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all groups > dotnet framework > january 2004 > threads for tuesday january 13

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Problem: too many GDI objects in memory
Posted by morris71 NO[at]SPAM libero.it at 1/13/2004 6:45:59 PM
Hi all. I have a very frustrating problem with my VB applications (developed with VS2002/.Net1.0): every application (even "stupid" two-forms application :-( ) seems to allocate GDI resources when a form is "opened" and doesn't release them after closing. This "problem" (or bug? or coding erro...more >>


Help! .NET connection pool maxout
Posted by Wayne Xu at 1/13/2004 6:16:18 PM
I am maintaining a "real time report" system written in .NET/SQL server, it include one updater filling data into tables and a web application pooling data from the tables. Both running in the same time. Web application create a new SqlConnection object when the page needs pooling data. It closes...more >>

Instance or no instance...
Posted by Scott M. at 1/13/2004 5:24:54 PM
I know that if a class has shared members, I don't have to have an instance of the class to use the member(s) (i.e. messagebox.show). But, does this mean that a class that does not require an instance to use it MUST be using shared members. For example, why am I allowed to do this without an ...more >>

Windows Counts with C#
Posted by Andres at 1/13/2004 5:16:05 PM
Hi, i have this questions: 1 - How can i create user counts in Windows with C#? 2 - How can i set permissions for the counts with C#? 3 - How can i start an application with one of the created counts? Thanks for any help....more >>

SendMessage to Internet Explorer
Posted by Jay Drozd at 1/13/2004 4:26:30 PM
I'm trying to write my own small 'wedge' application that will allow data from a serial I/O connection to be placed into whichever textbox has the focus at a particular time. I have seen them done, but I am trying to write my own. I can call the SendMessage API to any other textbox and it works...more >>

Perfmon equivalents of Process.<?> memory fields?
Posted by Bert Hyman at 1/13/2004 4:04:56 PM
[I posted this earlier to what was probably the wrong newsgroup] There are a number of memory-related fields in the Process object that appear to be similar to counters under the Process object in Perfmon. Is there a mapping of the Process field names to the Perfmon counters? Are they rea...more >>

.NET applications without Framework???
Posted by zurg at 1/13/2004 3:55:42 PM
Hi! I'd like to run my app on a clinet machine that doesn't have .net framework installed... I'm thinking about something like this: I go to a client computer with a CD with my app and libraries that it uses. I register this libraries and run my app. It gather some information and end work. Th...more >>

Visual Studio License question!!
Posted by Vivek at 1/13/2004 3:30:50 PM
I have a question regarding Visual Studio License. If I bought license for newer version of Visual Studio .net license, will that license is good for older version of Visual Studio? In other words Visual Studio .net license is backward compatible with older version on Visual Studio product?? T...more >>



Using socket with objects
Posted by Sebastiano at 1/13/2004 3:23:55 PM
I want to use socket technology for passing object between different machines. But I saw that Socket.Send accepts only array of bytes. What can I do? Do I have to serialize the object in XML? Bye Sebastiano ...more >>

Button Stop Responding
Posted by Diogenes Dilone at 1/13/2004 1:56:41 PM
all of a sudden on our web application ours buttons stop working, yet when we just created a new page with a button it works. Does anyone have any clue? Thanks D ...more >>

HttpWebRequest with authorization
Posted by Jochen Hahnen at 1/13/2004 1:50:14 PM
Hello, I have a problem connecting to a webserver with basic authentication. I am using the compactframework so I can not use the class CredentialCache (this was working fine). First of all I was searching for a solution using NetworkCredential: Code : try { Uri url = new Uri(@"htt...more >>

Java
Posted by j_589 NO[at]SPAM hotmail.com at 1/13/2004 1:07:07 PM
Simple question deserve simple answers. Does Microsoft .NET support Java?...more >>

Evaluating a null in VB
Posted by Schoo at 1/13/2004 1:00:10 PM
In earlier versions of VB I used to use the "IsNull(<variable>)" code to check for null values in a dataset. This no longer works in .NET. What is the proper way to validate a varialbe in .NET to see if it is a null? Scott ...more >>

Help! Need to print a report from a mobile device!
Posted by Callon Campbell at 1/13/2004 12:58:51 PM
Hello, My name is Callon Campbell. I'm designing/developing an application that will use the .NET Framework and the .NET Compact Framework. I haven't had any experience using the Compact Framework, Remoting or Web Services. Here is the situation. We're developing a .NET application whi...more >>

base class System..Web.UI.Page is not installed
Posted by Ralph at 1/13/2004 12:36:49 PM
Hello, I recently upgraded from 1.0 framework to 1.1 framework. After upgrading I get the following error when I try to create a VB asp.net application and try to open the form in disign view. Error : The file failed to load in the Web Form designer. Please correct the the following...more >>

Do *this* pointer breaks overriding implementation?
Posted by Eric Chaves at 1/13/2004 12:31:14 PM
Hi fellows, According to the C# language specification (10.5.3), Every virtual method has a "most derived implementation" determined by a 3-step rule. If I invoke the virtual method from a normal variable, everything is ok. However if I call it inside a non-virtual method from the base class, t...more >>

Export data from grid to Excel
Posted by Deva at 1/13/2004 12:22:18 PM
Hello All, Is it possible to export data directly from MSH Flexgrid to MS Excel? There is some problem in exporting data from HFlex grid populated with Hierarchical recordset.This recordset is created by using Shape..Append commands.The Hierarchical recordset has parent -child and grandchild hi...more >>

Receiving mail using .Net
Posted by Woland at 1/13/2004 11:31:26 AM
Greetings, Can anyone tell how to get an email massage using .Net Framework? In System.Web.Mail are SMTP classes/namespaces only. No POP3 classes :(. Woland ...more >>

UDP Packet self-construction?
Posted by Jonathan at 1/13/2004 10:10:43 AM
Is there any Class in C# which provide access to construct a UDP packet myself??? Currently I am using the UdpClient class in C#.... however, its method send(byte[] , int length, IPAddress dest, int port) only allow me to send some bytes to the other side......but what i need is to cons...more >>

Advapi32.dll missing function
Posted by Bilal at 1/13/2004 9:51:11 AM
Hi, I was trying to import the CreateProcessWithTokenW function from advapi32.dll into .Net (from other source code I found on the internet), but for some reason, I keep getting "Unable to find entry point for function CreateProcessWithTokenW" like it doesnt exist in the dll. I opened the ...more >>

.NET Class Sniffer
Posted by Isaac Alexander at 1/13/2004 9:47:22 AM
I am brand new to .NET. Is there a tool that will look a compiled .NET application and return a list of the classes it references. The reason for this is because I am trying to make a simple app for Pocket PC .NET and I am getting a TypeLoadException error....more >>

SQLDataTypes and Serialization
Posted by David at 1/13/2004 8:45:17 AM
I am trying to use the SQlDataTypes, instead of the standard Dot NET datatypes, because I want to be able to set variables to null if the user chooses to not to input any data. This all seemed to work fine until I tried to pass a variable declared as a sqldatatype into my Data Access ...more >>

Cyclic DLL references
Posted by Yair at 1/13/2004 8:27:38 AM
Is it possible in any way to have a cyclic DLL reference in .NET? (We need DLL A to hold a reference to DLL B, and vice versa). If it is not possible, does anyone know of any good trick of how to accomplish this? Thank you in advance....more >>

.Net Framework 1.1 and Visual Studio .NET
Posted by B Letts at 1/13/2004 7:25:31 AM
I have an older version of Visual Studio .NET (it's at least 2 years old - think I got it in Jan 2002). I recently installed .NET Framwork 1.1 and .NET Framework SDK 1.1. However, it doesn't appear that Visual Studio will use it. When I go into Help-About Visual Studio, it lists the follow...more >>

Redistribution license requirements
Posted by Tobias at 1/13/2004 4:59:20 AM
Hi We are developing a tool based on the .NET framework, now we are going to put together an installer and my question is if we can redistribute the .NET framework on the CD? Are there any leagal issues of re-distributing it on a CD? Any good links of information? Regards Tobia...more >>

Datagrid
Posted by Karthikeyan at 1/13/2004 2:53:18 AM
How do I get corresponding values from Datagrid during Update and Delete Events of Datagrid ? Iam using C# as code behind file...more >>

Testing for an empty string
Posted by Edward Diener at 1/13/2004 12:04:50 AM
Is there some obscure reason why there is no System.String.IsEmpty() method to test for an empty string rather than the more verbose System.String.Length == 0 ? ...more >>


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