20,284 Topics
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 | I need to know if there is any diferences when i create an application that connected with sqlserver for 1 pc or for a local network ?? anyone can help ??  |
| | Hey Guys, Got a question on storing a value from protcted method to a public variable then using that public variable(with value from protcted method) in another protcted method.. My explaination, so I'll show my code. I'm new to coding so pls be easy on me.. You help is appreciate … |
| | I'm fairly new to visual basic. I was trying to make a program that generates code for you, based on whatever the user inputs. But whenever I click generate, I get this error "Invalid CastException was unhandled. Conversion from string "//Generated using MAYAN. Minecr" to type 'Double' is not valid." … |
 | Hi guys, I have a apps that I need your input inorder to improve efficiency, the apps can read a text file (A) and also another text file (B) then spit lines in both files, it can further compare to see if there is any common line using a unique … |
| | How to get the correct and current date and time in vb.net even a user change the computer's system clock? Let's say the correct and current date and time is 7/20/2012 11:00 AM then I change the clock to 7/19/2012 11:00 AM. How to retrieve the original date(7/20/2012) in vb.net? …  |
| | I am usiing the code below to calculate the sum of rows in my datatable with the productcode in the textbox but if the code is not in the datatable I get the error "conversion from dbnull to sting is not valid". How can i trap this error in this … |
| | hello, im sure ive asked this question already but cant find the thread. How do i transfer data from 1 form to another but in a datagrid view. Example: I have data that ive entered in Form2. On Form 1 i have a datagridview box. Wen i press Send on … |
| | I've had this error for today and I don't know how to correct it. Would someone please help me? My program would run but it would freeze for sometime Dim welcomemessage As String = "QUANTITY DESCRIPTION TOTAL" & vbCr Dim totalprice As Integer If Checkbox1.Checked = True Then welcomemessage = …  |
| |  MessageBox.Show("COSTUMER" & vbCrLf & TextBox1.Text & "QUANTITY" & " " & vbCrLf & TextBox2.Text & TextBox3.Text & TextBox4.Text & TextBox5.Text & TextBox6.Text & TextBox7.Text & TextBox8.Text & TextBox9.Text & TextBox10.Text & TextBox11.Text & TextBox12.Text & TextBox13.Text & TextBox14.Text & TextBox15.Text & " " & "Description" & vbCrLf & … |
 | Hi Good Day Guys! Just cant find the answer. I just wanted to ask If there are any way to detect keypress while your application is minimized or not in focused? Thank you very much. |
| | In the following code I need to modify it so that the btnSave control's click event procedure determines whether the user has entered the phone number in the required format: three digits, a hyphen, three digites, a hyphen, and four digits. If not a message should display saying the format … |
| | hello ! i want to connect foxpro db file .dbf and want to show all the records in my grid . i am using vs2008 can anyone give some idea. Regards.  |
| | Is it possible to alter Excel Viewer print settings via VB.NET and, if so, what is the syntax I need to do this? I would like my application to be able to change the printing preferences of an Excel spreadsheet opened in Excel Viewer (through the application via `Process.Start()`). This … |
| | I have a ListView control on a tab page. The backcolor of the items of the ListView are changed according to certain criteria, but whether or not the backcolor changes appears to be pretty random. The tab page containing the ListView is not the default tab page on application startup. … |
 | Hello everyone, im currently stuck because i'm not sure how to start on this part of my program. What i'll need help is controlling another application, my program is suppose to run another application, and be able to hide it, show it, verify that is running, it also needs to … |
| | Dim mm As New SqlClient.SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=Integrated Security=True;Connect Timeout=30;User Instance=True") mm.Open() Dim mm1 As New SqlDataAdapter("select * from Area_type order by Area_name", mm) Dim ds As New DataSet mmm1.Fill(ds) With ComboBox1 .DataSource = ds.Tables(0) .DisplayMember = "Area_name" .ValueMember = "Area_name" .SelectedIndex = 0 End With mm.Close() 'hi i am student and … |
| | Hello can someone give me a code for a program to check your ram and video ram? im pretty sure i have to use eventLog but how is thay going to work? Please help |
| | I'm trying to write a string out to a file using File.AppendAllText, but I need to do it several times over the course of the program. I'm not using threading, and to give the file time to close, I'm letting my program sleep for a couple of seconds after it … |
| | Hi, I'm creating a bookmarks system for my web browser. I'm learning how to use XML files with VB.Net, so my bookmarks are stored in an XML file. When I want to add a new bookmark, the code below works, but it only allows for one bookmark. How can I … |
| | I want users to enter their name into a textbox but i want to ensure that they type in something so my program will continue the name into another form by a button. How do foolproof this while clicking the button won't automatically send nothing to the other form and …  |
| | Hi first of all am new to progarmming. Am using using combo box control in vb.net combo box getting filled properly Public Sub new_entry_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim cn As New SqlClient.SqlConnection("Data Source=KAU-4A76A124FB9;Initial Catalog=SRRY;Integrated Security=True") cn.Open() Dim adp As New SqlDataAdapter("select * from Bank_Details … |
| | Hi im doing a application tool which will check for spoof email headers. now i want to do some comparison of text in textbox can anyone help me in this? thank you |
| | Greetings, Guys could you give me some idea on how to count months left before the due date? For example 08/17/2012 - 12/17/2012 result: 4 |
| | I have a dataset with the following data: account_number,master_code,score 100000023,UL189PU,1 100000025,UK120PU,1 100000026,AAL004PU,1 100000026,UL221PU,1 100000026,YHL003PU,1 100000034,UL246PP,1 100000043,1198112CS,1 100000060,182112JS,1 100000060,996211CS,1 100000060,AAL012PU,1 100000074,UI136PU,1 100000074,UK131PU,1 100000074,UL178SU,2 I've started a master loop where I loop through the accounts. I now need to do a sub loop and compare this account to the rest of the …  |
| | Good day guys! I am recently developing an attendance monitoring system using a webcam. I have successfully downloaded some sample programs how to make a webcam application in vb.net primarily using avicap. I tried to apply it on my program. The code seems fine but everytime i run the code, … |
| | how to disable a button with another button in another form that hasn't been opened yet in visual basic 2008? |
| | i have a form from all costumers and i also have all payments now i need a sum field for all payments from a DataGridView |
| | Public Class Form1 Private Sub CheckBox1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Checkbox1.CheckedChanged If Checkbox1.Checked Then TextBox2.Visible = True Else TextBox2.Visible = False End Sub Private Sub CheckBox2_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox2.CheckedChanged If CheckBox2.Checked Then TextBox3.Visible = True Else TextBox3.Visible = False End … |
| | Hi, ok i had a file looking like this: SilkroadR,,321,13,321,Gobi,False,False,False,False,False SilkroadR,,321,321321,321,Gobi,False,False,False,False,False SilkroadR,,213,321,231,Gobi,False,False,False,False,False SilkroadR,,3251325,3215,3251,Gobi,False,False,False,False,False SilkroadR,,,,,Gobi,False,False,False,False,False I encrypted it and it looks like this: Hdgr6oHm47q2SC5AEjqUY9Boi5WfUT5FTfLvMVYLtorgmufM5GiH6wMg12raZ/YpW/OPZ7bL94wbSWiauy59nrEHlJdO3o1voedaWb/XV7lxNzbUURqDgGtkpr6Ex++d0YAA4sCnkB/GcDtuFd+vqF2IJoI3cC+WKPF73zM5eNz6mJd1hjZK+40je7/LbUyU7JQ8nmvBpEy7J391xM5X5dfKlNziYahufdVsxbO8mTAosQcEZ8JtUoJg2ZWjXO8nPqDci8iy/JgBYnd8Z4fpbfwY5jKwTrq2+TW9k/+I2F9PXUT6OzUUTk4tRFfvWVXBFj/C5s60puxaYJQxgzUzKE2yWls4N3qk3TcZBH1kKCB8h0lS69X77mOxJ0ixkOm1a+deaIWXsBfFHq8ej30ShH2WFf09iAr3 Ok, thats what i wanted, i used to load my accounts like how it looked before the encrypting with this code: Dim iCount As Integer = CInt("0") … |
| | Hi there, Does anyone knows ho to create an appointment in outlook using VB.net ? thanks :rolleyes: |
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