Im making a 'DVD database'. I need to be able to cycle through entries in the database wit ha next and previous button but for the life of me cannot figure out how to do so.
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I'm building a small program and I have a numbers only textbox where its content need to be higher than 1. So what I have is a messagebox pop when the text change and its lower or equal to 0. What I'd like to do is have the text changed to what it was before the number was changed to <= 0.Here's what I have for the control:
Private Sub txtDelay_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtDelay.TextChanged
If txtDelay.Text <= "0" Then
MessageBox.Show("Delay must be atleast 1 millisecond.", "Delay Error")
End If
End Sub
I am designing programe that diplay student record from database to some asp.net control like Label and Dropdown control and nagigate the record using Next and previous button I want to view One Record at Once at a page Bellow is my Html Page
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I want the coding for next and previous button and its given on my form. I want to fetch the records from my database and display it on my form.
View 6 RepliesI am trying to insert checkboxlist values into SQL using a stored procedure.Getting This error Item In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user. System.Data.SqlClient.SqlParameter Here's my stored procedure
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How does the last button work, heres my first, next, previous and last button codes"
next button:
[CODE]..................
previous button:
[CODE]..................
first button:
[CODE]..................
last button: *not working*
[CODE]..................
I have a program where you have three entries, CD name, artist, price and it goes into a listbox and .txt file when closing. I have to have a message box if you enter the same CD name. I have a code to open the .txt file and compare strings but I need to change it to compare only the CD name and not all three entries. Is there a way to do my string compare against my listbox without opening the .txt file?? The program loads the listbox from the .txt file when opening. Private Sub btnAdd_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAdd.Click' adds CD information to the list box
' declare variables
Dim strName As String
Dim strArtist As String
Dim strPrice As String
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Coding for next button and previous button which goes to clicking next and previous picture from imagelist1. I just did for next button but it not work properly.
Static imageNumber As Integer = 0
Try
imageNumber = (imageNumber + 1) Mod ImageList1.Images.Count
PictureBox1.Image = ImageList1.Images(imageNumber)
PictureBox1.SizeMode = PictureBoxSizeMode.Normal
Catch ex As Exception
MsgBox("Picture finish")
End Try
I've made a program for a small business that keeps track of what items there are, their prices, and the quantities of those items. I would like to add a button that goes along the lines of "Add to sale" or "Add to cart", and have it select the currently highlighted item in the database grid view to add the price column up, to make a total for a sale.
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My first method is trying to get all entries in one of the database tables. However when I try to build the solution this is the error I get:
<div style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;" id="_mcePaste">Error
1 Value of type 'String' cannot be converted to '1-dimensional array of String'.[code]....
In my head form, in have a few textboxes related to an access database.
How can i put my entries in my database.
I already created a connection, dataset, tableadapter,...
I manage to show some data of my database in to the form but not in the other way.
I want to set a certain column to true or false automatically based on what value another column has entered. I managed to get this working by myself using the 'SQL Pane' in VB and testing it by using execute sql but I don't know what to do now. I assumed that I could just save it and it would work from there but that's not the case, it dissapears from the SQL Pane if I close the project (even though it worked fine when I ran the project the first time), so where do I put it/what do I do with it in order to get this to work?
View 1 RepliesThis is my coding for button Next and Previous but when I click on next it just goes to next like from pictures 1 and 2 to pic 3 and 4 but not any more because i have pictures in two imagelist upto 20 but it doesnt work and the coding for button previous also doesnt work same problem.
Next Button Coding
Private Sub btnNext_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnNext.Click
Static imagenumber As Integer
Try
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I had created two button for the previous and next function. I think my logic is correct and the programming did not have any error but still, i failed to navigate through the data.[code]The problems are when i hit the next or previous button, it did not jump to the respective record and it keep on showing the 'end of record' or 'beginning of record' as programmed.
View 1 RepliesI have a program that displays all of prisoners details.I use a form to add all of the details and then on another form it shows them, i have a search so that when you type the prisoner number in it will find that specific prisoner.When i add a prisoner a count in a textbox moves up 1 to show how many prisoners in the system.When i have added all of the prisoners i need to be able to go through them using a next and previous button.Can someone help me with the coding for these two buttons?
View 3 RepliesI know I am somewhat hogging the forums lately for my media player. Does anyone know know how to determine when the media player controls previous and next button is clicked? I am using a listbox to show the songs playing and it works fine except for when the next and previous buttons are pressed, i dont know how to tell it to change the selected inbox. If next button is pressed, selected index is +1 but if previous button, selected index is -1. How do i access the media players next/previous button controls?
View 10 RepliesI want to load multiple image in one picturebox using these two buttons which Previous and Next buttons.... I have no errors with that but the image is mark "x" in runtime when i press Next and Previous button....
How can i display my Image...
Public Class Form1
Dim m_files As String
Private m_CurrentFile As Integer
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How can i work with Next and Previous button, in VB6 with the help of record set it was quite easy, but in dot net i little bit confused, how to do it?
View 1 RepliesI conected my access database with the form and I need the code to count how much entries are in the database and increase that number by one, and then to write that number in one textbox so that when I press save in the form the entry would have that numbar as id.
View 7 RepliesI have an accounts program. My cash book shows data based on date picked from DateTimePicker. Cash book is not entered everyday. I want to make my datetimepicker so that based on dates found in the database, it changes colour or enable / disable some dates, for which cash book has been entered. How is it possible?
View 6 RepliesI created a simple database that has 3 tables & 2 joint tables for data entry purposes.The tables & fields are listed below. All items that appear in red are the primary keys
Employee
EmployeeID
- FirstName
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I would like to make data binding using BindingSource whereby whenever either Next Button or Previous Button is click the BindingSource position will change to display the data at that position.
I know that if I want use a loop of the BindingSource I could do somthing like vb code below but I am not sure if of binding it seperately. I usually bind it through the properties but this I cant because is an image column which I want to bind and I have to us memorystream to display it to reduce memory usage, so I asign it to arrPic so that whenever the BindingSource position changes the image column will be asign to arrPic.
Dim MyRow as DataRowView
For Each MyRow In dtView
'only use non-repeating names
CurrentPicture = Trim(CStr((MyRow("FileName"))))
If CurrentPicture <> LastName Then
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The BindingSource filter the picturenames and add to a listbox. One name may contain about 4 or more pictures so when you select a name from the listbox the bindingsource populate only the pictures have the selected name and you can navigate forward and backwards.All what I want is how to bind a column to a textbox or picturebox by code. I know if it is a dataset I can declare a datarow and bind anything to the columns.
I am currently having a problem in my SQL Statement . I am creating a back and next button and about the Next Button it works just fine. But in previous button its kinda ok...but the problem it goes at the first row not the previous of the selected row.
Here is my SQL STATEMENT...
"SELECT t1.* FROM (SELECT RecordID FROM tbl_assessment WHERE StudentNo LIKE '%" & txtstudentno.Text & "%')t2 CROSS APPLY (SELECT TOP 1 * FROM tbl_assessment WHERE RecordID < t2.RecordID ORDER BY RecordID ASC) t1"
Is it possible for Forms to check for certain entries in an online mysql database and to create new ones? (login/registration)
View 8 RepliesI just starting coding in VB.net about two weeks ago so I'm still a begging and I learn best by seeing working code and then adapting it to my situation. That being said, I need help displaying table entries in a listbox. I've successfully created a database in my test application, added it to my Data Sources and used a drag / drop method to add Datagrid View & Details (labels & textboxes) to my application for testing purposes. Now I want to try and display table entries in a listbox.
Example Database:Table: Contact
- ContactID (autonumber) [primary key]
- FirstName (text 50 limit[code]....
Also is there any benefit or down side to creating a database in MS Access, create the relationships & tables, then attaching that database to my application or is it better to create the database in the application like I did in the example above by using the Add New - Service-Based Database option?
I have a program with two forms, one that handles the applications controls, and the other with the functions that open a file (csv), open a database, and query the database. The controls on the first form are a list box, three labels (to display parsed csv information), and three buttons (clear database, load database from csv, and load listbox).
The clear database and load database buttons (events) seem to function correctly.On the other hand, the load list box event doesn't function 100% the way I'd want. [And, I can't test the selected index event yet]
The code for the load list box event is:
Code:
Dim db As New DBUpdt 'second form
b.openConnection("weather.mdb") 'open database connection
db.query("SELECT * FROM stations") 'query database
Do While db.moreRecords
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You see, in my new VB application, I have a form with a TextBox and a ListBox, and I need to make it so that, whenever some text is written in the TextBox, a SELECT operation must be performed in a table belonging to an SQL database, in order to return the elements of a particular column that are LIKE the text I just wrote in my TextBox. The results of this SELECT operation must then be written inside the ListBox.In other words, whenever I have some text inside my TextBox1, I have to do:
SELECT Description FROM Elements WHERE Description LIKE TextBox1.Text (this must be done whenever the text changes)And the results of this operation must be displayed in the ListBox on the side.
I have 2 webforms default.aspx and default1.aspx.In default.aspx I have a button on button click event it redirects to default1.aspx?sno=1
then on default1.aspx I have a button back. On back button click the user is redirected to previous page default.aspx.How can I do this?
I have a form with few text boxes and other control on it like button etc. On click of a button on form i do some validation (like x = 2) if yes then it gives warning message and i want to give the focus back to the previous control (the control which was having focus before clicking button). I tried following on click of button
dim prevcntrl as control = asctivecontrol
if x = 2 then
Magbox("not valid")
activecontrol = prevcntrl
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I made a bowling program, it adds 5 scores from 1 player and then calculates the average. Problem is with my reset button, when i click reset it doesn't change "Enter Bowling score for game #1" to 1, how do I change it to 1?
<code>
Public Class frmLab2
'This is a program calculates the average scores of 5 bowling games using array.
Dim scoreCount As Integer = 1
Dim intcount, total As Double
Dim i As Integer = 0
Dim arrscores(4) As Double
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