I have a class, called myClass.vb. I have a sub in it. this sub has a string variable, which has got some value. Now, i want this value to be transferred to the button_click event of a very seperate form called myForm.vb.
View 3 Replies
I'm using Visual Basic 2010 express, and I can't seem to be able to figure out how to make a button_click event select all of the checkboxes in a CheckedListBox. For example, I created a checkedlistbox with about 34 entries in it, all of which can be checked. So I decided, to make it easier, I would just make a Button with "Select All" on it, but I don't know what kind of button_click event would select all of the items withing my checkedlistbox.
View 2 RepliesI need help with a month calendar. I want to write an If statement in a button_click event. I need an If statement that says if one date is selected then a label becomes visible. I cannot figure it out.
View 1 RepliesIn my project, I am trying to make a button_click event occur when the text of one of my labels is changed.I am using the following code,
Code:
Private Sub Total_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Total.TextChanged
[code].....
I need to declare a directory, create a file in the form_load event. I need to write the value from an array in the file when during Button_click event Is there any way to use the object declared in the form_load to be used in the Button_click event????
[Code]....
I'll get straight to my problem - I'm currently coding in Visual Studio.I have a table (countries) with the columns ID | Name. The table is filled with around 28 records.I also have a form with 4 combo boxes (set up as 1,2,3 & 4) that I want the user to select. These combo boxes will display the names from the table countries. I then want to use the selected names in the combo boxes to Insert into their corresponding ID into another table. For example England would have the ID 1, USA the ID 2 etc.So, is it possible to have separate combo boxes that will give separate ID values but using the same table? At the moment I can't seem to find a solution.Eventually the form will have more than 4 combo boxes so I don't want to use separate bindingsources for each combo box.
View 5 Repliesi have problem when i click a ADD button, there is one null value in the textbox .. so the try catch statemnt is to catch that null value error but after that the catch is success but the button click never stop excute the statemnt till the end of the button event.
View 6 RepliesExample:
Two files - TestClass.vb, myForm.vb
TestClass.vb looks as follows:
Imports System.Threading
Public Class TestClass
Private myClassThread As New Thread(AddressOf StartMyClassThread)
[code]....
The result:Application runs, no errors or exceptions.Displayed is the listbox and the Start button.I press the start button and a msgbox says "Not Invoked" as expected and upon clicking OK to that msgbox "Start Button Pressed" is added to the Output listbox control.Immediately following that the msgbox pops up again and says "Not Invoked". I was expecting "Invoked" as a separate thread is trying to use the Output listbox control.Of course this results in the Output.Items.Add being attempted which results in no visible result as the thread is not allowed to directly update the UI control.
I am trying to make a simple smtp client and I would like to have it so it can add more then one recipient to the emailso I wanted to learn how to split a string using delimiters. I have only used delimeters in batch with a FOR loop but I don't know howThis is a sample I found on the net.
Private Function SplitStringIntoWords() As Integer
Dim strComplete As String = "This-is a complete sentence"
Dim strWords() As String
[code].....
Good evening folks, I'm building a program that is threaded. While I can get the thread to work no problem, I can not seem to add pages to my tabcontrol from the class I'm using. Any idea's on what I'm doing wrong?frmMain is loaded first. Then the idea is to load the other tabpages using a separate thread as they take awhile.[code]
View 1 RepliesI am having following Projects
ClassLibrary1
Public Class Class1
Public Sub MyMethod()
[code].....
I don't want my application's main form to be displayed when it opens; I just want the notifyicon control in it to show in the taskbar.This is the code I have been using:
Module:
Code:
Module mdlStartup
Public Sub Main()
[Code]...
The NotifyIcon control is in my frmMain. However, when I run my program I get mulitple instances of the Notify Icon being displayed. I even get two frmMains getting launched if I try clicking the other tray icon that has been made. I'm guessing this has to do with the New instance.If that's the problem, is there a way I can move the notifyicon control to some completely separate class?
Is it possible to raise event in one class and handle the event in another class? If so, how?
View 6 RepliesI've got a variable which contains a string like: dim test as string
test="bjcbhiabab,1,1,50,0,1,telepathie2,1,60,0"
Now I need to seperate all those values (each seperated by a comma) into new variables let's say value1 to value9 What's the most easy to use coding for this? I haven't got a clue which coding to use for this :S
I have been trying to find out how to do this for days now, so I am finally asking how. I am newish to programming. Here is my problem.
I am trying to extract x,y,z coordinates from a text file arranged as such:
x,y,z
x,y,z
x,y,z
etc.
I need to be able to extract the x column into an array, the y into an array, and the z into an array. I learned how to pull it into a string, and how to split for every line, but i don't know how to split after each comma and separate them.
I currently have an arraylist holding many separate numbers and I need to loop through the array and change each number, the number will be changed depending on other determined settings but I can't seem to get this to work,
For i = 0 To Me.TextBefore.Length - 1
intTemp = CInt(Me.textarray)
intTemp = intTemp + intUsr
Me.intarray.Add(intTemp)
Next i
If I had multiple entries under my value in my dictionary, is there anyway I can put each value in separate tags to create an xml document?
Is there anyway to split the 3 values into their own tags?
Im trying to get a ComboBox that would list all the pc on a netowrk, (Domain and/or WorkGroup)the idea is so that when i start typing the name of the pc list would come up with sugestions (nearest match)
[code]....
How can I move the following to a separate class for repeated use ? (the problem is that it uses response object)
' Download/View a given file
Protected
Sub downloadFile(ByVal sFile
As String)
[code]....
I have a listbox in separate class like this [code]
[Code]...
How can I use that list box that I have created in that class on this form or I want to show that listbox on my form?
this example shows my problem. I'm using VB.net 2010
Public Class Form1
Public Class BonoType
Public name As String
[Code].....
What happens is "Goose" is not only stored in tory(1) but also in tory1(1), how can I stop this.
I'm writing a program and rather than having all the print properties in the main form I'd like to have them setup in a seperate class. I've done printing before by setting all the properties in the form where all the controls are located with no problems but this has me stumped. Reason for doing this is just to try and organize the program a little better and there are several areas of the program that will have different data and format to print so this will cut down on having potentially hunderds if not a thousand lines in that one area. I can't imaging that this wouldn't be possible.
View 1 RepliesThe code below works fine when I put it in form1.vb and change "form1" to "me" but I can't seem go get it to work from my class.
VB
Imports System.Threading
Public Class Class1
[Code].....
I did a super simple calculator with ASP.net with five buttons: add, subtract, multiply, divide, clear. There are five separate functions for each button's click event. For example: Sub addfunction(ByVal s As Object, ByVal e As EventArgs)If Not IsNumeric(input1.Text) Or Not IsNumeric(input2.Text) Then resultLabel.Text = "You entered an invalid or missing number"
[Code]...
How might I be able to combine all 5 of these functions into one? So for example, all the onclicks will refer to the same function, but will somehow be able to determine which button was clicked? I forget a lot of VB.net from a year.
how can i Refresh ComboBox After Adding New Values via a Seperate Form in vbnet.
View 13 RepliesI'm working a business layer (separate assembly) that will contain various business entities used in multiple client applications. One of the client applications is a WCF app that will need to serialize these entities. In order to properly serialize the entities, metadata for data contracts or for XML serialization must be added, but the serialization requirements may vary across applications.
Clearly I need the metadata separated from the class definition. So how do I add metadata to my entities for each separate application?
I need to be able to access a progressbar in my form from a separate class.
I tried
Dim Prog as Progressbar
Public Property Pg()
Get
[Code].....
I need to be able to access a control from a separate thread and return to the thread again.
Edit: Its just an example I gave prog a value of the object from the form and the invoke required is put in a sub so thats not my problem.
I have 50 buttons on my form and have to write code for click of all that buttons. So my question is do I have to write separate codes for every button click event:
[code]...
I put several buttons dynamically on a form, and then try to link them to their separate event handlers with the following (simplified) code:
[Code]....
I didn't think this would be a problem, but it appears that others also search for this solution. There is an annoying DING! when hitting the Enter key in a ComboBox in VB.Net so I sought solutions. Here is the solution I am working with. I created a new seperate Class within my Project...
Public Class ClasscboBox
Inherits ComboBox
[CODE]...
Looks good, but I am having a problem calling it from the main project. Here is what I have tried using...
Dim objcboBox As New ClasscboBox
objcboBox.OnKeyPress(KeyPressEventArgs)
However, it says thatKeyPressEventArgs is a Type and cannot be used as an Expression. I tried 'e' but no go. I am a little ahead of my classes (no pun intended) so I am likely missing something about what I am doing wrong.
I have three comboboxes so I though this would best suit my needs in the interests of writting decent code and not populating each call with repeating code.
