I'm trying to make a application where the user can add a treenode to a treeview, and then after that they can add items to a listbox, making those items bound to that treenode? I need to do this for each node they create but I don't know how... I've been googling and reading tutorials on "DataSets", but it's always stuff about online databases
View 9 Repliesmy vb.net will not use listbox1.selecteditems it always comes up with a blue line underneath even though when i search online everyone is using this. my goal is to get the selected items and list them in a textbox
Protected Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim li As ListItem
For Each li In ListBox1.Items
[Code]...
I have setup a page in Excel with several textboxes for data entry. I would like to be able to tab from textbox to textbox so I can enter this data as quickly as possible.
View 3 Repliesi for my project what i am trying to do is:i have two listboxes and in between the two boxes i have two buttons. Btn1 is to send data from listbox1 to listbox 2 Btn2 is to send data from listbox2 to listbox1
below is my code could you please suggest improvements help me improve the method Private Sub m_buttonAddUserRole_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles m_buttonAddUserRole.Click
[Code]...
i am using a textbox to feed data into a listbox. i want it to split the data into seperate words and place them as items into the listbox. (split by the spaces)
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I'm having a problem with my software.
This is are the parts of my system where my problem occurs:
- Search Button
- List Box1
- TotalTextbox
- Button
- SQL Database with a Column named "Amount" and it only contains numbers Datatype is System.String
So, basically a user clicks the Search button and searches for a data in the SQL Database, and the result of the search displays in different Listboxes including the "Amount" Column from the database, which has it's own Listbox named "Listbox1". the Listbox is now filled with numbers.
Goal: The goal is to get the Sum of all the "Numbers" Displayed in the Listbox1, and the Total is then Displayed into a Textbox via using Click event or automatically.
The Code:
Dim sum As Double
For x As Integer = 0 To ListBox1.Items.Count - 1
sum += CDbl(ListBox1.Items(x))
Next
TotalTextBox.Text = sum.ToString
And i got this Error: Conversion from type 'DataRowView' to type 'Double' is not valid.
I ended up with this..
Dim sum As Double
For x As Integer = 0 To ListBox1.Items.Count - 1
sum += Val(ListBox1.Items.Item(x).ToString)
Next
TotalTextBox.Text = sum.ToString
But the values are not adding up, the total is always at 0. i've been searching for hours now from the net to a better way of doing this.
Here's a quick Flow on what im trying to accomplish here. Record from Database -----Displays on---> Listbox1 -----User Clicks--> Button1 ----Displays Total sum on----> Textbox1
I'm having a problem with my software. Im totally new to Vb.net and only learning through ebooks and google.This is are the parts of my system where my problem occurs:
- Search Button
- List Box1
- TotalTextbox
[code].....
in short I just want to have constantly running in the background something to display in LB8 the the contents of LB 2 that contain what is typed in TB1
1Private Sub Name_Change_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
2Dim filtertext As Integer
3filtertext = ListBox2.FindString(TextBox1.Text)
4ListBox8.Items.Add(filtertext)
5End Sub
Insert data into listbox from multi textbox by clicking a button.
View 2 RepliesI have a tool connected to access database. It retrieves the database based on certain input conditions from 4 textboxes, 1 list box. The data from database comes to a datagridview. I have to enter certain values in a particular column in datagridview and continue with my calculations.At this stage I wan to save my file with the data I have entered so far. Is there a way i can save this data into another file (for example say " SAMPLE"), so that when I open the SAMPLE file from my tool it should display all the values I have saved in the respective controls.
View 1 RepliesSuppose der is one database name Customer which have columns like Cust_ID,Cust_Name,Cust_Mob,Cust_Address And on Form der are one list box which contains all Cust_Id from database and 4 textbox so when user click on the listbox having id as 1 it should display name, mob and address of cust_id 1 in 4 textbox respectively?
View 18 RepliesIs it possible to have a Textbox on a form that when the user inputs data, ( during Runtime )that data remains in the Textbox for good and the Textbox then becomes read only ? Is it also possible to make it so that the CD with the programme on, is in the PC when the programme is being used. Perhaps writing the Textbox data back onto the CD ?
View 1 RepliesI want set Listbox background to transparent but not working
View 3 RepliesWhen changing selecteditems (the items themselves, not which ones are selected) in a multiselect listbox, sometimes the operation does not happen and items are deselected. Here is a simple example of what I mean, just a form with a multiselect listbox.
Public Class Form1
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
ListBox1.Items.Add("item at index 0")
[code].....
I have a function that fills a listbox with data from sql server 2000 database. Here is the code: (It's in a class)
[Code]...
im trying to shell a file from a listbox by getting its name and then shelling this is my code
Private Sub ListBox1_DoubleClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.DoubleClick
Shell("C:UsersNotandiDesktopSt�rikerfiFoldersGAMES" + ListBox1.SelectedItem.ToString)
End Sub
[code]I will want to include a combobox with some options of a. alltheseat b. Vacantseats., c. Reservedseats.My question is how do I write the code that when vacant seat is selected from the combobox it will list only the vacant seats in the listbox and when reservedseats is selected it will list only on the reserved seats.
View 11 RepliesIs it possible to select an item in one listbox and then display the data of another listbox with the same indexed position? I am planning a project and this is something I would like to attempt but I haven't figured out how to do it.[code..]
I tried doing the above code but instead of displaying the listbox text the message box just returned false.
I'm very confusing about this code .When push Button1 ,the code not working
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Selected Case of a Listbox isn't working as expected
View 2 RepliesWorking with a listbox to send email and I have the ff code -
Dim EmailAddressFrom As String
EmailAddressTo = lstbxEmailAddress.SelectedValue.ToString()
MessageBox.Show("To Address is ", EmailAddressTo)
When I run this, in my message box, I get -
"System.Data.DatarowView" as the title of my message box "To Address is " And when hit F8 to continue debugging I get the ff error msg - "The specified string is not in the form required for an e-mail address."
I have a listbox and i populate it with data in my code like this on the page load....
[code]...
So say one item in the list is displayed Ted Jones (123) and its valuefield should be 123. Im just not understanding what i am doing wrong here.
I've pretty much just started in playing with Visual Basic Studio 2010 and have been using this site for lots of answers so thought I'd join up and harass more directlyI've been trying to move items between two lists, one is databound to a bindingsource, the other isn't. I found out that you can't really move items from databound lists, but you can remove from the datasource instead. This works fine until I want to move the item back - it fills a blank line with seemingly no data.
View 6 Replies[code]When i put text in the textbox, move focus away, and then back again, i would expect the text to be selected, however it is not working for me.
View 1 RepliesI want to validate email in text box through key press event.my code is as follows
[Code]....
it is not working, provide solutions....
I am working with form having multiple tabpages. I need to set the focus on first textbox of all tabpages.
I tried to declare the following when the form loads, but only txtbox1.select() is working.
CODE:
I am working with form having multiple tabpages. I need to set the focus on first textbox of all tabpages. I tried to declare the following when the form loads, but only txtbox1.select() is working.
[Code]...
I have a form1 that calls a form4. In form4 I have a cancel button, and a textbox. I have causevalidation set to false for this button when the Form4_FormClosing loads up, however when I hit the button to cancel it still asks me to validate the textbox. I'm not sure why causevalidation is not working in the child form.
Imports System.Data.SqlClient
Imports System.IO
Public Class Form4
Private isdirty As Boolean
Private Sub Form4_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
[Code] .....
I am using SetScrollInfo to set the position of a scroll bar in a text box...
Basically the call is working as it sets the position of the scroll bar... but the text does not scroll and is still at the last position that the scroll bar was in - when clicking on the scroll bar the text scrolls to the correct location
i want to do is run some coding if the value is higher than 0 or if its 0.
Dim i1 As Integer
Integer.TryParse(txttotal.Text, i1)
If i1 > 0 Then
'run code
[code]....
Every single times it keeps running the second part of the coding ie 'run code 2?