I've been analyzing my next project and writing up requirements, one of the things I'd like to do involves me communicating over 64 serial ports (16 ports x 4 windows pc's) The best was I can think to do this is a master/slave application model where the master application is controlled by an operator and the slaves simply execute comma...
I have a method that validates a combo box control like so: Public Function ValidateComboBox(ByVal objMessageMode As Errors.MessageMode, ByVal cboInput As ComboBox) As Boolean Dim blnValidated As Boolean 'no value--invalidate' If cboInput.SelectedValue Is Nothing Then Errors.InvalidateField(cboInput, Errors.errFiel...
[Sample.xlsx] Column 0, Row 0 = "ItemA" Column 0, Row 1 = "ItemB" Column 0, Row 2 = "ItemC" Column 0, Row 3 = "ItemD" [Application] DataSet dsData = new DataSet(); string strConn = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=Sample.xlsx;Extended Properties='Excel 12.0;'"; OleDbDataAdapter daGetExcel = new OleDbDataAdapter("SE...
Objective-c/cocoa offers a form of binding where a control's properties (ie text in a textbox) can be bound to the property of an object. I am trying to duplicate this functionality in C# w/ .Net 3.5. I have created the following very simple class in the file MyClass.cs: class MyClass { private string myName; public string M...
I want to create generic drop down list in ASP.net 2.0 using C#, basic concept is which ever Nhibernate object type with which I initialize this list it should populate dropdown with all values from that objects underlying table. Any suggestions how can I achieve this. ...
Is there any way to get a BITMAPV5HEADER out of a Bitmap object in C#? Or just get the values that are in their? I need to get some ColorSpace information out of a bitmap and can't see a way to do this in C#. ...
Hi, if I don't put a namespace in my classes (vs.net 2008), which namespace do my classes get built under? update Its strange, when I add a namespace I can't seem to reference the classes methods from my user control. If I explicitly set a namespace, and add a 'using ...' in my control, I still can't see it! How can this be? usi...
I have the below code that I harvested from MSDN. There intent there seems to have been as an Add In and as such I am having a problem with the this.Application.CreateItem(...) portion. What do I need to do differently to do this from my winform app? private void AddAttachment(){ Outlook.MailItem mail =this.Application.CreateItem(Out...
After spending some hours reading about Unit Testing and test driven development here on StackOverflow and on other sites posts pointed me to, I know two things: I want to use it I don't know where to start There are lots of good posts here about details, best practices etc, but what I am looking for is a beginners tutorial/introduct...
Our office is about to finally spend some more money updating the in-house reference library and I suggested that we pick up some more books that focus on Object Oriented Programming/Design from a .NET perspective (which is what we focus in, primarily VB and ASP.NET). After doing a quick look through our current shelf we seem to only ha...
I'm looking for a general purpose try and retry with a timeout in C#. Basically, I want the following: bool stopTrying = false; DateTime time = DateTime.Now; while (!stopTrying) { try { //[Statement to Execute] } catch (Exception ex) { if (DateTime.Now.Subtract(time).Milliseconds > 10000) { ...
I have some c headers, and a c lib that I'd like to import and use in a c# project. How can I do this? ...
Hi, Other than logging into FogBugz and using it etc, what kind of integration points does it have? ...
I'm currently reading for the mcts exam and struggle a little with the chapters on security. How common is it to use the CAS-features? For what kind of application is it used? I can't say that I have missed the opportunities this system provides when developing native applications. Is this kind of security more important for managed app...
I'm trying to find a LINQ oneliner that takes a Dictionary<String,Int> and returns a Dictionary<String,SomeEnum>....it might not be possible, but would be nice. Any suggestions? EDIT: ToDictionary() is the obvious choice, but have any of you actually tried it? On a Dictionary it doesn't work the same as on a Enumerable... You can't pas...
An interview question for a .NET 3.5 job is "What is the difference between an iterator and an enumerator"? This is a core distinction to make, what with LINQ, etc. Anyway, what is the difference? I can't seem to find a solid definition on the net. Make no mistake, I can find the meaning of the two terms but I get slightly different an...
Hello, I am working on a form with a GridView, pulling data from an SQL Express database. The last column will be a Button that I want to be able to change based on what data is bound to that column. The button will act as an "Enable/Disable" toggle. Basically, if a user is enabled, I want the button to say "Disable" and have the OnCli...
I am using a httpwebrequest, and am disposing of the response stream. Is there a correct method of disposing of the httpwebrequest, as it does not contain a close or dispose method? ...
Hello everyone, In a .net application I am writing, I need to locally cache assemblies from various locations so my application can use them even if the original locations are unavailable. I cannot use the GAC (primarily because I want portability and also because the assemblies might not be signed). Does anyone know of any .net cod...
So you have a third-party web service that likes to abuse XML and return things in an order that makes your programming a complete pain in the neck. For example... <file> <node1>Foo</node1> <price>4.99</price> <node2> <key>XX999</key> </node2> </file> There are about a thousand of these sorted in order by price. How can ...