tagged [c#-2.0]
Capturing KeyDown events in a UserControl
Capturing KeyDown events in a UserControl I have a user control with several child controls. I need the user interface to react to keypresses, so I decided to put the handling code in a MainControl_Ke...
How can I evaluate C# code dynamically?
How can I evaluate C# code dynamically? I can do an `eval("something()");` to execute the code dynamically in JavaScript. Is there a way for me to do the same thing in C#? An example of what I am tryi...
- Modified
- 10 Apr at 19:39
Unable to call Dispose?
Unable to call Dispose? This one has confused me a little... Attempting to dispose of an XmlReader Provides the following error: > 'System.Xml.XmlReader.Dispose(bool)' is inaccessible due to its prot...
List of new features in C# 2.0, 3.0 and 4.0
List of new features in C# 2.0, 3.0 and 4.0 I worked on the .NET 1.1 project for a long time, and I was stuck at C# 1.0 and now I would like to catch up with the latest and greatest. Google returned a...
Are event subscribers called in order of subscription?
Are event subscribers called in order of subscription? Is it safe to assume that event subscribers are called in order of subscription? Example: Is One() always called before Two() when the event is ...
How to prevent sorting of data grid view
How to prevent sorting of data grid view I am using a DataGridView on windows form. It displays just two columns. By default when the application is run, if I click on the column headers, the datagrid...
Server.Transfer throws Error executing child request. How to resolve?
Server.Transfer throws Error executing child request. How to resolve? I have a `HttpModule` in C# 2.0 which handles exceptions thrown. Whenever the exception is thrown, an error page (aspx) with some ...
- Modified
- 25 Aug at 15:37
Default value for nullable value in c# 2.0
Default value for nullable value in c# 2.0 Using C# 2.0, I can specify a default parameter value like so: Since this C# 4.0 syntax isn't available: So, is there a C# 2.0 equivalent for value types? Fo...
C# ASP.NET Send Email via TLS
C# ASP.NET Send Email via TLS In order to comply with [HIPAA](http://en.wikipedia.org/wiki/Health_Insurance_Portability_and_Accountability_Act) regulations, we need to send email from an external site...
Kill Process after certain time + C#
Kill Process after certain time + C# how do i kill a process after say 2 or three minutes look at the following code: ``` class Program { static void Main(string[] args) { try { //de...
Using C# MethodInvoker.Invoke() for a GUI app... is this good?
Using C# MethodInvoker.Invoke() for a GUI app... is this good? Using C# 2.0 and the MethodInvoker delegate, I have a GUI application receiving some event from either the GUI thread or from a worker th...
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- 23 Apr at 15:49
how to do masking/hiding email address in c#
how to do masking/hiding email address in c# i have an issue, i have to apply masking/hiding part of email address in c#. example i have this code but its giving exception for some emails. "Index was ...
The current identity (NT Authority/Network Service) does not have write access to
The current identity (NT Authority/Network Service) does not have write access to I developed a simple web application. A label and a button. On click of Button, the label will display Hello World. Wh...
Convert array of strings to List<string>
Convert array of strings to List I've seen examples of this done using `.ToList()` on array types, this seems to be available only [in .Net 3.5+](http://msdn.microsoft.com/en-us/library/bb342261.aspx)...
C#, weird optimization
C#, weird optimization I'm trying to read my compiled C# code. this is my code: But! We all know that a using gets translated to this: ``` { OleDbCommand insertCommand = new OleDbCommand("...", conn...
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- 7 May at 13:13
How to change System.Windows.Forms.ToolStripButton highlight/background color when checked?
How to change System.Windows.Forms.ToolStripButton highlight/background color when checked? I have a ToolStripButton that is used as a radio button. When it is checked, a blue outline surrounds the bu...
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- 8 Jan at 09:2
More trivia than really important: Why no new() constraint on Activator.CreateInstance<T>()?
More trivia than really important: Why no new() constraint on Activator.CreateInstance()? I think there are people who may be able to answer this, this is a question out of curiosity: The generic `Cre...
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- 3 Mar at 23:38
How to get visible row count of DataGridView after BindingSource.Filter?
How to get visible row count of DataGridView after BindingSource.Filter? I have a table with say 1640 items. I set and most of the rows disappear, leaving, say, 400 rows. I'd like to be able to tell t...
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- 4 Feb at 00:16
Why shouldn't I always use nullable types in C#
Why shouldn't I always use nullable types in C# I've been searching for some good guidance on this since the concept was introduced in .net 2.0. Why would I ever want to use non-nullable data types in...
Unable to cast COM object - Microsoft outlook & C#
Unable to cast COM object - Microsoft outlook & C# I have written this code to view the unread items in my outlook mail box and here is the code: ``` Microsoft.Office.Interop.Outlook.Application app; ...
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- 18 Sep at 19:20
What 'quota' is being referred to in this exception message: Not enough quota is available to process this command
What 'quota' is being referred to in this exception message: Not enough quota is available to process this command I have a .NET application that throws the following exception: ``` System.ComponentMo...
GetHashCode() with string keys
GetHashCode() with string keys Hey all, I've been reading up on the best way to implement the GetHashCode() override for objects in .NET, and most answers I run across involve somehow munging numbers ...
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- 23 Jul at 17:31
C# variable length args, which is better and why: __arglist, params array or Dictionary<T,K>?
C# variable length args, which is better and why: __arglist, params array or Dictionary? I recently read the following overflow post: [Hidden Features of C#](https://stackoverflow.com/questions/9033/h...
Multi-threading & db record locks
Multi-threading & db record locks Need help big time .... I need to create a .net application that will perform some bulk operations on , say around 2,000,000 records, in a table. There is a window of...
- Modified
- 8 Aug at 22:44