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Filter by Day: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Interface casting required question Posted by Rene at 4/9/2006 11:42:27 PM Supposed that a class "MyTestClass" implement interface "IMyInterface" (not
explicitly).
Now suppose that I make an instantiate of "MyTestClass" and then use this
instance to pass it to a function with an argument that requires
"IMyInterface" such as:
private void SomeFunction(IMyInterfa...more >>
Exception error generated when accessing Access database Posted by Steve Teeples at 4/9/2006 10:02:01 PM I am writing my first database application. I am unable to even get to first
base because I can't seem to access the data in the database. Each time the
"Fill" command is executed I get an exception ["An error has occurred while
establishing a connection to the server. When connecting to SQ...more >>
Why doesn't trace write timestamp? Posted by Brett Romero at 4/9/2006 8:29:28 PM I have this in an app.config file:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.diagnostics>
<trace autoflush="true" indentsize="2">
<listeners>
<add name="myListener" traceOutputOptions="Timestamp"
type="System.Diagnostics.TextWriterTraceList...more >>
Some basic session state questions Posted by codegreen9 NO[at]SPAM yahoo.com at 4/9/2006 8:28:40 PM Hi,
My understanding is that session info must be stored using
Session["var"], which means text data. What I'd like to be able to do,
is keep an object alive throughout a user's session, without having to
serialize my data into text, save it as Session["var"], and restore it
using Session["v...more >>
Where is declare OracleConnect? Posted by smit at 4/9/2006 8:01:40 PM Where is declare OracleConnect?
For access from forms.
--
Smit from Russia :-)
320121750...more >>
Lifetime of Static Classes and Variables Posted by Chuck Cobb at 4/9/2006 7:24:45 PM I am creating some static classes with static methods and static variables,
but I have a question: What is the lifetime of static classes and static
variables? Is there any risk that these items might be garbage collected
if they're not used for a period of time?
For example:
pub...more >>
Reflection API Posted by Skandy at 4/9/2006 3:27:44 PM Hello All:
I'm stuck with this. I'm trying to obtain the SelectedValue property
for a combobox control on UserControl using reflection.
So I write:
PropertyInfo pi =
objControl.GetType().GetMember("cmbComplex").GetType().GetProperty("SelectedValue");
This always returns a value null, and...more >>
new to .net Posted by genexk NO[at]SPAM gmail.com at 4/9/2006 3:25:07 PM Hi everyone,
I am new to .net development, and still have a few questions.
Since I am doing a pocket pc project, does it mean whatever I wrote in
c# will work on pocket pc because of the indepency of .net cf?
In addition, if I already have some code written in C++, how can I use
them without wr...more >>
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threading issue Posted by Rick at 4/9/2006 3:06:48 PM I have a form A that is running on thread A.
I have a timer that fires on thread B and tries to open form A.
Using .Net 2.0 it will throw a cross thread operation not valid error.
If I first test form A to see if A.InvokeRequired, it always returns
false.
If I suppress the cross thread errors, ...more >>
Semaphores Posted by Steven Spencer at 4/9/2006 11:31:01 AM Hi, I'm doing an IT degree at university, and my lecturer's do not teach
m$ technologies. I was wondering if anyone could point me to the
implementation of mutex's and semaphores in .net? Or the microsoft
equivalent of them....more >>
How to suppress the "new protected member declared in sealed class"? Posted by NetronProject NO[at]SPAM gmail.com at 4/9/2006 9:59:14 AM My sealed class defines the necessary deserialization constructor:
protected SomeMethod(SerializationInfo info, StreamingContext
context){..}
which generates the well-known warning "new protected member declared
in sealed class". Since this constructor is used by the CLR and not
supposed t...more >>
system.windows.form.datagrid control in vb6 form Posted by Rajesh Kumar Choudhary at 4/9/2006 9:48:02 AM Hi,
I want to use the system.windows.form.datagrid control present in .net 2005
or 2003. Is it possible to use this? Please let me know if it is not
supported.
I have seen and used the classes from FCL using system.tlb or mscorelib.tlb
from dot net framework.
I could use ArrayList succe...more >>
Finding the caller name Posted by Mike9900 at 4/9/2006 9:21:02 AM Hello,
We need to know the module that called the other module in that module.
For example, StartMyTransaction module,is called by module 'A' and after
that module 'B' calls EndMyTransaction, but we do not want this module to end
the transaction by calling EndMyTransaction. If we know who ...more >>
How to remove/disable the form's close (X) button? Posted by ohadasor NO[at]SPAM netvision.net.il at 4/9/2006 6:25:18 AM Hello,
I have an MDI child, which I need to be opened as long as the mainframe
is opened. The problem is that the user can close it using the X button
in the form's top-right edge.
How can I make this button disappear, or at least disabled?
I'm using C# with .NET Framework 2.0.
Thanks ...more >>
How to pass unknown datatypes to methods? Posted by DrPete at 4/9/2006 5:57:58 AM Hi
How do you go about passing values to methods if you don't know what
the values datatype is?
For example:
myParm = sqlCommand.Parameters.Add("@Name", SqlDbType.VarChar, 30,
"Name");
myParm.Value = dataRow["NAME"].ToString();
I wish to have a method to validate a value instead of th...more >>
programmatic database access Posted by williamphenryjr at 4/9/2006 5:06:49 AM
This is a long post. If you have answers I'm ready. If you have we
links, that'd be great too. I'm a Junior/Senior in Computer Science a
Washington State University, so you can make some assumptions abou
terminology I'll be familiar with based on that.
I am trying to write a class that will ...more >>
Add/Remove programs list Posted by sharon.azulay NO[at]SPAM gmail.com at 4/9/2006 3:25:12 AM Hello,
I want to write my own setup procedure using csharp.
I'm not using the build in setup project because I need to install my
software more than once on the same computer and cannot do it with msi.
Is it ok if I just write into :
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
or ...more >>
Revisit Object.Equals Posted by nick_nw at 4/9/2006 2:18:17 AM Hi All,
Just been re-reading Applied MS .Net Framework Programming (been about
2 years since I last read it) and came across the chapter on Equals,
==, and GetHashCode. It dawned on me that after 2 years of c# .net
programming I have never overridden any of these methods.
But why would I?...more >>
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