.net

How does Array.ForEach() compare to standard for loop in C#?

I pine for the days when, as a C programmer, I could type: memset( byte_array, '0xFF' ); and get a byte array filled with 'FF' characters. So, I have been looking for a replacement for this: for (int i=0; i < byteArray.Length; i++) { byteArray[i] = 0xFF; } Lately, I have been using some of the new C# features and have been us...

ASP.NET MVC jQuery: Shoud we be concerned about a lot of jQuery/javascript on a View?

We are moving from WebForms to MVC and and using a lot of jQuery. I appears we have a lot of jQuery/JavaScript in our Views, is this common and are there any concerns about security. The obvious step is to refactor into plugins and more generic UserControls etc, but this jQuery would still be "visible" by looking at js files etc. We ar...

Convert sequence of System.Windows.Forms.Keys to a Char

Is there a way to convert a sequence of keystrokes represented by the Keys enum (i.e. System.Windows.Forms.Keys) in a Char. For example: Keys.Oem4 and then Keys.A yields the char á. It must exist somewhere in the WinAPI, because Windows does that for me, when I press keys inside a text-box... I just don't know where. Please help! thanks....

Are private classes being sealed at compilation?

Assume the following: we have class B, which is a private class nested inside class A. There isn't any class inheriting from class B. The question is: will the compiler automatically mark class B as Sealed? (NonInheritable in VB). Is there any good reason for the compiler not to mark class B as sealed? My line of thought is this: since...

Is there a .NETCF 3.5 SP1? or is it still at just 3.5?

Does the .NET Compact Framework have a service pack? If so does anyone know where the redist download is? I found this: http://www.microsoft.com/downloads/details.aspx?FamilyID=E3821449-3C6B-42F1-9FD9-0041345B3385&amp;displaylang=en But it is just for 3.5. I think that is current, but I don't want to get burned by setting up older st...

Problem with Efficient Gridview paging without datasource control

I am trying to do efficient paging with a gridview without using a datasource control. By efficient, I mean I only retrieve the records that I intend to show. I am trying to use the PagerTemplate to build my pager functionality. In short, the problem is that if I bind only the records that I intend to show on the current page, the grid...

Custom extension download problem

Hi all, In my web application, I am generating a document with a custom extension and providing the user with the link to download. The download fails with custom extension but goes fine with predefined extensions like "xml". I have no idea what is going wrong! Is this some kind of access rights problem? I am running it under Windows 2...

Where to store application global variable?

I'm using silverlight, project structure is similiar to any other .net app. I have a map control that I would like to store what mode it is in (either road or aerial) so that other controls can access this. Where do I put this enum variable, I plan to use 2 way binding on it so both are updated when either changes. Thanks. ...

How to dermine a newly created record in RIA Services

Hi everybody! Using WCF RIA Services, how is it possible to determine if a record is newly created and attached to the domaincontext? Thanks in advance ...

StringTemplate Variable with Object Properties

I am starting to use StringTemplate for the first time, and am stuck trying to figure out how to get StringTemplate to do something like the following: article.st $elemenets:article/elements()$ article/elements.st $if($it.is_type)$ $it:article/type()$ $elseif($it.is_type2)$ $it:article/type2()$ // also tried: $it.value:article/type2...

DataTable DataRow Select String with Quotation Marks

Hi, My string include quotation mark; the select statement crash. vm_TEXT_string = "Hello 'French' People"; vm_DataTable_SELECT_string = "[MyField] = '" + vm_TEXT_string + "'"; DataRow[] o_DataRow_ARRAY_Found = vco_DataTable.Select (vm_DataTable_SELECT_string); I cannot use this statement: string filter = "[MyColumn]" + " LIKE '%" + ...

VB .NET Shared Function if called multiple times simultaneously

Consider I have a shared function:- Public Shared Function CalculateAreaFromRadius(ByVal radius As Double) As Double ' square the radius... Dim radiusSquared As Double radiusSquared = radius * radius ' multiply it by pi... Dim result As Double result = radiusSquared * Math.PI 'Wait a bit, for the sake of t...

Close reader before closing connection

Should you always close a DataReader before closing the connection, or is it okay to just close the connection? By just closing the connection does that effectively close the reader? (This is for c#.net 3.5) Thanks! ...

CRM plugin to execute when opportunity is reopened

I need to write a plugin for Dynamics CRM 4.0 that executes when a closed opportunity is reopened in order to change the salesstagecode. My questions are: When I register a new step to the plugin, what attribute(s) should I filter on? What property on the entity should I check the value of? and What should I look for the value of th...

Registration-Free .net libraries with legacy VB6 applications

I've been searching for hours for resources on how to successfully use registration free Com interop. I've found some resources on using old COM libraries in .net applications, but allmost nothing on using new .NET libraries in COM applications (more spcecific: VB6 applications) Basically my search gave two useful resources: http://msdn...

Convert/Cast base type to Derived type

I am extending the existing .NET framework class by deriving it. How do I convert an object of base type to derived type? public class Results { //Framework methods } public class MyResults : Results { //Nothing here } //I call the framework method public static MyResults GetResults() { Results results = new Results(); //Resu...

Is there any way to disable the "double-click to copy" functionality of a .NET label?

This is really annoying. I'm using the label as part of a list item user control, where the user can click it to select the list item and double-click it to rename it. However, if you had a name in the clipboard, double-clicking the label will replace it with the text of the label! I've also check the other labels in the application, an...

Oracle - Getting Select Count(*) from ... as an output parameter in System.Data.OracleClient

Greetings all, I have a question. I am trying to build a parametrized query to get me the number of rows from a table in Oracle. Rather simple. However I am an Oracle newbie.. I know in SQL Server you can do something like: Select @outputVariable = count(*) from sometable where name = @SomeOtherVariable and then you can set up an...

Recommendations for a Hex Viewer Control for Windows.Forms?

I need ability to display content in Hex View, like this from WinHex Offset 0 1 2 3 4 5 6 7 8 9 A B C D E F 00000000 EF BB BF 0D 0A 4D 69 63 72 6F 73 6F 66 74 20 56 ..Microsoft V 00000010 69 73 75 61 6C 20 53 74 75 64 69 6F 20 53 6F 6C isual Studio Sol 00000020 75 74 69 6F 6E 20 46 69 6C 65 2C 20 46 ...

I've built a Windows service as "Any CPU". Why does it run in 32-bit mode on my 64 bit machine?

I've built a Windows service as "Any CPU". However, when I run it on my 64 bit machine it runs in 32 bit. How can I fix it? I'm using .NET and C#, and my operating system is Windows 2008 R2. If I build it in x64 it correctly loads in 64 bit mode. However, "Any Cpu" -- which is what I want -- loads in 32 bit, even though the machine it's...