20,278 Topics
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| | i have two combobox and i have two database table in sql server 1st table name is Province and 2nd table name is City if i select province in my 1st combobox then show all cities against selected province show in the 2nd combobox when we click on combobox dropdown … |
 | All of my search attempts on here and the Internet at large have resulted in discussions on how to DISABLE parent form's while a particular child is open. But my project seems to be doing that itself just fine. I do not want it to and I am not sure … |
| | Im writing a software in vb but I need to know, is there any better library than OpenCV? |
| | Dear forum , i am facing a problem when i try to populate my combobox item from a dropdownlist in html. my code is the following which executes witount errors: Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click Dim I As Integer = 0 Dim NAME As String … |
 | Hi group, I'm attempting to create and write to an Excel spreadsheet with data from a text file. The code is meant to parse each line of the text and place the data into individual variables. I then need to place these variables into the appropriate cells on this newly … |
| | Am having a little problem with importing data from MS SQL to and Excel sheet. I followed previous answers on daniweb, but they couldn't help me out. Here my code. Private Sub btnExcel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExcel.Click Dim appXL As New Microsoft.Office.Interop.Excel.Application Dim shXL As …  |
| | Hello Group, I'm attempting to create and write to an Excel file. I'm sure I've hit the first of many snags. Hopefully you can point me in the right direction. In this first attempt, I'm getting an error code: "Invalid index. (Exception from HRESULT: 0x8002000B (DISP_E_BADINDEX))". The error is attached … |
| | hi i'm struggling to read data from database i created a table with 5 rows as for Login form username and password i would like to have access to forms when i enter password and username of department 1 it shows department 1 but when i enter password and username … |
| | Dear forum members, i a m trying to export the contents of datagrid to excel but i am facing errors.After searching i have seen that the problems occurs because one of my columns is of type TIME and taht is why i am getting the error : Object reference not … |
| | Hi guys! I'm getting frustrated with my code because my filter in my query is not working. All of the item_model in my receiving_details table were being suggested in auto complete but as you can see in my query that I'm filtering item model with a certain form_no. Please help … |
 | hello guys please help me , i make a project of window form appliction , but work well on my own pc , but if i copy full project and run on other computer it not work. Any body knows the solution of this . please tell me , iam …  |
| | Recently Im trying to make a software who can detect multiple faces in the some time. but not only faces. Eyes, Nose, mouth. saw some vids in youtube but they show no code or how to do it, more the finished project. What Im currently trying to do is, the … |
| | Hi to all vb.net community! In my application,the user may be required to install SQLExpress2008WT. The User Interface is as attached. The following steps are performed. a) Browse button browses the .exe file path (via a file dialog) and displays it. b) The Installation button does what it says, in …  |
| | about current developers experiences. I had to learn vba for work, and since I am gaining familiarity with VBA, I was interested in getting active VB.net developers opinions on is vb.net a logical next step for someone who is interested in gaining experience in programming? I confess that I don't … |
| | Good day! I just want a little help on how to loop from one cell to the end and set a sum Formula. I have Columns From **F to O **and created a Sum formula for column F. Is there a way to make it in a loop and pass …  |
| | In vb.net application , I open the form2 from form1 by btn event with following code. But if the user minimise it and again open it from the button event, there are 2 forms in the taskbar... I want the same form2 is opened everytime without multiplication of forms in … |
| | I have put digital signature as picturebox in vb.net form To print the picturebox, i used following code. But the print of signature is very light in color. How can i improve the or darken the signature. The code in print document event is E.graphics.DrawImage(Me.PictureBox1.Image,50,100,100,50)  |
| | I have vb.net application. I have following code to print dgv. but when i print, all the page get printed. How can I print selected pages to be printed with pagesetup. Public Class Form2 Dim mRow As Integer = 0 Dim newpage As Boolean = True Private Sub Button1_Click(ByVal sender … |
| | please I want to send records in datagridbiew 1 to another datagridview2 is like if a user click on a button it Shud be able to send maybe 5 records in datagridview1 to datagridview2 at the Same time please I need your help. |
| | Good day! I have the following sub-query that generates payroll report by a given date with format **(dd/MM/yyyy)** but I do not know why MSAccess **automatically changed it to (MM/dd/yyyy)** thus I am getting incorrect data. My regional date settings in **control panel is set to (dd/MM/yyyy)** format as well … |
| | do one know , how find yahoo Username Availability in vb.net How to check a Yahoo! ID for availability before sign up for a new e-mail account . |
| | Greetings everyone! I have some codes in my application which makes a backup of mysql database and save the backup .sql file to a location on the hard disk. I made the code in like 2013/early 2014, I think I was then using a now older version of mysql, it … |
| | Private Sub RetrieveButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RetrieveButton.Click conn = New MySqlConnection conn.ConnectionString = "server=127.0.0.1; Port=3306; user id=root; password=; database=bsit3d" Dim READER As MySqlDataReader Dim Command As New MySqlCommand conn.Open() Dim Query As String Query = "select * from bsit3d.form where username= '" & username.Text & … |
| | Hi Dw. I know how to kill or stop a process using VB.NET. But how about temporary blocking a process from performing a task? Suppose I have a docx file located at "D:\test\" and I happen to open this file and modify it either by adding something or delete some … |
 | 'database connection class file '------------------------------------------------------- Imports Oracle.DataAccess.Client Imports System.Data Public Class DataBaseConnection Private con As New OracleConnection ReadOnly Property connection() As OracleConnection Get Return con End Get End Property Sub New() con.ConnectionString = System.Configuration.ConfigurationManager.AppSettings("DBconnection") con.Open() End Sub Sub closeConnection() con.Close() con.Dispose() End Sub End Class '////////////////////////////////////// 'staff class file '-------------------------------------- …  |
| | HELLO, i want to ask,how to import a lot of csv file into mysql database using vb.net? |
| |  first take a look at attachment pic to get a idea. I have two dropDownLists.1st dropDownList ID is cboPrev(oPrev) and 2nd dropDownList ID is cboNext(oNext). These both DropDownList will have the following 4 items (2014, 2015, 2016, 2017). User can click on dropdownlist and pick a year. # … |
| | In vb.net application I have Form1 & Form2. When user enter data and save it by btnsave event in form1, the Form2 should show msgbox "New entry" in form2 while its still open. How can set this event? |
 | Hey guys, I have this program that I'm making and there's a video playing and when the video is at a certain time it changes the desktop background. It all works but there's one feature I'm missing and it's that I want my desktop background to be on the Fill …  |
| | Hi Dw. I'm doing a research on how or whether VB.NET has some sort of support to listen to Windows OS events and be able to take over to be the core respond to certain events raised by an OS such as Copying/Moving of file(s) to other locations. What I … |
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