Hi, everyone After adding a control into a container like form using form.controls.add(myControl), how could I reference it For example dim aControl as new butto me.controls.add(aControl then I want set backcolor of this button, how Thanks william...more >>

Hi All, In c# or vb.net, when i throw the print Dialog, is there any way i can retrieve the value that the user has chosen for the pages to be printed per sheet? for e.g. in the "Layout" tab of the print dialog, there is an option which says how many pages needs to be printed per sheet. Bu...more >>

Hi, my program is written in .NET as a classic desktop application. I moved the application to a fileserver now. The server is in the same network, I can start the application like \\192.168.1.20\myDir\myApp.exe (I configured .Net Framework permissions to Full Trust for URL file://192.168.1.20/*...more >>

Hi, Guys After adding a control into a container programmingly, for example, myForm.controls.add(myControl), how can I reference this control in my code Thank william...more >>

I've got a DataTable I'm trying to bind to a ListBox. listBox.DataSource = dtCustomers; listBox.DisplayMember = "customer_name"; listBox.ValueMember = "customer_id"; The returns my all the rows in the DataTable but in the ListBox all the items are "System.Data.DataRowView". What am I ...more >>

hi, I need to use a dataset without binding to a text box. i need to move value from dataset to textbox manually. does anyone have any sample for this. Thanks and regards atif ...more >>

Flame on. I am SICK and TIRED of the incredibly LOUSY documentation that Microsoft provides for creating custom components. Here's my situation: I've implemented a custom CodeDomSerializer class to handle serialization of my component's state to and from the InitializeComponent() method. ...more >>

Hi, all I got a problem when I create a custom control. I created a custom Button and it works just fine. But the Windows Form Designer always remove the WithEvents keyword of my object declare. If I manually add the keyword, it works for a monent and it will automatically gone after some time. W...more >>

Hi All, I have an application which has certain preferences stored in a file. The general architecture of reading these preferences is, There is a preferences accessor class (Preferences) which has 2 static methods GetValue and SetValue. My application accesses the preferences through this cla...more >>

From my application that I will be widely deploying, I have several applications that I need to check for programatically to see if they are installed or not. I also need to get the path to these applications. After searching through the registry, I don't see any single place that holds this i...more >>

how can i open the default web browser, from my vb.net windows app? thanks, ...more >>

I've created a custom control that inherits from TextBox. Everything has worked fine up to now. I bind a typed DataSet to my control and when I fill the DataSet, the appropriate record is loaded. I call BeginEdit on the row. Then I change the data in my app, and call EndEdit for the row. But when ...more >>

Hi, I have an application developed in vb.net. I would like to distribute the application in a CD with auto run. If the target system doesnot have the frame work installed, then the frame work should be installed automatically. I will include dotnetfx.exe in the same folder where setup.i...more >>

Hi, For a telephony-application I need the following: When the user presses F10 in whichever application (Word, Excel, Notepad, Custom made Applications, ...) my program has to capture this, and go look in that application and select the telephone-number the user has put his cursor on. I...more >>

How can I get the value property from the item collection in a ListBox control. I know I can get the selected value with listBox.SelectedValue, but how can I get the value property of all the selected items? I would like to loop through the list and look and the values. I wish somet...more >>

I'm having a problem when trying to compile a user control from the command line. I know I have the path mapped correctly but it immediately throws the error "vbc is not a valid Win32 application". This is driving me nuts N...more >>

Hi I would like to know if anyone knows how to implement the funcionality of freezing columns of a datagrid (like in excel for eg.) Thanks ...more >>

Hi Al Hopefully this is will be quite simple to answer !!! The following code produces the error "Object reference not set to an instance of an object Dim objStream As StreamReader = New StreamReader(strFileName Dim objStringBuilder As StringBuilder = New StringBuilde Dim strLine As Strin ...more >>

hi frineds. Recently i baught .net enterprise developer licence. I baught this licence to work with oracle database in windowsforms.I instaleed this and still i couldn't access oracle databasde.Could you please help me out regarding this.I worked with sql server in the "stadered" version. But ...more >>

H I have created a class to inherit the textbox. Beside the mouseOn event, I want the textbox show a tooltip when the textbox is got focus by using the keyboard's TAB key. How can i do it by using VB .NET Thank you...more >>

I am having a problem with two different applications developed under 1.0 The first is a simple wizard-based app that takes the user through a couple of steps. I have the only form set to start up in the center of the screen, but on Win98 (OSR1) it doesn't (newer os's are okay) The second is an...more >>

Hi I have defined my business object OrderItem as shown in the sample code fragment below public class OrderItem public event EventHandler UnitPriceChanged private decimal m_unitPrice = 0.0m .. public decimal UnitPrice get { return m_unitPrice; set ...more >>

Hello, does anyone know how I can draw a ring (it needs to be an elipse) around some text. (The text is three characters long) Thanks. ...more >>

Hello folks ! can anyone tell me how to draw some text that is on it's side going up the page ? Thanks, Ian. ...more >>

I have a form that creates new objects in all sorts of fashion using vb.net. Some are created when the form opens with Private varName as new Object() just near the form class In some subs I have Sub Internal1() Dim myVar as new Object() End Sub in the declaration section ...more >>

Hi, I have notice some file with extension *.ascx Could someone tell me more about it. I am currently got a fully done web project, but the files with extension *.aspx Is there any way to compile such file to *.ascx. Or perhaps someone could tell me how to create *.ascx some useful referen...more >>

Hello, I have two froms. One is main. the other is opened from main by Dialog style. I want to pass value(e.g. grid cell value) from other form (ShowDialog) to main form. How can I do this. thanks burhan ...more >>

Hi, I was wondering if there was a way to make sure only one instance of an app is running in memory in C#. To explain my point... Consider an application like Winword, it only runs once in memory and every time one opens winword a new document is opened but the same instance of Winwo...more >>

Does anyone know where I can find any reference or code samples on recording WAV files using C#? Thanks in advance.. Brian K. Williams ...more >>

I am getting this error while using GetHostbyName. (11004) The requested name is valid and was found in the database, but it does not have the correct associated data being resolved for. How can I deal with this. I know the domain exists. Thanks ...more >>

Hello all I would like my Windows Forms C# application to exhibit the following behaviour 1. Display a Splash Screen, topmos 2. Display the main application MDI window behind this. Make sure it is properly visible 3. Load database data, etc. A relatively time consuming task 4. Remove Splash S...more >>

i can do this using split as well as other ways, but i would think that there is an easier way to get to just the filename.ext from a rather long path. it's been a while since i pounded code but i remember at one point, there being functions for such a purpose. i looked through the .net stuff and ha...more >>

I am using a standard VB.NET Textbox to allow the user to enter a SSN in a windows form which I submit to SQL Server. I would like to mask the input so the format is of 999-99-9999 to limit bad data entry. Is there a way to do this? ... ...more >>

Hello, I'm buildig an application that wil allow users to create their own forms. In the form builder the aim is to allow them to pick from 3 ro 4 predefined types of windows controls ( i.e. text box, list box e.t.c. ) I believe the easist way would be to create 4 custom controls tha...more >>

Hi everybody: I have a dialog class inherited from Form. It has several list views that are populated by several threads. My problem is that my overridden OnClosing(CancelEventArgs e) method is not called while the threads are populating my window. I also have one "Cancel" button. My butt...more >>

my system runs Windows2000 server with sp4, dot-net framework version = 1.1 (1.1.4322), Visual Studio 2003 (7.1.3088), making a windows application in C# that uses HttpWebRequest and brings = data, after about a minuete from the end of the response, while the = window stays open, i get exception...more >>

Hi, I have a listview in "detail" mode with several columns. But because the number of items displayed is rather high, I would like to provide a filter For example allowing the user to filter on the text of the second column If he would then type 'AC in a textbox the listview would show o...more >>

Hello, sorry if this is posted in the wrong area, but any help and/or direction would be appreciated. I have a combobox on a form that is bound to collection. The collection however starts off empty, and as the user manipulates data, values are added and removed from the collection. The com...more >>

I've added an XML file to my project, with data in it, but when I BUILD the project the xml file seems to be compiled into the executable or one of the DLLs. I want the XML file itself placed into the assembly so that when deployed it can be edited by the end-users - a kind of application config...more >>

I am populating datagrid dynamically. How can I adjust column widths?...more >>

Dear All, I am designing a WinForm Application and would like to keep track of all the Global variables declared in my application. The logic for this that I have in mind is to create a class that has a hashtable and all application programs store their variables in a hashtable by calling my ...more >>

I am having a problem with winforms in C#. When I run the release build of an app that I have finished, the app takes an excessive amount of time loading and switching between forms (mdi). I know there are several routes I can take to deal with the loading time, but I am really confused about the ...more >>

Hi, I have a panel with AutoScroll set to true. The contents of the panel is large enough to show the vertical and horizontal scroll bars. Is there a possibility to get an event whenever the user scrolls horizontally or vertically? The problem is that I want to synchronize the scrolling wit...more >>

I need to auto paint line at Form_Component(Ex: button, RichEdit, etc....) I write code in Form_Load, the code run before the Form showing, so it can't paint at Form_Component How to Run code after Form_Load(mean after the Form showed)...more >>

hi i have written a function that can paint some graphic on a windows from, But how to call that function after the windows from is loaded. (it mean that the windows from will show on the screen first, and then the function start to show graphic) thank you :P ...more >>

using HttpWebRequest to make HTTP request t web server and get resulting HTML in the response, when the response includes hebrew characters (not unicode) these characters are moved away after StreamReader reader = new StreamReader ( response.GetResponseStream() ); strHTML = reader.ReadToEnd();...more >>

I have a simple windows form app written in c# that contains a tab controll with two tabs. When the app starts, it spawns a new thread which checks a file every couple of seconds, if the file changes, the thread changes the selected tab in the main form. In the form, the tab changes, but does ...more >>

Hi: I would like to make sure listview top item is the current item and has focus reticle, after scrolling. But the FocuedItem is readonly and using SelectedIndices or selecting item using selected property has no effect. Thanks A.V.Ebrahimi vakilzadeh(AT)kzlabs.com...more >>

I am fairly new to C# and I want to do the following: I have a main form and have added a second form, frmScreen, to the project, which contains a button and a TextBox control. In my main form, I create an instance of this second form and show it, like so: Form frmMyScreen = new frmScreen( ); ...more >>

I have a helper app that runs in conjunction with my Main app. I want to check to see if the main app is running once I intiate the helper app and shut the Main app down if it is open. ...more >>