Hi, In java, they have a full set of API specifications available for development. Is there such an API for C# for referencing.For example, I would like to know what are the Propertys of a Panel Control, and by refering to the API, I would be able find them? ...more >>

Hi, In java, they have a full set of API specifications available for development. Is there such an API for C#? ...more >>

hi all i wrote a windows service. i am trying to get it to use an app.config file. unfortunately, when the service starts, it assumes that the ConfigurationSettings file is in C:\Windows\System32. this is unacceptable to me. rather, i would like the service to assume that the app.config f...more >>

Hi There Our test database has duplicate data: COMPANYID COMPANYNAME 1 Grupple Group 2 Grupple Group 5 Grupple Group 3 Yada Inc 4 Yada Inc 6 Bodgy Brothers I want to get a list of distinct company names and the most recent ...more >>

I'm trying to create a ComboBox class that will present the same printout options to users no matter where I need to use the combo box. I extend the ComboBox class and in the constructor I add predefined print destinations, along with setting other properties. The problem comes when I drop...more >>

Hi, I am new to .net. I believe this is a silly question. When I link a datasource, such as an array, to datagrid, I don't see the new record row at bottom of the grid. But when I linke datagrid to dataset, I can see it. Why is that? Can I programmingly control when to show it? Thanks, ...more >>

Hello, I am running a ASP.Net application. It runs by defaul in the context of ASPNET user. I want to dynamically impersonate it so as to run in the context of currently logged in user. I know it is possible by specifying username, domain and password and using WindowsIdentity, Windo...more >>

I have been trying very hard at finding details into Microsoft TV development tools. I was mainly interested in finding if the support is for both C++ and C# and to try at the downloads of MS TV Content designer, TV SDK, TV Toolkit for VS. But I am totally unable to get some tangible informati...more >>

What does "open source" mean in the .NET platform while almost all "non-obfuscated" codes are "Open-Source"? Just yesterday i got an add-in for my ".NET Reflector" which saved the entire disassembled-to-C# "mscorlib" library for me in .cs files, and i now have a project on my computer that was o...more >>

Visual Studio 2003 Windows Forms application: Is there a way that I can add a form as a TabPage? My goal is to develop a series of forms and load the dialogs dynamically in a tab control based on the user selection of a particular function. I would like to leverage the usefulness of the...more >>

Hi, I have a MessageBox showing a message that the data has been added. It's a messageBox containing a MessageBoxButtons.OK. I would like to after the messagebox show and I click on button OK, all the textBox.Text will be clear textBox1.Text = "" textBox2.Text = "" textBox3.Text = "" ...more >>

Hi, Can anybody tell me how many cpu cycles File.copy would take and how many cpu cycles File.Move would take? CFile::Rename in C++ takes just one cpu cycle. As there is no File.Rename in C#, I am worried about using File.copy or File.Move which would do the same job of renaming a fi...more >>

When I use system.web.mail namespace in most of my integration programs and in windows application programs it doesn't work. it normally gives an exception "Could not access 'CDO.Message' object." or "Could not access MAPI drivers". (all these machines, outlook is not installed and local SMTP is...more >>

We're using a 3rd party C DLL in a project that we don't have source for. When we call the DLL from a console app everything works fine. However, when we call it from a Windows Service, the DLL doesn't work (sorry, can't be more descriptive.. no errors, but no results). We've even taken t...more >>

Hello, In my asp.net application, I have the MainForm.aspx.cs (where all the functions are defined) and ClasssificationInfo.cs class. This is the Classification Info class -- using System; using System.Xml.Serialization ; namespace MyAppl { [XmlInclude(typeof(ClassificationInfo)...more >>

Hi, We are currently using MSDE as a local database for our customer focussed applications. Does anyone else deploy MSDE with their applications and if so what model do you use? ...more >>

I can get this to work: DataRow rowFoundRow = dataSource.Rows.Find(cbText) but I can't figure out how to move the CurrencyManager.Position to that row. Any help here? ...more >>

Hi: Newby Question: I have the following code in a class library that performs a query on an SQL database and is returning a class that contains "locatestatus": if (p_locatestatus.Value != System.DBNull.Value) { rtrec.locatestatus = (char)p_locatestatus.Value; }; rtrec.locatestatus is ...more >>

Does anyone have an answer to this? -------------------------------- From: Jack Record ----------------------- Posted by a user from .NET 247 (http://www.dotnet247.com/) <Id>dvrVbxYA3Eal+VEGoUuw0g==</Id>...more >>

Best Viewed at << 1024x768 >> http://groups-beta.google.com/group/alt.religion.christian/browse_thread/thread/73352e0ed6923d23/1ea6c7a1ea6923ab?hl=en#1ea6c7a1ea6923ab ******************************************************************************************* ************************************...more >>

Hi, when using the PrintDialog-control and printing GDI-instructions to a file, to what format is the file saved ? (It is typically those GDI-instructions that are used in the PrintPage event-handler of the PrintDocument-object) The thing is that I would like to view the content of the file a...more >>

Hi, I have a custom made toggle button, and I want to change the cursor in my application when it's pressed. I set the Cursor.Current property whenever that state changes, but on mouseup it reverts back to the default cursor automatically. I did a few tests, and putting a button in a blank f...more >>

I am having trouble with the cursor in a richtextbox for windows forms. After incerting a character between words in a sentence, as so: this.richTextBox1.Text = this.richTextBox1.Text.Insert(this.richTextBox1.SelectionStart, ""+'\u1200'); Than the curser moves to the beginning of the textb...more >>

I have a C++ method and I want to call a C# method from it. passing in a string. Works fine with int's, but if I have a string arg the method call is skipped. #import "../util/Release/AcornActuateUtil.tlb" raw_interfaces_only using namespace AcornActuateUtil; extern "C" UINT __stdcall InstallAc...more >>

How do you set the default printer in C#? I have added a printer and now want to set that printer to the default. Listed below is my code, but I am getting an "Invalid method Parameter(s)" error on the 4th line: ManagementClass printerClass = new ManagementClass("Win32_Printer"); object[] ...more >>

Hi: I'm more than a little confused with this question: I need to create a char type from the first letter in a string - for example: string mystring; char mychar; mychar = (first character of mystring) I have looked all around and find many examples of character arrays however I c...more >>

What are they for? Why do we have to match them inside our C# or VB code? Are they so the end user can input a value to query on? When do we have to use them in C# and the SQL Server Stored Procedure ...more >>

I need to call(reference) class member "PrintDestination.PrintDestinationPrinter" from another file. How do I do it, I tried "ReportRenderer.PrintDestination.PrintDestinationPrinter" but it doesn't work. Please help! here is my class: ***************************************** using Syst...more >>

I have an app that I have been using this code to fill a datagrid: DataSet ds = new DataSet("Recordset"); OleDbDataAdapter da = new OleDbDataAdapter(); // Call data adapter's Fill method to fill data from ADO // Recordset to ADO.NET dataset da.Fill(ds, rs, "tblTravelEventType");...more >>

Hi There Say I want to check if object1.Property1 is equal to a value, but object1 could be null. At the moment I have code like this: if (object1 != null) { if (object1.Property == desiredValue) { //Do work here } } Here is my question - Can I do this ... if ...more >>

Hi there, Quick one about interfaces in c#. It seems that it is illegal to declare types within an interface. I was quite used to doing this in VB.net where the interface can define a clients remoting interface and object model. eg.. Public Interface ISelectionEngine Function G...more >>

Hello I have 16 radio buttons and want to know how to create the array of these 16 controls. so the event handler remains one and execution happnes with respect to the control index, like we do in vb6 is there any way to do this, or if any alternate suggestion will be very helpful to me. ...more >>

I'm working with a subclassed listview control and I'd like to have the ability to set the checkbox on a certain item to indeterminate. I've tried adding three images to the stateimagelist (unchecked, checked, and indeterminate), but setting the checkstate in the ItemCheck event doesn't seem to...more >>

Hi, I'm trying to insert new datas to an existing table. What I learn from a C# book, all I need to do is write a method private void adepartment () { // specify new department code to insert in database objadep.Parameters["DEPT_CODE"].Value = textBox1.Text; oleDbConnection1.O...more >>

I stumbled over an optimization (or lack of one, to be specific) when viewing IL opcodes generated by the compiler using ms .net 2003. I was testing fast pixel manipulation using Bitmap.LockBits and unsafe pointers to iterate over an image's pixels. The inner-loop looked like this: for (in...more >>

Hey! I have 3 dropdownlist depending on eash other. It's a hierarchy. The first dropdownlist generate the second and the second generate the third. The first i have a sql query for, so that dropdownlist is generated. My question is how to generate the second and the third? ...more >>

Hi All, I've had problems with Arryas...i have a table in my SQLServer MenuTop with theses fields: id,link,description My solution has 3 tiers and in the Data tier i would like to recovery the link and description to send to the Business and later to the Interface, but i don't have an idea...more >>

hi, do you know where i can find some ebooks or websites talking about C# optimisation ? for exemple, i just learned that ++i is faster than i++. i would like to know more about the things that can make code faster than fast. thank you....more >>

I want to create a collection of records which will be permanently available at the application level in an ASP.NET application. How should I go about that? Lets say that the record structure has 4 fields with these types: type field name ============ integer recordID string title bool...more >>

Can someone point me in the right direction on how to send files to the Recyle Bin using C#....more >>

Hi I was wondering is there any sense in this idea: Instead of just sending selects to the database server and getting response in the normal way I could make a webservice on the server, send the reqest to it and in the response get the zipped dataset. Thanks to it number of send da...more >>

Hi! Every time an object is created it needs an amount of memory, but it doesn't release the memory, when the routine is run, it takes more memory... Code below... public class MyFirstClass { public MyFirstClass { // Initialization done here } public void DoSt...more >>

How do I calculate the number of days (or hours, or minutes, etc) between two DateTime's ? ...more >>

Hi, In WebForm1 I have Linkbutton1, what I want to do is I click the Linkbutton1 then the WebForm2 will be opened. I am not sure using the linkbutton is the right way, but if I am on right track, would someone tell me how to do it? Any help will be appreciated. Jason ...more >>

Hi, Am trying to create a COM server in C# as required in our application.used REGASM to register the dll and tlb file and everything works fine but when I try to unregister the dll and tlb using RegAsm /unregister nothing happen even though it says the unregistration has been succesful.Even reb...more >>

hi all i'm working with a project in which we have to perform operations on a webpage using c#, i have a small problem, i want to geat the image from a webpage and i have to perform operations on it, is there any way to solve this problem, thanking you for hrlping me, with regards saish ...more >>