Hi, I want to start a windows form from a console application within a new thread. Is it reasonable to use the BackgroundWorker component for that? Are there any other/better startegies for accomplishing this task? (The form is used to display an encoding preview from windows media encoding...more >>

I'm trying to bind a DataGridView to a generic List of objects. My problem is if I initially bind a DataGridView to a list with no entries, I can't seem to get it to rebind to anything else successfully after that. Below is a sample of the sort of thing I'm trying to do. The form has a D...more >>

Can some angel tell me how to send HEX commands using the Whidbey Serial port component [language C#]? I want to drive a printer that accepts commands like "GS V", "LF", "ESC * ...." etc. Thanks in advance. -- Radhakrishna Banavalikar Vasant-Vihar, Thane, INDIA....more >>

Hi everyone. I'm using visual studio 2005 and programming with VB. Is there anyway to have your application hide to the taskbar by the clock. The likes of the way norton anti virus auto proctect and outlook hides there with just there icons showing. Anybody know how to do this? Regards, ...more >>

Hi. I have a component that interacts with the main form. I would like to have this component, when initialized, to automatically get a reference to the form that is hosting it. I was hoping for something as easy as finding the form that a control is attached to. However, I component has...more >>

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I'm binding an IList to a WinForm combox box DataSource (ComboxBox.DataSource = myList) and am unable to add a blank row to the top of the combox. I want users to have the option to not select a value. I've tried the following things: myBox.Items.Insert(0, null); ((IList)myBox.DataSour...more >>

Hi guys, I'd appreciate it if you link me to an article that describes how to access the modem and making/receiving voice calls over it, using vb.net (windows forms or so ) !!! thanx a million in advance !!...more >>

I have some code using forms and ShowDialog that was previously working perfectly well, but now throws ObjectDisposedExceptions with message 'ObjectDisposedException - cannot access a disposed object called "Icon"' when ShowDialog is called. Anyone had this kind of error before and any ideas...more >>

Basically, what I'm trying to do is as follows: in one .vb ... Friend Class frmBase(Of T) Inherits System.Windows.Forms.Form Dim m_Obj as T .... End Class in another .vb ... Friend Class frmDerived1 Inherits frmBase(Of SomeConcreteType) .... End Class The code itself wo...more >>

Is there a way to get the page number and number of pages for a report (rdlc) in the designer? I can't seem to find anything that would put this out in a text box. I'm trying to replicate what an old MS/Access report shows and I can get just about all the items except calculated page numbers...more >>

Is there a way to alter the line spacing in a RichTextBox?...more >>

I have a .net 2.0 application which sits in the taskbar. When the user right-clicks its icon they get a menu which allows them to either go further into the application, or to quit out. The application is designed to sit in the background all the while the user is working. Standard stuff. ...more >>

Dear All I am having trouble with my datagrid custom column style which shows a combo box. I have derived from a DataGridTextBoxColumn for simplicity. It is almost working exactly how I would like it to, but I have problems with the new row behaviour. I would really like it to behave in th...more >>

Hello, I am using .NET 2.0 and building a custom control. There are multiple graphics elements that I would like to render on the surface. When drawn together they form the complete control image but need to be managed separately because they might have different scale, units, move indend...more >>

Hi there, I have a custom control which i want it to draw ina rectangle a picture and i have two buttons to do zoom in and zoomm out. I want that when i click on one of these buttons make a zoom on the drawing to see with more detail a region of it and scrollbars appear in the sides of teh ...more >>

Rudraksh is a free Web/Internet Webbrowser. Please check the link to download it http://www.planetcreativa.com/rudraksh.htm ...more >>

Hi. Does anyone know how to create a visual studtio type GUI using C#.Net. I.e. an MDI application, but where there is no real parent form, rather a set of floating, dockable child forms that will 'stick' together, etc.? I'm waiting for VS.Net 2005, so I don't have VS installed at the momen...more >>

Hi, What is the typical memory usage for .NET application 2.0. My app is around 30 meg, but sure sure that older version was around 2 megs. What would cause dramatic change in size? ...more >>

Hello, I'd like to make something easy, in theory. In C#, I have a database, and some textbox, I'd like to bind theses textbox, that's that work. But I'd like update the change (update database) and I push on a button, I tried the Update of the DataAdapter but that's not work. Could ...more >>

I am creating winform app vs.net 2005 and was looking for good patter/practice for offline/online app. In particular how to best store local and sync with server when online. I noticed there is a MSFT block but it is dated 2004. Is there an updated block or is this still a best practice? ...more >>

With .NET 2.0, insert a ToolStrip onto a form and add a ToolStripCombobox item. I don't know if I'm flat out missing something, but I cannot set the width of a toolStripCombobox any smaller than 75. It just seem ridiculous. toolStripComboBox2.Size = new Size(35, 25); When you execute th...more >>

Could not find a part of the path... I have developed an application that has a filetype, Filename.llsx, association. My problem is tha on some computers i get a System.IO.DirectoryNotFoundException when i try to download files of my filetypes from the internet. Here is the code that tr...more >>

Hi, We're currently developing a smart client application. It is a WinForms UI that uses WebServices to retrieve data from an Oracle database. The application will have several forms that will use a relatively static set of tables for populating drop-down lists. I'm thinking that caching...more >>

Hi I am using .net 2.0 windows forms. I have a combobox with following properties. DropDownStyle : DropDown AutoCompleteMode : SuggestAppend AutoCompleteSource: Listitems Now When I run the form and go to the combobox and type something it works just fine. combobox suggest items as well...more >>

Hello, I've got a question regarding a small amount of flicker I am seeing when a form is first drawn that has a transparent background. I have a custom panel that I'm drawing myself which takes up all of the client area of a form (rounded corners, gradients etc). I have set the ba...more >>

I have a whole collection of points, they are actually Latitude and Longitude points that make up a specific area. The points that I have make up the outer edge of the are as well as the interior of the region. What I'm looking to do is create a Path object that will completely bound all o...more >>

Does anyone know of a .NET control for building SQL Query command that can be embeded in a Windows Form? I am developing a Windows form application and want to give user a visual tool to design SQL querys (SELECT only). The designer needs to be able to work with a .NET dataset directly wit...more >>

I have VS2005 Team Edition for Software Developers Version 8.0.50727.42 with ..Net Framework 2.0.50727 I have created a Windows Form Project. I have installed OWC11. I have Office 2003 installed on my machine. I have added references to Microsoft Office Web Components 11.0, Microsoft.Office...more >>

I have a ListView control, and anytime I manually set the selected item, the original item OnSelectedIndexChanged event fires twice. Here is a sample of what I am doing in the OnSelectedIndexChanged function: if ( listView1.SelectedItems.Count == 1 ) { MessageBo...more >>

hi, I am new to winForm development. When I am using the .NET 2.0 MDI Forms, I want to close one of the child form at the very begining. For example, I want to close Form1, so I write public Form1() {this.close();} And in the MID Parent, I write form...more >>

Hi All, I am using a datatable to store some data from the xml. I need the row number where a particular string exists (Note: All values in datatable are unique). Please help me in this regard....more >>

Hi, Is there any way to check if the application is in debug mode or running from the exe. Thanks in advance, Debi...more >>

I'm just venting. I finally got around to converting a big WinForms app for my biggest client to .NET 2.0. I've heard all along that application settings are now writable, which has always been one of many bones of contention with .NET 1.1 for me. So I get to the point where I am going to...more >>

All, Using VS 2005, C#.NET, SQL Server 2005, W2K3. We are developing a web application that would be shared by numerous customers for information management. Some of those customers want variations on the usual form layout. For example, we have a form where the user can enter their depe...more >>

Hi, Why do I have this error in one project but not another? Type of member 'DataReader1' is not CLS-compliant. ...more >>

>From my main form, I can open and access a modeless form. However, if I then open a modal form (from the main form), the modeless form will no longer accept keyboard and mouse input until the modal form is closed. Is there a way to allow the modeless form to continue to receive input? As an...more >>

I am looking for technique which allows to fluently move several images over the form without using DirectX & Open GL. Several images should be moved simultaneously but with different speed. Also one more feature: I should be able to change their (moved images) opacity during moving. Does anyb...more >>

I have a user control that contains a grid. I want to set focus to the grid when the user control receives focus. I have tried calling grd.focus() for the gotfocus of the user control, but that doesnt work. Any ideas? Thanks...more >>

I have create two windows applications called WinAppX andWinAppY. First I opened the WinAppX . When ever i opened the WinAppY ( second app ) , the WinAppX should get notification , after that these two app should communicate each other someway. How can i do this.. ...more >>

I have a windows form with a button on it. The button anchor property is right and the forms autoscroll property is set to true. When adding a second control (also anchor.right) to the left of the viewable area, the scrollbar does not activate. Why? When using anchor.left and adding controls ...more >>

We have an application which dynamically loads an assembly and creates instances of classes. For this we have written a factory class which reflects the assembly and creates the classes and returns the created objects as plain objects. The caller method casts the object returned by the object fa...more >>

Hi, I'm creating a control that overrides ListView and so I'm working on redrawing everything myself with some changes here and there... But I'm having a problem with drawing the text inside the rectangle on LargeIcon mode... I thought I'd finally discovered the solution with TextRenderer b...more >>

I'm creating a custom control with design time support, i wish to create the a property which is xml document and let the deisgner to use the property selector in VS.Net to browse to the xml file and attach it to the custom control, how can i do that?...more >>

Hi, I'm consulting on a project that has two solutions, a client solution, and a middletier solution. The middle tier solution is hosted in asp.net. I want to debug something in the middle tier, and I've been told that I have to attach to the asp.net process. So I add a breakpoint on th...more >>

Is there any way to control a TextBox Size property's Height? Besides making it Multiline? Everytime I set the Size, it always reverts back to Size.Height = 20 (or whatever value based on the current font, I think). I've tried setting the Min/Max Size but that only seems to hold during design...more >>

I'm using the following code to show/hide a form located inside a panel that is located on my main form. The panel is set to DockStyle.Fill so that when the main form is resized the panel is also resized. The problem is that the included child form never resizes beyond it's initial starting ...more >>

i was finish project with visual basic 2003 + SqlCE database for POCKET PC, and now i have to create setup can someone help me a little, couse all that is realy confused for me :-(...more >>

I am working on rewriting a Fox 7 ODBC app. and teaching myself .NET in the process. So far I have over 130 of the screens rewritten, but debug performance is terrible. It would be much better if I had each screen as seperate solutions, but then I'm constantly having to remove and readd refer...more >>

Hi all, I want to raise the event click of a control by code. How can i do that ?? ...more >>

When makign a change to a collection using the default editor in the property grid, you do not get a value change event. Now I know I can code up my own editor and deal with the valeu change myself, but I have 40 lists I'd have todo this with and it seems like there should be a way to get the d...more >>

Hi, All: In ListBox and ComboBox when you type a letter, say 'k', it will jump to = the first item starting with 'k'. I want to disable it and do my own = search that can search more than one letter, like 'kite', not just one = character which ListBox currently does. But I cannot disable ListB...more >>

In my application I have some tool window. some of these tool window do accept key input. yet I would like key shortcut (CTRL+S, F2, etc...) to be handled by the main menus of my main window. how could I achieve somethink like that? ...more >>

I have a process that take some time to process data in formA. While processing the data I wish to pop a "waitingform". The waiting form have it's own thread and show the process advancing between 0 and 100%.There is a timer within the Waitingform, on each tick the progress percentage is read an...more >>

Hi, Many people using this font...Is there a system or screen requirment. http://www.microsoft.com/downloads/details.aspx?familyid=22E69AE4-7E40-4807-8A86-B3D36FAB68D3&displaylang=en I could get used to it as it probably save screen space. ...more >>

Hi, All: Do you know how to do drag & drop multiple items between listboxes? I = can only do with single selection. Thank you, Dennis Huang...more >>

Hi, How can I capture the text output of a console app? For example, I would like to capture the outpur of "qwinsta" Thanks. ...more >>

Hi, Is there a way to kill a Terminal Server session from vb.net? I have to constantlly access our servers to reset ureser that get hung. I would like to have a web interfave that I can access via my PDA/Phone. It dose not have to be a wab page that does this. I could write to a queque that ...more >>

I am painting my control entirly and need it to show scroll bars when it's being resized below it's min size. Please suggest how to go about this. Simply setting autoscroll to true does not work. Thansk in advance....more >>

Hi all I need a suggestion. I have a customer that wants the grids in the application i'm going to develop lokoking as much as possible as Excel grids. I suppose he wants the filtering possibilities of Excel in the header of the grid, the possibility to copy&paste from one cell to the other e...more >>

Hi everybody, im working in infragistics ultragrid. Can any one know how to get the cursor in to active cell . i need to check the empty field before leaving cell. if its empty then cursor should be forced to come into the empty field. ive tried in beforedeactivecell event but the cursor is not...more >>

Hi everybody, im working in infragistics ultragrid. Can any one know how to get the cursor in to active cell . i need to check the empty field before leaving cell. if its empty then cursor should be forced to come into the empty field. ive tried in beforedeactivecell event but the cursor is not...more >>

Hi All, This SHOULD be simple, but I just can't see it... I have a combo box which uses a dataset as its list source. The displayed member is a date column from the underlying table. When I run it, the date in the combo is formatted as d/m/yyyy hh:mm:ss, which I don't want - I just want t...more >>

I've been having trouble correctly processing the "Enter" key on form controls. Here's what I've done: Set the "AcceptsReturn" property to true Overridden IsInputKey and KeyDown; on KeyDown, if the "Enter" key was pressed, I set e.Handled to true. So now I'm receiving the event, which is...more >>

I'm trying to programatically add new lines to the content of a (System.Windows.Forms.)TextBox and, while I have found a solution, I feel that it can't be very efficient. There must be a better way. I first tried: textBox.AppendText( "\n New line" ); But that didn't work. Nor did v...more >>

Hi, I am having difficulties creating a derived class for DisabledDataGridViewTextBoxColumn and cell when the VisualStyle is not supported. Basically I am down to either using ControlPaint or Graphics to achieve this. But with Graphics, I am not sure how I can make them diabled. Below are ...more >>

Is there a way to show data bound to the datagridview vertically instead of the default horizontally? Any samples or guidance would be greatly appreciated. Thanks in advance... Chris ...more >>

I'm writing the download stub for a Smart Client, following the QuickStart samples that come with the Updater Block 2.0. Tested against my local IIS, the stub works perfectly, but when I deploy it to a server, I get "The system cannot find the file specified" in my browser. Local Machine i...more >>

Hello All, If I use - ContractPrintDialog.UseEXDialog = true; - My dialog does not get focus after showing thus having a caption (dark bleu) of the active window, I always have to click on the dialog before I can type or before a button responds. When I do not use the extended dialog ...more >>

Hello all, IS this a bug or what am I doing wrong; I make a print Dialog ContractPrintDialog = new PrintDialog(); I set the property's of my PrinterSettings; ContractPrintDialog.PrinterSettings.Duplex = System.Drawing.Printing.Duplex.Horizontal; I show my dialog. myPrint = Contr...more >>

I put a text box on a form and set it to "multi line". I use it to show some log information. Every time there is some information, I use TextBox.AppendText method to add a information string and a "\n" into the text box. There will be a line break after the infromation string for the "\n" c...more >>

i'm building an desktop windows app in C#. the main menu for the application will be different depending on the admin rights of the user. i've built the entire app. in delphi and i simply activated or deactivated the menu items in that case, but all the menu items are visble. i'm hoping / thinki...more >>

I've make some NumericUpDownColumn class that inherited the DataGridTextBoxColumn and override the SetColumnValueAtRow method as below: protected override void SetColumnValueAtRow(System.Windows.Forms.CurrencyManager source, int rowNum, object value) { try { base.SetColumnValueAtRow(sour...more >>