I'm creating a label within a class and I'm getting an error when I try to do the following code below where its bold. The error I'm getting is that:
Drawing is not declared. It may be due to its protection level.
I'm thinking that I have to import a namespace, but I'm not sure exactly which one contains Drawing. I have researched this and have been unsuccessful.
Label1.ForeColor = Drawing.Color.Red
I've been creating short test apps repeatedly to try to understand some of the concepts in VB.NET.For the most part it has been illuminating.I read Bucky's .NET knowlegebase tutorial on passing objects as parameters to newly created forms. He shows how to create a new class that inherits from the base form class and define a New() method with parameters Extending the concept I thought about doing the same thing with a form that was created at design-time (In this case Form2).
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I want to read a number of items from a file and then associate each of those items with a new button at run-time, so that when the user clicks one of the buttons I can display some information about that item.Can I use a LIST to manage these buttons and items? Can I create a new class and have each list item of that class, such as 'btnID', 'btnText', etc... ?
View 2 RepliesCan we create objects of a C# class from a VB.NET class and vice versa?
View 2 RepliesI want to create a class that will "search" for something. Basically I load up the "search item" when the class is created and inside the class is logic to do the "search". The result of this logic will be more "searches" that I want to start. How can I have the logic in the class create another instance of the class itself?
View 3 RepliesI want to create a class is it where I can do...
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How do I do this? Do i create a class and create a instance of CarData? but how do I add Color and Year etc to it?
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 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
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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'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
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
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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
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I have this class:
Public Class Pizza
Public Sub New(ByVal name As String, ByVal cost As Decimal)
Me.Name = name
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But I want the Cost property to be displayed in a label as I add each item into a ListBox. In context, I add an item from a listbox into another and when I do the Cost of each item will be added into the label. Like a checkout system and that's the running total.
I have problem in Form controls. I inherit label control in a class Mylabel i use this label on my form not standard label control. now i want change the Font all Mylabel in my form then it not change Font when i use standard label control it's work.
I use this code
For Each Ctrl as Control In Me.Controls
Ctrl.font= new Font("Arial",10)
next
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.
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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'm in the process of trying to create a class that will allow me to create windows shortcut; Im using the following PDF file that gives me the shortcut file structure.
Ive been able to successfully load a shortcut file and parse its Lnk File Structure but now Im on the Shell Item ID List structure but I cannot find the Structure of the ITEMIDLIST anywhere
Furthermore I know I could use the Windows script object, but this is a dependency Im trying to avoid if I can, hence writing my own Shortcut class.
I'm try to create a class has been create by main class only by protect sub New but how do I create it ?
Public MustInherit Class Rune
Protected MustOverride Function Create() As Rune
Public Shared Function Factory(Of T As Rune)() As T
'I can't use "T As {Rune, New}" because Sub New isn't Public
'Return (New T).Create
End Function
End Class
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I am stumped on how to create a new label when pressing a button
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How do you create a label which is'nt associated with a handle so that it displays the data when the form is loaded with clicking it etc?
View 1 RepliesHow create Label vertical in vb.net?
View 4 RepliesMy friends when I form this code used to load instead of 9 to create Label should be only one, but it provides this option when I write I button well this Code while working How can i label when the form was loaded to the View
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I'd like to create a loop that dupliates a label I've made and put it all over the screen. Example of what it would look like.
For i = 0 to 52
originalLabel.duplicate ("duplicatedLabel" & i)
next i
So later I could go through all of them...
For i = 0 to 52
//... some logic to determine color... then assign it somehow
duplicatedLabel & i.backColor = Color.red
next i
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I can do that in Flash/Actionscript but dunno how to do it in VB and I can't find it anywhere.
I'd like to create a loop that dupliates a label I've made and put it all over the screen. Example of what it would look like.
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I can do that in Flash/Actionscript but dunno how to do it in VB and I can't find it anywhere.
Like the title sais, how to create a Label on clicking at a picturebox on the position of your mouse? The text doesn't matter.
View 13 Repliesi want write code for label control into my application. i wrote the code below, but was not getting the labels when i run the program.
GroupBox.Controls.Clear()
Dim lbl1 As Label = New Label()
lbl1.AutoSize = True
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When the form first loads there are two global variables (assigned values in the form load sub as a default) that set the number of days back in time and how many days ahead events will be displayed (in an array of labels). If the user wants to view more events (or less events) the number of labels displayed (and the text they contain) will change. I have one sub (code below)that creates an array of labels.
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I'm having some trouble with a class that uses the ToolStripControlHost, I have to create a label and a label beside the textbox, this works, the problem now and I can not access the property. Text of textbox (txt). the class to this:
Public Class ToolStripTextBoxWithLabel
Inherits ToolStripControlHost
Public Event TextoAlterado(ByVal sender As System.Object, ByVal e As System.EventArgs)[code]......
I have been trying to create a label which has text with subscripts and superscripts, alas with no success.
View 6 RepliesI have to create a textbox and a label component. The textbox object will have to behave under the following conditions: 1. It will only accept letters and the ENTER key as input.
2. As an extension of condition #1, a message will appear whenever an invalid key is pressed
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I have created a label to display on my form at runtime but it doesn't show up. I know I am doing something really dumb.
Dim
lblLoad As
New Label
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How to create Object (label, button) using Code?
View 4 Replies