If I have a string that contains the name of a control is there a way to call that control's click event?
Dim a as string = "MyButton1"
Now I want to call MyButton1.Click Method or MyButton_Click Event using the contents of a.
I using VB.NET (VS 2008). I want to know if I can call a sub whereby the name of sub is in a varialbe.
For example :
Private Sub Hello()
Msgbox "Hello"
End Sub
[code]....
I know it does not work that way but how can I call a function or sub using a variable and not directly.
I have 2 question, hope somebody give me an explanation: 1. Should a local variable call dispose method and set to nothing? 2. If some method have an arguments which it is a ByVal argument, it means a method create a new object? But If it is a ByRef argument, it means a method don't create a new object?
View 4 RepliesI need to call a text box keydown event from another method. How to I create and event args for this to pass to the method?
View 4 RepliesSo Ive got some code thats in a public sub outside of my button.
Here is that.
CODE:
How can I call that method from a button click event?
What code goes between the
CODE:
This is obviously not entirely my code, E.G. the few errors from my attempt at implementing, however, before I even finish that Id like to know how to call that method from a button or form load, or any other event for that matter.
In an event handler of a tab chaged of a tabcontrol, I call a method asynchrounously, like this:
Private Sub tabDetails_Deselecting(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TabControlCancelEventArgs) Handles tabDetails.Deselecting
' we pass pageindex so that we set the index back in case the validation fails
[code].....
I need to explicitly load my data source variables and then call the insert method associated with the data source. The sample VB .net code is listed below. So is it sufficient for me to just call the Insert() method when I am ready to insert my values? Or do I need to create an insert event? You see if I look at the properties window for the data source, there is a lightning bolt icon that will generate events for the data source such as Insert,Inserting,Disposing,Init,Load etc.
Protected Sub btnSave_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Me.SqlDataSource1.InsertParameters.Add("@Title", "Mr.")
Me.SqlDataSource1.Insert()
Does calling the Dispose method on a Windows.Forms.Timer call it's Stop method? Or should I stop the timer before I dispose it?
View 5 RepliesI will try to explain what I need.Let's say that I have a class like this:
Public Class Example1 Public Sub ToBeCalled()
[Code]...
I have a Application that Crypts all Files in a Directory and the Subdirectories
Public Shared Sub CryptAllFiles(ByVal crypt As Object)
'check if this dir exists
Dim vDirInfo As New DirectoryInfo(vPath)
If Not vDirInfo.Exists Then Exit Sub
'get all files' sizes in current path
[Code]...
I have nine pictures that I need to animate -I need to use the ToString method and a counter to concatenate a file name into a string variable from the Image.FromFile method. Once the counter reaches its maximum value, and the last picture is displayed, the counter should be reset to zero or one depending on how the first image file has been name. Also a static counter variable should be incremented in the time routine. what I have so far -- I know what I have to do; however, I just do not know how to code this properly.. Right now I have this going thru a button procedure but it needs to go through a timer.
[code]....
i want to which way is better when concentration is on processing speed. i want to call a method that compute some data that method is on another form in my windows form application then what you prefer is better way 1) to call that method in another form and use returned value or create similar method in form where it is required.i want to make it's processing fast.
View 3 RepliesIn VB6 we had a code inside textBox_MouseUp to call textBox_KeyUp(-1, 0) and the signature of KeyUp was
Private Sub textBox_KeyUp(ByRef KeyCode As Short, ByRef Shift As Short) Handles textBox.KeyUp
Now when I migrate to .NET I changed the KeyUp event to Private Sub textBox_KeyUp(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles textBox.KeyUp
How can I do this call textBox_KeyUp(-1,0) now from textBox_MouseUp event?
how can i call a treenode mouse click event from any other key down event?
View 3 RepliesI am trying to use the value of one variable to call another variable of the same name.I have 2 variable one called VAR1 and VAR2.
The variable VAR1 has a value of "VAR2"
The variable VAR2 has a value of "HELP"
I want to be able to get the value VAR2 from the variable VAR1 I have defined the value of VAR2 early in the code and now I want to call that value by using the value of VAR1.The reason I am doing it this way as I have a list of 50 variables that are pulled from one system. Each of these variables have the same name as the columns of a spreadsheet. The total number of Variable stay the same but the total column headers may vary each time. I need to loop through each of the column headers match them with the variable names and add the data to the spreadsheet.
VAR1 = "VAR2"
VAR2 = "HELP"
i =1
[code]....
This is the tricky bit...if the value of the cell(1,i) = "VAR2" How do I get it to display the value of the variable of the same name In this case how will I get it to display "HELP" when I only have from the VAR1 value "VAR2" I know my code will bring back the value as a string but I want it to bring back that string as a variable and display the value of that variable?
i want to call a button click event in any other event like this form key down event.if e.control andalso e.keycode=keys.S then savebuttonclick event should be called end if
View 5 RepliesHow I can call a line of orders from event to another event,
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code].....
I have two forms: main and sub
I need to access the even procedures like textchanged,lostfoucs,changeindex of sub form so that it can be used in main form all controls placed in sub form are included in main form and hold same name and values as of sub form how should i call it from main form to access all procedure of sub form
am trying to call a very lengthy set of code from under the DoubleClick event of one control, from within the Click event of another control....without having to copy and paste the desired VERY length code from the first control into the second.
View 3 Repliesi declared a global variable button:
Dim button1 As New Button()
Now, i dont know how to add a click event in this button since it is a variable.
Assume I have a function: Protected Sub UploadFile(file As String)
End Sub Then I can do the follwing
UploadFile(file)
But I would like to do this: file.UploadFile()
Looks like Im missing logic in here, but still - is it possible to make dot-like notation?
I have a class that runs as a thread. While the thread is running, I want to call a method in that thread. I do this commonly where a thread calls a method in the GUI with a delegate. But I'm confused how to do this when the called thread is not the GUI and there are no parameters passed to the called method.
View 8 Repliesmay I just ask a seemingly simple question for which I can't find any solution throughout all the VB.NET documentation: I have to call a (non-static) method of another object (instance!) based upon the name of the method (given as a string).
View 1 RepliesI have a Form1 with a method called OrdreUpdate2 I try to run thad method from another form by using the command Form1.Ordreupdate2 in a buttonclick.
But nothing happens..What am I missing here?
I have a form and I am calling a method from a module in that form. However, how to do i call the object into the method, since Me doesn't work.
Example:
in the module:
Function printname()
Console.WriteLine("Form called with is titled:" + me. text)
[code]....
In VB .NET, when you create a user control class, you have the obligation to call the sub InitializeComponent within the constructor.If you don't you'll a warning message like this: [code]What is the mechanism used to raise this warning? Is it something I can reproduce for my own functions?
View 1 Repliesi have a problem i use a call sub procedure to do a delete records in my database for my vb .. now i have a problem when i call my sub delete proceudre in like this call GetDelete("tblName") , but in the sql query the sysem declare like this delete * from 'tblName' in my sub procedure when i set the breakpoint in which cause an exception error "Syntax error in query. incomplete query clause " anyway how to delete the quotes so i can retreive it without error
View 2 RepliesIs it possible to dynamically load a .NET DLL and create an instance of a class inside it? I will know the name of the class.
View 5 RepliesWhen should I call the Flush() method (TextWriter.Flush() / StreamWriter.Flush() / BinaryWriter.Flush() / etc) ? Should I call it everytime I finish writing a stream?
View 3 RepliesPerhaps a weird title, but here's what I'm trying to do. I have a few Tabs and each Tab has an RTB. I'm searching for a word and when the final word is found it selects the first tab again << and here is where the code needs to continue. It should call the same event.
[Code]...