data is link to excel, so i cant changes the data inside access database. However, i just want to retrieve the data inside the access database using VB datagridview, but the system pop out an error said 'cannot find the input table … |
| | I'm calling a GUID with a system function and trying to insert it into a database as a primary key. i'm using vb 2010 .net framework with sqlce server making my datatables. the column is AutoNumber which i set up to be a uniqueidentifier. the length is not adjustable and … |
| | Hi~ I am trying to add a combobox into my datagrid which connect to access database by using the code below. The result I wish to get is the combobox is locate at my datagrid column that already exist, but what I get now is it will add a new … |
| | I have a form with a few textboxes where the user can add data to a database. It also has a "cancel" and a "close" button. Both do the same: [CODE]me.close()[/CODE] I've used the "validation" event and the errorprovider control to prevent blank fields and not numeric data where numbers … |
| | Hi there, I see a sample code that an object is instantiated within the class definition block. But when I test the folllowing, I got error "Process is terminated due to StackOverflowException."? [code] Imports System Module xx Sub Main() Dim a As New c() End Sub End Module Public Class … |
| | Hello- Could someone be so kind as to help me understand how to sort a vb.net Datagridview that uses a collection as a datasource? I can sort the datagridview by clicking on the column header when the datagridview datasource is a datatable, BUT not when the datasource is a collection. … |
| | When I read a text file as the code below the first line returns as nothing. I checked the text file and it contains 3 lines before the read. After the read the first line is blank the following 2 lines have values. I don't write back to the file, … |
| | Hi, When i open a 24bit bitmap, i need to display the number of colors used out of the 16777216 in the bitmap pallete. Is there a simple way to obtain this statistic or does it involve looping throught the pixels and counting the colors. Thanks |
| | Hey, i am getting x and y values through AR marker.I want to control windows mouse pointer through that x and y values in c++. So can anyone help in controlling mouse with simple x and y values. If any tutorial or help online, kindly post the link or some … |
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| | I have created a thread which have to do some xml parsing in its class. The class Inherits from System.Windows.Threading.DispatcherObject while its parsing i wanna get the dispatcher to add the items to a ObservableCollection(Of T) i will add my code here and describe the problem in the comments [CODE=vb] … |
| | Can you give me a sample registration module ? Please. Badly Need It. |
| | Hello all, I am looking to create an application which includes: [LIST] [*]Removing a computer from the domain [*]Removing a computer from a workgroup [*]Adding a computer to a workgroup [*]Adding a computer to a domain [/LIST] This application will be ran on the computer manually. Thanks! |
| | I am attempting to create script that sends info and login/logoff timestamps to a text file. Can anyone assist with showing me how to get it to output the duration between login and logoff? AT the moment the script creates a separate line for each login and logoff. I can't … |
| | I use the binding navigator in my application, but when the resolution of the display gets to small and I have to use the scrollbars I get a problem. the scrollbars automatically scrolls down below the navigator bar instead of showing it when the window loads. Anyone who can help … |
| | I have a program that is meant to send and receive pictures. There are two parts, client and server, the server sending pictures, and client receiving.the server needs to send it across the internet, then the client needs to receive and show the image in a picture box. I put … |
| | Hope you can help me. We badly need some sample codings. |
| | i have developed a student form asking student details such as name, address, class, standard etc... The details are saved to STUDENT table (SQL Database). There is a another form with datagridview control showing data of STUDENT table. The form2 can be shown on student form by VIEW button on … |
| | I want to insert number for City_Id and City_name , i wrote a query for auto generate number for City_Id,working fine but in the city name i want to avoid inserting duplicate value like if Mumbai is a City ihave already saved then system should not allow that name again. … |
| | Hi Friends, I have a strange problem and I need your support to get this resolved. Recently I have created a setup and deployment project for my VB.NET application. In that seup project unknowingly I changed the command section to .exe. Now after Installing the application in my pc, whatever … |
| | I need to design a search/filter for a DataGridView. The search contains 2 comboboxes and 1 textbox. combobox1 are the field names, combobox2 is the criteria (=, <>, like), and the textbox is to input values. For example: Users will select the Road Name field from combobox1, "=" from combobox2, … |
| | Im creating a filter/search for a datagridview in VB. I have a two comboboxes and one textbox. combobox1 selects a field, combobox 2 selects criteria, textbox is for values. After I select my field and criteria and enter in my value, I hit a Go button and run the following … |
| | Hi, I am trying to make a windows forms application that starts using Sub Main instead of the Form1_Load event. I have tried putting this in Public Class Form1 [code="vb"] Public Shared Sub Main() MsgBox("ASdf") End Sub [/code] and also tried putting this at the top of the programs code … |
| | Hi, I'm hoping some of the wonderful minds here can assist me. I have written a Windows application that takes user supplied locations, and extracts data from an Access db and puts it into Excel for a few manipulations (calc a percentile, get a few totals). It works, but it … |
| | Hi all I have Created a software using Vb.net and Ms-Access using VS2008. I am using ADVANCED INSTALLER to create a .exe Package and get its deployed. It works well in my machine but in the Destination machine , I get an error as shown below: [CODE] System.IO.FileNotFoundException: Could not … |
| | i want to make prject in vb.net please help me for online exam project |
| | i have problem in displaying a single line in different line... my code is Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Me.TextBox5.Text = Me.ListView1.Items.Count Dim oFile As System.IO.File Dim oWrite As System.IO.StreamWriter oWrite = IO.File.CreateText(" E:\ " & Me.ComboBox1.Text & ".txt") oWrite.WriteLine(" ") oWrite.WriteLine(" ") … |
| | people plix help me with ASP code for login. am using MSSQL i want users who have registered using their emailadress and passwords to be able to login. |
| | Hello, i have created a Office management software in vb.net & access, but i m not able to run it multiple machines. |
| | I'm currently in the process of creating a Windows application much like "Steam". The problem I'm having is that I need to be able to add new games to the list which auto generates a button and the code behind it. I have no idea how to do this. Can … |
| | I have a table which contains InvNo,product,............ Another table 'Product' contains Type,subtype,....,InvNo I have form which has Datagridview and textboxes I want to what, when i go to 1st record (InvNo=101),the datagridview should display how many product which has InvNo=101. How can i bind Datagridview to currencyManager?? Plz help me............. … |
| | Dear Sir, I need information about store procedure in SQL and how can i access textbox values into store procedure. and connection string for remote server (sql server 2005 installed on server) pardeep |
| | Is there a problem with my code? i'm trying to refresh a few form checkboxes based on text typed into machinetxt.text with what is currently stored in the database. i put this into the refresh button click event. here is my code: [CODE]Private Sub machinerefreshbutton_click(ByVal sender As System.Object, ByVal e … |
| | Hi, I am developing a VB.NET 2008 application, consisting of a main EXE application and several resource DLLs. I need two functions for the DLL: 1) one function to get a list of all files in the resources of the DLL. 2) one function to return 'by name' a resource … |
| | Dear Freinds I face a problem with coding which i put in my datagridview coding is [CODE] Dim dis As Integer For abc = 0 To counter - 1 dis = DataGridView1.Rows(abc).Cells(3).Value * DataGridView1.Rows(abc).Cells(4).Value / 100 Next DataGridView1.Rows(abc).Cells(5).Value = dis [/CODE] its work 1st time when i load the programme …  |
| | hi, hmm guys i want to know what are the common kinds functions is visual basic.net .?? any answer please . |
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