20,285 Topics
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 | **Features:** * Retrieves the differentiating bit of a key with respect to the previous one and stores only this position in the index. * With at most one single disk read, assuming the index is in memory, it determines whether the key exists or not. * The index is always … |
| | Hello clever people, Completely new to VB.NET (only installed Visual Studio 2019 in the past couple of days). To start all I want to do is open Excel (office 365) from a button on a userform. The location of the file is on a network, lets say: - \\file-svr01\Rozel\Design\Parts\PNG.xlsx OR … |
| | What are the key components of ServiceNow Managed Services?  |
 | Hi DW, I'm trying to automate using NAVIS, I tried using post method simulating how it does on a web browser but I get error 678 then now I'm trying to access it using vb.net web browser.It does load but the issue is that I can't set the input elements … |
| | good day - I am wondering if anyone can explain to me how to allow the user to change the name of the tabs in a tab control via a textbox? For example, at runtime the user will be able to change the title of the tab ("TabPage1") to "Baking" …  |
 | Hi, a pleasant day to all. I just wanna ask if it is possible to search any string or keyword inside my Access Database using the search in my VB.net application? Most of the tutorials only teach on how to search the table using an exact keyword or input. Example: … |
| | Hi Dw I'm doing a scanning program and now the problem is that there are some files and folders which the program can't access because of access denial and it just produce an error and don't continue with the scan so now I want to know how can I skip … |
| | I have chart showing daily closing price of share for last 20 days. There is no closing price for Saturday and Sunday . However chart is showing blank space for these days i.e. total 29 days interval i do not want blank spaces but only 20 columns. Not getting how … |
| | Greetings, I'm having an issue, I want to set my form to display at the very top right hand side corner of a screen, I've achieved this in vb.net using this code `Location = New Point(Screen.PrimaryScreen.WorkingArea.Width - Width, 0)` Does anyone know how I can do this in VC++?  |
| | Hi, Am using VB.NET. I have a search page in one form(Search.vb) and another form(Form1.vb) to display the details of selected data from the search form. I already have back button in Form1.vb which returns to some other form say (Action.vb). In case of searching data it returns to Form1 … |
| | I found some code on the web a while back. But I don't know who wrote it. The code below looks for worksheet names in a excel file. I am not familiar with C++ (and do little to nothing with binary files). Can someone help me convert the code below … |
| | I have a parameter in a RDLC report named "allocated_jobs" There are no Available Values assigned. It has 1 Specify Values: RTrim(Allocated = "True") ie; Only rows with field name Allocated and it's contents equal "True" are to be in the report. Me.JobsDataReportViewer.LocalReport.ReportEmbeddedResource = "Data_Reporting.JobsList.rdlc" *Data_Reporting is the stored report … |
 | heres my RayCasting code on VB2010(it can be another programming language, i will get the same bug): Private Function GetPositionMap(ByVal Position As Double) As Integer Return fix(Position / ObjectSize) End Function Private Sub DrawRays() Dim StepX As Double Dim StepY As Double Dim VertX As Double Dim VertY As Double … |
| | these is the VB6 function for RayCasting: Private Sub DrawRays() Dim StepX As Double Dim StepY As Double Dim VertX As Double Dim VertY As Double Dim HorizX As Double Dim HorizY As Double Dim MapX As Long Dim MapY As Long Dim HorizDist As Double Dim VertDist As Double … |
| | How use and declare CopyMemory() API function VB2010? |
 | The server threw an exception. (Exception from HRESULT: 0x80010105 (RPC_E_SERVERFAULT)) My Code is Private Function GetXlUsedRange(ByVal filePath As String) As Object(,) Dim xlApp As Excel.Application Dim xlWorkbooks As Excel.Workbooks Dim xlWorkbook As Excel.Workbook Dim xlSheets As Excel.Sheets Dim xlWorkSheet As Excel.Worksheet Dim xlRange As Excel.Range xlApp = New Excel.Application xlWorkbooks …  |
| | how to convert from vb.net to C# ?  |
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| | Hello I want to print some data that appear in Form. I print some data( image, labels....) then at point y = 415, I will print all rows of datagridview, at here all is right, but when i want to print rows that need more page, i had wrong result, … |
| | Hi, My Crystal Report is using VB.NET and Sql server 2005. The report can be displayed but everytime it will prompt me to key in the Username n Password.. is there anyway to automatically pass the login information to reports? thanks =)  |
| | I wonder if there is any solution to drop an oracle table trigger using c# windows application project |
| | I need some help from the IT gurus on this forum. I'm having trouble with my MS Windows menu's Edit menu item. What I'm trying to do is enable or disable the Cut menu item depending on whether the selectionlength of my textbox's text is zero or greater than zero. … |
 | HELLO ALL ! I am new here and a Lerner,beginner. I need help from you all great mind in my project that i have a datatable dt. i retrieve data from sql to a data table named dt in vb.net. now i want to write result in notepad where user …  |
| | I am using visual basic dot net, with the asp.net add on. I have created a programme which works great, basically it has a logon, which uses mysql for the data, then loads a 2nd page using the username data. I am using the global variable to store the username … |
 | Hi friends I want to refresh my combo box . i have even used the combobox.refresh() syntax but it does nothing! need help |
 | Hello, i have an excel-file whith 2 sheets. There are much columns, but I need only a few of them. I want to delete some columns by name. I found this code but, I don´t know why it doesn´t work!?!? It tells me ".UsedRange" is wrong. Can you help me, …  |
| | You may be familiar with apps such as Time Watcher. I'm looking forward to creating an application to be used on students' computers to control the amount of time one can be on a computer. When a student is given a computer, she will be allocated say 30 mins, a …  |
 | VB.Net never meant for games! it's more recommended for software developement, but hey why not have some fun. If anyone out there is looking to create an Angry Birds Game-like or a Simulator for throwing an object, you've come to the right place, this code will give you great start/push … |
| | I'm trying to make the picturebox collide with the others. I tried to do several things but they don't work. I spoke to my teacher and he said I should do something like this: PictureBox1.Left + PictureBox1.Width >= PictureBox2.Left And PictureBox1.Top + PictureBox1.Height >= PictureBox2.Top And PictureBox1.Top <= PictureBox2.Top + … |
| | How to using special character "[""]" to get value of cell datagriview. Like this [column name], and then the value will be show in the textboxt. Please help |
| | hi, I have a Visual Basic program run the memory game. it basically will let the user click on 2 cards, and then they flip, if they're the same, they disappear, if not, they turn back. So my program will look like there are 3 pair of images under the … |
 | Work with visual basic 2019 and Mysql database Save and edit record with a imge in picturebox is ok but when i scroll the datagrid i get a datagrid error so i can not show the picture when i scroll picturebox1.image blocking my program |
| | Please can I use my normal computer camera to scan and decode a Qr code? |
| | Hello, I have a typical login page in vb.net (Asp.net). It checks a sql table for a user/pw. If admin1 user they get directed to admin page. if not, they go to basic users page. I put this below code in my web.config page in the testlogin folder. (which I … |
| | I want to filter the datagridview on Search button click,i am using 3-tier architecture,the grid should be updated with the search result |
| | how can i configure ip address, submask, getway, DNS1 and also DNS2 please help me i use this code but DNS not added what is the actual code for add all with DNS1 &2 Please help me Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click Button2_Click(sender, …  |
| | Hi, did anyone know how to send email using vb.net without username and password of user, for example it can detect current user crediantials of email(outlook). Most of the google example is using username and password. Please help  |
| | Good day every body. I want to develop a database program that will be used in school to input information about students and all the staff of the school. I want the program to be able to retrieve any required information and also display the total number of students in …  |
| | I have a question about encryption. So I have a code sample that has a key size being chosen, something like 32 bits or something, and I am basically either filling the key size buffer with the password and then zeroes, or null bytes, or a word repeated over and …  |
| | ciao a tutti, qualcuno mi può dare una mano...vorrei fare un form con un pulsante che al click inserisce i dati in un db access, avrei bisogno del codice per la connessione al db, e lo statement per il pulsante grazie |
| | My code is this. Dim strSQL As String, strSQL2 As String Dim db As Connection, rst As ADODB.Recordset Set db = New Connection db.CursorLocation = adUseClient db.Open "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=C:\River Syde RMS\RiverSyde.mdb;" strSQL = "SHAPE {SELECT * FROM Sales where Date1=#" & DTPicker3.Value & "#" Set rst = New ADODB.Recordset If … |
| | I have an application that opens up Excel, reads some information, then closes Excel. I developed this application using Microsoft Office XP 2007. A few weeks ago, my company upgraded to Microsoft Office 2010. The applications still works fine, but I can not compile in VS 2008 anymore. I get … |
| | Is there anyone to answer to? I wanted to get the property value of my user control by a dialog box. Friends, I need help. Thank you all See also the attached file.  |
| | Hey guys I managed to get some code what works fine but it uses console application I have tried to convert it by hand and change things around to get it to work but with no avail! I'm certain it should be simple but I may be wrong :( Thanks …  |
| | Hello everyone, I wrote data arrays at the end of the exe with delimiter. After I compiled, the app it didn't work on Chinese Windows, only on English, I want to configure the app to work on Chinese windows as well, I know it will work if I change the … |
 | Yes I finally decided to continue on with my programming efforts. I would like to be able to refer to myself as a master programmer, but I may not have that much time, after all I am almost 80 years old. Right now I'm delving into C++ and finding it … |
| | I need help on how to calculate the total work hours in a 12 hour format. I have a database that has the columns for the time in and time out as well as the total hours. Try If txtSCANRFID.Text = "" Then Else reloadtxt("SELECT * FROM students WHERE RFIDNumber= …  |
 | Hi everyone I have a problem when I run the vb.net program on VS2010 the following error appears: Error while trying to run project: Unable to start program 'G:\TREEVIEW_uc_cr\bin\debug\Treeview_UC.exe' Please help in solving this problem. Thank for advance |
| | So I'm new to programming and currently, I'm creating a school project with Visual Basic and .NET, I know that I might either have a problem with formatting or converting or assigning a value(which I don't know how to do) but whatever I try the multiplied result always gives me … |
| | Hey can someone please tell me how to assign keys to buttons, I tried with a code but it only works once or it only works when I have to press the button on the screen and then use the key but it only works once Can someone please help … |
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