Convert String To Form Object To Invoke Function Using 2008?

Mar 1, 2012

In My project, i have Multiple Forms in which same Function name with return values. i like to convert the String name to Form Object and try to call the user defined function in the corresponding form from the Module I am using vb.net 2008 .

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Function That Will Convert Input String To Actual Object

Jan 12, 2011

I have an object with a number of properties (let's say object.one, object.two, object.three). There are about 30 of these properties and they all hold a string ("Pass" or "Fail"). Right now the existing code checks whether the property has value "Pass" or "Fail" and then runs some code that prints stuff out. That is, the same snippet of code is duplicated 30 times, one for each of these properties.

The code looks something like this
If (object.one = ... )
...
End if
If (object.two = ... )
...
End if
If (object.three = ... )
...
End if

I want to use a loop to clean this mess up (each block is huge), but am not sure how to do it. I was thinking perhaps there was a way such that I might be able to construct a string like "object.one" and run some function that will tell the compiler that this is actually an object's property? That way I could create an array containing the object's name like my array = {"object.one", "object.two", "object.three"} and then do something like, in pseudocode
For each string in my array
If (some_function(string) = ...)
...
End If

Essentially, it would take those massive blocks of duplicated code and reduce it to just one block. Is there such a some_function that I am looking for? This is in VB.net.

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How To Convert String Into Object Form

Jun 22, 2010

i need help on this simple case [code]How could i do 'that bold area'? xString actually was dynamic variable i got from Database with SQL syntax.

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Convert String Variable Into Form Object?

Jun 12, 2009

I have a string value of form names in my DB so when my condition passes, the variable string will take over the value , then that value will call the form(variable) as string.

[code]...

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Visual Studio 2008 - Invoke Onclick Function In Html From .net Or C#?

Mar 15, 2010

I am trying to invoke the onclick function in an html page that displays content. I am using the httpwebreqest control and not a browser control. I have traced the function and tried to find the link it calls but looking at the code below I tried inserting the link into the browser with the main url but it does not work.

[Code]...

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.net Delegate And Invoke / Object Reference Not Set To An Instance Of An Object

Jan 28, 2012

I'm having problems with a program where I've got some multi threaded activities addressing the states of check boxes, which in turn are created by a user definable interface To achieve this I'm using the code below, which works on some occasions and crashes on other occasions when it stops with the following error NullReferenceException was unhandled Object reference not set to an instance of an object.Delegate Sub CBSetCallback(ByVal cb As CheckBox, ByVal value As Boolean)

Private Sub SetCheckBox(ByVal cb As CheckBox, ByVal state As Boolean)
If cb.InvokeRequired Then
Dim d As New CBSetCallback(AddressOf CBset)
Invoke(d, New Object() {cb, state})

[code].....

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VS 2008 Form.Invoke() Hangs Up?

Jun 23, 2011

I'm using the following code to close a form (Inherits System.Windows.Forms.Form) but it sometimes hangs up at the Invoke() ...

Private Delegate Sub closeFormDelegate()
Private Sub closeForm()
If myForm.InvokeRequired Then

[code].....

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Convert String To Object?

Mar 2, 2009

exampledim str as string = "button1"do you see?string of str is "button1"now i want to string of str to object

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Convert String Value To Name Of Object?

Aug 2, 2011

What I am trying to do is scan through the arraylist that has the number of the label control and concatenate this to the word "label" to end up with "label1", "label2", etc. Then I can then set it's visible property. The values in the array are based on tests in the code.

I haven't hit upon the right way to convert the string "label1" to the name of an object.

HTML
Private Sub FlagAnswers(ByVal wrongArray As ArrayList)
Dim sCtrName As String

[Code].....

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Convert List Of String Into An Object?

Mar 6, 2012

I am looking for a way to convert my List(Of string) into an Object in vb. So in the end it would be the same as declaring Dim cArray() As Object = new Object. Can anyone point me to how i can achieve this? I cannot use the LINQ .ToArray as that creates a string array and this is not acceptable for my work. I need to pass this object into another one that has the parameter (aArray as Object).

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Convert Object Date To String In .net?

May 29, 2012

I need to convert item.MergedDate, which is a date, to a string.Code as follows

If item.MergeDate.ToString() = "12/31/9999 11:59:59 PM" Then
item.MergeDate = ""
End If

Obviously this is a terrible attempt, but

I have tried = Nothing and didnt work.

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Convert The String To A Date Object?

Feb 18, 2009

I have a string in the followin format: "Jan06", Feb12 and so forth.

I need to be able to convert this string to a Date object and substract 7 days from it in order to do some validation.

how to convert the above string to a date object?

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How To Convert Object To String Of Array

Feb 9, 2012

I have a problem here for converting object of array to string of array in my VB.Net code. The object of array is quite long and contains 6 sets of data here.

Dim varReturnResult As Object
Dim varMapData As Object
Dim StrMap() As String
varMapData = varReturnResult(2)
StrMap = Split(varMapData, vbLf)

I encountered this error "Conversion from type 'Object()' to type 'String' is not valid." when trying to retrieve the StrMap value.

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How To Convert String To URI For WebBrowser Object

May 27, 2007

I'm reading a string from a text file, and want to use that string as the URL for my web browser object. The error I get is it needs to be URI, but I am completely lost on how to make a string into URI.

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How To Convert String To Variable Object

Feb 6, 2011

Here's my problem :
Let say I have a variable called A
Which value is 100 ( A = 100)

In a form, I have a textbox, where I want to enter a variable name
textbox1.text="A" for example

Then I want to display the value of that variable
msgbox (somefunction(textbox1.text)), which will popup 100

I read some info about Reflection, but they all seems to refer to controls and not simple variable

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VS 2008 Convert A DataGridViewRow Object To A DataRow Object?

Aug 31, 2009

Is there a way to convert a DataGridViewRow object to a DataRow object?

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How To Convert String To Date / Time Object

Feb 27, 2012

I have a string variable that contains "19:39:43", I would like to convert that to a date object. When I try I get a formatexception was unhandled error during debugging. I want to convert it to format of hours:minutes:seconds but cannot see how this can be done..

Code snippet:
Dim strtxt As String = "19:39:43"
Dim Datevar As Date = Date.ParseExact(strtxt, "HH:mm:ss tt", Globalization.CultureInfo.CurrentCulture)
I tried just "HH:mm:ss" but not sure if that worked...

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VS 2008 FilesystemWatcher - Treeview.invoke - Error "invoke Or Begininvoke Cannot Be Called On A Control Until The Window Handle Has Been Created"

Aug 27, 2010

I have a filesystewatcher object. On it`s event it runs a procedure which fills a treeview with a data. I had problems with treeview methods, but when I run them using invoke method everything is ok. But I still have one problem. When I load the form for the first time, everything works fine. But, when I then close the form (me.dispose, me.close), and load it once again, when Filesystemwathcer start the procedure i have an exception "invoke or begininvoke cannot be called on a control until the window handle has been created" trying to run a treeview.invoke method?

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VS 2005 - IsDate Function - Check A String For Convert Able To Valid Date Format

Aug 15, 2010

with a system of regional date configuration as dd/MM/yy

isdate("13/08/10 10:00") ' returns true, but with a system of regional date configuration as MM/dd/yy

isdate("13/08/10 10:00") ' returns false

how to handle this situation, all i need is i want to check a string for convert able to valid date format & then convert the same.

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Invoke A Function With Parameters?

Jan 30, 2012

I use this code to invoke a function from a string, which I build in my application:

Public Class Form1
Dim f As New Foo
Dim methodName As String
Dim result As Object

[code]....

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Multithreading - Me.Invoke Doesn't "Invoke" - Threads Stall On Invoke Statement

Mar 16, 2010

I've got the following code:

[code]...

The problem is that, when I call the "SetStatusBarText" sub from another thread, InvokeRequired is True (as it should be), but then my threads stall on the Me.Invoke statement - pausing execution shows them all just sitting there, not actually invoking anything.

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Invoke A Javascript Function Through COM Interop?

Aug 11, 2009

I have a VB.net class registered for COM interop which I'm instantiating within an HTML page using the following code:

<script type="text/javascript">
var MyClass = new ActiveXObject("Namespace.TestClass");
</script>

[code].....

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Invoke Ctrl + F Function For Searching?

Feb 6, 2010

I wanna invoke a function when user presses ctrl+F .The function works same like searching a string in word or notepad but in my project i m searching whether entered string exist in datagridview. How to get the key code in vb.net

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Invoke A Function Unknown At Design Time?

Sep 17, 2010

is it possible to invoke a function which name I know at runtime only.

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Invoke C++ Method With String Handled As String Array

Nov 17, 2010

I have a C++ method with this signature:

[Code]...

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VS 2008 Function To Convert 8.5% To .085?

May 4, 2010

Looking for the function to convert 8.5% to .085

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IDE :: How To Calling Form Object Public Function From A Module

Apr 5, 2010

I am using VB2008 In the Form1, i have coded

Public Function getText(ByRef ctlName As String) As String

getText = Mfg.get_TextMatrix(Mfg.Row,Mfg.Col

[Code]...

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.net - Which Cross Threading Invoke Function Is Better For A Control That Is Inherited

Nov 9, 2009

I have a relatively simple question regarding the best way to call the DataGridView.Rows.Add function when it is inherited into the current control. Which is the best way to make the call to the inherited control? Call it directly in the invoke or call it using recursive-like function? They both seem to produce the same result, a row gets added and the quantity is returned, but which is the most efficient?The delegate: Private Delegate Function ReturnDelegate() As Object

The two ways are:

A)
Private Overloads Function AddRow() As Integer
If InvokeRequired Then
Return CInt(Invoke(New ReturnDelegate(AddressOf AddRow)))

[code]....

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Function That Takes ByRef Parameters Using Control.Invoke ?

Nov 10, 2005

I'm currently invoking a function that takes ByRef parameters using Control.Invoke (which I notice specifies the Object parameter array to be ByVal) but the array of parameters I give it isn't updated by the function. Is this possible with VB.Net 2003 or must there be some error in my code?

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Invoke Parameterized Function Delegate From Background To UI Thread?

Oct 4, 2010

What is the Invoke syntax to marshall data from a background thread receive callback method to a function on the UI Thread?(Form1).

Public Class Form1
MyDelegate = New DisplayData(AddressOf DisplayData)
Private Sub Form1_Load()
MyDelegate = New DisplayData(AddressOf DisplayData)

[code]....

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