20,285 Topics
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 | hi everybody, i wish everything is okey? my question is how i can the value of textbox show on colums in datagridview , my textbox read data from DB ?? thx before...  |
| | Hi, I am displaying the values in Datagrid using VB.Net , SQL, i places add button below the grid , i want to add a new row when i click that button, i tried but didnt work can you assist? |
 | Hello to everyone, Im a beginner in vb.net and currently Im developing a "reminder" program, the user inserts a task that he as to do, the date and the time to be remimbered! Im saving the task in a txt file like this, "Make dinner,Reminder,24-07-2012 18:31:00", but line by line, … |
| | I am using VB2008 fr my project , I am having an error while inserting data in the sales form The error is;:__ "Number of query values and destination fields are not the same". Here is my code-: Dim sql As String sql = "insert into sales (SalesId ,PropertyNo, SellerNo, … |
| | Private Sub DataGridView1_SelectionChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DataGridView1.SelectionChanged Dim con As New SqlClient.SqlConnection("data source=GOLDA2\GOLDA;initial catalog=school;Integrated Security=True") Dim sql As String = "Select * from fees where particulars=" & "'DataGridView1.Rows(0).Cells(1).Value'" & "" Dim dataadapter As New SqlDataAdapter(sql, con) Dim ds As New DataSet() con.Open() dataadapter.Fill(ds, "fees") con.Close() …  |
| | How to pass values from textbox to datagridview in VB 2008???? |
| | This Is my Question : Using loop statement, write a VB .NET program that prompts an integer in the range of 1 to 10 (both inclusive) from the user in an input box, and prints a multiplication table of the integer entered. For example, when the user enters 8, your … |
| | Hey guys, when i doing my VB, i get stuck on the try catch end try...i dono where should i put the try catch end try for the question..this is my question Using loop statement, write a VB .NET program that prompts TWENTY (20) integers in the range of 1 … |
| | I am trying to read through a text file and pull out bits of information I need. I have it 1/2 working but need to figure out how to loop through it to get the other 1/2 Sample log file '-------------------------------------------------------------------------------------------------------------- [01:32:18.281] [@Flos'tok] [@Flos'tok] [Force Valor {875503313485824}] [ApplyEffect {836045448945477}: Force …  |
| | i use the properites IsIdentity in my sql server table, when i use the datagridview its show a negative value , my question is how to set the value to positive value ??? |
| | I just want to know what WMI class should I use to get the Name,Socket,BrandName,Manufacturer and Total Size of my Memory. |
| | I have a textbox and 3 comboboxes in my form, what i need from this is when the user enter a value in text box (I checked if the value exist on my database or not) i need other query to returned and fill my 3 comboxes in all record … |
| | I have created a table in my access and i have inserted values in it. I also created a login page on my vb.net form in which i want a matcching field in the table to serve as my UserId and Password to allow user access the next form. I … |
| | hey, guys, was wondering if i could get some help with this school assingmnet. no, im not asking for code. more like guidance and clarification. the following is the assignment itself: *You are required to create a Visual Basic application for the Roytec Examinations Department. The program must accept student … |
 | hello ! i am working on a simple parental lock application . i want to know all the websites visited by the user , i mean , for example now i am visiting daniweb.com , is there is any way to get the name of daniweb.com and after getting it … |
| | I have "binded" my Access database to the Datagridview in my form. I have added an event for double mouse click in datagridview row header. private void dataGridView1_RowHeaderMouseDoubleClick(object sender, DataGridViewCellMouseEventArgs e) { foreach (DataGridViewRow item in this.dataGridView1.SelectedRows) dataGridView1.Rows.RemoveAt(item.Index); this.Validate(); this.firearmBindingSource.EndEdit(); this.firearmTableAdapter.Update(this.firearmsDataSet.Firearm); } This code works(removes both view and source) on …  |
 | I'm not sure how to tackle this problem. I have an app that has a range of numbers, like D100100 to D100200. Right now, it's all done with a text file, and what needs to happen is each document needs it's own number in sequence. They are DUI Citations. So, … |
| | **Hello Guys... I am building an application in which there are 3 radio buttons. And i want to add password authentication on one of the radio button. So, I have inserted an Input box in my code and ask for the password from the user, Its working fine if we … |
| | Hello, I am trying to place data from a text file into an array and then sort it by date and finally display it in a text box. The part I am stuck on is sorting the data by date. As I do not want to confuse anyone trying to … |
| | Hello to everyone, Im new to vb.net and right now I am developing a program that its like a agenda where the user sets the date and the time do be remembered of the task the he has to do. Im storing the tasks in a txt file. The part … |
 | I need to start my VB.NET app through a batch file and pass an argument to it. The app uses the argument (a dated directory;Ex: 20120530) to process the data files there, output a CSV and a Log file and then close the app. The app does not need any … |
| | I am working in school projet. I have made a database and also search from database, everything is fine... But I want to know how in search I can retrive exact parameter. eg: suppose in TaxtBox1.Text = "VI" then the search result must come "VI" only not "VII"/"VIII" Kindly help |
| | Hi Alls, I'm need your help regarding this issues. What i'm try to do is when updating or insert command done,the color will follow. like below :- if dr.true then fcmd.executenonquery listbox1.items.add ("Good") Listbox1.forecolor = color.green else gcmd.executenonquery listbox1.items.add("Bad") Listbox1.forecolor = color.red end if but unfortunately when the color cahnge … |
| | Hi guys I came to a dead end writing a program for one of my friends, I cant seem to get data in my datagridview to show in my textbox. can anyone please assist? I need to make a invoice in the multiline textbox with data in my datagrid view … |
| | Hi I'm a final year university student and i'm running into a bit of trouble with my final year project (It's very important) My task is to create a DBA (Database Administration) tool in visual basic to allow me to add/edit/delete users from an existing oracle(sql) database. I really don't … |
| | Hello i'm trying to make a text editor but i cant find codes for Save button....someone please give me? I searched on google but no luck (like always) |
| | Hello, I basicaly not familiar with vb.net because I'm new to it but I need help for my assingment P.O.S System but I can't fin a way to deduct the amount that you want to remove from the list. I always have this eror and I don't know if the … |
| | **I am facing some problem in updating ms access with parameters. I succeeded to insert the data in access with parameters. My code for inserting the data is:** Dim dbPath As String = "C:\Users\Abhishek\Documents\ToolDatabase.mdb" Dim connStr As String ="Provider=Microsoft.Jet.OLEDB.4.0;" _ & "Data Source=" & dbPath & ";Jet OLEDB:Database Password=agupt80;" Using … |
| | is it possible in vb.net to save automatically records in mysql database during brownout or power supply loss? I want to develop an application in vb.net that is able to save records automatically when there is a power failure. I need ideas. Thank you. |
| | i need a code for making a tabbed browser please help me ! just give me instructions on hol to duplochase the browser windo and how to make the back,next buttons to work for the selected tab. thank you. |
| | hi. i have a panel in a form and a button. iwant to write a program that when i push the button,a circle be drawn in panel but problem is here. because the handler in button is eventArgs but the panel is paintEventArgs. can someone give me a suggestion for … |
| | 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 … |
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