Answer Questions

• Martin Miles Nullable Types in Generic Classes

  Yea, I've run accross this too.  Your first attempt fails because when you use CBOField<int >, you're actually saying CBOField<INullable<int>>.  And since INullable is a reference type, not a value type it fails the struct constraint. Your second attempt fails because INullable<T> constrains T to be a value type.  Hmmm, I wish they hadn't done that. Your third attempt fails because, well, string ...Show All

• Seraphic Raven Search Portable Media?

  Is it possible to search portable media such a DVD using Windows Desktop Search, if I don't copy the content to my desktop For example, can I put a DVD in my d: drive and index it Also, are indexes portable Could I create an index on one computer and copy it to another Thanks, Larry Hi Larry, If you're question is "Can I do this " the answer is Yes. The bigger question is will this be useful ...Show All

• Clint Stotesbery How to cast Null object.

  Hi all, I am wondering if I can do casting for null object. Lets see the following code: int i; object o; o = null ; i = ( int )o; I am getting error that "Object reference not set to an instance of an object." Is this possible by any other way Thank you Ow Nullable types true. I forgot them sorry... :) Happy coding... Thank you v ...Show All

• Saune Performance Monitor

  Hello All, I am developing a monitor application for our servers. Ideally this will have a minimum impact on the servers themselves (i could run from a workstation) and would monitor network connectivity, available memory and processor load as a function of number of cleints connected. I wouold like to use something like: PerformanceCounterCategory[] RegisteredCategories = PerformanceCounterCategory.GetCategories(); in ...Show All

• Flynn Arrowstarr The SqlParameter is already contained by another...

  Hi All, I have the following code: List<SqlParameter> lstParams = new List<SqlParameter >(); SqlParameter pGuidAccount = new SqlParameter("@guid_account", guid_account); lstParams.Add(pGuidAccount); ChkValue = AppUtility.DBCore.SqlExecuteScalar("isp_has_transaction", stParams); ChkValue = AppUtility.DBCore.SqlExecuteScalar("isp_has_totalled_to_account", lstParam2); As you can se ...Show All

• James D. Wright Query Commands

  Ok. I am trying to use the query command "LIKE", but its not working. I have a row with the name Ben Stuart - A moment inside. When I use the following code: SELECT * FROM TableName WHERE Title LIKE ' e*'; and its not working, it just shows a blank table. But when I use the following code: SELECT * FROM TableName WHERE Title LIKE 'B%' ..then it works just fine. I know the first block of code is to match the criteria to the second letter, and the ...Show All

• sonali kedar Passing a buffer to a COM call?

  I have an external COM interface written in C++. The method I'm interested in looks like this in ildasm: .method public hidebysig newslot virtual instance void OpenChartDirect([in] string marshal( bstr) bstrChartName, [out] uint8& pbData, [in][out] uint32& cbSize) runtime managed internalcall { .override CHARTSERVERLib.INcxServer2::OpenChartDirect } // ...Show All

• MrHelmut using Microsoft.Samples.DirectX.UtilityToolkit;

  I trying to write an application in Visual C# with the DirectX SDK. The application should use various controls so I want to use the namespace: using Microsoft.Samples.DirectX.UtilityToolkit; when compiling i get the the error that an assembly or reference is missing. However I can not add it as a reference because I can not find it. Shouldn't there be a dll with the name  Microsoft.Samples.DirectX.UtilityToolkit. What shall I do te be a ...Show All

• charlieDog question about retrieve single selected date in MonthCalendar

  hi, i am new to c#, in my project, when a date on the monthcalendar is selected, i want to catch the date for future use (e.g. retrieve all the bookings on that date from db). i have read some articles about this, now i can call "SelectionRange.start.ToString(); " to get the starting date and call "SelectionRange.end.ToString(); " to get the ending date. what about a single date selected i tried "SelectionRange.start.ToString(); " and "Sel ...Show All

• madhur Newbie: Menu question

  When setting up a tree view I am trying to add a small link menu off of the nodes of the tree to allow editing.  I am wondering what is the best way to create the link from the node to the pop up menu.  Any suggestions would be helpful. Thanks I am not sure what is meant by a link menu If you need a context menu - a menu that pop-up's on right-clicking a node then you can create a ContextMenu and atta ...Show All

• Simon Hogg How to find out which software is installed with WMI or other ways?

  Hello, can you please Help me I will find out what software is installed on a machine by using WMI. The only way I’ve found out ist "Select * from Win32_Product" but in Win32_Product are only those who are installed with MSI. But is there a way to get the complete List of installed Software with WMI which you can find under the Software Dialog in Windows Thank you twickl ...Show All

• fredx21 Infinite integer

  Hi, my application is using some integers which is too big for int32 and even int64, can anybody tell me how to create infinite integer variable that can accept very large numbers Thanks, *grin* I've never had a need for such big numbers, I've not written it. Before you start, you need to consider what you want this number to be able to do. Obviously you want to write operate +/-/*//, but what else are you doing Do you want to be a ...Show All

• Wernerj Can I use "Virtual Space" in Visual C# 2005 Express Ed?

  There is no option to set "Enable Virtual Space" in the texteditor of Visual C# 2005 Express Ed. This setting was in Visual c#. NET 2003 and I am used to it. When this option is set you can move the cursor up and down and it doesn't go the last character of each row. Is there any solution for it any setting in the registry , or anything please help Hi, Hmmm... Quite unusual. I'm using VC++ Express Beta 2 and Its there... Have you trie ...Show All

• Puil Hi everybody ! Help me about Charset of Dataset.

  I Wirte application with database and I have trouble like this. In my database store data in charset Windows CP 1258, When I get data show in Grid it show Not correct. I was used EmcodingUnicode for convert from CP 1258 to unicode but it display not correct too. Can You Give me the Way to change Charset and show correct in form I'm look forward hearignn from everyone. Thanks for your Help. Thanks for your answer Van de ...Show All

• notnal Error when trying to delete row from GridView

  I'm trying to delete a row of data by using the Delete button inside a GridView, but I'm getting the error below . The datarow contains a cell with xml datatype data, but the row I'm trying to delete actually contains a null value for that cell. Anyway, I don't know where the nvarchar is coming from...is that the default value for the parameters Any ideas about how to fix this Thanks ==================== The data types xml and nvarch ...Show All