c#-2.0

问题 I have developed one windows service through which I am trying to open an word document. But when service tries to open document, it logs following error "There is insufficient memory. Save the document now." If I run the same program as normal windows application, it works fine but problem comes only when I try to run the program as windows service. I tried to google this problem, but there arent many answers about this problem. Is there any way to increase the memory limit for windows

问题 I am trying to relax my website's session expiration policy so that the users may specify the session timeout interval. I need to figure out what website related settings should I specify in order not to limit the users too much. For example, one might want a 1 day interval. I will be using tickets to accomplish that. Now, I know I can specify the idleTimeout and shutdownTimeout in my website's web.config file (I prefer this method as it's damn easy to adjust it without the whole deployment

问题 Problem: I have a C# .NET 2.0 application developed on Windows 7 that has translated resources for multiple languages (ex. zh-CHS for Chinese, es for Spanish, etc.). I have a customer who wants to run their Windows 7 OS in English, but run my .NET application in Spanish ( es ). My application is multi-threaded, so just changing the culture of the main GUI thread is not sufficient for my needs (trust me, I tried). This is because other strings displayed to the user through the GUI are

问题 please help me regarding System.StackOverflowException i m desing a .aspx to write records into the database i used 4-tier archietecture to implement this everything are working but when im compiling the page then its displyae the fields to insert the data ,when i insert the data to those field and clik the submitt button then its showes System.StackOverflowException occured public class Customers { public Customers() { int CustomerID = 0; string Fname = string.Empty; string Lname = string

问题 Could you tell me the best approach for this scenario. I have inherited a new project and have not come across this scenario before. We have a reference in our C# Windows Forms application to a 3rd party tool for producing documents. There are two different versions of the 3rd party tool in the deployment environment installed on people's PCs - v1.0 and v2.0. I can only build our Windows Forms application to work with either v1.0 or v2.0 of the 3rd party tool. To do so I have to install

问题 I have a good understanding of OOP in general, inheritance and polymorphism, interfaces, etc. I encountered a strange situation and I don't understand why it does not work at all... EDIT : Ok, I found out that covariance (or contravariance?) may solve this problem, but crucially we're still using .NET 2.0 How can I solve this without moving to C# 4.0 ? Here is the situation. Given these two classes : public class CustomCollectionType<T> : IEnumerable<T> { /* Implementation here, not really

问题 This one has confused me a little... Attempting to dispose of an XmlReader XmlReader reader = XmlReader.Create(filePath); reader.Dispose(); Provides the following error: 'System.Xml.XmlReader.Dispose(bool)' is inaccessible due to its protection level however the following is fine: using(XmlReader reader = XmlReader.Create(filePath)) { } When I look at the definition in Reflector I can't understand why I can't call Dispose Implementation of Dispose: Can anyone point out what I'm missing? 回答1:

问题 I want to know the number of visitors online on my site. I did my research and found two solutions. Source: Code Project Online active users counter in ASP.NET It is easy to setup and easy to use but it increases the user count for every Ajax request/response too. My home page alone has 12 Ajax requests(8 requests to one page and 4 requests to another page). This dramatically increases the user count. Source: Stack Overflow Q/A Count the no of Visitors This one works exactly the same as the

问题 I would like to call a sql statement such as: Select * From Table Where Column in ('value1', 'value2', 'value3') Is it as simple as setting a command parameter's value equal to " ('value1', 'value2', 'value3') "? 回答1: @Charles: You're going into the right direction, but we're using parametrized queries to mainly prevent SQL injections. Putting 'external' values ( params string[] args ) hardcoded in queries is asking for trouble. You can iterate the arguments, but you still have to use

问题 I need a text box that: (1) only accepts digits as characters. (2) automatically continues to format numeric values with commas as the user types into it. For example, 1 becomes 1.00 10 becomes 10.00 100 becomes 100.00 1000 becomes 1,000.00 10000 becomes 10,000.00 100000 becomes 1,00,000.00 How to achieve that? 回答1: Formatting a number while the user is typing in general works very poorly. You should use a MaskedTextBox for that. Plenty of code about on the Internet that shows how to filter