Hello, Yesterday I just started using Visual C# 2005 Express Edition and I'm trying to load external DLLs. I started out with trying to load just one like so: [DllImport("libtest.dll")] static extern void connections_init(); However when I call the function that wraps connec...more >>

This code works: Type t = myVar.GetType(); System.Reflection.FieldInfo[] fields = t.GetFields(); foreach (System.Reflection.FieldInfo field in fields) WriteLine(field.Name + " = " + field.GetValue(myVar); But, when one of the fields is an array of string, this will just print: field...more >>

One more for today.... As I add more and more lines to my RichTextBox the array that holds its strings gets bigger and bigger and the vertical scroll bar gets smaller and smaller until the string array finally runs out of memory. I'd like to set some line limit and once that limit is reach...more >>

in visual studio there are pinned panels. they are very responsive. How can create in my c# application pinned panel that works like vs also? so far I found nothing form google , built-in help. I know on PC's with less capable graphic card, the pinned panel may well become a bottleneck...more >>

I have written a Windows service which is consuming a webservices. When i am trying ti install the windows service using installutil.exe it gives me an errorr:- Exception occured while initializing the installation: System.IO.FileNotFoundException: File or Assembly name documnets, or one ...more >>

Hello, I'm trying to implement a backspace on the "bottom" line of a multiline text box. I want it to be ignored if it's already at the beginning of that line. I think I've got the part about removing each character from the string that represents that line, but how do I back up the caret...more >>

....just like the MIDL "enum" so I have access to this thing from the host side. Is it as simple as giving the enum a public attribute/guid? thanks! tima at predator dash software dot com...more >>

Hey Guys, I have a problem. I need to call event handler of buttons placed on a form on its keypress event. The Problem is i need to read a file which includes the button name whose click event is to be called and the KEY whose press event whould trigger the respective button's click event...more >>

I need to use the OpenFileDialog class to get the name of a file, but I don't want it to check to see if the file is really there since I may just want to type an arbitrary name in and create it later. I assume the correct way to do this is to handle the OK button click event. I found the fo...more >>

I wish to compare two structs via == but it does not compile. I can overload and create my own == but am I missing something that c# already has implemented? ~titan ...more >>

I tried to connect to an existing Oracle Database with the following ConnectionString: using System.Data.OracleClient; // + Added Reference "System.Data.OracleClient" string cs = "Data Source=XE;User Id=karl;Password=mypasswd"; connection = new OracleConnection(cs); connection.Open(); Th...more >>

Assume the following sequence of user actions starting with a Form and an e.g. StatusStrip: 1.) User doubleclicks on the StatusStrip 2.) VisualStudio jumps to the new generated source code mystatusstrip_itemClicked() { ..... } 3.) The user deletes this function from source code (because h...more >>

I added a StatusStrip "Sstrip1" to a Form "Form1". In the procedure private void Form1_Load(...) I added the following statement: Sstrip1.Text = "Text in my StatusStrip"; Unfortunately this text assignment is not recognized. When I call the program the StatusStrip is empty. How ...more >>

Is there a way to access the actual datatype of a property when looking at the PropertyInfo? For example: Property defined: public Nullable<DateTime> EndDate { get { return endDate; } set { endDate = value; } } What we would like to do is while accessing the properties contain...more >>

I have an application (windows service) that in the beginning reads data rapidly into a collection of large object trees. Each object tree in the collection is about 100mb and typically there are 6-20 object trees in the collection. When the application starts and the data is being read in...more >>

Hey all, I have to validate a textbox in windows forms for alphanumeric characters such that non alphanumeric key presses are ignored. Some help would be appreciated ...more >>

Hi, I have three datagrids in a WinForm. I want dataGridView1 to retrieve data and make dataGridView2 visible and the same with dataGridView3. Any help is appreciated. Thanks, Trint ...more >>

I am using [Description("A description")] in my code. I want to be able to reference a text string within my "Resource file" like this: [Description(MyApp.Properties.Resources.strADesciption)]. The issue is that Description requires a constant string. Is there anyway to reference my re...more >>

Dear All, I need to export data of unbound datagridview to XML file. Since my DataSource is NULL, What other options do I have? Does i need to make 2 loops (on all the records and inside loop of all the cells) read data and export it to XML? TIA, ...more >>

I want to read/write user settings. I thought about using .ini or .xml files. Are there classes in c# to handle this? The stuff I find on the 'net seems old. Titan ...more >>

Hi, I have a dataGrid that when I try to add a row, I can't keep the data separated into columns. Here is what I tried to separate the columns (a coma): string[] completeProductsString = new string[1000]; DataGridViewRowCollection rows = this.dataGridView1.Rows; completeProductsString[j1] =...more >>

How do you test a string to see if it contains special characters? I want to ensure that any names typed into my form has only letters (and maybe allow a dash and an apostrophe). I can loop RealName.Contains("..."), but there must be a more elegant solution. ...more >>

Hi all, I am new to .net and that c#. I am currently working for a project that includes migration from vb6 application to c#. VB6 application communicates with a modules developed in VC++. Now, the same logic I am trying with c#. That is c# application to interact with VC++ modules. I...more >>

I have a notional Boolean value stored in the Registry. Actually it's a REG_DWORD capable of taking values of either 0 or 1. So, I need to populate a checkbox on a form dependent on this value. 1. I tried this: chkLogToFile.Checked = Boolean.Parse(LogFileKey.GetValue("LogToFile")); ...more >>

Hi, I'd like to know current webbrowser's method ( get or post), how can I know? I looked for a long time, but I still have no idea. who can help? Regards ...more >>

Hello everyone! It's my first post here. Could anyone please explain me the behaviour of the following code? <code> interface IFoo<T, P> { void Bar(T t, P p); // (1) void Bar(P p1, P p2); // (2) } class NastyFooImpl : IFoo<int, int> { ...more >>

I have to pass a byte array as an input parameter to a function in a propertary dll. The c++ signature of the original function is the following: ---------- C++ ---------- int ncWrite(unsigned long ObjHandle, unsigned long DataSize, void* DataPtr) ---------- end C++ ---------- >From ...more >>

Hello, I have a Queue and 2 BackGroundWorkers. How can I set one worker to Peek in Queue and the other one to Dequeue the first element from queue? Thanks ...more >>

If I have an XmlNode/XmlAttribute and I want to convert its value to a "native" c# type (for example boolean), how should I do? I can't (for example) simply use Boolean.TryParse, because Xml Boolean considers 0 and 1 to be "good" values for a boolean type. --- bye ...more >>

Hi All, I'm hoping someone could advise me on how to make the following two operations atomic. I have a Places table and a PlaceBoundaryPoints table. When I create a "Place" I need to add a Place row and a number of PlaceBoundaryPoints (e.g. a place is made up of several boundary points...more >>

Hi all I want to select from a datatable like below: mydatatable.Select("Name='"+this.textbox1.Text+ "'"); it works properly but when I edit textbox1 with something like this re'fd that contains ' or " the Select gives me an error "Missing Operand". how can I solve this problem. thanks ...more >>

Hi! Where can you see if a class has overloaded operator(like +,-) in Microsofts NET class library on the net? They list members, properties, fields and other stuff for a class but no operatoroverloading. It would be nice to know if a class uses overloaded opetors so you know if its the ...more >>

Hi! Where do i find .NET class libary in Visual studio? I mean if you would like to browse through the classes and members. Or if you want to search fr specific classes or members. Thanks in advance. Jacob...more >>

Hello, On a form, I place a buton with an OnClick event. No problem. I set the visible propperty of this button to false. And reset it so true again, the event isn't fired ans my app same to be crashed ... Any idea? Thx ...more >>