C# / C Sharp Forum

Hi, I've got a problem with SQL update statements when I pass null values (or better let's say DbNull values) to a DbParameter derived class (in my case, I'm using an SQL Server database). When I pass the DbNull value to the Value property, the DbType of the DbParameter object is still string. If I try to write into a binary field (...

Hello, c#2 , sqlserver 2005 I am parsing a Text File into 2 Datatables Parent we'll say invoice child well say Invoice Items parent rows 10,000, child rows 30,000 the 2 Tables start out Empty, i get the table structures from the Database "select top 0 from parenttable")

Thanks George, I really am grateful for attempts to be helpful, but this really doesn't answer the question in my OP. What I am looking for is an explanation of WHY things are this way (I was not looking for a work-around). Again, I am appreciative of the feedback. I will note, that even though I can use Interfaces, the calling...

hey guys, well im new here. and i have some queries. wondering if anyone could help me out with this SMPP. i have developed a program using the devshock library, and sucessfully sent the msg over to me provider. but the problem here now is that i cannot seem to receive back the DN. maybe the event handler that im working on is wrong.

How can I duplicate the behavior of the operating system shortcut keys in my application? For example, my windows form has 5 controls (textboxes), the operating system will pickup which control has the focus and handle ctrl-c, ctrl-v, or any other shortcuts. I have the same shortcuts working in my app, but have not determined how to find...

Hi, Im a bit confused about when you cast a value type to an object. I have a property grid wich stores the data and the defualt as objects. the data is limited to primitive types, structs and strings. the structs only have primitive types. however once ive set the data to the defualt, if the data is a struct then any edits change the...

I have a dropdown combo box where the DataSource is bound to a CSLA BO returned from a WCF call. The dropdown list looks fine, but selecting an item returns "SYSTEM.RUNTIME.SERIALIZATION.EXTENSIONDATAOBJECT" (which seems to be related to WCF somehow) and I am not sure how to debug this. Does anyone know what might cause such a wierd behavior...

Hi Peter, Well, as far as I'm concerned there's actually a big difference between the two strategies. First of all, the SQL server may be busy / bandwidth limited while serving requests from other web frontend servers. In addition, the IIS is extremely efficient at transmitting binary files (uses a kernel level process). Perhaps the...

Hi I have some code something like. public class Info { public static IList GetUser() { return User.GetUser();} } internal class User

On Apr 22, 2:51*pm, Tammy Nejadian <TammyNejad...@discussions.microsoft.comwrote: Do a search in the archives of this NG, look for "wizard" you will find a lot of examples

i am preparing a website through .net technology on xp O.S.can user enter the data to the site even if he does not have the .netframework installed on his P.C. or is having windows 2000 installed

In my C++ and VB days, it was easy to put a program on a network drive, and allow each user to shortcut to it. Then, when needed, I could just update the program on the network drive, and each user automatically had it the next time they ran it. Sometimes seems to be happening in CSharp. Now I get the error: "Request for the permission...

Hi, I am using Visual C# window creating an application to read an xml file. At some point I need to use XPathNavigator and XPathNodeIterator however when I used those subjects I get error message . I add the "System.Xml.XPath" class however it either empty or not implemented. This problem happened also when I was going to use...

Open file from resource as a stream? Or just how to read resource text file line by line?

The difference between compile & runtime. CreateInstance works at runtime, you can pass ANY string to it (even an incorrect one like "123123123123") and it will compile Only at runtime you will get the error. And honestly, you HAVE to know something about your Class. otherwise, how do you know which method to call?

Hello, just wondering, in the event model windows uses, they use an argument wrapper class called EventArgs which you can subclass to encapsulate all the arguments you need to pass to any eventhandler method, so my question is, why is this model not used for pass arguments to ALL methods? Why pass many individually typed arguments to methods?...

I cant seem to get my head wrapped around this issue, I have myself so twisted now there maybe no issue! Ok so I designed a class X that has a few members, and for arguments sake one of the members Y is the location of a file to be read. The original design assumes that this class will be instantiated and each instance will happily mange...

Robert.. You can use interfaces or an abstract base class to abstract out the functionality of the plug ins. You then program to the abstraction. In the case of an interface, you program to the public view, the interface. The interface defines a contract between the user of your plug in class and any concrete implementation of the class....

I have a 5x5 Matrix. Each cell consists a string value(ex:URL of a website) I want to find out which string value occurs( i.e. repeats ) maximum no. of times in the matrix. I have a hint that BINARY SEARCH TREE will be used here and that NODE class in c# may be used to implement trees.

I have the following in my web config. It looks like the AD login is working because it tells me if the password is incorrect, however, if it is a successful login it says on the login page and does not redirect to the WebForm1.aspx. The url does have the return in it as well. http://localhost:52502/Login.aspx?ReturnUrl=%2fWebForm1.aspx ...

I have an application that is modifying the ENTER key to use this.ProcessTabKey() for data entry screens (replacing a green-screen Telenet app). I would like to do the equivilent of ths.ProcessReverseTab() for ALT-ENTER, but no such animal exists. Does anyone know how this could be done?

Hi, I am writing a windows app in C# and referencing a lib built in J# and which I don't have the code for that requires a method to be overridden that contains a parameter defined as: java.lang.Exception I tried specifying the .net Exception class instead, but then I got an error message saying that my class did not define the the...

Hi all I have a form with a treeview on it. I add 3 nodes and enable LabelEditing. In the AfterLabelEdit event code I want to change the SelectedNode on the treeview however it doesn't always work. If I click any node label, edit it and hit the Return/Enter key it works fine. However if I edit any node label and click say on a

Hi, I am exploring the object-relational mapping tools (the free ones) for the .net CF 2. As far as I have seen all the tools start from the tables of a database and generate code to build persistent classes. I would like to know if there is some tool that does the opposite: starting from an object (a class) it generates the tables in the...

Hi, I inherited a web project from other programmer. I notice on my dev machine every time I request a page in IE or FF the CPU jumps to 100%, all utilized by asp_wp.exe. I did some researches on the web, somebody suggests this could be due to database connection not properly disposed. I happened to see the following code snippet in...