19,729 Topics
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 | Hi Dw. I have a timer that in every 600 interval access the database and the database I'm using is MS Access database. The problem I have is that with this being said, the MS Access database has a limitation of 64 connections on each thread so this 600 interval …  |
| | Hi all, 1. My **DataGridview** is populated and displays the data correctly. No Problem here. 2. I use the **Up/Down Key** to navigate in the *DataGridview* and the rows get highlighted when I pass over them. No problem here. ***This is what I would like to code if posible:*** 3. … |
| | hello every one this my code to fill my combobox with the name of clients and i but the connection string in a module to let my prog workimg in any pc in the group But the problem here in the combobox says can not make the connection, I know …  |
 | hi to all, i have an menustrip in the form MAIN i want to load menustripitems as per the user permission given in the tbluser database table which load during form load event in datagridview DataAdapter1 = New SqlDataAdapter("Select * From tbluser WHERE userID = '" & txtuserid.Text & "' … |
 | Group, I can't seem to append multiple files into one text file. Unfortunately it's creating the first file but is not creating or appending the additional files into the first file. My code looks like this: getRestranName = System.IO.Directory.GetFiles(folderName) Dim counter As Integer = My.Computer.FileSystem.GetFiles(folderName).Count fileCount = Convert.ToInt32(counter) fileCount = … |
| | hello every one i made a Simple sales program by vb with tables sql I have worked and use the following to connect with data con.ConnectionString = "Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename= C:\Users\hany_\Documents\Visual Studio 2015\Projects\hanysql\hanysql\Database5.mdf;Integrated Security=True" Now, after the completion of the program I want to know what is the way to run … |
| | As I dig deeper into the capabilities of Visual Studio, I have seen that you can have multiple projects in a single solution. I must be missing something because I can't come up with a reason to ever do this? My guess is that I don't understand the benefit. So, … |
| | cmd = New SqlCommand("INSERT INTO temp_balance ( debit, credit, accname ) SELECT Sum(temp_sheet.debit) AS debit, Sum(temp_sheet.credit) AS credit, IIf (debit < credit ,'loss','profit') AS expr1 FROM temp_sheet group by temp_sheet.debit,temp_sheet.credit ;", con) there an error i dont know the error incorrect syntax near ' ) |
| | I have a problem that I am really having a hard time with. I have a textbox in my form that I am trying to add into autocomplete so when I get back into that form I can just type the first letter and have it populate. I have a … |
 | I want to insert a table cell into a table from another table by select method and after, to display an error in text prompted from the user was not found. Can someone tell what's the problem with my codes? My codes are as follows: Dim Item As String = … |
| | Hey guys, does anyone know how to do this? Here is my current code that will not work. I have tried everything that I know how to make this work to no avail. This is under form1_load. Any help would be awesome. Thanks in advance. |
| | Hi everyone! Long story short; I got a Secugen Hamster IV finger print device. I want to use it in my hospital application to be used in identification of patients at the hosptl. However, I do not find this device to be useful in that they they dont' have current … |
| | bonjour tous les monds, how can i Refresh ComboBox After Adding New Values via a Seperate Form in vbnet any ideas mercie en avance ; |
| | Hi, Having a real trouble getting a form to launch, which has previously worked. I have a series of buttons set up on a menu screen, each button launches a different form in the same project. For each 'click' event there are two lines of code: a DIM statement to …  |
| | I have been searching all over for a way to open a text file that was created using vb.net on one form and open that same text file and place the contents into a list view. The text file will have a description, a part number, and a quantity, this … |
| | Hi Dw. I have a MS Access database that has 9 columns what I want to do is to retrieve all data from a database only on 5 columns. I think I have to use the `select * from data` but I don't know how to select the columns I … |
| | Can you guys help me how to make this happen? I want to have a row validation for adding of items. I have a datagridview named **datagridview1** with columns **dgvTxtItemCode, dgvTxtItemDesc** and so on. I want to add a validation wherein whenever inputted the same itemcode or item desc a … |
| | Hello. I wanted to remove a key in registry using only VB.NET code and i do not know how. Can you please help me ? |
| | Hey I need help from danniweb . I try some codes according to my knowledge to make this code. I load some valuse to data grid view from mysql table. Think there are 10 records loaded to data grid view. Then just I want to make 10 records to generate …  |
| | Hello everyone, I've looked in several forums but can't find an answer. In excel I want to place a picture in a cell, that's no problem. Then, I want to display that picture in the header with VBA code. I know vba can link to a directory to display a … |
| | I'm just trying to connect vb.net application to my cpanel web host space's mysql database. I got some idea from internet and tryied. But It doesn't work for me. If you know about this help me. I think it was great help for others too. my whole code is this … |
| | Hi Ive got 3 listboxs In Listbox 1 I have a list of names, listbox2 a list of days. These lists have been put into arrays _names & _days. What Im trying to do is join the 2 lists with a delimiter of "-" then display the joined lists in … |
| | hi i currently facing this prblem" the connection was not closed. the connection's current state is open" how to solve it Imports System.Data.OleDb Public Class frmOrderSummary Dim con As OleDbConnection Dim selected_Row As Integer Dim selected_ID As String Dim order_id, food_id, orderdate, quantity, food_name As String Const CONNECTION_STR As String … |
| | imports system.data.sqlclient mysqlconn = New SqlConnection mysqlconn.ConnectionString = "Data Source=" + txtServerName.Text + ";initial catalog=" + txtdatabasename.Text + ";initial catalog=" + txtshardacc.Text + ";user id=" + textusername.Text + ";password=" + txtpassword.Text Dim queryresult As Integer Try mysqlconn.Open() command = New SqlCommand("select COUNT (*) as numRows from _Char Where CharName16='" & …  |
| | How to make picturebox from form to picturebox rdlc reportviewer vb.net Imports Microsoft.Reporting.WinForms Public Class BCPrint Private Sub BCPrint_Load(sender As Object, e As EventArgs) Handles MyBase.Load 'TODO: This line of code loads data into the 'PNJKDCDataSet.tbl_Pat_Image' table. You can move, or remove it, as needed. Me.tbl_Pat_ImageTableAdapter.Fill(Me.PNJKDCDataSet.tbl_Pat_Image) 'TODO: This line of … |
| | I'm new to vb and therefor I can't find where is the error while I'm making reports. I coded My report button like this : Dim adapter As New MySqlDataAdapter Dim ds As New DataSet1 adapter.SelectCommand = New MySqlCommand("Select * from mcs.custormer", Form1.mysqlcon) adapter.Fill(ds.Tables(0)) ReportViewer1.ProcessingMode = Microsoft.Reporting.WinForms.ProcessingMode.Local ReportViewer1.LocalReport.ReportPath = System.Environment.CurrentDirectory … |
| | Hi Dw. I'm trying to read a text file. This text file has a multiply lines and what I want is that I want to separate each line or should I say I want to split each line (chop it) so that I will be able to assign these fields … |
| | Hi friends, Please I am writing an app that is meant to work like WhatsApp. When a user type some text, he clicks a send button. The clicking sends the text to a central database. There is a timer that is checking for unread messages and display them in a … |
| | What is the code for adding/multiplying numbers as per quantity and rate? |
| | At the bottom is my code and I want to save data on my joined table. Please advise or edit the codes. Thanks :D 'VB.net Public Class RadTechLP Private Sub RadTechLP_Load(sender As Object, e As EventArgs) Handles MyBase.Load 'TODO: This line of code loads data into the 'PNJKDataSet.Procedure1' table. You …  |
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