Ok I have a search Button that will search through a student table and produce the grades of all the stdents in a class room when I enter the class room number into a textbox(txtclass.Text). The results will be displayed in a DataGridView and also I have the average grade of the class displayed in another textbox(marks.Text).
My program runs fine but I would like to add more code so that If I enter a wrong classrom number into the search textbox and Search for it then I would like a messagebox to pop up and say that the classrom you have entered does not exist. .I have tried different if statements but none has worked for me so far.
I have created a class called Student, with five private variables: [code] My main form is divided into a number of different sub procedures. In one of them, I used a streamreader to take the first name, last name, and phone numbers of a list of records in a text file called PersonalInfo.txt. It seems to work just fine. [code] I have another, separate sub procedure in which I read a different text file containing the "averages" for the students. The first average from Averages.txt belongs with the first student in PersonalInfo.txt. The second average goes with the second student.. How do I add the student average information to the properties of the student records created in the previous sub procedure? [code] I realize why this wouldn't work, but I can't figure out how I could use my counter to reference a specific student.
1- How to delete & update any record in the DataBase in vb.net? 2- How to make search & advance search about any record in the DataBase in vb.net by date,ID ........etc?
I've tried a few different methods I could find in order to connect my VB .NET program to a book store's database. While I've been able to connect to it and display the contents of its tables in a DataGrid, I need to be able to search the tables and display specific records, depending on the contents of appropriate the adjacent text boxes.[code]This is a code I've used for a very similar process, just really aims to search a different field in the table. If this is easier to adapt into a code that allows searching and producing specific records in a database, please use this one.
I have a form that reads the data from the database table ( so you can see I have figured out how to attach to a databse table)On the form I can scroll through the data with use of the binding navigator that VB automaticly installed on the form, but I need to search the table for specific data in one field.I am guessing that one way is to use a query, but I can't figure out how to use one.I realize that this may be real simple, but because I am just learning VB, I don't know where to start.
I'm trying to write code that allows a search for a particular record in a data table. The table, imported from an access database has 4 columns, the first being names of cities. I need to search for a particular city and have it display the city name and the other three columns of data for that row in particular text boxes. Here is my code...it is the last sub routine that is the problem...I'm tying myself in noob-ish knots trying to figure out nested loops etc to search... (I've commented some of it out whilst I tried to figure it out but I'm running out of time and patience and my knowledge of VB is limited!!)
I need to search a keyword put in a text box. In my case, I want to search records by the month name. I would want a command button that displays results according to the keyword typed in a text box. Now I tried two methods, one with a text box, one with a query. Both Do search, but the fields return empty.
Heres the code for my form where the datagrid is: vb.net Public Class Form6 Private Sub Pay_CalculatorBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Pay_CalculatorBindingNavigatorSaveItem.Click Me.Validate() [Code] .....
I want to display summaries of data entered, by criteria, like by department, by month, by year etc. How do I do that one? I have vb 2010 express.
I am coding on Visual Basic 2010 and need some My Access database table has following information:
FirstName LastName PhoneNumber
Basically what I am trying to do is create a Search function where the user will enter a First and Last Name in the search boxes and upon hitting the ''Search'' button the program will look through the database and check if the records exists.
If the record does exist then I want the Phone number to appear in a separate textbox which is named txtPhoneN. I have included the code I use to connect to the Database. I have already managed code the part to Add new record to the database.
In general Combo Box looks for the strings in the list that Start with the text that typed in the textbox portion of combo box.
I want a feature in combo box which do not just look in the starting of the strings, insted they shold search the maching strings within any part of records i.e. If User types 'Ja' in textbox portion, the the list should show following maches with highlighting the mached records
Micle Jackson Sandeep B Jakhotya Javid Akhatar Suresh Jadhav Jackie Chan like this.
Similar control is already used by Yahoo Web Site for Search Assistance in its Web Search Combo box. Here if we type say 'bush', it will populate following records
george w bush jenna bush bush shoe bush game hot dog bush
I want the same with Visual Basic for Windows Form Applications.
I have a problem finding strings that do not exist in a column in a database. I am going to use linq but its more the 'way' of doing I am concerned with.
I have strings like; MEAL GPST EXLEG EXLG ...etc
I need to find records that does not have this list of strings in, so for example DBML BUT sometimes I can have the string MEALDBML, or more concatenated. So this is a known string of MEAL and unknown string of DBML. I would then want to see that record. I do not know the unknown strings up front, so its a case of feeding in the strings I know are ok, and finding one that are outside that list. I was also thinking of regex?
We have users to type in Business Requirement in a text box.For instance : DOB Field is mandatory in Service Request Screen.
I am planning to define all the keywords in my code and once search button is clicked it should look for the keywords and throw a msgbox with number of keywords found.
Though I know your site ask for some effort on my part im not exactly sure where to start.. I know how to code some decent things and such but recently I wanted to make a serial code system.. What Im looking for is to have a list of Serials on my website (possibly through MySQL? Or something simpler Not sure on this either) I know about the obvious
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click If TextBox1.Text = "BLAH123" Then MsgBox("Valid Registration key. Thank you")
[CODE]...
But I do not like this system as I have no control over multiple uses. I want to pull the keys from my website (hell through a notepad if its easier) therefore allowing me to delete and add serial keys as needed..
I googled this for the past 10 minutes and I couldn't find anything. What I'm looking for is to download a page (probably in the webbrowser control) in the background, and actually search the source code for a specific string and report it. But I can't seem to find out how to get the source code.
Is someone can give me an example in code making in searching for telephone numbers. Im just a begginer with just a little knowledge in coding. Any simple example that can give me hints on how to start a code in searching of telephone numbers.
So im currently making a program, basicly i want the user to put in a certain code into a text box, then when they hit the button, visual basic opens the excel spreadsheet, and seaches for the code the put it, so i have this excel sheet that has like a billioncodes and the names of the codes, so the names of the codes are in column a, and the codes are in column b, i want vb to open the spreadsheet, search through column b from top to bottom, then close the spreadsheet, and put the name of the code from column a into a label so the user can see. and possibly pop up with an error box if it doesnt find the code.
I am using access db . In my db one of the table called tblprojects and one of the col called Projects. I want to get the number of Projects , so how can i write the code for getting the number of Projects value? Generally in vb6.0 we can use recordset, by using this put while wend loop.. but in the vb.net how can i get? any how i will send my vb6.0 code plz any one can send code in vb.net.
I tried using the following codes but it's not working,
Dim Con As oledbconnection = new oledbconnection() con.connectionstring = "Provider = Microsof.jet.OLEDB.4.0; Source=c:\program file\database.mdb" dim sqlcmd as oledbcommand = new system.data.oledb.oledbcommand() sqlcmd.commandtype=commandtype.storedprocedure sqlcmd.commandtext = "query"
I am looking for sample code that will allow me to read, write and edit records to a local MS Access DB using VB9.For my project, the datagrid and other controls are not an option.I have looked everywhere and cannot find any code examples.I assume it should be straight forward, but with all the changes in VB9 its tough.
I need to disable a button after its pressed so the user does not have the ability to click it again as this would replicate the process in some cases.After alot of searching I found some tips - alot of code I found I could not understand.This is what I have come up with:
On page load: If Me.Page.IsPostBack Then 'lblDetails.Text = "disabled"
[code]....
I also read somewhere that I should use: System.Threading.Thread.Sleep(1000) to delay the process or something - not entirely sure why I would do this though.Although, the problem with my above code is that when the code behind page performs validation checks, it exits sub before executing my INSERT SQL code - so when it does this it also disables the button.I am not entirely sure if the above method is fool proof or whether it is a **** piece of code that won't work 100% of the time.On another website I found a script to put on the actual HTML page with <script> tags:
I have the following VB code that I'm trying to create a text file if the results from the SQL query is greater than zero. Here's a screenshot of my error i'm getting.
MolhadoRef is a refactoring-aware SCM tool that is capable of capturing andversioning of the semantics of Javaprogram entities and refactoringoperations that were performed onthose entities.
I created a simple Class called Student.[code]And then I tried to create an array of Students called s. I'd like to do something simple with the names of one of the students like the following..[code]I know that I need to use the New keyword to create an instance for each s(), but I'm not sure where to put it. When I try it without the array it's easy.
The idea of this program is to calculate and find total and average for 3 Students automatically. That is when the first data is entered and click on button the total and average of first student should be displayed in listbox. And we should be able to enter second data. Bu the problem is it is just printing the first average and total thrice.
Dim a As String Dim tot, avg, N As Single Dim I As Integer For I = 1 To 3 tot = Val(TextBox2.Text) + Val(TextBox3.Text) + Val(TextBox4.Text) + Val(TextBox5.Text) + Val(TextBox6.Text) [Code] .....
