I have a problem to solve and not quite sure if the way I think is correct.
I have a main form class MainForm the class has got: a variable call Value and a label called LabelValue
Now I would like to automatically update LabelValue every time the Value changes his value
I have a Main Module that loads a form. I want to update text on a Label, my code is:
Public mFormSplash As Form = New FormSplash
Sub Main
With mFormSplash[code]....
The code loads the form OK but does not update the Label's text (LabelStatus)I am getting an error Error:
'LabelStatus' is not a member of 'System.Windows.Forms.Form'.
This worked ok on a previous project and I can't work out what is different.
basically i need to change the text of a label where the name of the label comes from the value of a variable.So, for example,
Dim x as String = "lblTarget"
Dim y as String = "Target Text"
In this case the text of "lblTarget" would need to be come "Target Text". Basically, the label that is named the value of variable x would need to take on the text of variable y.
I have a label in my Form which on loading, displays the contents of a text file. The contents of the text file may change and if so, the number of lines also will. I would like the Form to automatically resize itself based on the number of lines in the file. If there are more lines that the size of the label can take, I would like it to either resize or show scroll bars.
View 2 RepliesI've been programming in vb.NET for a whileAnd to be honest, its turning out to be a real pain.Here is the
Form1.vb: Imports System.Threading
Public Class Form1
Dim trd As Thread[code].....
So, I have a form (form1) with a label on, this label simply reports the status of the thread.The thread begins the Class1.Main() sub, and I have a delegate setup to change the text propoerty of the label.Now,I know the label is created on the UI thread,so I assumed the delegate would work. However,it seems that it updates the .text property, but doesnt redraw the control when .Update() is called .What am I doing wrong?I have found lots of examples of delegates, but all run from within the same class. I want to use threads too, not a backgroundworker! This code is a "simplified" version of a project I am on, which is encountering the same problems
Using Visual Basic 2008 Express. I need to pass a variable to another form. Or else make the variable visible to both forms.
View 4 Repliesi have a class called car and within that class i have a few vairables
Public Class car
Public Property Name As String
Public Property ID As Byte
[Code].....
Class 'System.Windows.Forms.Label' cannot be indexed because it has no default property Really can't figure out why I'm getting this error... tried to google it but no success. Could anyone point out what I'm doing wrong? I'm sure it's something simple. The code in red is where the error occurs.
[Code]...
I'm using VB 2010 Express and I want to connect it to sql server 2005 where I have db with just one table.What I want is to write code to connect to db and bind database fields to form controls like text boxes. I'm new in VB.net, and have found some code on net but when I try to load form textbox is empty. Here is full
[Code]...
I have a form called studentForm which has a studentCombobox, studentTextbox and a studentDatagridView
In the constructor of the studentForm I need to bind studentCombobox to the StudentbindingSource of the main form and to bind studentDataGridView to appropriate binding source in the mainForm.So that this datagrid view displays all the bookings for the studentID currently selected in studentComboBox
studentComboBox.DataSource = MainForm.StudentBindingSource
studentComboBox.DisplayMember = "StudentID"
studentDataGridView.DataSource = MainForm.StudentDataSet
studentDataGridView.DataMember = "Names "
This is the code I wrote in the constructor
I am trying to bind data from a text box on my form to a field in my database table. First of all I have created a DataSet, BindingSource and Table Adapter in the forms Design view, but I am having from there. Under the properties of each text box I have set the DataBindings (Text) to the field in the table under the forms instance and DataSet rather than the Projects Data Sources. I am very rusty at Visual Studio 2005 and that is all I have to work with.
View 2 RepliesI Use a thread to send an email. I need write text in a label to let user know when email was send in a form of budgets.' Option Strict is off Function on class form.
Public Sub ChangeLblText(ByVal msg As String) ' LblIconos.modifiers = public (In form)
lblIconos.Text = msg
End Sub
Declarated class of new thread. (Global declared.)
Public TasksPresu As New TasksClassPresu()
An Icon of Form "Presupuestos" trigger the thread
Dim Thread1 As New System.Threading.Thread(AddressOf TasksPresu.TaskEmail)
Thread1.Start()
Class Trigged thread
[code]....
When run this make an error in this line: lbliconos.text = msg Error: "Illegal operation through threads. It had access to the control "lbliconos" from a thread other than that which was created"
I Use a thread to send an email. I need write text in a label to let user know when email was send in a form of budgets.
' Option Strict is off
Public Sub ChangeLblText(ByVal msg As String) ' LblIconos.modifiers = public (In form)
lblIconos.Text = msg
End Sub
[code]....
I tried Invoke metods, delegate functions and adress of form without work, may be i left something.
I have a Windows Form1 with label and i want to update the Form label text from the class file. I can able to get the Form1 controls from the class file but it is not updating the value in the Form. VB.net
Below is the Form1:
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
I am using a for each loop and each time the loop executes, the text of the label has to be changed.. But for some reason, it only changes the text of the label during the last execution of the loop...
Here is the
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim dll
[Code].....
I want to read from a text file and display it in a label. However, when I do that, I see that there is no word wrapping. In the sense, a whole paragraph is displayed in one line and the next one in the next line and so on. Can some one please tell me how to read text from a file and make it display as it is (lines as they are)? I am using the following code right now:
Imports Microsoft.Office.Tools.Word
Imports System.Runtime.InteropServices
Imports Microsoft.Office.Interop.Word
[code]....
Is there a way to change label text at run time?. I don't want to annoy users with popup. So planning to display error in a label if its text could be changed.
So far I have included a Main Form which has a label lblErrorFeedback which is not visible initially and I have done this but does not work.
lblErrorFeedback.Visible = True
lblErrorFeedback.Text = ""
lblErrorFeedback.TextAlign = ContentAlignment.MiddleRight
lblErrorFeedback.Text = "Error Occured"
Is there a better way to show the error with out popups?
how to justify the text in the labels so that they look good - I mean, instead of the default left-aligned text-format, is there a way to make it justified.
View 1 RepliesHow do you reference a variable in another Class?
Public Class Form1
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
TextBox1.Text = "Class1_Text" ' Would like to replace w/correct code
End Sub
End Class
Public Class Class1
Public Class1_Text As String = "Class1 Text"
End Class
I can reference the Form1 data in Class1 but not vice-verse.
I wrote the following two functions in a class to take a gpib reading and also take a measurement from an LCR meter.
HTML
Public Function gpibRead(ByVal Channel As Integer, ByVal buffer As Integer) As String
Dim readingBufferA1 As String
Select Case Channel
Case 1
readingBufferA1 = gpibLCRA1.ReadString(buffer)
Return readingBuff
[Code] .....
When on the main form I call the funtion takeMeasurement(1) how can I get the LCR readings back. If I try and use readingBufferA1 on the mainform it doesn't recognize that as a variable. I know that it is taking the reading and storing the correct numbers because I am monitoring on NI Spy.
how to set the value of a Public Class variable to a text box entry?
I have a variable declared in the Public Class that was assigned to a public variable and I want to be able to have user entry via textbox.
If i change the variable to an integer and set it to textbox my program wont build.
I would like to add in a progress bar and a status (label control) which will display what system doing after user click a button. There are few status:
Eg: Importing data, Verifying data, Generating Report
Part of my coding:
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Private Sub cmdImport_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdImport.Click
ProgressBar1.Visible = True
[Code]....
lblStatus is the label which will display the current status. But.. while user click the button, "Verifying Data File" is not displaying. After the system complete the whole progress, lblStatus only display the text.
Have a label on a form which I want to show run time status, and have a code module which stores some functions. How do I send text from code module functions to this label on form?
View 2 RepliesBasically I want to have a textbox (TextBox1) that when you enter an area code (ex. 512) that it will return the state (TEXAS) in the label (Label1). One way that I had been trying before was to reference from a text file the array that I am using which happens to be in the format of 512, TEXAS.
I would like to use this for multiple area codes and have been unsuccessful in getting it to work. Any help with that? Any ideas how I could get it to work?
G10L41T20P0C15D1.2S1I0E1.2H4.7262K0.J0Q1450N000000 01
G10L41T21P0C19D0.87S1I0E0.875H5.9386K0.J0Q884N0000 0001
G10L41T22P0C2D0.53S1I0H7.3233K0.159B0J0Q236N000000 01A0.
[code]......
I wanted to have multiple color for text in single label controller
e.g.
label1.Text = " $ 480.00 "
What I want is character $ in Red color and other digits or character after $ in color blue. $ 480.00 I cannot use separate labels for digits and $ due to limitation
i have a loop in here what suppose to add a rondomly choosen number and show it on the label .text increase every time by the the same number when appear. It does not do it correctlythat is the
Private Sub licz()
Dim pbs() As PictureBox = {PictureBox1, PictureBox2, PictureBox3, PictureBox4, PictureBox5}
Dim las() As Label = {Label1, Label2, Label3, Label4, Label5, Label6, Label7, Label8,
[code].....
I have made a vb.net application which has 63 forms. On each form label2 should contain the username using the application. The first form displayed to the user is the login form. When the user clicks the login button on this form the user name in all newly opened windows should appear inside label2. How can I do this?
View 3 RepliesI cant seem to find any link or topic regarding my problem. I have 2 forms in a project, form one has labels and adjacent combobox while the other form (form 2)has textboxes with adjacent combobox. I am supposed to change the text property of the labels using textbox entry from form 2 and add/delete/change combobox contents in fom 1 using entries combobox at form 2.
View 13 Repliesi want to read the data from the table to textbo.below is my code
[Code]...