I have a table that has two time columns. One is a login time one is a logout time. I would like to be able to filter between the two, basically greater than the minimum selected and less than the maximum selected. I am using a monthly calendar to get me the spans of time but it is not working correctly. From there I would like to add th...
I have an object that has relatively high initialization cost that provides a thread-safe calculation method needed to process web service requests. I'm looking for the best way to keep an initialized instance available between requests. One method is to declare it as a static variable. It would then remain available until the AppDoma...
I have a Multiview search feature on a Web User Controller that is called within a Repeater, OHMY!! I have some training sessions being listed out on a page, each calling an employeeSearch Web User Controller so people can search for employees to add to the training session. I have the Employee Names and Employee IDs listed out in JS on...
Func<> is very convenient in .NET. Is there a way i can specify the param type and have the result value as void? I'd like to pass void Write(string) as a parameter. ...
Hi all: I came across this c# code in a project today and I couldn't help but question its efficiency: SPList spList = spWeb.GetListCustom("tasks"); foreach (SPListITem item in spList.GetItems(query)) { //... do something with the SPListCollection it returned } Being from a Java background, the spList.GetItems(query) definitely m...
Is there a .Net equivalent or analogue for dtrace? ...
Hello everyone, I am developing a system which include a server app & a client app, note: the number of clients can be to million. These are my requirements: Client must authenticate (username & password) to server to be accepted connection. And client will listen to server, and receive any data which sent from server. When server has ...
Hi All, If I have a web page that does something like this, protected void Page_Load(object sender, EventArgs e) { List<string> items = new List<string>() { "test1", "test2", "test3" }; Response.Write(items); } How do I get the List back out at the other end...
I have a computer that won't let me enable direct3d acceleration (i've tried almost everything). So I need a 2d engine in c# that supports openGL. I found Axiom3D, but I can't run the samples and I can't build the project, and it's driving me crazy. When I try to run the samples, it just blits open the command prompt and closes right a...
My requirements are to be able to thumbnail the major image and file extensions: doc(x), txt, xls(x), pdf, rte, and as many others as possible. We have been hooking into Office extensions to do this in the past, but they are not really supported on Vista and Windows 7 operating systems. Are there any third party thumbnailing applicatio...
Is there a quick way to get a flattened List<TElement> from an ILookup<TKey, TElement> that was created from the IEnumerable<TElement> extension? Updated with example List<int> list = new List<int>(); var lookup = list.ToLookup(key => key); list = lookup.?? // How to convert the lookup back to the list ...
I'm a little confused by the different ways visual studio allows dynamic values to be saved to a project, and how they are intended to be used. I understand that if I need to include binary information like an image or a sound file with my application I need to add that to a resource file. But if I'm saving something like a file path as ...
I have used code like this: http://msdn.microsoft.com/en-us/library/dw70f090.aspx to access database before when working in ASP.NET (2-3 years ago). I didn't realize I was working with ADO.NET. I am just a bit confused...is there another way data in a database can be accessed? How else would you do it? ...
Hi - In my Gridview when a user edits a row, I'm showing couple of asp:TextBox boxes using the EditItemTemplate. One of the Text Box is bound to the UpdateParameters of my asp:ObjectDataSource. However the Second Box is not bound to any of the update parameters. I'm assigning a custom value to the second box. Now my problem is, when t...
I'm accessing a login page rendered in webbrowser control and i need to login to it from code behind. What i'm aiming is to automate the login authentication to the site i'm accessing. I'm using C#.net. please help.. Thanks, jepe d hepe ...
I have a bitmap object and draw some curves on it by setpixel method. when I save this bitmap as jpg file, the background of my picture is not a white surface. the background is transparent. what is the problem? How can I resolve this problem? ...
Is "color cycling" possible in GDI+ with WinForms? I'd like the modify one or more colors in the palette of an on screen surface so that whenever the surface is repainted, GDI+ will use the modified colors. Rather than perform the transformation manually pixel-by-pixel, I hope to use GDI+'s capability to render surfaces using indexed...
i am developing chat application using .net, here i have to refresh the online users periodically, is there any way please suggest me. now i am getting user name once the user is logged in, and i am removing the user once he press the logout button, its ok and working fine, but some users just close their browser its not possible for me...
I am trying to create a worker app domain in C# in VS 2010 to try out the simple sandboxing technique as mentioned here: http://blogs.msdn.com/shawnfa/archive/2005/08/08/449050.aspx My code inside the function Main looks like this: PermissionSet pset = new PermissionSet(PermissionState.None); pset.AddPermission(new SecurityPermission(S...
I write the following code for some test, and the output is out of my expectation. public enum Days { Saturday, Sunday, Monday, Tuesday, Wednesday, Thursday, Friday }; Console.WriteLine(typeof(System.Enum).IsValueType.ToString()); // False Console.WriteLine(typeof(Days).IsValueType.ToString()); // True So I check with Reflector ...