20,278 Topics
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| | having a problem with my databinding.I created a table adapter for a table from my database, it has 3 columns and when i preview the data it is all ok. I want to get a datagridview with the columns by dragging the datasource table on to the form but no … |
 | Hi there, I am working on a project and want to resolve invalid form submition. i want to create a regular expression which can check each form value that must not have any string like as: '"abc.Xyz What exactly the regular expression should be?, for more information please feel free …  |
| | Hi, I was wondering if there's a way to check an existing id in the main table when using temporary table,then use another id for inserting records.Since it may cause error for using the same id in the main table. Is there a way to do that? |
| | hi good afternoon sir, i am creating one vb.net project ,it is working nicely but the problem is when am adding datas to database it is adding but when am stop that execution and start it again it is deleting the records ...how can i solve this |
| | Write a VB app that has two forms. On the first form create six labels and four text boxes, four buttons and a main menu The label text properties are: Name, Test1, Test2, Test3, Average, High Score The Button text properties are: Average, Clear, Show High and Next There should …  |
| | I need to write a program that reads in a set of test scores from a inputbox then displays them in a list box with a corresponding letter grade. Then from there display the Standard devation, the Mean, and the number of the test scores. I cant seem to get … |
 | Dear fellows , The concept is to split the screen to view all windows at a time .It will allow main screen to be split into two or more sections. It will be helpful for the active program’s window to be resized properly to one part of the screen. Using … |
 | I have a quick question- I have an app that is downloaded a lot and used lots without issues. Recently an officer from the US Forest Service downloaded it, and when he tries to install, he's getting this message box-  I don't believe this is a problem with … |
| | hi guys, I wanted to get a result of a certain field by passing a month and year parameter to access database,the day parameter isn't important.So i used this query and it raised an exception.The record exists but it says there's no data for that column. Any help would be … |
| | Hi guys, I wanted to extract a field from a table by date and two other criterias,but it's giving me an exception. The field that is a long integer data type and i used integer in the code.And the date is also available in the database. Am i missing something? … |
| | Imports System.Windows.Forms Partial Class ExisitingApplication Inherits System.Web.UI.Page Protected Sub btnSearch_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSearch.Click If Me.txtLastN.Text = "" Then Dim erMsg As Windows.Forms.DialogResult = MessageBox.Show("Must enter Last Name.", "Search", MessageBoxButtons.OK) End If 'Define connection string with datasource Dim str As String = ConfigurationManager.ConnectionStrings("SqlDataSource1").ToString 'Define sql … |
 | hi all I have an exercise when I select the value in the combobox will confirm the value on datagridview I wrote a code in combobox of from1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim sQry As String sQry = "SELECT Name FROM dtaStudent" …  |
| | how to load a bitmap image in vb.net using opengl..plz help me.. |
| | hey,I have two buttons Start button and Stop button .I run my program by clicking on start button. I want to stop the program during the start button . But the program will not responde until the start buttun finish its job. How i can do check the stop buttun … |
| | I'm looking to remove an individual NTFS permissions from a folder without removing or affecting the other permissions set on the folder. Is this possible? |
| | I have a textbox and a label bound to the same member via a bindingsource. I would have expected that at some point when the user changes the textbox, the label would be refreshed, yet it is not. What am I missing here? |
 | got an application written in vb.net, contains 2 webbrowsers. is there a way of telling webbrowser2 to navigate to a set url when the postdata is sent from webbrowser1??  |
| | Hi, I wanted to know if I could search for a file in the application's folder, just by checking with the `File.Exists` method. I am searching for a DLL file in the app's directory. Thanks in advance, Yuvjeeth |
 | Dim temp As Translator Using sr As IO.StreamReader = New IO.StreamReader("text.dll") For i As Integer = 0 To 15 trans(i).english = sr.ReadLine trans(i).arabic = sr.ReadLine Next For i As Integer = 1 To 15 For j As Integer = 1 To 16 - i If trans(j - 1).english > trans(j).english …  |
| | I am trying to look through each row in my data table and if a condition is not met, a messagebox appears. (Eventually, instead of the messagebox, I will populate to a DGV. For Each eventRow As DataRow In PFC_Xpress.Tables("EVENT INFO").Rows If eventRow.Item("Incident Type") = "Party" Then For Each personRow … |
| | Hi all, I have a TabControl into which, at runtime, add a tabpage and a control to the tabpage created. I know how to create a tabpage. But I cant figure out a way how to create both at runtime. Thanks in advance, Yuvjeeth |
| | Hi guys, I just faced a silly but annoying problem.I was building a database application with vb.net and access. Things were going great but at the last moment,it started to not work properly.I didn't touch the db path as far as i know but i changed the system date as … |
| | Hello, I wrote a program in vb2010 to assist in the organisation of my music school. It's fairly simple (as am I), uses a text file to store data, and is working fine; however, the various teachers have asked if it is possible for them to update the data when … |
| | I am clueless right now on how I can set the position of a form to open up directly below the parent form, as if the new form is attached directly below it's parent form. The parent form's property is currently set to start at the CenterScreen. I don't like … |
 | Here is a class I wrote to manage the MRU in a VB.Net application am writing. I did not find a build-in class in Visual Studio or on-line that did not look like a pain to use, so I made my own. While I have some 30 years of programming … |
| | Hello all, I have a weird problem. I have created an application in VB.NET 2010 on my PC which runs Windows XP Home Edition SP3. Upon testing my application, I found out that my app does not run on Windows Vista and Windows 7. Just to help, I was searching … |
| | Hi all, Hi i have got a problem with the system i am creating on VB using Microsft Access. I have this error that keeps coming up when I debug my system. I am trying to add data in the database. I cant seem to find the solution to this … |
| | I have to create a program where, by the push of a button, you average as many quiz scores as you want. It has to display the amount of quiz scores you have entered in a fixed3D label and the quiz scores also go in a label. So far, I … |
 | I have in a MySQL database with the column type being DateTime the following time: Timestamp: 9:34:09 9:34:23 9:34:45 9:34:50 9:35:09 9:36:17 But a DataGridView in C# only shows me 9:34 9:34 9:34 9:34 9:35 9:36 Why? |
| | My teacher wants us to make a program that decodes the Vin number of vehicles, I 'm been having problems learning because he doesn't explain much at all about the code and he expects us to already know it by just reading the book, the book isn't very clear or … |
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