Hi, I know that you should not update the applications GUI with code running in the BackgroundWorker thread (or any other thread). But is it OK to construct, show and update new Forms inside the thread? The difference I'm trying to point out is that you don't update any existing GUI, but in...more >>

I have a WinForm application. I would like to be able to read a PDF, and draw it onto the GDI+ drawing surface, along with other commands that I would draw on the surface, to then print it. This can be done with a WMF file, so one option is to preconvert the PDF to WMF, but I would to read the...more >>

How can I put a textbox in overtype mode? Using the insert key on a webform works fine, but it does not do anything on a winform textbox. -- Arne Garvander Certified Geek Professional Data Dude...more >>

How can a write a filter for a textbox that only accepts numeric input? I tried the maskedTextBox, but i did not like it. -- Arne Garvander Certified Geek Professional Data Dude...more >>

Hello, I am trying to create a contextmenustrip with drop downs dynamically. I have everything visually working. Each menu appears across the screen as well as each of their corresponding sub (drop down) menus. My problems has become that I need to put some sort of onclick event on these dro...more >>

Hi, I have a situation where I have a MDI Parent form that contains a menuStrip control at the top. When I launch a Child Form I specify: frmChild.WindowState = FormWindowState.Maximized; The problem is that the maximize/minimize buttons on the Child Form appear above the MDI Parent's men...more >>

I was wondering if somebody could show me on how to use relative path in windows application that will work during DEVELOPMENT as well as after DEPLOYMENT. In short, here's my situation. During development the files in my project are located as follows: MyProject\bin\Release\MyApplication.e...more >>

I am writing a bus monitor / protocol analyzer using VS 2005 C++/CLI. Currently I am using a RichTextBox to display the messages. I am adding each message with AppendText. This seems to be very slow; the RichTextBox cannot keep up with the speed at which the messages come in. Is there a fas...more >>

Hello, really hope you guys can help. I'm using a standard NumericUpDown control on a form, and trying to change the increment depending if a Control.ModifierKeys is pressed when the mouse scrollwheel is moved. Default increment is 0.5 When Keys.Control is pressed and I roll the mousew...more >>

hi, i'm facing a strange problem.. In my requirement , I'm suppose to load the data from datagrid into excel file. make the required changes in the file and load the file back into the datagrid. i'm able to export to excel but after i make changes in the excel and load it into grid,...more >>

Hello, I have a form with two similar DataGridViews. They have identical fields. I want to drag multiple selected rows from one to the other. I have spent the evening looking for sample code for this with no success in finding a complete sample. I have tried for hours to work together incom...more >>

Is it web browser control or richtextbox? This is for display only. Also I need to handle link clicks and perform custom actions based on that. Thank you!...more >>

Hi If I have a choice of WPF or Windows Form versions of a control which one should I purchase? Thanks Regards ...more >>

Hi 1. Has ngen been improved in vs2008 from previous versions? 2. How can I included ngen with setup file created by vs 2008 so the setup runs the ngen at target machine after installation? Thanks Regards ...more >>

Hi I have searched for answer to this question on the net but surprisingly no clear answer has come up. How can I open a form hidden in vb.net? Thanks Regards ...more >>

Hi I am looking to reduce app loading time. My question is, if I use the splash screen feature from App Properties->Application->Splash Screen does it add to the app loading time and am I better of running the splash screen using the background worker? Thanks Regards ...more >>

Hi My vb.net seems to be slow on initial loading. My clients are not impressed as they had used the ms access version of the app previously and think that the old app is faster in loading. I understand .net apps need to compile themselves before execution. Is there any way I can speed up th...more >>

Can someone post a link to more indepth samples of formatting a = PrintDocument. I've found some info for the ReportViewer, but not for = the PrintDocument. Specifically, I'm looking for a code example of how to underline text in = the middle of a document; how to draw a horizontal line and h...more >>

I am a web developer by trade, but have done a little with winforms. How can I add a winforms user control to an application without having to create a separate project for each control? From what I have been reading, you need to create a project for the user control, build it, and then add it t...more >>

Hi, This is my first message to this group. I've already search the web, google, this group, found some clues to my problem but found no solution or workaround. So please let me explain my problem: I'm developing an application, which has custom UserControls containing DataGridView controls...more >>

I need to use a control that is just a border, like transparent System.Windows.Forms.Panel (I need to display form's background image). Can you advice on what I can use or how to make Panel transparent? Thank you. ...more >>

I was successfully calling a TableAdapter.Fill command in code which was tied to an SQL stored procedure. I changed the stored procedure to include two additional parameters and it stopped working in code. The stored procedure works when previewing it in the dataset designer. But the line o...more >>

I know this has been discussed before, but I really need a good example of how this works. I am developing an application that houses some user preferences and also will allow the user to save the entire project to a file. Instead of creating XML files that will be saved to a directory, what is ...more >>

Hi, I am trying to dynamically generate a menu, based on entries on a text or xml file. The text file contains the "tree" after which the menu will need to be created. Something like the following: Level 1 -- Level 2 -- Level 2 Level 1 -- Level 2 ---- Level 3 I can read the...more >>

Hi everybody, I am using a form (predefined template) as a splash screen which is being displayed for a couple of seconds. Other than with older versions of VS I don't have to fiddle around with timers and threads to display that form - it seems that the template is implementing that behaviou...more >>

Hi All, 1. This is my string "The description of the problem ERIndia_Bharti / 2/19/2008 8:37:00 PM last comment only ER_Kista / 2/19/2008 9:45:00 AM last comment only ER_Kista / 2/19/2008 9:45:59 AM last comment only ER_Kista / 2/19/2008 9:47:00 AM" I want to extract all those dates in...more >>

Hi I have upgraded a vs2003 app into vs2008. How can I tell vs2008 to target this app for framework 2.0 instead of 3.5? I can't seem to find this option anywhere. Thanks Regards ...more >>

Hi How can my main form capture key strokes and pass them to various controls on the form? Thanks Regards ...more >>

The quick question is: when creating an SQLdatasource using the wizard in VS2K5 which requires a new connection, does VS2K5 create a DNS-less connection or not? The long question is: I've been told that DNS connections strings (Datasource=DNSName) are old news and that I should be using a...more >>

I have a DataGridView "grid" filling a splitter panel and have set: grid.AllowUserToResizeColumns = true; Until just recently the column resize worked perfectly when I drug a header column divider. Now, it has just stopped allowing me to grab the column divider? I can still reorder the co...more >>

Hi, I have a simple memory problem with two forms on a MDI project. The first form (MainForm) open a second one (ImageForm). Both the forms have an instance to a dataset (DataSet1). On the ImageForm Form_Load event, I wrote code to copy all the records from the MainForm.DataSet1.TB_Im...more >>

Hi I created a setup file of my app and remotely installed it on a clients machine. The app bombs at start-up with the error; Error while initializing application: Retrieving the COM class factory for component with CLSID {0006F03A-0000-0000-C000-000000000046} failed due to the following...more >>

I can't be sure my users will have MS Outlook installed, and therefore, I don't know which client they're using How can I generically popup a display, adding the currently open file as an attachment, using whichever email client they have, so they can fill in the subject and 'To' address? ...more >>

I am attempting to set the font to bold in the header of a DataGridView. I am drawing a blank at getting the syntax correct. I want to finish this: gv.ColumnHeadersDefaultCellStyle.Font = Any help is greatly appreciated....more >>

I'm trying to get the window that is currently on top in my application, even if I'm currently working in another application. Something like the P/Invoke call GetForegroundWindow(), but I want it to operate only on my application's forms. I've also tried using Application.OpenForms[], but I don...more >>

Hi, I am writing an application which displays a list of computers on a network and then pings each one and displays the result. To keep the UI responsive, I am doing the ping operation using a BackgroundWorker component. The Ping method loops through a list of Computer business objects,...more >>

Hi I need a vb.net winform app to be able to query a service (also written in vb.net) and get info in return. Is it possible? Is there a way to do this? Thanks Regards ...more >>

Hi everybody, in a VB.Net (VS 2005) application, there is basically three "states" in which controls are to signal what can be done with them. Usually, values loaded into controls may be looked at, but not edited ("Locked"). In certain cases (simplest: user has the permission to change data), ...more >>

Hi, Environment : VS 2005 / .NET 2.0 / Windows XP SP2 Requirement : class MyTextBox : TextBox { // more code } When I run the application my text box caret blinks in its usual place ( at the left ). I want the cursor to be X pixels from the left of the text box and hence...more >>

When selecting a Checkbox using the SelectNextControl() method, i've noticed that the checkbox does not display the focus rectangle. By writing a simple application with a button and two checkboxes (where the checkboes have a tab index value greater than the button's), invoking the SelectNe...more >>

Hi Is there an easy way to allow user to change application settings at run time short of editing the configuration file manually? Thanks Regards ...more >>

I need to save print output to the database for future retrieval. I assumed that the best way to do this was to use a BinaryFormatter to convert my PrintDocument to a byte array - strore the binary stream - then deserialize it upon recall. Unfortunately the PrintDocument is not serializab...more >>

Suppose I have an object that looks like this: public class thing private mOne as string private mTwo as string private mThree as string private mFour as string public property one as string bla end property (and so on, public properties for the others...more >>

Can you have different color text is a standard TextBox? I know you can in a RichText box but what about the TextBox. Same with bolding - can you bold one line of text in the text box and then unbold the next line? Thanks, Tom ...more >>

Hi Is there a way to select 2.0 .net as target framework AFTER project has already been created or imported into vs2008? Thanks Regards ...more >>

I would like to connect a tabpage on a tabcontrol with a function key. I know how to capture a function key. I can programmatically find my selected tabpage. Mytabpage.focus does not seem to do anything. Do I need to create a tabpage click event? -- Arne Garvander Certified Geek Professi...more >>

I am using a TextBox as my status display and "\n" doesn't work. What would I use to go to the next line in a TextBox. I am doing something like: Status.Text += String.Format("Opening {0}\n",Path.GetFileName(strFile)); But the next line just continues on the same line. Thanks,...more >>

This makes not sense at all. I created a textbox on my screen and set the name property to "Status". If I double click on the textbox, it goes to the code page and shows: private void Status_TextChanged(object sender, EventArgs e) { } So obviously, it sees the...more >>

Hello, We are about to start a big project replacing legacy application with an application that will be developed on .NET framework. Some people on our team have experience with application frameworks in Java and FoxPro, and they want to use some equivalent frameworks in .NET like Spring, CSL...more >>

Hi Is there a way to ensure that an app is only run once and if it is run twice it terminates? Thanks Regards ...more >>