How can I force the position of my carat to the end of the text in the typing field without sending an "end" keypress? ...more >>

Hello, I got the error "Object reference not set to an instance of an object" in this piece of code: Assembly asm = Assembly.LoadFrom(location); System.Attribute[] attributes = Attribute.GetCustomAttributes(asm); I checked: * location: this is the full path + file name of a dll * asm is ...more >>

Hi, I'm trying to update my GUI when an event is raised in my one of my dlls. my example code is: ------------------- In GUI: someLable.Text = " "; --- --- someObj.UpdateEvent += new UpdateEventDelegate(UpdateGui); someObj.UpdateCompleted += new Upd...more >>

Hi all, We all know that in .net , we can use any languages , for eg in vb.net or c# , i hope you can do multiple forms in multiple languages[Not clear though] Or reference dll written in Vb.net in C#..Ok Is there any contraints in by doing this, such as any precautions, that...more >>

How do I Update a dataset into a DB if the orginal SqlDataAdapter I used to fill the dataset is gone? ...more >>

Hello, I'm programming in C#, If I put dataSet1 (declared public) in Form2 and dataGrid1 in Form1 when I clic on dataGrid1 and I select DataSource (from properties) I can't see and select dataSet1, how can I select dataSet1? thanks ernuar ...more >>

Sending an email via System Diagnostics has text length limitations and therefore won't do. My Visual C#.Net 2003 does not recognize System.Web.Mail is there a reason for this? Alternatively: I am looking for a code example for sending emails other than by System Diagnostics. Please help...more >>

Can I store objects in treeviews ? -- Texeme Textcasting Technology http://texeme.com Indie Pop Rocks @ SomaFM http://somafm.com/ ...more >>

hi to all, let's say i have the following code: SqlDataAdapter da = new SqlDataAdapter(cmd.CommandText, cnn); DataSet ds = new DataSet("ds"); TestData.DataSource = ds; da.Fill(ds); the abvoe code is working and fetch the data in a datagrid but it displays a plus sign on the upper lef...more >>

Is there a sure-fire way to trap keypress events no matter which control has focus? ...more >>

How to print the list view control columns using PrintDocument class in csharp dotnet framework Thanks Regards, Ekta ...more >>

Hi all. I'm writing a program which I would like to make "modular", that is, being able to add plug-ins for new functions. Basically, the plug-ins will add new MenuItems to the main MenuBar. How can I make that kind of thing? Regards, Hernán Freschi...more >>

I have a variable in sql table with float type. I would like to read a value to numericTextBox in my Application. Hrcko ...more >>

I'm a C# language learner. I want to know which IDE is better for C# programing, Borland C#Builder or VS.net 2003? -- Message posted via http://www.dotnetmonster.com...more >>

I am learning c# and wrote a couple of little apps, and am trying to learn to use dll's I got snmp.dll to work which was really cool, but I think I want to play around and write a little MP3 player. Is there a dll I can interface with for MP3 playback that is free? and any basic code example...more >>

Hi there, I am trying to retrieve a list of installed printer port monitors, this was relatively easy in c++, but I can't seem to figure out the API call in c#. From MSDN the API call is... BOOL EnumMonitors( LPTSTR pName, // [in] server name DWORD Level, // [in] i...more >>

I want a user input the password of sa of Sql Server 2000. How can I test if the password is correct? ...more >>

Hi All. Is there a way to print the content of DataGridView, Without using Graphics.DrawString on every row? Thanks, Sharon. ...more >>

Another book recommendation request. I've looked through the old archives but can't find any consensus at all. I'm currently a C++ developer, and I know that on the C++ newsgroups there is a general consensus among the top handful of best books, depending on your experience level and needs. Ma...more >>

Hi I have an app which consists of several forms, some of which are hosted as MDI in the main form, which is the MDI parent. The initial 'main' form in the app is instanced via [STAThread] static void Main() { Application.Run(new frmMain()); } I want to access some of the p...more >>

Hi All, How to capture Mouse Single click and mouse double click event on Commnad Button. I am doing as follows. Private void Button1_MouseUp(Object sender, System.Windows.Forms.MouseEventArgs e) { If (e.Clicks = 1) {MsgBox("1");} Else {MsgBox("2");} ...more >>

Hi, I have an application written in .Net and my database is SQLserver. In my application i am using SqlAdapters to get the values from the database. But sometimes, values are not returned properly to these adapters and there are no exceptions also. At this time, all database queries wi...more >>

I added a PropertyGrid control to my form and set its SelectedObject property to one of my objects which exposes a lot of properties of type System.Drawing.Color. The System.Drawing.Color display fine, but they don't have a dropdown where I can select a new color, like in the VS.NET. How c...more >>

How can I use in If statement Or? for example. if (x>10 or y>10) { .... } Hrcko ...more >>

I have a base form, there a textbox on it, I set the textbox to protected. The properties of the textbox can't be modified when I inherited a form from the base form. I want to modified some properties of the textbox of the inherited form, how can I do it? ...more >>

Hi all, I have a problem that I havent really come accross before. I need to be able to allow the user to set a dropdown control to a particular colour value. The permissable values come from the Color enumeration and unfortunately I can't change this implementation detail. My question...more >>

I am novice C# programmer. I have written a com component using Visual C++ ATL. I want to use it using C#. My questions 1. How do I use it. 2. what are the comands to create the ojects. 3. How should I debug my component from C# program thanks ...more >>

I wrot program wich is included to the other program by using createobject() function. This object somtimes is showing a form with some information. After closing a form and calling a Dispose() metod, the komputer does not free memory and the object takes mor memory afret showing a form again. T...more >>

Hi, I got a situation here :) an dwonder if someone can help me. I have an MDI app and say, the child form has a button, clicking on which calls a database transaction - grabbing a lot of tables to the form's TDataSet variable. One transaction grabs about 10 or more Mb of data. If i do seve...more >>

Is it possible to "look" at an image and "read" the letters inside of that image? For example, if I have several images of exactly the same size and each has two lines of letters (Name, telephone) that always start and end in the same exact position, is it possible to analyze that part of the ...more >>

If I write: int[] x = { 1 }; that is fine with the compiler, but if I try to declare the array as const, meaning that it will not be changed: const int[] x = { 1 }; I receive the error message: error CS0623: Array initializers can only be used in a variable or field initializer. Try...more >>

[Problem] I'm looking to develop a listbox with in-place editing where as each item is selected, it grows to fit in all the text boxes. When the item is deselected, it shrinks back to its original size. The editing bit is not a problem, but I can't get the selected item to resize, as the list...more >>

Hi, I would like to strip all of the "xmlns" attributes out of an XmlDocument. I coded a function that recurses nodes and calls: XmlNode n = node.Attributes.RemoveNamedItem("xmlns"); After this call n is NOT NULL - indicating that "xmlns" was removed. However when I look at the outer ...more >>

hi all ! I need a help... I have a html page, with a frameset in it... in the "banner", I have some buttons inside a repeater control.. when I click any button, I need to change the source of the one of the frames of the frameset... I try to do: private void rpt_ItemCommand(object source, ...more >>

Hello, I have one pictureBox with the jpg file.How can I put it to whole screen? Do I have to use API function? R. ...more >>

Hi, I want to WriteLine a number in hexadecimal ( e.g. %x ), how would I do that in C#? -- Nadav http://www.ddevel.com...more >>

Hi, I have create a TypeSafe collection with CollectionBase, but I don't know how to update an object... Let's say I have an Animal class with Animals collection. Animal has a property named Number that's unique in entire collection... I would like to do something aka in my form: private ...more >>

Hi All; I'm reading the following xml file into a Dataset but there are only 4 datatables in my dataset (which should be 5) Is that because I have two nodes with the same name (detail) in my xml file? how can I fix this? Thanks for your time. <?xml version="1.0" ?> - <report> - <su...more >>

Hi! Can you tell me the best managed classes free to use the serial port? (rs-232)...more >>

I need to set the selected drop down list value at run time. I am aware of the method "SelectIndex" however this works only if you know the precise location of the value within the ListItem collection. Otherwise, what is the recommended approach? I have managed to set the appropriate value ...more >>

I have a solution consisting of 9 projects with various references to each other (clean though, no loops, etc.). Visual Studio sometimes gives me weird errors that it can't find one of the referenced assemblies, can't write one, or now most frequently (almost 100% of the time): "A failure occur...more >>

I try to open a file using this line: FileStream oStream = File.Open(FileName, FileMode.Open, FileAccess.Write, FileShare.None); When I try to open a file "\\CON-GELBR\TRAFFIC_LOAD\01012605.trf", I am getting the following error: System.UnauthorizedAccessException: Access to the path ...more >>

Hello everybody, We have a problem sending a file to the browser from our aspx. The problem is that the file received is uncomplete. The browser shows the first characters of the file. No exception or any kind of error is shown on server nor or browser. It works properly locally, but it fails...more >>

In C# how would I determine what type of machine a user is running my application on? I'd like to know if it is a tablet PC, a desktop PC, or a Notebook. Thanks -- -Demetri...more >>

How to set the background color of a MDI Parent from? The setting of background color is ineffective. ...more >>

Hi, I get the following error when trying to run a search on my aspx site, this error only occours if the product im searching for does not exist. Can anybody explain this please and help me with a solution, i know its probably simple but im new to the game...Cheers ------------------------...more >>

Service properties ------------------ Log On As: LocalSystem Logon account has full admin privileges. OnStart() routine ----------------- { EventLog->WriteEntry ("Commencing..."); .... A Spawn1() Spawn2() EventLog->WriteEntry ("Completing..."); .... B } In Automatic mod...more >>

Sort of a beginner question - What might be the best way to design a windows form that contains a menu, whose items are loading different content in the form. I'm used to do that via panels (visible attribute). I guess thats not a good way. Would it be better, to use a new form for each ...more >>

Hi, I am trying to autheticate a user in ldap and get a list of all the groups the the use is a member of. My problem is that i only get one groups from the request, although i know i am memeber of several groups. Can anyone see what i am doing wrong here? public bool IsAuthenticated(st...more >>

I’m using OpenFileDialog class in a specific InitialDirectory and I want that files will be selected in the opened dialog when I call ShowDialog(). Actually I wish to select all files in the directory automatically by code. Is it doable? How?? -- Regards Sharon G....more >>

In my web application i use satalite assembly to localize my web form.. Instead of set the each control text to the resourcemanager getstring() method i try to use foreach loop private string rmg(string key) { return resource.GetString("key"); } private Literal ctrl_txt() { f...more >>

Hi, I have in a database models of cars, CarID int CarName varchar CarFeatures varchar CarImage binary I have a class Car that have the properties: ID int Name string Features string Image byte[] My problem starts here: i have into a page a <span id=CarGenericControl r...more >>

Hi I have the following vb6 code that I need to convert to c# strDBPath = Left(strDBPath, InStrRev(strDBPath, "\")) Thus if I pass in C:\Test 5\Taster.mdb the output should be C:\Test 5 I've tried String.LastIndexOf and String.Substring but can't seem to get them to work....more >>

I have two datagrids on a page and each of them allow the user to add rows. On each datagrid I have validation (required field, reg expressions etc) and my problem is that I only want the validation to work on the datagrid which I click add in. At the moment if I click add in one datagrid and...more >>

Hi, How can I write an XML file on a remote machine in the same network? I tried passing string "\\machinename\directory\filename.xml" in XMLTextWriter constructor but it failed even if I had full rights on the directory. Thanks Himanshu...more >>

I was wondering if anyone knew how to write a regular expression which validated that a field was 200 or less characters long. Its this part i'm interested in working out. Can someone help me please. ValidationExpression="^{0,200}$" <asp:regularexpressionvalidator id="Regularexpressionvali...more >>

Hello, I am using a COM component in an ASP.Net application. I have properly registered it. But at some instances it throws follwoing exception: [COMException (0x80010012): The callee (server [not server application]) is not available and disappeared; all connections are invalid...more >>

Hi, As topic, Can we add an event handler that has different delegate? Example: I have a method that takes no parameter: public void xyz() I would like button1 to fire that method onclick. button1.Click += new EventHandler(xyz) I understand that button click event should has para...more >>

Hi. I would like to create an instance of a COM server from C# code. I now use the System.Runtime.InteropServices.Marshal.GetActiveObject() function to get the running instance (but this implies that there is an instance running). But I would like to check (at the start of my code) wether th...more >>

Is it possible to add a tooltiptext on the button control? How? Ryan. *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

Is it possible to disable the paste contextmenu of a control without creating a new contextmenu to handle this, so i wont be able use to paste on that control. Ryan. *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it!...more >>

I have the following code which runs ok Jet OLEDB:System Database=C:\\Test\\system\\Sys.Mdw; When I use Jet OLEDB:System Database=@C:\Test\system\Sys.Mdw; or Jet OLEDB:System Database=@"C:\Test\system\Sys.Mdw"; It dosn't work correctly, any ideas? ...more >>

Hi, Can anyone tell me if it's possible to pass a method to another class? Example of what I would like to do: class1: public void MyMethod() { code here } class2: public void CallThisMethod(something MethodName) { MethodName(); } Then I will call this code from class1: c...more >>

My application uses multiple-threads and is a kind of AI simulation or ALife. This works fine but I was wondering if and how one can make use of hyper-threading in C#? Thanks for any hint, Francois ____________________________ The Netron Project, http://netron.sf.net ...more >>

Hi. Is C Sharp the way to go for learning dotnet programming, or would VB.net be equally as rewarding to learn? My experience is limited to BASIC and PYTHON programming. Thanks. Dallas ...more >>