Calling A COM Object (MSScriptControl.ScriptControl) From .Net?
Oct 24, 2011
I am currently trying to maintain a VB6 module that it is being called from a vbscript. The module needs to have a reference to the MSScriptControl.ScriptControl COM object. However, I obtain a 80040154 error. I went ahead and registered the component using the C;WindowsSysWOW64Regsvr32.exe but then I get that the entry-point DllRegister was not found.
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May 1, 2009
How do I add an object with parameters to work with MSScriptControl, example:
VBScript.AddObject("GetNPCHP", NPC.GetHP(byval npc_hp as integer), True)
This doesn't compile.
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Nov 11, 2010
I hope the question makes sense, anyways. I'm looking to know if in VB.NET, when we call an object's constructor, is there some kind of a reference that points back to the caller? I'm interested because of a corner case where I want the object being created to first be able to validate the existence of some data in the caller before it allows itself to be created. If this validation fails, I plan on throwing an exception. This corner case will never happen at runtime unless the object being created is used improperly by a programmer. The object being created is not inheriting the object I want it to validate, so I can't do anything with the MyBase qualifier.
It's bit of a "future-proofing" issue that I have a (bad) habit of doing. Not critical -- I can always leave stern comments behind as a last resort. Wanted to know if this was possible.
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Jun 13, 2012
I call the function GetDataTable and when it gets to the return line, I get the error message: Object reference not set to an instance of an object.
Dim DB As New DBConn
Dim gd As New DataAccess.GetData
Dim DT As New DataTable
[Code].....
Updated. I'll see if I can update with the DataAccess.GetData code. I didn't originally put it in there because our shop use it all the time and have no issues with it.
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Apr 18, 2010
I've almost accomplished getting method parameter name and values. [code] I'm using using vb.net 2005 /Vista/Microsoft Script Control 1.0
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Aug 3, 2011
How do I use AddObject on Forms? I get an Invalid cast Exception.
CODE:
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May 18, 2010
I'm trying to run some VBSCRIPT from within my application. This works fine when I run my program from within VB. But once I add "UIAccess=true" to my manifest and digitally sign my exe with my certificate, I am unable to run the code any more. It gives errors when I try to interface with any program saying "429: ActiveX component can't create object:'myApp.Application'". Anyone have any idea why it would run fine in the IDE but not with an application with uses UIAccess? Here is the code:
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May 1, 2009
I figured out my more recent issue, which took me 2 days all because my string functions are giving errors in VBScript using MSScriptControl, but any function that returns another datatype value is returning correctly.
[Code]...
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Mar 18, 2009
I'm building a DLL with several "master" objects that need access to the app LINDataContext.The DLL will serve several projects with different dataContexts, so I need the DLL can call the object that it's inside the EXE.What is the best or elegant way to do it?Edit: ClarificationCode example of what I'm trying to do:
'DLL
'---
Public MustInherit Class MasterObject(Of T As Class)
[code].....
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Jun 26, 2011
Version: visual basics 2008
Problem:
Form 1 contains a SWF object, which is called FlashGame (it has a movie set, which is a game)
Form 2 contains a button to set a variable on the FLashGame.
Example
Call FlashGame.SetVariable("variable will be here", 1)
That simple coding works when the button to call that SetVariable command is on the same form as the FlashGame, but I need them to be on different forms.
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Jul 6, 2009
I have a statement that will call a Sub.
Charts(CurChartNo) = Server.CreateObject("ChartFX.WebServer")
Call InitChart()
Inside this sub, I will assign values to the properties of the Charts object that is
Public Sub InitChart()
Charts(CurChartNo).RGB2Dbk = &HC0FFFF&
Charts(CurChartNo).Chart3D = False
[code]....
But the Charts is not recognized in the Sub. This is current program under ASP, I am converting to ASP.Net.
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Sep 15, 2011
Calling method in anonymous object?This works:
Call (New MyForm).Show
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Jul 5, 2009
in vb I can do that
sub SetFocusControl(byref ctl as object)
ctl.Focus
end sub
in c# the compiler complaint that object doesn't have a Focus method
void SetFocusControl(ref object ctl)
{
ctl.Focus();
}
how can I do the same in c#?
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Aug 29, 2011
How can I access the values stored in a session object with a class in asp.net?
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May 4, 2012
I want to see if there is a way to do this... I'm Using vs2010 with the WP7 SDK. (VB.NET)
I am declaring this in the global scope.
public objGame as object then say i have classes: Game1 and Game2 for the sake of the example we'll just say both classes have an Update() function
I want to set objGame = Game1 (or Game2) and then be able to call objGame.Update()
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Jun 3, 2011
I'm developing this procedure using a timer object. The thing is the procedure is not in the timer's event procedure but I want it to depend on the timer's interval when executing, it's just not calling the timer procedure. How can u declare objects and use their event procedures in code.
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Apr 15, 2010
I'm not entirely sure what to call what C# does, so I haven't had any luck searching for the VB.Net equivalent syntax (if it exists, which I suspect it probably doesn't).
In c#, you can do this:
public void DoSomething() {
new MyHelper().DoIt(); // works just fine
}
But as far as I can tell, in VB.Net, you must assign the helper object to a local variable or you just get a syntax error:
Public Sub DoSomething()
New MyHelper().DoIt() ' won't compile
End Sub
Just one of those curiosity things I run into from day to day working on mixed language projects - often there is a VB.Net equivalent which uses less than obvious syntax. Anyone?
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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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Jun 22, 2009
I'm not sure if I'm going mad, it's always a possibility. But is it possible to call a shared member of a class given its 'System.Type' object?
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Oct 5, 2010
So if I create an object test, and it has a property color. When I add this object to an array list I typically can access this using myarray(0).color but intellisense doesn't 'know' that I have a 'test' object inside the array. It would let me type myarray(0).whatever but would then crash if I made typo. It seems like I should be able to let it know what type of object I am trying to work with inside the arraylist. In code maybe something like this
[Code]....
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Apr 7, 2011
I am messing around with some Excel Automation just to get my feet wet and want to call some specific cells in my spreadsheet just for testing. I have one form in the project including a button. My question is how do I tell the button where to navigate to the cell to be tested?
My code for my Excel class is as follows:
Public Class Waybill
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim oExcel As Object = CreateObject("Excel.Application")
Dim oBook As Object = oExcel.Workbooks.Open("C:\TesterXL.xls")
[Code] .....
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Jul 2, 2010
I have a Visual Basic application using Createobject("ScriptControl") to convert a user input like 3+3 to 6. This worked perfect under Windows XP and even Windows 7 but on my new Windows 2008 Server (64 bit) it gives an error: Cannot Create ActiveX component. Should I register or refer anywhere ? Should I install anything ?
Dim SControl = CreateObject("ScriptControl")
SControl.language = "VBScript"
Totalfee = SControl.eval(TotalfeeTextBox.Text)
[code].....
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Oct 9, 2009
Our VB.NET application has a .NET dll, with a registered TLB file; so that VBA in Microsoft Word and Microsoft Excel can call into the application. The application functions correctly except when it is called into via MSO on Vista. This functions correctly on Windows XP machines but on Windows Vista and Windows 7 machines it is returning a 429 error. A reference to the TLB file can be assigned in the VBA References dialog box, on Vista.It doesn't appear to be a problem in our application as a simple Test libary does the same thing. Microsoft Applications have been 'Run As' Adminstrator, and Vista UAC is turned off, but I am thinking there is perhaps a security issue?
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Sep 26, 2010
Use the "new" keyword to create an object instance & Check to determine if the object is null before calling the method. I'm reading text from a text file using the following [Code]
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Nov 25, 2011
I have am using a Twitter streaming class library, and would like to update a listbox when a new tweet is posted. I have it all set up to the point where a message box will show when a tweet comes in, but when I try to insert this tweet into a listbox I get this error: The calling thread cannot access this object because a different thread owns it. I don't know what I need to do in order to insert this tweet.
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Jul 10, 2010
I am somewhat new to object oriented programming and am attempting to flatten a Linq object hierarchy by using a shim class.how to initalize a derived class with property values from a base class?I have two objects, a base object with about 100 properties, and a derived object which inherits from the base object and adds a few additional properties beyond those of the base object. My simple constructor creates the derived object, but I am looking for a way to initialize the derived object properties with values from the base object.Right now I am using reflection to iterate over the properties individually and I suspect there may be a better way. The following example shows my shim class constructor for the derived class, and two properties:
newProperty1 - a new string property of the derived class
flattenedProperty2 - a new string property of the derived class, copied from a 2nd-level object of the base class
Code example:
Public Class derivedObj
Inherits baseObj
Private _newProperty1 As String[code].......
Is this the correct constructor approach to flatten the object hierarchy using a shim class? My second question relates to initialization of properties in the derived class. The constructor above creates the derived object, but what is the best way to initialize the derived object properties with values from the base object? The following code uses reflection to iterate over the properties individually, but I suspect there may be a better way.
Code example:
' property names are in the string array fieldNames
'baseObjQuery is an ienumerable of baseObj
'derivedObjList is a list of derivedObj[code].....
Is there a simple way to initialize values for the properties in the derived object based upon the values of the common properties in the base object?
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Jul 29, 2011
I am getting following error whenever I want to use IIf function inside entity framework query.
LINQ to Entities does not recognize the method 'System.Object IIf(Boolean, System.Object, System.Object)' method, and this method cannot be translated into a store expression.
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Apr 16, 2010
What do I need to convert?
Dim CEESearchByAppNo = From CEEsearch In dbCEE.tblScanneds _
Where CEEsearch.AppNo = iAppNo
[code].....
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May 8, 2009
How do I calculate the direction an object is facing in degrees, if object A is at x1, y1 and facing object B which is at x2, y2?
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Dec 31, 2009
Occasionally I encountered this exception message while trying to download file from a server using System.Net.FtpWebRequest and System.Net.FtpWebResponse Object.
Download a file.ftpRequest_DL.Method = WebRequestMethods.Ftp.DownloadFile get the response object
Dim ftpResponse_DL As FtpWebResponse = CType(ftpRequest_DL.GetResponse, FtpWebResponse)
[Code]...
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