com-interop

I have two .NET classes exposed via COM interop - let's say Foo and Bar, and I need to pass an argument of type Foo to a method defined in Bar. Something like this: [ComVisible(true)] public class Foo { // whatever } [ComVisible(true)] public class Bar { public void Method(Foo fff) { // do something with fff } } When I run the following VBS (using cscript.exe): set foo = CreateObject("TestCSProject.Foo") set bar = CreateObject("TestCSProject.Bar") call bar.Method(foo) I get an error: D:\test.vbs(3, 1) Microsoft VBScript runtime error: Invalid procedure call or argument: 'bar.Method' However,

I am getting this stacktrace: System.Runtime.InteropServices.COMException (0x800A13E9): Word ðú÷ì ááòéä. at Microsoft.Office.Interop.Word.Documents.Add(Object& Template, Object& NewTemplate, Object& DocumentType, Object& Visible) at Crm.DocumentGeneration.Printing.DocumentsPrinter.MergeDocuments(ApplicationClass& wordApp, IEnumerable`1 printDataItems, String tempDirectory, String template) in C:\Work\Danel.Nursing\Crm.DocumentGeneration.Printing\DocumentsPrinter.cs:line 249 After googling a bit it seems that COMException (0x800A13E9) is out of memory exception but there is enough memory on the

What is the proper way to pass an array of user defined classes from vba to .net (specifically c#) using com-interop? Here's my c# code. If I call Method1 from vba it's failing with "Array or userdefined type expected" or "Function uses an automation type not supported in visual basic". public class MyClass { public Method1(UserDefinedClass[] Parameters) { ... } public Method2(Object Parameters) { ... } } I've read a bit about the MarshallAsAttribute class. Could this be the missing piece in the c# code? Here's the vba code I'm using: Dim udt As New UserDefinedClass Dim myArray() myArray(1) =

I have a .NET assembly which I am accessing from VBScript (classic ASP) via COM interop. One class has an indexer (a.k.a. default property) which I got working from VBScript by adding the following attribute to the indexer: [DispId(0)] . It works in most cases, but not when accessing the class as a member of another object. How can I get it to work with the following syntax: Parent.Member("key") where Member has the indexer (similar to accessing the default property of the built-in Request.QueryString : Request.QueryString("key") )? In my case, there is a parent class TestRequest with a

I have created a .NET assembly that is exposed to COM according to the exceptional article Build and Deploy a .NET COM Assembly by Phil Wilson. And everything works fine in the sense that the .NET assembly is properly registered for COM, and compiled COM code can call it without any trouble. The only odd thing is that developing against the COM-exposed .NET assembly when using VB 6.0 or VBA requires that the programmer 'browse' to the exact file location of the associated .tlb file, after which everything works just fine. That is, the class library is not showing up directly within the

After moving a project from .NET 1.1 to .NET 2.0, MsBuild emits lots of warnings for some COM objects. Sample code for test (actual code doesn't matter, just used to create the warnings): using System; using System.DirectoryServices; using ActiveDs; namespace Test { public class Class1 { public static void Main(string[] args) { string adsPath = String.Format("WinNT://{0}/{1}", args[0], args[1]); DirectoryEntry localuser = new DirectoryEntry(adsPath); IADsUser pUser = (IADsUser) localuser.NativeObject; Console.WriteLine("User = {0}", pUser.ADsPath); } } } Warning messages look like C:\WINDOWS

Here's the (potential) problem: I create a COM object, and then use a 'foreach' to iterate through each element in a collection it returns. Do I need to release each individual element I iterate through in the collection? (See code below.) If so, I can't think of a way to effectively to release it from within a 'finally' statement, just in case there is an error as the item is being operated upon. Any suggestions? private static void doStuff() { ComObjectClass manager = null; try { manager = new ComObjectClass(); foreach (ComObject item in manager.GetCollectionOfItems()) { Log.Debug(item.Name)

i have the following problem. I have to read an excel file through COM interop. I am new to programming with COM interop. I search for a specific string using this: this.sheet = (Excel.Worksheet)this.excelApp.Workbook.Sheets.Item[this.sheetname]; this.sheet.Activate(); Excel.Range firstRow = this.sheet.Range["A1", "XFD1"]; Excel.Range foundRange = firstRow.Find( this.StringISearch, Type.Missing, Type.Missing, Excel.XlLookAt.xlWhole, Excel.XlSearchOrder.xlByColumns, Excel.XlSearchDirection.xlNext, false, false, Type.Missing); No i want to use the foundRange as a starting point to get another