I have created a main windows form and then I have created another windows form but I cant work out how to load the 2nd form. I am using a button and would like to know how to load the 2nd windows form via that button.
View 8 RepliesI am trying to load contents of an Excel file in a datagrid. The data in the Excel file is arranged in rows and columns. Every column has a column header. Now here is the anomaly. For some reason when I put a less than sign (<) before some of the values in the last column, the values become blank before they are loaded into the data grid. This behavior is not observed when the less than sign is put into the other columns. More strangely the values are retained in the datagrid even if the the < is put before the values of the first few rows of the last columns within the Excel file. I used the following code in loading data into the Excel file:
Dim con As OleDbConnection
Dim da As OleDbDataAdapter
Dim ds As New DataSet
[code]....
Regarding my college project. i'm working on a sales system . i have a form which consist of all the following information( item code , item name , item price , quantity of item ) which is display using a data grid . data input by user using text box and all this information will be stored in a database(sales database) i'm using ms access 2007. the grand total will be displayed in a text box . and amount paid will be input in a text box too , my major problem now is how to i create a reciept that will have all this information of the purcase. i have a reciept button . what the next step ? i dont have any idea how to get the reciept done.
Imports System.Data.OleDb
Public Class Form5
Dim con As New OleDbConnection
[CODE].......................
I've been trying to feed a multi line textbox into a string array then check item by item if a string contains part of it.
[Code]...
So i've to write this program whose purpose it this:
Purpose: The user enters the item name and amount of the item purchased. The program calculates the tax for the item and the final total, and then displays these values. Tax on all items will be 7.75%.
And so far i've this code but it's not working:
' Program: Cash Register
' Author: Nidhi Shah
' Date: February 2, 2010
' Purpose: The Cash Register Window application will
' computer the tax and the final cost of a
' purchased item.
Option Strict On
Public Class frmCashRegister
' Tax per item - used in multiple procedures
Const _cdecTaxPerItem As Decimal = 0.0775D
[CODE]...
I am using VS 2008 (VB) with an XP machine. I exported an item template and now my computer locks up when I attempt to add a new item to my project. I tried deleting the exported template but the same thing happens.
View 4 RepliesI have a list box on the form which functions as a copy/paste. When you copy something, it is automatically added to the list box as a "clipboard helper". Here is the problem,however: if the text is more than 1 line, the list box does not show all the text.It ends up looking messy.So getting back to my question, is it possible to make the list box item height for an item depending on the amount of lines that item contains?This is a one line sentence in the list box and should take up one line.This is a multi line sentence in the list box and should take up two lines for item height.
View 11 RepliesI have a window application develpoed in vs 2008, framework 3.5, in which i have put a button.. Now where i click that button the other text boxes are filled up with the data from database thru web service.. what i want is while all text boxes are being filled i want to show an animated loading gif image till data loading is completed in all the text boxes.. i have tried to use image picture box but while data is loading gif image is displyes but in static mode.. cant see animation... i think this is because data loading and animation both are done thru one UI thread..
View 8 RepliesIn my application I have a listbox and SelectionMode should be MultiSimple because users need to see which items they selected. In another tab we have another listbox this one should show all the selection users had done in first tab. Private Sub
[Code]....
I have a tab control and what I want to do is when I click on the tab, data is loaded into the DGV. This does not happen until I click on the tab page several times and then the data is shown. What I did was I took the dataset fill from the Form_load and put it in the Tabpage2_GotFocus procedure thus:
[Code]...
Im using this code to try and load in to a combobox from a table called tbltest and i keep coming across this error
[Code]....
I'm trying to get my program to launch another .exe within the project folders. At the moment I am using:Dim oasicer As Process = System.Diagnostics.Process.Start("oasicer.exe", "hammer_8_8.txt")but the program starts and stops straight away. the files were originally in a folder called OASIC in the debug folder, so I had "OASIC" before them, but that didn't work either.
View 11 RepliesI'm making a log for my application.I have made the log and it works.I use the streamreader and the streamwriter to save and load the data. I thought that it would be more organized to have columns inside the log.The problem is how will i save the information to the text file and load it up again so that it could organize itself again. The code that i used to make the columns.
log.Columns.Add("Task performed ", CInt((log.Width - 4) * 0.3), HorizontalAlignment.Left)
log.Columns.Add("Time and date", CInt((log.Width - 4) * 0.2), HorizontalAlignment.Left)
log.Columns.Add(" Amount of detected files(s)", CInt((log.Width - 4) * 0.2), HorizontalAlignment.Left)
log.Columns.Add(" App version", CInt((log.Width - 4) * 0.4), HorizontalAlignment.Left)
The code that i use to add the information to the log.
[Code]...
I am trying to make a jeopardy game where you can edit the questions/answers, so I made a XML, I have one function to save default values, then I have another function to load them... the saving goes perfectly now the loading is the problem.
[Code]...
Additional information: Object reference not set to an instance of an object.***i took out the space between Category and the number, that fixed the old error, now i get this one well... thats just about it... I am trying to load the same file that I saved previously.
I am creating a sports bet program and have set up a database in sql server 2008 R2 with results for games including wagers, odds etc. I now want to display this data in a range of listboxes, textboxes and labels in my VB.Net program.I am quite happy to play around and learn myself however I would love it if someone could get me started by completing one of the simpler labels. This label has to display the entry in Team One in labelTeamOne.
show me how to do this? I have already imported the dataset using the database wizard so all I need is the code.
when i select a bookmark from a listbox on another form how do i get it to automatically navigate to that webpage?This is the code im using to select the bookmark and load it to the webborwser textbox
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
If ListBox1.SelectedItem = "" Then
[code].....
I am trying to load an Excel 97 single tabbed spreadsheet into a SQL server table using the OleDbDataAdapter function. From all the documentation I have found, the first parameter should be "select * from [sheet1$]". This works fine for me only if the tab in the worksheet is named Sheet1. If I change what's in the [] brackets to the actual tab name, it also works fine.
View 2 RepliesI want to create a form that, when starting, will display in a ListBox the content of a txt file. I know the file is read because I can display the content in a MsgBox. Here's a snippet of what I tried so far:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim filein As String = "MyProjects.txt"
Dim objReader As New System.IO.StreamReader(filein)
ListBox1.Text = objReader.ReadToEnd
objReader.Close()
End Sub
When I debug my app, ListBox1 is empty.
How do I load a XML file into a webbrowser? I tried navigating to the XML url, but it prompted me to download the XML file.
View 3 RepliesA button click event on my main form calls:
frmPanelSchedule.Show()
In the frmPanelSchedule form's load event I am loading 84 labels, 84 comboboxes, 420 textboxes, and 84 buttons.
The form takes a long time to load.Is there a way to speed up the loading of the form?
Private Sub frmpanel1Schedule_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' create pole labels
lblPole(1) = New Label
With lblPole(1)
[code]....
I previously wrote a thread asking how to change a picture according to button movement in which i loaded the pictures from my C: drive. Well i have added the image files into my resources in my project and i was wondering if i could get more incite on loading the picture from the resuorces rather then the C: drive.
View 2 RepliesI found this code on the net that allows you to put the contents of an array into a datagridview:[code]This works fine as is, but can someone tell me how I can add items to the array without them all being contained in a single statement?How would I modify or seperate this out to use it inside of a loop?[code]
View 7 RepliesI am loading an access database in vb.net using
me.adaptername.fill(me.datasetname.tablename)
The thing is that this takes a lot of time and the program doesn't move on to the next line until it finishes loading all the data. Some of these tables I need only later but I don't want to make stall work while doing it. Is there a way to load a database without waiting for it in the code. and a way to check if it finished loading in code. this way i'll be able to load it in the backgroud after the program has started and if the user wants to use options which require tables which weren't loaded yet i'll be able to know and avoid errors.
Alright, for a school project i'm making a filecrypter, and i need to load the executable directly into the memory.
For those that don't know it yet, a crypter consists of a crypter, and a seperate "stub"
the crypter crypts the file, and the stub is binded to the file, and upon execution, the stub is executed, and in turn executes the file it's bound to.
I have a RunPE sub, and on itself it works fine
Imports System.Runtime.CompilerServices
Imports System.Reflection
Public Class Form1
[Code]....
I have a base form which has toolstrip. I am loading few icons to the toolstrip through the code as given below
mnuFind.Image = Image.FromFile(Application.StartupPath & "ImagesSearch.ico")
mnuSave.Image = Image.FromFile(Application.StartupPath & "ImagesSave.ico")
This code is in the form load event of the base form.
At the design time the images are displayed in the form.
The problem is in the inherited form. The inherited form is not loaded in the designer window. It gives the following error.
The service System.Windows.Forms.Design.IEventHandlerService already exists in the service container. Parameter name: serviceType
Some times it says it cannot find the image in the installation path of Visual studio.
If I remove the icons loading in the base form it works fine.
I have a Customer File, and want to serach through the customer file to find a customer. I want to be able to Load the data into an array, and then from that array into the list view. BUT i don't want all of the feilds. I only want 3 (out of a total of 7), CUST ID, FNAME, Lname, etc. When the user clicks on the searched Customer, it then displays that customer in the form.
What I am not sure about doing is loading the file into an array
Edit: The file is a .dat file. I will happily attached my form if someone requires it
EDIT2: Can't count to 7
I was wondering if you guys could help me. I have a web browser made, and now i'm working on coding my favourites system. It is working well, and adds the URL to My.Settings.FavList
My problem is once you've added a favourite then load up the favourites form, it appears. But if you don't add anything, and load up the form, nothing appears. Below I have attached my coding, I hope you guys will be able to help. Also i'm still learning VB, and almost all of this coding was done through me learning myself. So yeah, there may be parts wrong. Form1 - This code is to add the favourite. I don't think anything is wrong with this part.
[Code]...
I know it has something to do with the Favourites_Load, i'm just not sure what to put in. I have literally tried everything. The thing is, I bet it's something simple, and this is a noobie question.
I can successfully save my application data to an .xml structured file like:
<?xml version="1.0"?>
<appSaved>
<saved Firstname="Graham" Lastname="McCann" Email="graham23s@hotmail.com" Username="graham23s" />
</appSaved>
I was trying to do the reverse and load the data back into the textbox fields so far i have:
'Load the saved information back into the textboxes
' Create a new instance of XmlDocument
Dim myXmlDocument As Xml.XmlDocument = New Xml.XmlDocument()
[Code].....
i have me a database (.sdf) which loads its records into a listview. One of the database, due its size, takes some time before everything is loaded. I'm using cursor.wait atm, but it I guess there's a more professional approach.
How do I show a progressbar while loading the data?
Here's a small piece of the code I use to load the data:
[Code]...
I want a progressbar to tell me when my application is done loading, so I have tons of lines of code and the program is complete and it runs threw WMI, etc., etc., how do I get the progressbar to equal the value of completion my whole programs process has done?
View 2 Replies