473,224 Members | 1,721 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,224 software developers and data experts.

casting in c# works sometimes

I have a c# client dll that calls a c# component on a server. When I register
the c# component on the server, everything works great. If the component is
not accessed for a while or I access it the next day, I get a Specified cast
is not valid error. If I reregister the server component, everything works
fine. The type is a runtime type that it cannot cast to at times. The code is
below:

public HIS.CSRData.DataAccess CreateDataAccess()
{
try
{
//declare variable
HIS.CSRData.DataAccess da;

//declare type
Type oServer;

//set variable value
oServer = Type.GetTypeFromProgID("HIS.CSRData.DataAccess",
msComponentServer);

---this is where the error occurs
//set variable and create object
da = (HIS.CSRData.DataAccess)System.Activator.CreateIns tance(oServer);

//return value
return da;
}
catch{}
}

Thanks in advance for any help.
--
Keith
Jul 21 '05 #1
0 733

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

4
by: Jacob Jensen | last post by:
This question has probably been asked a million time, but here it comes again. I want to learn the difference between the three type cast operators: static_cast, reinterpret_cast, dynamic_cast. A...
35
by: ytrama | last post by:
Hi, I have read in one of old posting that don't cast of pointer which is returned by the malloc. I would like to know the reason. Thanks in advance, YTR
6
by: Carlo Marchesoni | last post by:
I have an ASP.NET/C# solution, where I can perfectly cast something I stored in the session object to a class of mine (BackEnd), as this: ->be = (BackEnd)Session;<- But if I try to do the same:...
2
by: Enrique Bustamante | last post by:
Casting arrays that works on watch and command window but not in code. My application is casting arrays in a way it should work. To test if I was doing something invalid, I wrote a test code that...
0
by: Keith | last post by:
I have a c# client dll that calls a c# component on a server. When I register the c# component on the server, everything works great. If the component is not accessed for a while or I access it the...
7
by: S. Lorétan | last post by:
Hi guys, Sorry for this stupid question, but I don't know why it isn't working. Here is my (example) code: namespace Test { class A { public string Label1; }
14
by: Daniel | last post by:
Hi guys who just answered me.....it really would have helped if i had written it right. Ok i will use better names to explain my problem. I have this: InterFaceClass ^ ClassA
7
by: William S Fulton | last post by:
I'm looking for the name of the following casting style in order to do some reading around on it and why it is sometimes used. unsigned long long ull = 0; void * ptr = 0; ull = *(unsigned...
32
by: alex.j.k2 | last post by:
Hello all, I have "PRECISION" defined in the preprocessor code and it could be int, float or double, but I do not know in the code what it is. Now if I want to assign zero to a "PRECISION"...
0
by: veera ravala | last post by:
ServiceNow is a powerful cloud-based platform that offers a wide range of services to help organizations manage their workflows, operations, and IT services more efficiently. At its core, ServiceNow...
3
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 3 Jan 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). For other local times, please check World Time Buddy In...
0
by: jianzs | last post by:
Introduction Cloud-native applications are conventionally identified as those designed and nurtured on cloud infrastructure. Such applications, rooted in cloud technologies, skillfully benefit from...
0
by: mar23 | last post by:
Here's the situation. I have a form called frmDiceInventory with subform called subfrmDice. The subform's control source is linked to a query called qryDiceInventory. I've been trying to pick up the...
0
by: abbasky | last post by:
### Vandf component communication method one: data sharing ​ Vandf components can achieve data exchange through data sharing, state sharing, events, and other methods. Vandf's data exchange method...
0
by: fareedcanada | last post by:
Hello I am trying to split number on their count. suppose i have 121314151617 (12cnt) then number should be split like 12,13,14,15,16,17 and if 11314151617 (11cnt) then should be split like...
0
by: stefan129 | last post by:
Hey forum members, I'm exploring options for SSL certificates for multiple domains. Has anyone had experience with multi-domain SSL certificates? Any recommendations on reliable providers or specific...
0
Git
by: egorbl4 | last post by:
Скачал я git, хотел начать настройку, а там вылезло вот это Что это? Что мне с этим делать? ...
1
by: davi5007 | last post by:
Hi, Basically, I am trying to automate a field named TraceabilityNo into a web page from an access form. I've got the serial held in the variable strSearchString. How can I get this into the...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.