c#-2.0

问题 I have a class with a read-only property defined. In my code I define this as a property with a getter only. I want to be able to send this object back and forth across a web service. When I call a "Get" method in the service, it would be populated with a value on the service side. Once I define this property, I don't want the consumer of the web service to be able to set/change this property. When I add a reference to this web service to a project, the object has the property serialized a

问题 I have a class with a read-only property defined. In my code I define this as a property with a getter only. I want to be able to send this object back and forth across a web service. When I call a "Get" method in the service, it would be populated with a value on the service side. Once I define this property, I don't want the consumer of the web service to be able to set/change this property. When I add a reference to this web service to a project, the object has the property serialized a

问题 i have a grid in which there are various records. On my form i have a Update and Delete button outside the grid. there are different textbox. when i selected a row in a grid its value appear in these textbox from where i can update these value. thats work fine for me. Now i want to delete the selected row? i dont want to delete a record using delete button in the grid. i want when i select a row and press a delete button then the selected row should delete from grid as well from database. 回答1

问题 I tried to add Header in all the pages of my PDF using iText package in .NET C#, but it's not working. Note: I'm using iText version 7 I tried the following Stack Overflow answers, they demonstrated only for Footer (i.e., END_PAGE ) not for START_PAGE Add Header and Footer for PDF using iTextsharp My Code : class Program { static void Main(string[] args) { var writer = new PdfWriter("E:/pdfSample/bala.pdf"); var pdf = new PdfDocument(writer); var document = new Document(pdf,PageSize.A4);

问题 With regards to POODLE, SSLv3 is now disabled on the Server. The client software was developed in .NET 2.0 and provides TLSv1 as the only alternative. I have access and ability to make changes to both the client application and server configuration. ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls; is used to force all HttpWebRequest.GetResponse() calls to use TLSv1. And SslStream.AuthenicateAsClient() is used with the argument SslProtocols.Tls to force TLSv1 to be used during

问题 With regards to POODLE, SSLv3 is now disabled on the Server. The client software was developed in .NET 2.0 and provides TLSv1 as the only alternative. I have access and ability to make changes to both the client application and server configuration. ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls; is used to force all HttpWebRequest.GetResponse() calls to use TLSv1. And SslStream.AuthenicateAsClient() is used with the argument SslProtocols.Tls to force TLSv1 to be used during

问题 I need to get the icon of a file type doc or txt It's size should be 128*128 and be saved as an png or ico file in good quality. I used Icon ico = Icon.ExtractAssociatedIcon(@"d:\\1.txt"); pictureBox1.Image = ico.ToBitmap(); and save the image from the pictureBox1, but that size is 32*32. I really want a size 128*128. How can I do that? 回答1: There is no icon-size 128x128 available from the Shell API SHGetImageList. The sizes range from the Win95 era of 16x16 and 32x32 via XP's 48x48 and

问题 I'm using a class that forwards events in C#. I was wondering if there's a way of doing it that requires less code overhead. Here's an example of what I have so far. class A { public event EventType EventA; } class B { A m_A = new A(); public event EventType EventB; public B() { m_A.EventA += OnEventA; } public void OnEventA() { if( EventB ) { EventB(); } } } Class A raises the original event. Class B forwards it as EventB (which is essentially the same event). Class A is hidden from other

问题 I am executing a simple query against SQL Server 2005: protected static void InitConnection(IDbCommand cmd) { cmd.CommandText = "set transaction isolation level read uncommitted "; cmd.ExecuteNonQuery(); } Whenever I profile with dotTrace 3.1, it claims that SNIReadSync method is taking between 100 - 500 ms. What sort of things do I need to be looking for in order to get this time down? Thanks! 回答1: I have not tested, but would wonder if you have the same issue if you used a TransactionScope

问题 I would like to retrieve the data between 1 -30 of the current month [ i am using MSACCESS Dbase to do so] Below is the query that i am trying -- SELECT count(usercategory) as category_count ,usercategory FROM user_category where IssueDate between DATEADD('m', DATEDIFF('m', 0, DATE()) - 0 , 0) and DATEADD('m', DATEDIFF('m', 0, DATE()) + 1, - 1 ) group by usercategory Data that i am holding in my MSACCESS Dbase - Category1 9/7/2013 12:00:00 AM Category1 9/8/2013 12:00:00 AM Category2 10/8/2013